Brackett's Corner SEPA checklist with attachments.pdfW71
RECEWED
NOV 0 5 2015
DEVELOPMENT SERVICES
ENVIRONMENTAL CHECKLIST
Purpose of Checklist.
The State Environmental Policy Act (SEPA), chapter 43.21C RCW, requires all governmental agencies to consider the environmental
impacts of a proposal before making decisions. An environmental impact statement (EIS) must be prepared for all proposals with
probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help
you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to
help the agency decide whether an EIS is required.
Instructions for Applicants:
This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this
checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer
the questions briefly, with the most precise information known, or give the best description you can.
You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer
the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if
a question does not apply to your proposal, write "do not know" or does not apply". Complete answers to the questions now may
avoid unnecessary delays later.
Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if
you can. If you have problems, the governmental agencies can assist you.
The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of
land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you
submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there
may be significant adverse impact.
Use of checklist for nonproject proposals:
For nonproject proposals complete this checklist and the supplemental sheet for nonproject actions (Part D). the leasd agency may
exclude any question for the environmental elements (Part B) which they determine do not contribute meaningfully to the analysis of
the proposalFor nonproject actions, the references in the checklist to the words "project," "applicant," and "property or site" should be
read as "proposer," and "affected geographic area," respectively.
A. BACKGROUND
1. Name of proposed project, if applicable: Brackett's Corner,
2. Name of applicant: Brackett's Corner, LLC„
3. Address and phone number of applicant and contact person:
Jake I.vnn /4251 422-0053
:_::_..._.._.....mm _ _.
320 Davton Street Suite 108
Edmonds. Wa 98020
4. Date checklist prepared: September 29, 2015
5. Agency requesting checklist: C rtyITmr l drnora
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6. Proposed timing or schedule (including phasing, if applicable):_
Phase 1: Construction heginning snring 2016 ending Fall 2016 (The 7 most southerlv lots)
Phase 2 Beginning fall 2016 ending„summer 2017 (The remaining 7 northerly lots)
(STAFF COMMENTS)
7. Do you have any plans for future additions, expansion, or further activity related to or connected with this
proposal? If yes, explain.
No
(T F L°C) 1': i'1
8. List any environmental information you know about that has been prepared, or will be prepared, directly related
to this proposal.
None
(STAFF COt M
9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting
the property covered by your proposal? If yes, explain.
(STAFF F CO
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10. List any government approvals or permits that will be needed for your proposal, if known.
uA.W.W&l? c���dt,,O le work e atr% ino,penilit,�i�i Xl �f-way p ��r���t, Ar�l,t�tec��t�t� ����i����vievy Board Al royal
(STAF 41 COMM
11. Give brief, complete description of your proposal, including the proposed uses and size of the project and site.
There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You
do not need to repeat those answers on this page.
Remove ove two existing office bWldin.ware,..(... ig 1 .1 x11,1% -,louse combiae tltie Q ee eltearte is �.rccl rltta,lmmtax
l)arcel. The ppjO...Prois cornposed of 14 detached condomi m units h �trawts rrrsITll �s �t e ill sire orn
Lip
prox imatel ? 100 scluaref atm t ,LOQ.square feet. Ogee the three current tAX parcels rc _ t0klm�,� the site will N
annmximately 1.03 acres -
(STAFF COMMEN
12. Location of the proposal. Give sufficient information for a person to understand the precise location of your
proposed project, including a street address, if any, and section, township, and range, if known. If a proposal
would occur over a range of area, provide range or boundaries of the site(s). Provide legal description, site plan,
vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the
agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related
to this checklist.
4trPPt Address: 8090-9010 212th St SW Fdmnnds. WA. 98026 „/ 21216 R(Ith ,Ave W Edmonds- Wa_ OR026
Legal Description: LOT L BLOCK 3,__,ALIIFRWOOD MANOR NO. ACCORDING TO THE PLAT
THEREOF RECORDED IN VOLUME 10 OF PLATS IIIAGE, to RECORDS OF SNOHOMISH COUNTY
WASIIINGTC7�N E CEP"I" °I1- E WEST 453.56 FElgT AS MEASURED ALONG THE SOUTH LINE..
SITUATE IN THE CITY OF EDMONDS COUNTY OF SNOIIOMISII STATE QF WASHINGTON.
SUBJECT TO EASEMENTS. RESTRICTIONS AND RESERVATIONS OF RF,CORD.
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TO BE COMPLETED BY APPLICANT
B. ENVIRONMENTAL ELEMENTS
1. Earth
a. General description of the site (circle one): lg rolling, hilly, steep slopes, mountainous, other:
(STAFF COMMENTS), . . ..... _....... _�._ ......._._.............. _.. ...�..�...
b. What is the steepest slope on the site (approximate percent slope)?
C. What general types of soils are found on the site (for example, clay, sand, gravel, peat, and muck)? If you
know the classification of agricultural soils, specify them and note any agricultural land of longterm
commercial significance and whether the proposal results in removing any of these soils.
Please see attached soils and drainaee report for exact soil conditions from test nit-, that were dug
(STAFF COMMENTS) f>e-- lb � � .� ��®q� ��b��� � �,,��`S'. Z.
q 9-c�^ 8 �l.® .,/ 1 4� ( �E E:J Qi Caa P` 4.�d®�P r^.- id+ -SA �F9 Q✓ ^'
�1.................... .�.............._..............r......_........_._....._--------- _»-,...----------------------------------- .._----------- _---.....------------._------- ..........
�
u
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe.
None ...noted ...or.. known.
._._................_.............._......_........._........�..�.... ....
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(STAFF COMMENTS) ........................
e. Describe the purpose, type, total area and approximate quantities and total affected area of any filling,
excavation, and grading proposed. Indicate source of fill.
Please refer to the attached eneineers drainaee report.
(STAFF COMMENT. , . .,, r w M., � , ,a.. I,.. .�
f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe.
g. About what percent of the site will be covered with impervious surfaces after project construction (for
example, asphalt or buildings)?
74.8% impervious
(;STAFF COMMENTS)
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
Silt fence. construction entrance. stockpiles covered with clear mastic
(STAFF COM
2. AIR
a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, and
industrial wood smoke) during construction and when the project is completed? If any, generally describe
and give approximate quantities if known.
Normal e mtrr s s ns from m_ITccsr st a lin a� I ent and somedust will be generated during construction deyending
n weather mmconditions. _After comp etion ofconstruction normal automobile cmissions will be cnerated by on -
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(STAFF COMMENTS)
b. Are there any off-site sources of emissions or odor that may effect your proposal? If so, generally describe.
(STAFF COMMENTS)- __ ... __............. _ .__
C. Proposed measures to reduce or control emissions or other impacts to the, if any:
Constroctiotaijn°a. vDlll not _pta ntA; !LLC to beIT carried off-sile off-site1 trucks s wi91 be
controlled. Water will be used for dust control if needed.
(STAFF COMMENTS)_ . ..... ... .-
3. WATER
a. Surface:
(1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and
seasonal streams, saltwater, lakes, ponds, and wetlands)? If yes, describe type and provide names. If
appropriate, state what stream or river it flows into.
(STAFFCOMM
(2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If
yes, please describe and attach available plans.
(STAFF COM 1 1ENTS)
(3) Estimate the amount of fill and dredge material that would be placed in or removed from surface
water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill
material.
N/A
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[fa yj 1!1'IIItAam, III I al►Y 16-1
(4) Will the proposal require surface water withdrawals or diversions? Give general description,
purpose, and approximate quantities if known.
(STAFF COMMENTS
(5) Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan.
(6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the
type of waste and anticipated volume of discharge.
(STAFF COMMENTS)
b. Ground:
(1) Will ground water be withdrawn from a well for drinking water or other purposes? If so, give a
general description of the well, proposed uses and approximate quantities withdrawn from the well
Will water be discharged to ground water? Give general description, purpose, and approximate
quantities if known.
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(STAFF COMMENTS), ... ............
(2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if
any (for example: Domestic sewage; industrial, containing the following chemicals...; agricultural;
etc.). Describe the general size of the system, the number of such systems, the number of houses to be
served (if applicable), or the number of animals or humans the system(s) are expected to serve.
(STAFF C l'M1
C. Water Runoff (including storm water):
(1) Describe the source of runoff (including storm water) and method of collection and disposal, if any
(include quantities, if known). Where will this water flow? Will this water flow into other waters? If
so, describe.
I'E1c arml; aar -ALL tuft" si �r t uvater. Hi will be collected in catch basins a�rucl � c�iat t'l to infiltration
trPnnhec with ()vPrflows cnnnected to the c 1v ctnrm
(STAFF AFF COMMpl� T . ..... _. ...... —
(2) Could waste materials enter ground or surface waters? If so, generally describe.
(STAFF COMMENTS)
(3) Does the proposal alter or otherwise affect drainage patterns in the vicinityof the site? If so,
describe.
(STA FF COMCMS'.
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d. Proposed measures to reduce or control surface, ground, runoff water, and drainage pattern impacts, if
any:
New QvStf-.m will fidly infiltrate water and rednee impact on dnvvnQtrP.nrn 9jirne..-,
(STA "ECO MMEli Ts)
4. Plants
a. Check or circle types of vegetation found on the site:
deciduous tree: alder, maple, aspen, other:
YES evergreen tree: (5 cedar, (me) other: (At some existing landscape areysl
YES shrubs (At some existing landst ape areasi . .... . . ------
YES grass (At some existing landscape areas)
pasture
crop or grain
Orchards, vineyards or other permanent crops.. .........wawa
wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other:
water plants: water lily, eelgrass, milfoil, other:
other types of vegetation: ...............................
(STAFF COMMENTS),,,,,,-,,,,,,– .... . .......................
b. What kind and amount of vegetation will be removed or altered?
Ul"UZO ty ALMIke C—le-ILILLAo—fAll—cxLstinayggL.,.LiCiotisos
qt
I – Pine- I – Cedar- 26 – Fir&.These trees range in apprnximpte height of 70' - 120'
---------- ---
(STAFF COMMENTS)
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C. List threatened or endangered species known to be on or near the site.
None knnwn
(STAFF" f.:C`tNiliME [T )...-.. ..
d. Proposed landscaping, use of native plants, or other materials to preserve or enhance vegetation on the site,
if any:
,2°fir qf tLic.ove:rall sitewill bem N aii itped atthe n leLicn caf the_lsr at c t. The_landsca_,pin6 w It e i sla'Il d to
be c n�( v..�niC ative jantts will utilized withip tto landapp
wm
&%i . Tl�tq-- l Larjwill rnchide, d cii i �rrp , vurgA' n, Vinci str t z� e t iq 1 ll.. y e l..l . y r n 1 b
V landscaUina,�_ ..... _...
(STAF"F"COMMENTS)—... _............. . ._..-.......... .
e. List all noxious weeds and invasive species known to be on or near the site.
Nnne knnwn,
(STAF°F" COMM
5. Animals
a. List any birds and other animals that have been observed on or near the site or are known to be on or near
the site. Examples include:
birds: hawk, heron, eagle, . stn ltird. , other:
mammals: deer, bear, elk, beaver, other:_
fish: bass, salmon, trout, herring, shellfish, other:
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(STAFF COMMENTS)
b. List any threatened or endangered species known to be on or near the site.
(STAFF" COMMENTS)
C. Is the site part of a migration route? If so, explain.
(STAFF COMMENTS)
d. Proposed measures to preserve or enhance wildlife, if any:
(STAFF COM. M
e. List any invasive animal species known to be on or near the site.
None known,
(STAFF COMMENTS)
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6. Energy and Natural Resources
a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed
project's energy needs? Describe whether it will be used for heating, manufacturing, etc.
F,,lectric for building lights and nower. Natural gas for heat and cnma nnnlinnrPc
(STAFF CO6Vll+il'ENT )
b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally
describe.
9w o t'._ tkspra eclmlL�t,� l rl a m_a?ttmit dt the City of Edmond's height restrictions ns art 6s 2 stories. 1 t ITpa -grty...t _thee
wc..5L6iAlaQ 2.!!1�LjftQq11.and the west ofthe si jec�t ropegy is bordered by roads. ]'he pro ertie� tla_the south will
not be affected due to setbacks.
(STAFF COMMENTS)
C. What kinds of energy conservation features are included in the plans of this proposal? List other proposed
measures to reduce or control energy impacts, if any:
High efficiency HVAC systems
Use of LED huhtine fixtures throughout
(STAFF
F
7. Environmental Health
a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and
explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so describe.
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( 'l'AFlU C" 1i+11"M ENTS)_ ........_ ..w ................ ........_ ..... .
(1) Describe any known or possible contamination at the site from present or past uses.
None known; No phase 1 assesment has been coin
ieteci for the nrnnPrty,
(STA FF CO M
(2) Describe existing hazardous chemicals/conditions that might affect project development and design.
This includes undergrand hazardous liquid and gas transmission pipelines located within the project
area and in the vicinity.
Existing natural gas lines to he cut & canned by PSF,
(STAFF COMM ENTS).
(3) Describe any toxic or hazardous chemicals that might be stored, used, or produced during the
project's development or constructions, or at any time during the operating life of the project.
None.
(STAFF COMMENTS)—,,—.,,, ----- � _..�.
(4) Describe special emergency services that might be required.
(STAFF COMM
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(5) Proposed measures to reduce or control environmental health hazards, if any:
(STAFF COMMENTS
b. Noise
(1) What types of noise exist in the area which may affect your project (for example: traffic, equipment,
operation, other)?
Traffic from 212t` St SW and ROth Ave W
(STAFFCOMM
(2) What types and levels of noise would be created by or associated with the project on a short-term or
a long-term basis (for example: traffic, construction, operation, other)? Indicate what hour's noise
would come from the site.
Nonnal construction noises will occur during constroction of the pLojg_q1,_d34Jn, construction hours that art-
annroved by the Citv nfFdmnnd.-,_
. . . . . . ......................
(STA FF CO M M ENTS)._ .....................
(3) Proposed measures to reduce or control noise impacts, if any:
(STAFF COMMENTS)_,,,,,_.,,,,, . . ...... . ..... .
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8. Land and Shoreline Use
a. What is the current use of the site and adjacent properties? Will the proposal affect current land uses on
nearby or adjacent properties? If so, describe.
The current use of thesttac i�mr
two s tl1_a� Cir pct a�' are raLQlice. T1_lJ1rcl, str g tK r _ lllg is kWi essecl afi of
�0's Ave MMS is a shat 1 ..darn ly IiL usp,' he jurro����r�1� ..1�i° �e�°t�es are :s I an -Lily nd apar'tawnt
crwtllalt C" p!nl2oscd pr . i Atili 111L)tc se# i Jps;513Li ate th the surrondi� g is � �°tins tlzetw tl r _ tucrerr:
(STAFF COMMENTS)
b. Has the project site been used as working farmlands or working forest lands? If so, describe. How much
agricultural or forest land of long-term commercial significance will be converted to other uses as a result
of the proposal, if any? If resource lands have not been designated, how many acres in farmland or forest
land tax status will be converted to nonfrom or nonforest use?
(STAFF COM
(1) Will the proposal affect or be affected by surrounding working farm or forest land normal business
operations, such as oversize equipment access, the application of pesticides, tilling, and harvesting? If
so, how:
!�,, �[l17'iI'M'itwl`lr"9
C. Describe any structures on the site.
Two existing commercial office buildings built in the 1950's
esidence built in the 1950's _ ww m w mmmmmmmITITIT
One, single family r�mmITITIT
Assnniatp.d narkino
.......... .. _............................
(STAFF Cttl'w+ME
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d. Will any structures be demolished? If so, what?
Ve.q Al hidiffino-,and nnrkincy
(STAFFCOMMENTS)
e. What is the current zoning classification of the site?
M111ti-fihmi1v — RM -14
. I . .... . ..... -------
I Malail
What is the current comprehensive plan designation of the site?
To i-eserve and revulat areas Or ��V'l 11im -Y
"freatg densities than are available in
nmen
the single-familv residential zones. while Still MaintainiLig.a re-,idential environment
w . --- -- — - 1 0 t
Multi -Family Medium Density
g. If applicable, what is the current shoreline master plan designation of the site?
(STAFFCOMgr ENT
S) . . ...................... . . ........... --
h. Has any part of the site been classified critical area by the city? If so, specify.
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(STAFF C;C'1'M
Approximately how many people would reside or work in the completed project?
14-56 — their will be (14)3 bedroom units
(STAFF COMM ENTS)_..._,
j. Approximately how many people would the completed project displace?
Approximately 10 office em �Is1 aVecs that work in the two exi� office buildings and 1 single far ;iii r�st�le�tc �
(STAFF COM
k. Proposed measures to avoid or reduce displacement impacts, if any:
(STAFF COMM ENTs)
Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if
any:
( TAF'F C:C11 lME1" T) w�
In. Proposed measures to ensure the proposal is compatible with nearby agricultural and forest lands of long-
term commercial significance, if any:
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(STAFF COMMENTS)
9. Housing
a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income
housing.
calx Middle me.nmP hnncina
nstrt�cted and ayaila_ le Etat _.._ ..........................
(1,41 3 hedrnnm iintt� will he cn,„
(STAFF COMMEN
b. Approximately how many units, if any would be eliminated? Indicate whether high, middle, or low-income
housing.
(1) sinsle family residence will be eliminated. Middle income housing
(STAFF CO
C. Proposed measures to reduce or control housing impacts, if any:
(STAFF COMMENTS)
)
10. Aesthetics
a. What is the tallest height of any proposed structure(s), not including antennas; what is the principle
exterior building material(s) proposed?
`balle t hej&1jta1.., ai laM osed structure is 28.5' the principle exkerioi ITbuimldhts ; IT aler?als shall be ll,s.r ie [a
siddine and veneer stone.
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(STAFF COMMENTS)
b. What views in the immediate vicinity would be altered or obstructed?
(STAFF COMMENTS) . . . . ....... . ... ...
C. Proposed measures to reduce or control aesthetic impacts, if any:
A
variation of materials will be used on the structures and also a wide variation of plants will be used fo
(STAFF COMMENTS)
11. Light and Glare
a. What type of light or glare will the proposal produce? What time of day would it mainly occur?
Limited light or glare is anticipated, unitii_yi1t.. gygs Mglerio N,t ltts butIT, will be attractivel lit at niahahne.
(STAFF COM
b. Could light or glare from the finished project be a safety hazard or interfere with views?
No.
(STAFF
C. What existing off-site sources of light or glare may affect your proposal?
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XJ Vr,1ll KW3151
Proposed measures to reduce or control light and glare impacts, if any:
Useofonly down or un -down liehts so as not to affectQ�t prune, tied
12. Recreation
a. What designated and informal recreational opportunities are in the immediate vicinity?
Lynnwood Kw Lii i N Q&_2ggi:ss , l cln�ar��sµmi "c�odw l ihschool fields, College place MiddlemenSchool fields,
Yost Park. Pine Ridee Park.
b. Would the proposed project displace any existing recreation uses? If so, describe.
C. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be
provided by the project or applicant, if any:
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(STAFF CCS±%
13. Historic and Cultural Preservation
a. Are there any buildings, structures, or sites located on or near the site that are over 45 years old listed in, or
eligible for listing in national, state, or local preservation registers located on or near the site? If so,
specifically describe.
(STAFF COMMENTS)-.--,,,,, .............. ...
b. Are there any landmarks, features, or other evidence of Indian or historic use or occupation? This may
include human burials or old cemeteries. Are there any material evidence, artifacts, or areas of cultural
importance on or near the site? Please list any professional studies conducted at the site to identify such
resources.
(STAND COMM 1 �P"IS)._� �................................ �...........................
C. Describe the methods used to assess the potential impacts to cultural and historic resources on or near the
project site. Examples include consultation with tribes and the Department of Archeology and Historic
Preservation, archaeological surveys, historic maps, GIS date, etc.
Checked with the Citv of Edmonds nlannine division on 10/1 /15
(STAN" COMME
d. Proposed measures to avoid, minimize, or compensate for loss, changes to, and disturbance to resources.
Please include plans for the above and any permits that may be required.
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(STAFF COMMENTS)
14. Transportation
a. Identify public streets and highways serving the site or affected geographic area, and describe proposed
access to the existing street system. Show on site plans, if any.
Currenit 212 1h St SW gnd 80"' Ave W serve the tpr erty, WepEq-p r
(STAFF COMMENTS),
b. Is the site or affected geographic area currently served by public transit? If so, generally describe. If not,
what is the approximate distance to the nearest transit stop?
No. the nearest bus Ston is across the street approximately 100 feet. awav
.... . . ....... . . .. ............... ..................
(STAFF COM
C. How many additional parking spaces would the completed project or nonproject proposal have? How
many would the project or proposal eliminate?
The completed ptp)posed ,lectwtitildhave 391?iirk.iiisl)aces gi ag i"sw csWbeing
----CZ5 qf -c -q-p.ArkjL
-AIL-
exterior narkiniz between units). The current site has approximately 24 parking spaces;
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d. Will the proposal require any new or improvements to existing roads, streets, pedestrian, bicycle or state
transportation facilityes not including driveways? If so, generally describe (indicate whether public or
private).
(STAFF C('IM'.
e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air transportation? If
so, generally describe.
f. How many vehicular trips per day would be generated by the completed project? If known, indicate when
peak volumes would occur and what percentage of the volume would be trucks (such as commercial and
anpassenger vehicles). What data or transporation models were used to make these estimates?
Please refer to the attached traffic impact analvsis worksheet. under 25 peak hour tries.
g. Will the proposal interfere with, affect or be affected by the movement of agricultural and forest products
on roads or streets in the area? If so, generally describe.
(STAFF °f)I'1r1MENTS). ..... _._. ... ___.............. ...
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h. Proposed measures to reduce or control transportation impacts, if any:
(STAFF CO
15. Public Services
a. Would the project result in an increased need for public services (for example: fire protection, police
protection, public transit, health care, schools, other)? If so, generally describe.
p Pffart nn nnhhr cPrvirP.e
a rnnnceri nrn�iectwnitici he 14 homes_ unable to auantftl�lw wm_IT,.
b. Proposed measures to reduce or control direct impacts on public services, if any:
(STAFF COM1ti7ENTS). �... ._..._ __. _..�. .�.._. � _ ..........................
16. Utilities
a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone,
sanitary sewer, septic system, other:
_ � itnry ePwar
Flectrici - natural ga _water_ refute service telenhone �::��' ita. � wwwwwwwwq wwwwwwwwwwwwwwwwwww_„ww__ _
Revised on 4/15/14 Brackett's Corner - SEPA Checklistdoc Page 24 of27
b. Describe the utilities that are proposed for the project, the utility providing the service, and the general
construction activities on the site or in the immediate vicinity which might be needed.
)Mater. sanitary sewer. and storm are Lmovided through the City of Edinonds dal ectricity j� ovided through
Snohomish PUD. -natural gas is trovided throe telephone and cable I1ira it9crz lLirqugh Qqmqqs1.iLe
jgjk
service is provided throuiah Republic Services
(STA FFCOMMEETS)
C. SIGNATURE
I declare under penalty of perjury laws that the above answers are true and correct to the best of my knowledge. I understand
that the lead agency is relying on them to make its decision.
S�Ignat, c of Proponent
Reviewed by Sean Conrad, AICP
City of Edmonds Development Services Department
1110s'lig
Date Submitted
t 2— / 1 -7 /1 S -
Revised on 4115114 Brackett's Corner - SEPA Checklist doc Page 25 of2 7
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GTC
Gibson Traffic Consultants
2802 Wetmore Avenue
Suite 220
Everett, WA 98201
425.339.8266
rac ett's Corner
Traffic Impact Analysis
Prepared For: Pride Ventures, LLC
Jurisdiction: City of Edmonds
December 2015
GTC 415-260
Brackett's Corner Traffic Impact Analysis
TABLE OF CONTENTS
1. PROJECT DESCRIPTION............................................................................................. 1
2. TRIP GENERATION_ .................... ......................,....................................................
1
3. TRIP DISTRIBUTION ....................... ___ ................ ....,.................................................,, 3
4. SITE ACCESS ROADWAY/DRIVEWAYS AND SAFETY ..........................<,.....................
6
4.1 Sight Distance Requirements...............................................................................<......... 6
4.2 Channelization Warrants ..................... ....................................................... ......... 6
4.3 Access Separation....... ............... ....._.................... .................. ........,.......... ......... 6
4.4 Access Level of Service Analysis ....................... .................. .......................... __...... ..... 7
4.5 Collision Summary........................................................................... ........»,.................. 8
5. TRAFFIC VOLUMES & LEVEL OF SERVICE .............. ........................................... ....... 9
6. LEVEL OF SERVICE ANALYSIS......................................................................................
15
7. MITIGATION RECOMMENDATIONS.............................................................................
16
8. CONCLUSIONS ..................... ....................................................... ...........................
16
LIST OF FIGURES
Figure1: Site Vicinity Map ...................... ....__ ,„.........,....... ......... ......... .............................. 2
Figure 2: AM Peak -Hour Trip Distribution ................... „............, ......... ......... ........ ___ 4
Figure 3: PM Peak -Hour Trip Distribution.................................................................................... 5
Figure 4: 2015 Existing PM Peak -Hour Intersection Volumes ................................................... 10
Figure 5: 2 -Year Future Baseline PM Peak -Hour Intersection Volumes .............................__., 11
Figure 6: 2 -Year Future with Development PM Peak -Hour Intersection Volumes .................... 12
Figure 7: 5 -Year Baseline PM Peak -Hour Intersection Volumes ................................................ 13
Figure 8: 5 -Year Future with Development PM Peak -Hour Intersection Volumes .................... 14
LIST OF TABLES
Table 1: Trip Generation Summary............................................................................................ 1
Table 2: Level of Service Criteria for Intersections ....... .................. ......... ........ .....,............ 7
Table 3: 5 -Year Collision Rate and Frequency — January 1, 2010 to Available 2015 ................... 8
Table 4: 2017 & 2022 Future Level of Service Summary —PM Peak -Hour ................................ 15
Table 5: Traffic Mitigation Fee Calculation .................. ......... ...... ............... ................. 16
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com i GTC #15-260
Brackett's Corner Traffic Impact Analysis
ATTACHMENTS
TripGeneration Calculations ..................... ......... ............................ ................ .......... ........... - A
CountData .................................................................................. ......,............. ................. B
2017/2018 Turning Movement Calculations .................. ......... ....................................... C
2022/2023 Turning Movement Calculations .................. ......... ....... ................,. D
Existing PM Peak -Hour Level of Service Analysis ......... .._........................ ..........__......................B
2017/2018 Baseline PM Peak -Hour Level of Service Analysis...................................................... F
2017/2018 Future With Development PM Peak -Hour Level of Service Analysis ........................ G
2022/2023 Baseline PM Peak -Hour Level of Service Analysis .................................................... H
2022/2023 Future With Development PM Peak -Hour Level of Service Analysis .......................... I
WSDOTCollision Data ............................................... .„.....,.............................. . _ ................ .e.... J
Channelization Warrants.......................................................................................... ......,.__ ..... K
SitePlan ......................................................................................... ......... ................................. . L
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com ii GTC #15-260
Brackett's Corner Traffic Impact Analysis
1. PROJECT DESCRIPTION
The Brackett's Corner residential development is located along the west side of 80th Avenue W,
south of 212th Street SW. A site vicinity map that shows the study intersection is included in
Figure 1. The development will consist of 14 single family dwelling units. The development is
proposed to be constructed in one phase with build -out and occupancy scheduled for the year
2016. The site currently has a total of 5,346 square feet (sf) of general office and one single
family dwelling which the development will receive credit for.
The development is proposing to have two access points to 801h Avenue W. There are currently
two curb -cuts on 212th Street SW which will be removed with the redevelopment and there are
two on 80th Avenue W which will be relocated with the redevelopment.
2. TRIP GENERATION
The daily, AM peak -hour and PM peak -hour trips anticipated to be generated by the proposed
development were estimated by trip generation data contained in the ITE Trip Generation
Manual, 9,"' Edition (2012). The ITE land use code 210, Single family Dwelling and LUC 710,
General Office, were used for the proposed development.
The proposed development will generate fewer trips during the AM peak -hour than the PM
peak -hour; this confirms that the PM peak -hour is the critical commuter peak for the level of
service and channelization analysis. Brackett's Corner will be receiving credit for the removal
of the single-family house already on site along with 5,346 sf. The development will generate
64.79 ADT with 1.41 AM peak -hour trips (4.90 inbound/6.31 outbound) and 5.03 PM peak -
hour trips (6.84 inbound/ -1.81 outbound). A Trip Generation summary has been included in
Table 1.
Table 1: Trip Generation Summary
The trip generation calculations are included in the attachments.
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 1 GTC #15-260
Average
AM Peak
-Hour Trips
PM Peak
-Hour Trips
Land Use
Units
Daily
Tris
Inbound
Outbound Total
Inbound
Outbound Total
Single Family
14 Units
133.28
2.63
7.87 10.50
8.82
5.18 14
Dwelfin
Single Family
Dwelling
-1 Unit
-9.52
-0.19
-0.56 -0.75
-0.63
-0.37 -1.00
(Removed)
General Office
5.346 ksf
-58.97
-7.34
-1.00 -8.34
-1.35
-6.62 -7.97
(Removed)
Total
-
64.79
-4.90
6.31 1.41
6.84
-1.81 5.03
The trip generation calculations are included in the attachments.
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 1 GTC #15-260
GIBSON TRAFFIC CONSULTANTS
BRACKETT'S CORNER LEGEND
13 NEW SINGLE FAMILY DEVELOPMENT SITE
RESIDENCES
CITY OF EDMONDS STUDY INTERSECTION
TRAFFIC IMPACT STUDY
GTC #15-260
FIGURE 1
SITE VICINITY MAP
Brackett's Corner Traffic l rnpact Analysis
3. TRIP DISTRIBUTION
The distribution of trips generated by the Brackett's Corner development is based on the existing
turning rnoven encs at the study intersections located around the development. Although there
will be two accesses on 80th, just the northern access was loaded with trips to simulate a. worst
case scenario, The trip distribution for the development assumes that 40% of the site traffic will
travel to and frons the north on 801h Avenue W and 60% to and from the south on 80th Avenue W
The forty percent would spilt with twenty percent heading west on 212th Street SW and twenty
percent heading east on 212th Street SW. The distributions of AM and PM peak -hour trips
generated by the development are shown in Figure 2 and 3 respectively.
..Gibson _..... ,.W,,, ..��.__.._..........._ . ,�. _...�...�_........_...�.� .��..................._ ��.�_._.......
Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 3 GTC #15-260
212TH STREET SW
SITE
10
(0
13
GIBSON TRAFFIC CONSULTANTS
2
BRACKETrS CORNER
LEGEND
13 NEW SINGLE FAMILY
AVVDT
AM PEAK
E
RESIDNCES..........
CITY OF EDMONDS
13
4,.�-�.
2
I C4 ('00
_2
NEW DAILY TRAFFIC
NEWAM PEAK HOUR TRIPS
TRIP DISTRIBUTION %
TRAFFIC IMPACT STUDY
GTC #15-260
FIGURE 2
AM PEAK -HOUR
TRIP DISTRIBUTION
Brackett's Corner Traffic Impact. Analysis
4. SITE ACCESS ROADWAY/DRIVEWAYS AND SAFETY
The developinent is proposing to have two access points to 80th Avenue W, one between the two
northern accesses on the opposite side of 80th Avenue W for private condos and one directly
across from the third access point traveling south for the private condos. The northern access will
have 61 feet of corner to corner clearance from 212st Street SW. There will be about 90 feet
between the two site accesses. The southern access will have about 161 feet of corner to corner
clearance from 213th Street SW. There are currently two curb -cuts along 212th Avenue W which
will be removed with the development. The frontage of the development currently has curb,
gutter, and sidewalk along the north side and a rolled curb and sidewalk along the east side.
4.1 Sight Distance Requirements
Sight distance analysis was performed at the proposed site access point according to current
AASHTO standards. The entering sight distance was measured from 10 feet back of the
pavement from an eye height of 3.5 feet to and eye height of 3.5 feet. The stopping sight
distance was measured from an eye height of 3.5 feet to an object height of 2 feet.
On 80th Street W the sight distance is based on a posted speed of 25 mph. The required entering
sight distance is 280 feet and the required stopping sight distance is 155 feet per AASHTO
requirements. There is over 300 feet of stopping and entering sight distance to the north and
south of the proposed accesses. The sight distance is met for both accesses.
4.2 Channelization Warrants
The WSDOT Design Manual Exhibit 1310-I5a, Left -Turn Lane Guidelines show that left -turn
channelization is not required at the proposed access as the intersection Design Hour Volume
does not meet the required minimum number of vehicles. Also, the WSDOT Design Manual
Exhibit 1310-19, Right -Turn Lane Guidelines show that right -turn channelization, either a pocket
or lane, is not required until there are 20 right -turning vehicles. The access is not anticipated to
have 20 right -turning vehicles during the PM peak -hour and therefore the accesses to the
Brackett's Corner would not warrant right -turn channelization.
4.3 Access Separation
The development is proposing to have two access points to 80th Avenue W just south of the
existing access from private condos located on the east side of 80th Avenue W. The northern
access will have about 61 feet of corner to corner clearance from 212th Street SW. There is
approximately 90 feet of clearance between the two access points. The southern access will have
161 feet of corner to corner clearance from 213th Street SW located to the south of the
development. The proposed access improves the existing access where vehicles are backing out
on to 801h Avenue W.
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 6 GTC #15-260
Brackett's Corner Traffic Impact Analysis
4.4 Access Level of Service Analysis
The analysis of the study intersections and site access has been performed using the Synchro 9. 0,
Build 903 software. Traffic congestion is generally measured in terms of level of service (LOS).
In accordance with the 2010 Highway Capacity Manual (HCM, road facilities and intersections
are rated between LOS A and LOS F, with LOS A being free flow and LOS F being forced now
or over -capacity conditions. The level of service at signalized and all -way stop -controlled
intersections is measured in terms of average delay per vehicle in seconds. The level of service
for two-way stop -controlled intersections is determined by the worst case of all the calculated
lane groups at the intersection. A summary of the level of service criteria has been included in
Table 2.
Table 2: Level of Service Criteria for Intersections
t Source: Highway Capacity Manual 2010.
LOS A: Free-flow traffic conditions, with minimal delay to stopped vehicles (no vehicle is delayed longer
than one cycle at signalized intersection).
LOS B: Generally stable traffic flow conditions.
LOS C: Occasional back-ups may develop, but delay to vehicles is short term and still tolerable.
LOS D: During short periods of the peak hour, delays to approaching vehicles may be substantial but are
tolerable during times of less demand (i.e. vehicles delayed one cycle or less at signal).
LOS E: Intersections operate at or near capacity, with long queues developing on all approaches and long
delays.
LOS F: Jammed conditions on all approaches with excessively long delays and vehicles unable to move at
times.
2 When demand volume exceeds the capacity of the lane, extreme delays will be encountered with queuing which
may cause severe congestion affecting other traffic movements in the intersection.
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 7 GTC #15-260
Intersection Control Delay
Level of
Expected(Seconds
ei• Vehicle)
Service
Delay
Unsignalized Signalized
Intersections Intersections
A
Little/No Delay
<10 <1.0
B
Short Delays
>10 and <15 >10 and <20
C
Average Delays
>15 and <25 >20 and <35
D
Long Delays
>25 and <35 >35 and <55
E
Very Long Delays
>35 and <50 >55 and <80
F
Extreme Delays2
>50 >80
t Source: Highway Capacity Manual 2010.
LOS A: Free-flow traffic conditions, with minimal delay to stopped vehicles (no vehicle is delayed longer
than one cycle at signalized intersection).
LOS B: Generally stable traffic flow conditions.
LOS C: Occasional back-ups may develop, but delay to vehicles is short term and still tolerable.
LOS D: During short periods of the peak hour, delays to approaching vehicles may be substantial but are
tolerable during times of less demand (i.e. vehicles delayed one cycle or less at signal).
LOS E: Intersections operate at or near capacity, with long queues developing on all approaches and long
delays.
LOS F: Jammed conditions on all approaches with excessively long delays and vehicles unable to move at
times.
2 When demand volume exceeds the capacity of the lane, extreme delays will be encountered with queuing which
may cause severe congestion affecting other traffic movements in the intersection.
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 7 GTC #15-260
Brackett's Corner Traffic Impact Analysis
Per the November 2009 Comprehensive Transportation Plan; the acceptable level of service for
City of Edmonds intersections is LOS D or better for arterials and LOS C or better for collectors.
The level of service analysis shows that the access to 80th Avenue W will operate at LOS A with
8.8 seconds of delay even with all of the development traffic loaded on the single access.
4.5 Collision Summary
The latest 5 -year collision history from January 1, 2010 through Available 2015 was obtained
from WSDOT. There were a total of 8 collisions within 100 feet of the intersection of 212th
Street SW and 80th Avenue W in the 5 -year reporting period within the study area. The data is
summarized in Table 3 below.
Table 3: 5 -Year Collision Rate and Frequency — January 1, 2010 to Available 2015
Collision "1" r
- - Collision
Location Rear�Entert Opposite 5 -Year ADT3 Rate
Direction Others !Total Frequency
1. 212°"" Street SW 4 2 0 2 8 1.6 11,500 0.38
@ 801h Avenue W
The WSDOT 2008 Washi,n ,,,Ion State Collision Data k5"za nniai), the most recent one available
from WSDOT, shows that the collision rate for an Collectors, w rich are roadways similar to 80th
Avenue W, is 1.62 collisions per million vehicle miles of travel. The collision rate at the
primary study intersections should therefore be considered acceptable since the collision rate is
below the state average.
Only 1 of the 8 collisions identified 80th Avenue W as the primary roadway where the collision
occurred. The collision occurred outside the shoulder of the primary roadway and the vehicle
struck an object. None of the 8 collisions involved a fatality as the most severe injury type.
3 The Average Daily Traffic (ADT) assumes a design K -value of 10.
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 8 GTC #15-260
Brackett's Corner Traffic Impact Analysis
5. TRAFFIC VOLUMES & LEVEL OF SERVICE
Existing PM peak -hour counts were collected at the off-site study intersection:
212th Street SW at 80th Avenue W
These counts were performed by Traffic Data Gathering (TDG) on December 1, 2015. The
existing turning movements are shown in Figure 4. Due to how close the change of year was, this
report will state the future year as 2017/2018. A full two years of growth was still added from
December of 2015 to December of 2017. The 2017/2018 baseline traffic volumes were
determined using a 2% annually compounding growth rate to account for other developments in
the site vicinity. The 2017/2018 baseline turning movements are shown in Figure 5. The
2017/2018 future with development traffic volumes were calculated by adding the
development's trips to the 2017/2018 baseline traffic volumes after zeroing out any trips coming
to or from the site. The 2017/2018 future with development turning movements are shown in
Figure 6. The 2022/2023 baseline turning movements are shown in Figure 7. The 2022/2023
future with development traffic volumes were calculated by adding the development's trips to
the 2022/2023 baseline traffic volumes after zeroing out any trips coming to or from the site.
The 2022/2023 future with development turning movements are shown in Figure 8. The traffic
volume calculations are included in the attachments.
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 9 GTC #15-260
GIBSON TRAFFIC CONSULTANTS
BRACKETT'S CORNER
13 NEW SINGLE FAMILY
RESIDENCES
CITY OF EDMONDS
LEGEND
XXX PM PEAK HOUR
TURNING MOVEMENT VOLUMES
TRAFFIC IMPACT STUDY
GTC #15-260
FIGURE 4
2015 EXISTING
PM PEAK -HOUR
INTERSECTION VOLUMES
GIBSON TRAFFIC CONSULTANTS
BRACKETT'S CORNER
13 NEW SINGLE FAMILY
RESIDENCES
CITY OF EDMONDS
LEGEND
XXX PM PEAK HOUR
TURNING MOVEMENT VOLUMES
TRAFFIC IMPACT STUDY
GTC #15-260
FIGURE 5
2 YEAR FUTURE
BASELINE PM PEAK -HOUR
INTERSECTION VOLUMES
GIBSON TRAFFIC CONSULTANTS
BRACKETT'S CORNER
13 NEW SINGLE FAMILY
RESIDENCES
CITY OF EDMONDS
LEGEND
XXX - PM PEAK HOUR
TURNING MOVEMENT VOLUMES
TRAFFIC IMPACT STUDY
GTC #16-260
FIGURE 6
2 YEAR FUTURE WITH
DEVELOPMENT PM PEAK -HOUR
INTERSECTION VOLUMES
GIBSON TRAFFIC CONSULTANTS
BRACKET'S CORNER
13 NEW SINGLE FAMILY
RESIDENCES
CITY OF EDMONDS
LEGEND
XXX PM PEAK HOUR
TURNING MOVEMENT VOLUMES
TRAFFIC IMPACT STUDY
GTC #15-260
FIGURE 7
202212023 BASELINE
PM PEAK -HOUR
INTERSECTION VOLUMES
GIBSON TRAFFIC CONSULTANTS
BRACKETT'S CORNER
13 NEW SINGLE FAMILY
RESIDENCES
CITY OF EDMONDS
LEGEND
XXX - PM PEAK HOUR
TURNING MOVEMENT VOLUMES
TRAFFIC IMPACT STUDY
GTC #15-260
FIGURE 8
202212023 FUTURE WITH
DEVELOPMENT PM PEAK -HOUR
INTERSECTION VOLUMES
Brackett's Corner Traffic Impact Analysis
6. LEVEL OF SERVICE ANALYSIS
The future with development level of service analysis has been performed for the additional 5
new PM peak -hour trips that would impact the study intersections. The development's trips
were added to the baseline turning movements to determine the future with development turning
movements. Counts were collected by GTC staff at the two driveways opposite of the
developments north driveway to check for any turning conflicts. The driveway northern
driveway of the two had inbound traffic, but no outbound while the southern of the two had no
inbound or outbound traffic during the PM peak -hour. Due to this, both driveways will operate at
a LOS A with 0 seconds of delay. The intersection of 212th Street SW at Wh Ave W will remain
at LOS D but the delay will increase to 27.5 sec with the development with two years of growth
and 28.2 sec with the development in seven years. For this intersection, for the seven years of
growth, a beak lour Factor of 0.92 was used to account for the traffic growth at this intersection
this far in the future. The intersection of the existing/ftiture driveway and 80"' Avenue W will
remain at LOS A with the delay increasing to 8.8 sec in 2017/2018 and 2022/2023. The
2017/2018 & 2022/2023 Future with development level of service has been shown in Table 4.
All of the study intersections will remain at acceptable LOS per city standards with the
development and background traffic forecasts for the 2022/2023 concurrency forecast year.
Table 4: 2017 & 2022 Future Level of Service Summary —PM Peak -Hour
2017/2018 Future Conditions 2022/2023 Future Conditions
Existing
Intersections Conditions without With without with
Development Develonment Development Develo "Icni
LOS Delay LOS Delay LOS Delay LOS Delay LOS Delay
212''°' Street SW at
1. 212 'StreAvenee W D 25.4 sec D 27.3 sec D 27.5 sec D [2&1 sec A 28.2 sec
m_....._.�.
2 Ext sting/Future Dwy at A 8.7 sec A 8.7 sec A 8.8 sec A 8.7 sec A 8.8 sec
80 Avenue W
The projected northbound queuing at the intersection of 212th Street SW at 80th Avenue W in the
Future With Development conditions extends for I vehicle. This will not impact the proposed
access location and will allow for all movements out of the proposed northern access.
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 15 GTC #15-260
Brackett's Corner Traffic l nnpact Analysis
7. MITIGATION RECOMMENDATIONS
The applicable % New Trips and Trip Length Factors are from Table 4 of the City of Edmonds
Traffic Impact Analysis Guidelines.
The traffic mitigation fee calculation for the Brackett's Corner development is summarized in
Table 5. The total traffic mitigation fee of $6,231.64 is required for the Brackett's Corner
development.
Table 5: Traffic Mitigation Fee Calculation
Total
8. CONCLUSIONS
$6,231.64
The development will consist of 14 new single family residences. The development is proposing
to have two access points to 80th Avenue W which will have adequate sight distance and will
operate at an acceptable level of service. The development is anticipated to generate 64.79 new
average daily trips with 5.03 PM peak -hour trips (6.84 inbound/ -1.81 outbound). The
development will have traffic mitigation fees of $6,231.64; based on the methodology outlined in
Table 4 of the City of Edmonds Traffic Impact Analysis Guidelines. The development will not
have a significant impact on the adjacent intersection. Also, based on the low volume utilizing
the accesses, the existing low collision history, and low conflicting volumes from the accesses on
the east side of 80`" Avenue W the accesses would operate safely in the proposed site layout
configuration.
.....
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 16 GTC #15-260
Number
Trip
%
Trip
Net New Trips
Impact Fee
Land Use
of Units
Rate
New
Length
per Unit of
per Unit
Total
Trips
T
Factor
Measure
Single
$1,196.33
Family
14 Units
1.01
100%
1.13
1.14 per dwelling
per dwelling
$16,748.62
Residence
unit
Single
$840.72 per
Family
-1 Unit
1.01
o
100%
1.09
1.10 per 1,000 SF
dwelling
-$840.72
Residence
unit
General
Office
-5,346 SF
1.49
100%
1.59
2.37 per 1,000 SF
$1.81 per SF
-$9,676.26
Total
8. CONCLUSIONS
$6,231.64
The development will consist of 14 new single family residences. The development is proposing
to have two access points to 80th Avenue W which will have adequate sight distance and will
operate at an acceptable level of service. The development is anticipated to generate 64.79 new
average daily trips with 5.03 PM peak -hour trips (6.84 inbound/ -1.81 outbound). The
development will have traffic mitigation fees of $6,231.64; based on the methodology outlined in
Table 4 of the City of Edmonds Traffic Impact Analysis Guidelines. The development will not
have a significant impact on the adjacent intersection. Also, based on the low volume utilizing
the accesses, the existing low collision history, and low conflicting volumes from the accesses on
the east side of 80`" Avenue W the accesses would operate safely in the proposed site layout
configuration.
.....
Gibson Traffic Consultants, Inc. December 2015
info@gibsontraffic.com 16 GTC #15-260
Trip Generation Calculations
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Brackett's Corner
GTC #15-260
AM Peak -Hour
A-4
New
New AM Peak Hour Trips
%
ADT
In
Out
Total
100%
65
-5
6
1.41
1%1
0.65
-0.05
0.061
0.01
2%
1.30
-0.10
0.1
0.03
3%1
1.94
-0.15
0.19
0.04
4%
2.59
-0.20
0.25
0.06
5%1
3.241
-0.25
0.32
0.07
6%
3.89
-0.29
0.38
0.08
7%
4.54
-0.34
0.44
0.10
8%
5.18
-0.39
0.50
0.11
9°
5.83
-0.44
0.57
0.13
10%
6.48
-0.49
0.63
0.141
11 %
7.13
-0.54
0.69
0.16
12%
7.77
-0.59
6.76
0.17
13%
8.42
-0.64 !
0.82
0.18
14%1
9.07
-0.69
0.88
0.20
15%
9.72 ,
-0.74
0.95
0.21
16%
10.37
-0.781
1.01
0.23
17%
11.011
-0.83
1.07
0.24
18%
11.66
-0.88
1.14
0.25'
19%
12.31
-0.93
1.20
0.27
200/6
12.96
-0.98
1.26
0.28
21%
13.61
-1.03
1.33
0.30
22%
14.25
-1.08
1.39
0.31
23%
14.90
-1.13
1.45
0.32
24%
15.55
-1.18
1.51
0.34
25%
16.20
-1.23
1.58
0.35
260/.
16.85
-1.27
1.64
0.37
27%
17.49
1.32
1.70
0.38
28%
18.14
-1.37
1.77
0.38
29%
18.7911-1.42
-3.87
1.83
0.41
300/0
19.44
-1.47
1.89
0.42
31'%
20.08
-1.52
1.96
0.44
32%
20.73
-1.57
2.02
0.45
33%
21.38
-1.62
2.08
0.47
34%
22.03
-1.671
2.15
0.48
350/6
22.68
-1.72
2.21
0.49
36%
23.32
-1.76
2.27'
0.51
37%
23.97
-1.81
2.33,
0.52
38%
24.62
1.86
2.40
0.54
39%
25.27 j
-1.91
2.46
0.55
40%
25.92f-3.1961
-0.41
2.52
0.56
41%
26.56 ,
-0.46
2.5
0.58
42%
27.21
-4.51
2.65
0.59
43%
27.861
-4.56
2.71
0.61
44°/a
28.51
-4.61
2.78
0.62
45%
29.161
-0.66
2.84
0.646%
96%
29.805
-4.70
2.9
0.65
7%
30.450
-4.75
2.97
0.631.105
98%
63.49
-4.80
3.0
0.68
99%1
31.750
-4.85
3.0
0.69
100%1
32.405
-4.90'
3.16
0.71
A-4
New
New AM Peak Hour Trips
ADT
In
Out
Total
100%
65
-5
6
1
51%
33.04
-2.50
3.22
0.72
52%
33.69
-2.55
3.28
0.73
53%
34.34
-2.60
3.34
0.75
54%a
34.99
-2.65
3.41
0.76
55%
35.63
-2.70
3.47
0.78
56%
36.28
-2.74
3.53
0.79
57%
36.93
-2.791
3.60
0.80
58%
37.58
-2.841
3.66'
0.82
59%
38.23
-2.89
3.721
0.83
60%
38.87
-2.94
3.79
0.85
61%
39.52
-2.99
3.85
0.86
62%
40.17
-3.04
3.91
0.87
63%
40.82
-3.09
3.98
0.89
64%
41.47
-3.14
4.04
0.90
65%
42.11
-3.19
4.10
0.92
66%
42.76
-3.23
4.16
0.93
67%
43.41
-3.28
4.23
0.94
68%
44.06
-3.33
4.29
0.96
69%
44.71
-3.38
4.35
0.97
70%
45.35
-3.43
4.42
0.99
71%
46.00
-3.48
4.48
1.00
72%
46.65
-3.53
4.54
1.02
73%
47.30
-3.58
4.61
1.03
74%
47.94
-3.63
4.67
1.04
75%
48.59
-3.68
4.73
1.06
76%
49.24
-3.72
4.80
1.071
77%
49.89
-3.77
4.861
1.09
78%
50.54
-3.82
4.92
1.10
79%
51.18
-3.87
4.98
1.11
80%
51.83
-3.92
5.05
1.13.
81%
52.48
-3.97
5.11
1.14
82%
53.13
-4.02
5.17
1.16
83°/u
53.78
-4.07
5.24
1.17
84%,'
54.42
x.12
5.30
1.18
85%1
55.07
-4.17
5.36
1.20
86%
55.72
-4.21
5.43
1.21
87%
56.37
-4.26
5.49
1.23
88%
57.02
-4.31
5.55
1.24
89%
57.66
-4.36
5.62
1.25
90%
58.31
-0.41
5.68
1.27
91%
58.96
-0.46
5.74
1.28
92%
59.61
-4.51
5.81
1.30
93%
60.25
-4.56
5.87
1.31
94%
60.90
-4.61
5.93
1.33
95%
61.55
-0.66
5.99
1.34
96%
62.20
-4.70
6.06
1.35
97%
62.85
-4.75
6.12
1.37
98%
63.49
-4.80
6.18
1.38
99%1
64.14'
-4.85
6.25"
1.40
100%1
64.7?1___
-4.90'
6.31
1.41
A-4
Brackett's Corner
GTC #15-260
PM Peak -Hour
%°
New
New PM Peak Hour Ups
%
ADT
In
Out
Total
100.1
65
7
-2
5.03
1%
0.65
0.07
-0.02
0.05
2%
1.30
0.14
-0.04
0.10
3%
1.94
0.21
-0.06
0.15
4%
2.59
0.27
-0.07
0.20
5%
3.24
0.34
-0.09
0.25
6%
3.89
0.41
-0.11
0.30
7%
4.541
0.48
-0.13
0.35
8%
5.18
0.55
-0.14
0.40
9%
5.83
0.62
-0.16
0.45
°
10 r'a
6.48
0.68
-0.18 ',
0.50
11%
7.13
0.75
-0.201
0.55
12%
7.77
0.82
-0.22
0.60
13%
8.42
0.89
-0.24
0.65
14%
9.07
0.96
-0.25
0.70
15%
9.72
1.03
-0.27
0.75
16%
10.37
1.09
-0.29
0.80
17%
11.01
1.16
-0.31
0.86 1
18%
11.661
1.23
-0.33
0.91
19%
12.31
1.30
-0.34
0.96
20%
12.96
1.37
-0.38
1.01
21%
13.61
1.44
-0.38
1.06
22°/a
14.25
1.50
-0.40',
1.11
23%
14.90
1.57
-0.42
1.16
24%
15.55
1.64
-0.43,
1.21
25°/a
16.20
1.71
-0.45
1.26
26°/a
16.85
1.78
-0.47
1.31
27%
17.49
1.85
-0.49
1.36
28%
18.14
1.92
-0.51
1.41
29%
18.79
1.98
-0.52
1.48
30°/a
19.44
2.05
-0. 1
1.51
31%
20.08
2.12
-0.5
1.56
32%
20.73
2.19
-0.5
1.61
33%
21.38
2.26
-0.6
1.66
34%
22.03
2.33
-0.62
1.71
35°Ca
22.68
2.39
-0.63
1.76
36%
23.32'
2.46
-0.65;
1.81
37°/a
23.97
2.53
-0.67
1.86
38%
24.62'
2.60
-0.69
1.91
39%
25.27
2.67
-0.71
1.96
40%
25.92
2.74
-0.72
2.01
41%
26.56 „�
.. 2.80
-0.74
2.06
42%
27.21
2.87
-0.76
2.11
43%
27.86
2.94
-0.78
2.16'
44%
28.51
3.01
-0.80
2.21
45%
29.16
3.08
-0.81
2.26
460/a
29.80
3.15
-0.83
2.31
47%
30.451
3.21
-0.85
2.36
48°/a
31.101
3.28
-0.87
2.41
49°/a
31.751
3.35
-0.89
2.46
500
32.40
3.42
-0.91
2.52
A-5
New
New PM Peak Hour Trips
%
ADT
In I
Out
Total
100%
65
7
51%
33.04
3.49
-0.92
2.57
52%
33.69
3.561
-0.94
2.62
53%
34.34
3.63
-0.96
2.67
54%
34.99
3.69
-0.98
2.72
55%
35.63
3.76
-1.00
2.77
56%
36.28
3.83
-1.01
2.82
57%
36.93
3.90
-1.03
2.87
58%
37.58
3.97
-1.05
2.92
59%
38.23
4.04
-1.07
2.97
60%
38.87
4.10
-1.09
3.02
61%.
39.52 .-.....
..,.
4.17
-1.10
3.07
62°/a
40.17
4.24
-1.12
3.12
630/.
40.82
4.31
-1.14
3.17
64%
41.47
4.38
-1.16
3.22
65%
42.11
4.45
-1.18''
3.27
66%
42.76
4.51
-1.19''',
3.32
67%
43.41
4.58
-1.211 I'
3.37
68%
44.06
4.65
-1.23
3.42
69%
44.71
4.72'
-1.25
3.47
70%
45.35
4.79
-1.27
3.52
71%
46.00
4.86
-1.29
3.57
72%
46.65
4.92
-1.30
3.62
73%
47.30
4.99
-1.32.
3.67
74%
47.94
5.06
-1.34
3.72
75%
48.59 -
5.13
-1.36
3.77
76%
49.24
5.20
-1.38
3.82
77%
49.89
5.27
-1.39
3.87
78%
50.54
5.34
-1.41
3.92
79%1
51.18
5.40
-1.43
3.97
80%
51.83
5.47
-1.45
4.02
81%
52.48
5.54
-1.47
4.07
82%
53.13
5.61
-1.48
4.12
83%
53.78
5.68
-1.50
4.17
84%
54.42
5.75
-1.52,
4.23
85°/Q
55.07
5.81
-1.54
4.28
86%
55.72
5.88
-1.56
4.33
56.37
5.95
-1.57
4.38
57.02
6.02
-1.5
4.43
F
57.66
6.09
-1.61
4.48
58.31
6.16
-1.63
4.53
a
58.961
6.22
-1.65
4.58
92%
59.61 i
6.29
-1.67'
4.63
93%
60.25
6.36
-1.68
4.68
94%
60.90
6.43
-1.70
4.73
950
61.55
6.50'
-1.72
4.78
96%
62.20
6.57
-1.7 i'
4.83
97%
62.85
6.63
-1.76
4.88
98%
63.49
6.70
-1.77mi,
4.93
99%
64.14
6.77
-1.7
4.98
100%
64.79
6.84
-1.811
5.03
A-5
PC
TRAFFIC DATAGA77ERNG
TURNING MOVEMENTS DIAGRAM
4:00 PM - 6:00 PM PEAK HOUR: 4:30 PM TO 5:30 PM
............ds = 2_
c
N
Q 0 0
L
i
ao 12 4 7
546...
i1
aU -Tum r" 0 18
498 461
Bicycles 0 19
INTERSECTION 1 2
a�
¢>
PEAK HOUR VOLUME �
11 0
IN 1,150 °D
OUT 1,150
13 L_ 8 I 47
0 0
42 68
E
............................Peds = 3 F
212th Street SW @ 80th Avenue W
Edmonds, WA
COUNTED BY: JH
REDUCED BY: CN
REDUCTION DATE: Wed. 12/2/15
21 0 Bicycles
521 561
19 0U -Tum u
v
N
a
515
SB
HV
4.3%
PHF
L 0.72
NB
1.6%
0.68
WB
1.4%
0.82
EB
2.4%
0.92
INTRS. 1.9%
0.91
PHF = Peak Hour Factor
HV = Heavy Vehicle
DATE OF COUNT: Tue. 12/1/15
TIME OF COUNT: 4:00 PM - 6:00 PM
WEATHER: Overcast
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B-3
2017/2018 Turning Movement
Calculations
c
1 128th St SE @ 3rd Ave SE
Existing 23 70 47 I
Average Weekday 12 1 4 W W 7
PM Peak Hour 0 b
80th Avenue W R 21
Year. 1211115 546 a 521 561
a 19 T
Data Source: TDG 1.044 212th Street SW 1,150 212th Street SW 1.076 North
18
498 461p 515
I
ti 801h Avenue W
13
42 '...110 61 8 1
Future without Project 23 72 49
Average Weekday 124 7
PM Peak Hour "n
80th Avenue W R 22
Year: 2017 568 a 542 584
Growth Rate = 2,0% 20 T
Years of Growth = 2 1.087 212th Street SW 1,197 212th Street SW 1.120 North
Total Growth = 1.0404 19 a 1
519 480 b 536
20 c 80th Avenue W
1 el 8 49
78
a o
Avera Weekday 0
Total Project Tris 0
Average y 0 0 0
PM Peak Hour .' 0 b
80th Avenue W a 0
p a 0 L2
2 T
1 212th Street SW 212th Street SW 1 North
0 I
1 0 a 1
1 b 80th Avenue W
(1 0 m 1
Future with Project 23 72 49�
Average Weekday 12 4 7
PM Peak Hour ,2 0
80th Avenue W a 22
568 a 542 586
p 22 T
1 088 212th Street SW f 1„199 212th Street SW 1,121 North
19 a I
520 480 b 535
21 0 80th Avenue W
a f
14 8 48
V 47 117 70„
Page 1 of 3
C-1
2 Existing Driveway
Synchro ID: 2
Existing I 43 112 69
Average Weekday 1 �J 42 __ 0
PM Peak Hour ra 0
80th Avenue W 0
Year: 12/2/15 2 0 0
rx 0 T
Data Souroe: GTC 7 Existing Dwy 117 — 0 North
1 � I
5 0 0
4 80th Avenue W
a tt rr
68 0
46._. .....
1
�_,.,.,� 115 69
e vAthout
45
FuAverage Peak Weekday a 1 i" ur 61 44 T 0117 72
a J 80th Avenue W R 0
Year: 2017 2 0 0
Growth Rate= 2,0% 0 T
Years of Growth = 2 7 Existing Dwy 1'2?- 0 North
Total Growth = 1.0404 % I
0
E5N
cI 80th Avenue W
48_120 72
Total Project Trips 3 4 1 M M A
Average Weekday 3 0 0
PM Peak Hour ✓ 0 b
80th Avenue W 0
7 0 0 0
✓x 0 T
7Access Driveway 7 0 North
� o I
0 0 a 0
1 b 80th Avenue W
a m ra
40 I0
p"
Future with Project 48 121 73
Average Weekday 4 44 0
PM Peak Hour 0 b
80th Avenue W�> 0
9 o o
1.
12 0 u
14 Access Driveway 129 — 0 North
3 S.t 80th Avenue W
6 11 !a
5 71 0
3 76
Page 2 of 3
C-2
3 Opp side N Dwy
SynchroID: 3
Existing .".... 66 t �1
46 114
Average Weekday 0 42 4
PM Peak Hour r 4 1�1
80th Avenue W 0
Year: 12/2/15 0 t: 0 0
r o T
Data Source: GTC 0 116 North Opposite Driveway 6 North
o q
0 0 r.y 6
0 80th Avenue W
R fi U
0 68
42 112 70 I
Future without Project 48 119 71
Average Weekday 0 44 4
PM Peak Hour 6 4r
80th Avenue W R0
Year: 2017 0 G.I 0 0
Growth Rate = 20% r✓ 0 T
Years of Growth = 2 0 121 North Opposite Driveway 6 North
Total Growth = 1,0404 0 I
0 0 6
0 'L. sy 80th Avenue W
0 7EEI:]
17 1 173
f
�
Total Project Trips 0
o 0
Average Weekday 0 0 0
PM Peak Hour :r. (k b
80th Avenue W R 0
0 a 0 0
r o T
0 North Opposite Driveway 0 North
o
0 0 , o
0 80th Avenue W
R k
0 0 0.
I ��0���0 0
Future withat I 48 119 71
Average Weekday 0 44 4
PM Peak Hour 4 b
80th Avenue W 0
0 G= 0 0
r o T
0 121 North Opposite Driveway 6 North
E0 0 <<� I
6
o
W0 80th Avenue W
R Tri
0
44 117 73
Page 3 of 3
C-3
2022/2023 Turning Movement
Calculations
u
1 128th St SE @ 3rd Ave SE
SynchroID: 1
Existing 23 70 47
Average Weekday 12 4
PM Peak Hour ✓r 1.1+
80th Avenue W `'�t521
Year. 12/1/15 546 r=li 561 T
Data Source: TDG 1.044 212th Street SW 1,150 212th Street SW 1,o76 North
18 C
498 461 515
19 80th Avenue W
13 647
42 ' 110 68
Future without Project 27 81 54
Average Weekday 14 5 8
PM Peak Hour 1 b
80th Avenue W D 24
Year: 2022 627 a i 598 644
Growth Rate = 2.0% a 22 T
Years of Growth = 7 1,200 212th Street SW 1,322 212th Street SW 1,236 North
Total Growth = 1.1487 21 L
573 530 a 592
22 c, 80th Avenue W
4 tC
15 9][:54J
-� 49 127 78
Total Project
Aver geWe kday 0 t ..0 o 0
_
PM Peak Hour b
80th Avenue W a 0
0 a 0 2
2 T.
1 212th Street SW 2 2121h Street SW 1 North
0 o
1 0 a 1
b 80th Avenue W
4 a ti
0 0 -1
3
Future with Project 27 81 54
Average Weekday 14 5 8
PM Peak Hour 0� ' ti
80th Avenue W24
627 aBL646
t2 T
1,201 212th Street SW 1,324 212th Street SW 1.237 North
21........ P
574 530 b 591
23 0 80th Avenue W
o U r
15 1 9 1 53
52
129 77
Page 1 of 3
D-1
2 Existing Driveway
Synchro ID: 2
43 1 12
�69
Existing �
Average Weekday 1 42 0
PM Peak Hour 2
80th Avenue W 0
Year: 12/2/15 2 0 0 0
" o T
Data Source: GTC 7 Existing Dwy 117 0 North
1 I
5 > 0
a
E4 s 80th Avenue W
a IP
46 115 69
Future without Project 49 128 79
Average Weekday 1 1 48 0
PM Peak Hour 4y
80th Avenue W 0
Year: 2022 2 0 0 0
Growth Rate = 2.0% 0 T
Years of Growth = 7 8 Existing Dwy 134 0 North
Total Growth = 1.1487 1 s
g 0 4, 0
5 sw 80th Avenue W
53������ 132 79
Total Project Trips 1�
Average Weekday 3 0 0
PM Peak Hour ra 0 ti
80th Avenue W 0
7 0 0
r✓ 0 T
7 Access Driveway 7 0 North
1 ra
0 0 I> 0
-1 80th Avenue W
a ft a
a 0 0
Future with Project52 132 60 �.
Average Weekday 4 46 0
PM Peak Hour
80th Avenue W 1S 0
9 0 0 0
rs 0 T
15 Access Driveway 941- 0 North
g 0 y 0
4 c, 80th Avenue W
Q f.R r'
52 78 0
35 � 83
1„ 5
Page 2 of 3
D-2
3 Opp side N Dwy
Synchro ID: 3
Existing 46-1 114 IF69
Average Weekday 0 42�i 4
PM Peak Hour 0 4 ti
80th Avenue W 11�0....
Year. 12015 0 < 0 0
0 T
Date Source: GTC 0 _a 116 North Opposite Driveway 6 North
0 41 U
0 0 6
0 s 80th Avenue W
a r �
0 00 2
42 112 70
Project 3
..... ..
Future without Pect 53
Average Weekday0 48 5
PM Peak Hour 0
80th Avenue W 0
Year: 2022 0 0 0
Growth Rate = 2,0% 0
] 11
Years of Growth = 7 0 F1 33 North Opposite Driveway 7 North
Total Growth = 1,1467 0 o I
0 0 7
0 80th Avenue W
a cr
AA
48 0 76 2
1
28 1_. 80
Total Project Trips 0 0 0
Average Weekday 0 0 0
PM Peak Hour 4
80th Avenue W u0
Kr 0 T
0 North Opposite Driveway 0 North
r
L0A
s 80th Avenue W
0 0 0 ��
0 0 0
Future with Project 53 131 7
Average Weekday L_LJ 48 L58
PM Peak Hour 4 1�1
80th Avenue W 0
0 c:, 0 0
d2 0 T
0 133 North Opposite Driveway 7 North
0 ra I
0 0 7
0 80th Avenue W
a 0
L 48— 128 0 1 78 2
80
Page 3 of 3
D-3
Existing PM Peak-Hour
0 A 'm
Level of ServiceAnalysis
w
H:\2015\15-260\Synchro\2015 Existing Conditions.syn
1: 80th Avenue W & 212th Street SW Brackett's Comer (15-260)
Intersection
Int Delay, s/veh 2.3
Movement
EBL
EBT
EBR
WBL
WBT
WBR
NBL
NBT
NBR
SBL
SBT
SBR
Traffic Vol, veh/h
18
461
19
19
521
21
13
8
47
7
4
12
Future Vol, veh/h
18
461
19
19
521
21
13
8
47
7
4
12
Conflicting Peds, #/hr
2
0
3
3
0
2
1
0
1
1
0
1
Sign Control
Free
Free
Free
Free
Free
Free
Stop
Stop
Stop
Stop
Stop
Stop
RT Channelized
-
-
None
-
None
-
-
None
-
-
None
Storage Length
60
-
-
60
-
-
-
-
50
-
-
-
Veh in Median Storage, #
-
0
-
-
0
-
-
0
-
0
-
Grade, %
-
0
-
-
0
-
0
-
0
-
Peak Hour Factor
92
92
92
82
82
82
68
68
68
72
72
72
Heavy Vehicles, %
2
2
2
1
1
1
2
2
2
4
4
4
Mvmt Flow
20
501
21
23
635
26
19
12
69
10
6
17
Maior/Minor
Majorl
Ma ort
Minorl
Minor2
Conflicting Flow All
662
0
0
523
0
0
1259
1260
515
1253
1258
652
Stage 1
-
-
-
-
552
552
-
696
696
-
Stage 2
-
_
_
707
708
-
557
562
-
Critical Hdwy
4.12
-
-
4.11
-
-
7.12
6.52
6.22
7.14
6.54
6.24
Critical Hdwy Stg 1
-
-
-
-
-
6.12
5.52
-
6.14
5.54
-
Critical Hdwy Stg 2
-
-
-
-
-
6.12
5.52
-
6.14
5.54
-
Follow-up Hdwy
2.218
-
2.209
-
-
3.518
4.018
3.318
3.536
4.036
3.336
Pot Cap -1 Maneuver
927
-
-
1049
-
147
170
560
147
169
464
Stage 1
-
-
-
-
518
515
-
429
440
-
Stage 2
-
-
-
-
-
426
438
-
511
506
-
Platoon blocked, %
-
-
-
Mov Cap -1 Maneuver
924
-
1046
133
162
558
117
161
462
Mov Cap -2 Maneuver
-
-
-
-
133
162
-
117
161
-
Stage 1
-
-
-
-
-
-
506
503
-
419
430
-
Stage 2
-
_
-
395
428
-
427
495
-
Approach
EB
WB
NB
SB
HCM Control Delay, s
0.3
0.3
20
25.4
HCM LOS
C
D
Minor Lane/Major Mvmt NBLnl NBLn2 EBL EBT EBR WBL WBT WBR SBLn1
Capacity (veh/h)
143
558
924 -
- 1046
- 208
HCM Lane V/C Ratio
0.216
0.124
0.021 -
- 0.022
- 0.154
HCM Control Delay (s)
37
12.4
9 -
8.5
- 25.4
HCM Lane LOS
E
B
A -
- A -
- D
HCM 95th %tile Q(veh)
0.8
0.4
0.1 --
- 0.1 -
- 0.5
Gibson Traffic Consultants [SF] 2015 Existing
E-1
H:\2015\15-260\Synchro\2015 Existing Conditions -syn
2: 80th Avenue W & Existing Driveway Brackett's Comer (15-260)
Intersection
Int Delay, s/veh 0.4
Movement
EBL
EBR
NBL
NBT
SBT
SBR
Traffic Vol, veh/h
1
4
1
68
42
1
Future Vol, veh/h
1
4
1
68
42
1
Conflicting Peds, #/hr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
-
None
-
None
Storage Length
0
-
-
-
-
-
Veh in Median Storage, #
0
-
0
0
-
Grade, %
0
-
-
0
0
-
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
1
4
1
74
46
1
Maior/Minor
Minor2
Maiorl
Maior2
Conflicting Flow All
122
46
47
0
-
0
Stage 1
46
-
-
Stage 2
76
-
_
Critical Hdwy
6.42
6.22
4.12
-
-
-
Critical Hdwy Stg 1
5.42
-
-
-
-
-
Critical Hdwy Stg 2
5.42
-
-
-
-
Follow-up Hdwy
3.518
3.318
2.218
-
-
-
Pot Cap -1 Maneuver
873
1023
1560
-
-
Stage 1
976
-
-
-
-
-
Stage 2
947
-
-
-
-
-
Platoon blocked, %
-
-
-
Mov Cap -1 Maneuver
872
1023
1560
Mov Cap -2 Maneuver
872
-
-
Stage 1
976
-
-
-
-
Stage 2
946
-
-
-
Approach
EB
NB
SB
HCM Control Delay, s
8.7
0.1
0
HCM LOS
A
Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR
Capacity (veh/h)
1560
- 989 -
HCM Lane V/C Ratio
0.001
- 0.005 - µ
HCM Control Delay (s)
7.3
0 8.7 -
HCM Lane LOS
A
A A -
HCM 95th %tile Q(veh)
0
- 0
Gibson Traffic Consultants [SF] 2015 Existing
E-2
H:\2015\15-260\Synchro\2015 Existing Conditions.syn
3: 80th Avenue W & 0[mosite Drivewav Brackett's Corner (15-260)
Intersection
Int Delay, s/veh 0.2
Movement
WBL
WBR
NBT
NBR
SBL
SBT
Traffic Vol, veh/h
0
0
68
2
4
42
Future Vol, veh/h
0
0
68
2
4
42
Conflicting Peds, #/hr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
-
None
-
None
Storage Length
0
-
-
-
-
-
Veh in Median Storage, #
0
0
-
-
0
Grade, %
0
-
0
-
-
0
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
0
0
74
2
4
46
Maior/Minor
Minor1
Maior1
Maior2
Conflicting Flow All
129
75
0
0
76
0
Stage 1
75
-
-
-
-
Stage 2
54
-
-
-
Critical Hdwy
6.42
6.22
-
-
4.12
-
Critical Hdwy Stg 1
5.42
-
-
-
-
-
Critical Hdwy Stg 2
5.42
-
-
-
-
Follow-up Hdwy
3.518
3.318
-
2.218
-
Pot Cap -1 Maneuver
865
986
-
_
1523
Stage 1
948
-
-
-
-
Stage 2
969
-
-
-
-
Platoon blocked, %
-
-
Mov Cap -1 Maneuver
862
986
-
-
1523
Mov Cap -2 Maneuver
862
-
-
-
-
-
Stage 1
948
-
-
-
-
-
Stage 2
966
-
-
-
-
Approach
WB
NB
SB
HCM Control Delay, s
0
0
0.6
HCM LOS
A
Minor Lane/Major Mvmt NBT NBRWBLn1 SBL SBT
Capacity (vehlh)
- - - 1523
HCM Lane V/C Ratio
- - 0.003 -
HCM Control Delay (s)
- - 0 7.4 0
HCM Lane LOS
- - A A A
HCM 95th %tile Q(veh)
- - 0 -
Gibson Traffic Consultants [SF] 2015 Existing
E-3
WIMP4111:29� wm"m .
Level of Service Analysis
HA2015\15-260\Synchro\Future Baseline Conditions.syn
1: 80th Avenue W & 212th Street SW Brackett's Corner (15-260)
Intersection
Int Delay, s/veh 2.5
Movement
EBL
EBT
EBR
WBL
WBT
WBR
NBL
NBT
NBR
SBL
SBT
SBR
Traffic Vol, veh/h
19
480
20
20
542
22
14
8
49
7
4
12
Future Vol, vehlh
19
480
20
20
542
22
14
8
49
7
4
12
Conflicting Peds, #/hr
2
0
3
3
0
2
1
0
1
1
0
1
Sign Control
Free
Free
Free
Free
Free
Free
Stop
Stop
Stop
Stop
Stop
Stop
RT Channelized
-
-
None
-
None
-
-
None
-
-
None
Storage Length
60
-
-
60
-
-
-
-
50
-
-
Veh in Median Storage, #
-
0
-
-
0
-
-
0
-
-
0
Grade, %
-
0
-
-
0
-
-
0
-
-
0
-
Peak Hour Factor
92
92
92
82
82
82
68
68
68
72
72
72
Heavy Vehicles, %
2
2
2
1
1
1
2
2
2
4
4
4
Mvmt Flow
21
522
22
24
661
27
21
12
72
10
6
17
Major/Minor
Majorl
Maior2
Minorl
Minor2
Conflicting Flow All
689
0
0
544
0
0
1310
1313
537
1305
1310
678
Stage 1
-
-
-
575
575
-
724
724
-
Stage 2
-
-
-
-
735
738
-
581
586
-
Critical Hdwy
4.12
-
4.11
-
w
7.12
6.52
6.22
7.14
6.54
6.24
Critical Hdwy Stg 1
-
-
-
-
-
6.12
5.52
-
6.14
5.54
-
Critical Hdwy Stg 2
w
-
-
-
6.12
5.52
-
6.14
5.54
-
Follow-up Hdwy
2.218
-
2.209
-
-
3.518
4.018
3.318
3.536
4.036
3.336
Pot Cap -1 Maneuver
905
-
1030
-
-
136
158
544
136
158
449
Stage
-
-
-
-
-
503
503
-
414
427
-
Stage 2
-
-
-
-
-
-
411
424
-
496
494
Platoon blocked, %
-
-
-
-
Mov Cap -1 Maneuver
902
-
-
1027
-
122
150
542
107
150
447
Mov Cap -2 Maneuver
-
-
-
-
-
122
150
-
107
150
-
Stage 1
-
-
-
-
491
491
-
404
417
-
Stage 2
-
-
-
-
-
380
414
-
409
482
-
Approach
EB
WB
NB
SB
HCM Control Delay, s
0.3
0.3
21.6
27.3
HCM LOS
C
D
Minor Lane/Maior Mvmt NBLn1 NBLn2 EBL EBT EBR WBL WBT WBR SBLn1
Capacity (veh/h)
131
542 902 -
- 1027 -
- 193
HCM Lane V/C Ratio
0.247
0.133 0.023 -
- 0.024 -
- 0.166
HCM Control Delay (s)
41.3
12.7 9.1 -
- 8.6 -
- 27.3
HCM Lane LOS
E
B A -
A -
- D
HCM 95th %tile Q(veh)
0.9
0.5 0.1 -
- 0.1 -
- 0.6
Gibson Traffic Consultants [SF] Future Baseline Conditions
F-1
HA2015\15-260\Synchro\Future Baseline Conditions.syn
2: 80th Avenue W & Existina Drivewav Brackett's Comer (15-260)
Intersection
Int Delay, slveh 0.4
Movement
EBL
EBR
NBL
NBT
SBT
SBR
Traffic Vol, vehlh
1
4
1
71
44
1
Future Vol, vehlh
1
4
1
71
44
1
Conflicting Peds, #!hr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
-
None
None
Storage Length
0
-
-
-
Veh in Median Storage, #
0
-
0
0
-
Grade, %
0
-
-
0
0
-
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
1
4
1
77
48
1
Maior/Minor
Minor2
Ma"or1
Malor2
Conflicting Flow All
127
48
49
0
-
0
Stage 1
48
-
-
-
-
-
Stage 2
79
-
-
-
-
-
Critical Hdwy
6.42
6.22
4.12
-
-
Critical Hdwy Stg 1
5.42
-
-
-
-
Critical Hdwy Stg 2
5.42
-
-
-
-
-
Follow-up Hdwy
3.518
3.318
2.218
-
-
-
Pot Cap -1 Maneuver
868
1021
1558
-
-
Stage 1
974
-
-
-
-
Stage 2
944
-
-
-
-
Platoon blocked, %
-
-
-
Mov Cap -1 Maneuver
867
1021
1558
-
-
Mov Cap -2 Maneuver
867
-
_
-
Stage 1
974
-
-
-
Stage 2
943
-
-
Approach
EB
NB
SB
HCM Control Delay, s
8.7
0.1
0
HCM LOS
A
Minor Lane/Major Mvmt
NBL
NBT EBLn1
SBT SBR
Capacity (vehm)
1558
- 986
-
HCM Lane WC Ratio
0.001
- 0.006
-
HCM Control Delay (s)
7.3
0 8.7
- -
HCM Lane LOS
A
A A
-
HCM 95th %tile Q(veh)
0
- 0
-
Gibson Traffic Consultants [SF] Future Baseline Conditions
F-2
H:\2015\15-260\Synchro\Future Baseline Conditions.syn
3: 80th Avenue W & Oeeosite Drivewav Brackett's Corner (15-260)
Intersection
Int Delay, slveh 0.2
Movement
WBL
WBR
NBT
NBR
SBL
SBT
Traffic Vol, vehlh
0
0
71
2
4
44
Future Vol, vehlh
0
0
71
2
4
44
Conflicting Peds, #!hr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
-
None
None
Storage Length
0
-
-
-
-
Veh in Median Storage, #
0
0
-
-
0
Grade, %
0
-
0
-
-
0
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
0
0
77
2
4
48
Major/Minor
Minor1
Maior1
Maior2
Conflicting Flow All
135
78
0
0
79
0
Stage 1
78
-
-
-
_
Stage 2
57
-
-
-
-
Critical Hdwy
6.42
6.22
-
-
4.12
-
Critical Hdwy Stg 1
5.42
-
-
-
Critical Hdwy Stg 2
5.42
-
-
_
-
Follow-up Hdwy
3.518
3.318
-
-
2.218
Pot Cap -1 Maneuver
859
983
-
-
1519
-
Stage 1
945
-
-
-
-
-
Stage 2
966
-
-
-
-
Platoon blocked, %
-
-
Mov Cap -1 Maneuver
856
983
-
1519
-
Mov Cap -2 Maneuver
856
Stage 1
945
-
-
-
Stage 2
963
-
-
-
-
-
Approach
WB
NB
SB
HCM Control Delay, s
0
0
0.6
HCM LOS
A
Minor Lane/Major Mvmt NBT NBRWBLn1 SBL SBT
Capacity (vehlh)
- - 1519 -
HCM Lane V/C Ratio
- - - 0.003 -
HCM Control Delay (s) -
- 0 7.4 0
HCM Lane LOS
A A A
HCM 95th %tile Q(veh) -
- 0 -
Gibson Traffic Consultants [SF] Future Baseline Conditions
F-3
IMOSIM, 11'a
.Level of Service Analysis
G
H:\2015\15-260\Synchro\Future With Development Conditions.syn
1: 80th Avenue W & 212th Street SW Brackett's Comer (15-260)
Intersection
Int Delay, s/veh 2.5
Movement
EBL
EBT
EBR
WBL
WBT
WBR
NBL
NBT
NBR
SBL
SBT
SBR
Traffic Vol, veh/h
19
480
21
22
542
22
14
8
48
7
4
12
Future Vol, veh/h
19
480
21
22
542
22
14
8
48
7
4
12
Conflicting Peds, #/hr
2
0
3
3
0
2
1
0
1
1
0
1
Sign Control
Free
Free
Free
Free
Free
Free
Stop
Stop
Stop
Stop
Stop
Stop
RT Channelized
-
-
None
-
-
None
-
-
None
-
None
Storage Length
60
-
60
-
-
-
-
50
-
Veh in Median Storage, #
-
0
-
-
0
-
-
0
-
-
0
-
Grade, %
-
0
-
-
0
-
-
0
-
0
-
Peak Hour Factor
92
92
92
82
82
82
68
68
68
72
72
72
Heavy Vehicles, %
2
2
2
1
1
1
2
2
2
4
4
4
Mvmt Flow
21
522
23
27
661
27
21
12
71
10
6
17
Major/Minor
Major1
Maior2
Minor1
Minor2
Conflicting Flow All
689
0
0
546
0
0
1315
1317
537
1310
1316
678
Stage 1
-
-
-
-
-
-
575
575
-
729
729
Stage 2
-
-
-
-
-
740
742
-
581
587
-
Critical Hdwy
4.12
-
4.11
-
-
7.12
6.52
6.22
7.14
6.54
6.24
Critical Hdwy Stg 1
-
-
-
-
-
-
6.12
5.52
-
6.14
5.54
-
Critical Hdwy Stg 2
-
-
-
-
-
6.12
5.52
-
6.14
5.54
Follow-up Hdwy
2.218
-
-
2.209
-
-
3.518
4.018
3.318
3.536
4.036
3.336
Pot Cap -1 Maneuver
905
-
1028
-
-
135
157
544
135
156
449
Stage
-
--
-
-
-
503
503
-
411
425
-
Stage 2
-
-
-
-
-
-
409
422
-
496
493
-
Platoon blocked, %
-
-
Mov Cap -1 Maneuver
902
-
-
1025
-
121
149
542
106
148
447
Mov Cap -2 Maneuver
-
-
-
121
149
-
106
148
-
Stage 1
-
-
-
491
491
-
401
413
-
Stage 2
-
-
-
-
-
377
410
-
410
481
-
Approach
EB
WB
NB
SB
HCM Control Delay, s
03
03
21.7
27.5
HCM LOS
C
D
Minor Lane/Major Mvmt NBLn1 NBLn2 EBL EBT EBR WBL WBT WBR SBLn1
Capacity (veh/h)
130
542
902 -
- 1025
- 192
HCM Lane WC Ratio
0.249
0.13
0.023 -
- 0.026 -
- 0.166
HCM Control Delay (s)
41.6
12.6
9.1 -
- 8.6 -
- 27.5
HCM Lane LOS
E
B
A -
_ A
D
HCM 95th %tile Q(veh)
0.9
0.4
0.1
- 0.1 -
- 0.6
Gibson Traffic Consultants [SF] Future with Development Conditions
G-1
H:\2015\15-260\Synchro\Future With Development Conditions.syn
2: 80th Avenue W & Development Driveway Brackett's Comer (15-260)
Intersection
Int Delay, slveh 0.6
Movement
EBL
EBR
NBL
NBT
SBT
SBR
Traffic Vol, vehlh
2
3
5
71
44
4
Future Vol, vehlh
2
3
5
71
44
4
Conflicting Peds, #Ihr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
-
None
-
None
Storage Length
0
-
-
-
-
-
Veh in Median Storage, #
0
-
-
0
0
-
Grade, %
0
-
0
0
-
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
2
3
5
77
48
4
Major/Minor
Minor2
Ma ort
Maior2
Conflicting Flow All
138
50
52
0
-
0
Stage 1
50
-
-
-
Stage 2
88
-
-
-
-
-
Critical Hdwy
6.42
6.22
4.12
-
Critical Hdwy Stg 1
5.42
-
-
-
-
Critical Hdwy Stg 2
5.42
-
Follow -up Hdwy
3.518
3.318
2.218
-
-
Pot Cap -1 Maneuver
855
1018
1554
Stage 1
972
-
-
-
-
-
Stage 2
935
-
-
-
Platoon blocked, %
-
Mov Cap -1 Maneuver
852
1018
1554
-
-
-
Mov Cap -2 Maneuver
852
-
-
-
Stage 1
972
-
-
-
-
-
Stage 2
932
-
-
-
-
-
Approach
EB
NB
SB
HCM Control Delay, s
8.8
0.5
0
HCM LOS
A
Minor Lane/Maior Mvmt NBL NBT EBLn1 SBT SBR
Capacity (vehlh)
1554
- 944 - -
HCM Lane V/C Ratio
0.003
- 0.006
HCM Control Delay (s)
7.3
0 8.8 - -
HCM Lane LOS
A
A A - -
HCM 95th %tile Q(veh)
0
- 0 - -
Gibson Traffic Consultants [SF] Future with Development Conditions
G-2
H:\2015\15-260\Synchro\Future With Development Conditions.syn
3: 80th Avenue W & Opposite Driveway Brackett's Corner (15-260)
Intersection
Int Delay, slveh 0.2
Movement
WBL
WBR
NBT
NBR
SBL
SBT
Traffic Vol, vehlh
0
0
71
2
4
44
Future Vol, vehlh
0
0
71
2
4
44
Conflicting Peds, #Ihr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
-
None
-
None
Storage Length
0
-
-
-
Veh in Median Storage, #
0
-
0
-
0
Grade, %
0
-
0
-
-
0
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
0
0
77
2
4
48
MaiodMinor
Minor1
Ma ort
Ma'or2
Conflicting Flow All
135
78
0
0
79
0
Stage 1
78
-
-
-
-
-
Stage 2
57
-
-
-
-
-
Critical Hdwy
6.42
6.22
-
-
4.12
-
Critical Hdwy Stg 1
5.42
-
-
-
-
-
Critical Hdwy Stg 2
5.42
-
-
-
-
-
Follow-up Hdwy
3.518
3.318
-
2.218
-
Pot Cap -1 Maneuver
859
983
1519
-
Stage 1
945
-
-
-
-
Stage 2
966
-
-
-
-
Platoon blocked, %
-
-
Mov Cap -1 Maneuver
856
983
-
1519
Mov Cap -2 Maneuver
856
-
-
-
-
Stage 1
945
-
-
-
-
Stage 2
963
-
-
-
-
-
Approach
WB
NB
SB
HCM Control Delay, s
0
0
0.6
HCM LOS
A
Minor Lane/Major Mvmt NBT NBRWBLn1 SBL SBT
Capacity (vehlh)
- - - 1519 -
HCM Lane VIC Ratio
- - 0.003 -
HCM Control Delay (s)
- - 0 7.4 0
HCM Lane LOS
- - A A A
HCM 95th %tile Q(veh)
- - - 0 -
Gibson Traffic Consultants [SF] Future with Development Conditions
G-3
2022/2023 Baseline PM Peak -Hour
Level of Service Analysis
IF
H:\2015\15-260\Synchro\Future Baseline +5 yr Conditions.syn
1: 80th Avenue W & 212th Street SW Brackett's Comer (15-260)
Intersection
Int Delay, s/veh 2.2
Movement
EBL
EBT
EBR
WBL
WBT
WBR
NBL
NBT
NBR
SBL
SBT
SBR
Traffic Vol, vehlh
21
530
22
22
598
24
15
9
54
8
5
14
Future Vol, veh/h
21
530
22
22
598
24
15
9
54
8
5
14
Conflicting Peds, #/hr
2
0
3
3
0
2
1
0
1
1
0
1
Sign Control
Free
Free
Free
Free
Free
Free
Stop
Stop
Stop
Stop
Stop
Stop
RT Channelized
-
-
None
-
-
None
-
None
-
-
None
Storage Length
60
-
-
60
-
-
-
-
50
-
-
-
Veh in Median Storage, #
-
0
-
-
0
-
-
0
-
-
0
-
Grade, %
-
0
-
-
0
-
-
0
-
-
0
-
Peak Hour Factor
92
92
92
92
92
92
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
1
1
1
2
2
2
4
4
4
Mvmt Flow
23
576
24
24
650
26
16
10
59
9
5
15
Maior/Minor
Maiorl
Malor2
Minorl
Minor2
Conflicting Flow All
677
0
0
601
0
0
1357
1360
592
1352
1359
667
Stage
-
-
-
-
-
635
635
-
712
712
-
Stage 2
-
-
-
-
-
-
722
725
-
640
647
-
Critical Hdwy
4.12
-
-
4.11
-
7.12
6.52
6.22
7.14
6.54
6.24
Critical Hdwy Stg 1
-
-
-
-
-
6.12
5.52
-
6.14
5,54
-
Critical Hdwy Stg 2
-
-
-
-
-
-
6.12
5.52
-
6.14
5.54
-
Follow-up Hdwy
2.218
-
-
2.209
-
-
3.518
4.018
3.318
3.536
4.036
3.336
Pot Cap -1 Maneuver
915
-
981
-
-
126
148
506
126
147
455
Stage 1
-
-
-
-
_
-
467
472
-
420
433
-
Stage 2
-
-
-
-
-
-
418
430
-
460
463
Platoon blocked, %
-
-
-
-
Mov Cap -1 Maneuver
912
-
-
978
-
113
140
504
101
140
453
Mov Cap -2 Maneuver
-
-
-
-
-
-
113
140
-
101
140
-
Stage 1
-
-
-
-
-
-
455
460
-
409
422
-
Stage 2
µ
-
-
388
419
-
387
451
-
Approach
EB
WB
NB
SB
HCM Control Delay, s
0.3
0.3
22.1
28.1
HCM LOS
C
D
Minor Lane/Major Mvmt NBLn1 NBLn2 EBL EBT EBR WBL WBT WBR SBLn1
Capacity (veh/h)
122
504
912
- 978
- 185
HCM Lane V/C Ratio
0.214
0.116
0.025 -
- 0.024 -
- 0.159
HCM Control Delay (s)
42.4
13.1
9 -
- 8.8
28.1
HCM Lane LOS
E
B
A
- A -
- D
HCM 95th %tile Q(veh)
0.8
0.4
0.1
- 0.1 -
0.6
Gibson Traffic Consultants [SF] Future Baseline +5 yr Conditions
H-1
H:\2015\15-260\Synchro\Future Baseline +5 yr Conditions.syn
2: 80th Avenue W & Existing Driveway Bracketfs Comer (15-260)
Intersection
Int Delay, slveh 0.4
Movement
EBL
EBR
NBL
NBT
SBT
SBR
Traffic Vol, vehlh
1
5
1
78
48
1
Future Vol, veh/h
1
5
1
78
48
1
Conflicting Peds, #/hr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
None
None
Storage Length
0
-
-
-
Veh in Median Storage, #
0
-
0
0
-
Grade, %
0
-
-
0
0
-
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
1
5
1
85
52
1
Maior/Minor
Minor2
Maiorl
Maior2
Conflicting Flow All
140
53
53
0
0
Stage 1
53
-
-
-
Stage 2
87
-
-
-
-
-
Critical Hdwy
6.42
6.22
4.12
_
Critical Hdwy Stg 1
5.42
-
-
-
Critical Hdwy Stg 2
5.42
-
-
-
-
Follow-up Hdwy
3.518
3.318
2.218
-
-
Pot Cap -1 Maneuver
853
1014
1553
-
Stage 1
970
-
-
Stage 2
936
-
-
-
-
-
Platoon blocked, %
-
-
Mov Cap -1 Maneuver
852
1014
1553
-
-
Mov Cap -2 Maneuver
852
-
-
-
-
-
Stage 1
970
-
-
-
-
-
Stage 2
935
-
-
-
-
-
Approach
EB
NB
SB
HCM Control Delay, s
8.7
0.1
0
HCM LOS
A
Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR
Capacity (veh/h)
1553
- 983 -
HCM Lane V/C Ratio
0.001
- 0.007
HCM Control Delay (s)
7.3
0 8.7 - -
HCM Lane LOS
A
A A T -
HCM 95th %tile Q(veh)
0
- 0 - -
Gibson Traffic Consultants [SF] Future Baseline +5 yr Conditions
H-2
H:12015\15-260\Synchro\Future Baseline +5 yr Conditions.syn
3: 80th Avenue W & Opposite Driveway Brackett's Comer (15-260)
Intersection
Int Delay, s/veh 0.3
Movement
WBL
WBR
NBT
NBR
SBL
SBT
Traffic Vol, veh/h
0
0
78
2
5
48
Future Vol, veh/h
0
0
78
2
5
48
Conflicting Peds, #/hr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
None
-
None
Storage Length
0
-
-
-
-
-
Veh in Median Storage, #
0
-
0
-
-
0
Grade, %
0
-
0
-
-
0
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
0
0
85
2
5
52
Maior/Minor
Minor1
Ma ort
Maior2
Conflicting Flow All
149
86
0
0
87
0
Stage 1
86
-
-
-
-
Stage 2
63
-
-
-
-
Critical Hdwy
6.42
6.22
-
-
4.12
-
Critical Hdwy Stg 1
5.42
-
-
-
-
-
Critical Hdwy Stg 2
5.42
-
-
-
-
-
Follow-up Hdwy
3.518
3.318
-
-
2.218
-
Pot Cap -1 Maneuver
843
973
-
-
1509
-
Stage 1
937
-
-
-
Stage 2
960
-
-
-
-
Platoon blocked, %
-
-
Mov Cap -1 Maneuver
840
973
-
1509
-
Mov Cap -2 Maneuver
840
-
-
-
-
Stage 1
937
-
-
-
-
Stage 2
957
-
-
-
-
ADDroach
WB
NB
SB
HCM Control Delay, s
0
0
0.7
HCM LOS
A
Minor Lane/Major Mvmt NBT NBRWBLn1 SBL SBT
Capacity (veh/h)
- - - 1509 -
HCM Lane V/C Ratio
- - 0.004 -
HCM Control Delay (s)
0 7.4 0
HCM Lane LOS
- A A A
HCM 95th %tile Q(veh)
- - 0 -
Gibson Traffic Consultants [SF] Future Baseline +5 yr Conditions
H-3
2022/2023 Future i h Development
eo
PM Peak -Hour
Level of Service Analysis
H:\2015\15-260\Synchro\Future With Development +5 yr Conditions.syn
1: 80th Avenue W & 212th Street SW Brackett's Comer (15-260)
Intersection
Int Delay, s/veh 2.1
Movement
EBL
EBT
EBR
WBL
WBT
WBR
NBL
NBT
NBR
SBL
SBT
SBR
Traffic Vol, veh/h
21
530
23
24
598
24
15
9
53
8
5
14
Future Vol, veh/h
21
530
23
24
598
24
15
9
53
8
5
14
Conflicting Peds, #/hr
2
0
3
3
0
2
1
0
1
1
0
1
Sign Control
Free
Free
Free
Free
Free
Free
Stop
Stop
Stop
Stop
Stop
Stop
RT Channelized
-
-
None
-
-
None
-
None
-
-
None
Storage Length
60
-
-
60
-
-
-
-
50
-
-
-
Veh in Median Storage, #
-
0
-
-
0
-
0
-
-
0
-
Grade, %
-
0
-
-
0
-
-
0
-
-
0
-
Peak Hour Factor
92
92
92
92
92
92
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
1
1
1
2
2
2
4
4
4
Mvmt Flow
23
576
25
26
650
26
16
10
58
9
5
15
Maior/Minor
Maior1
Maior2
Minor1
Minor2
Conflicting Flow All
677
0
0
602
0
0
1362
1364
593
1356
1364
667
Stage 1
-
-
-
-
635
635
-
716
716
-
Stage 2
-
-
-
-
727
729
-
640
648
-
Critical Hdwy
4.12
-
-
4.11
-
-
7.12
6.52
6.22
7.14
6.54
6.24
Critical Hdwy Stg 1
-
-
-
-
6.12
5.52
-
6.14
5.54
Critical Hdwy Stg 2
-
-
-
-
-
6.12
5.52
-
6.14
5.54
-
Follow-up Hdwy
2.218
-
-
2.209
-
-
3.518
4.018
3.318
3.536
4.036
3.336
Pot Cap -1 Maneuver
915
-
-
980
-
-
125
148
506
125
146
455
Stage
-
-
-
-
-
467
472
-
418
431
-
Stage 2
-
-
-
-
-
-
415
428
-
460
463
-
Platoon blocked, %
-
-
-
-
Mov Cap -1 Maneuver
912
-
-
977
-
-
112
140
504
100
138
453
Mov Cap -2 Maneuver
-
-
-
-
112
140
-
100
138
-
Stage 1
-
-
-
-
-
455
460
-
407
419
-
Stage 2
-
-
-
384
416
-
388
451
-
Approach
EB
WB
NB
SB
HCM Control Delay, s
0.3
0.3
22.3
28.2
HCM LOS
C
D
Minor Lane/Major Mvmt NBLn1 NBLn2 EBL EBT EBR WBL WBT WBR SBLn1
Capacity (veh/h)
121 504
912 -
- 977 -
- 184
HCM Lane V/C Ratio
0.216 0.114
0.025 -
- 0.027
- 0.159
HCM Control Delay (s)
42.7 13.1
9 -
- 8.8 -
- 28.2
HCM Lane LOS
E B
A -
- A
- D
HCM 95th %tile Q(veh)
0.8 0.4
0.1 -
- 0.1
- 0.6
Gibson Traffic Consultants [SF] Future with Development +5 yr Conditions
I -I
HA2015\15-260\Synchro\Future With Development +5 yr Conditions.syn
2: 80th Avenue W & Development Drivewav Brackett's Comer (15-260)
Intersection
Int Delay, s/veh 0.6
Movement
EBL
EBR
NBL
NBT
SBT
SBR
Traffic Vol, veh/h
2
4
5
78
48
4
Future Vol, veh/h
2
4
5
78
48
4
Conflicting Peds, #/hr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
-
None
-
None
Storage Length
0
-
-
-
-
Veh in Median Storage, #
0
-
0
0
-
Grade, %
0
-
-
0
0
-
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
2
4
5
85
52
4
Maior/Minor
Minor2
Ma orl
Maior2
Conflicting Flow All
150
54
57
0
-
0
Stage 1
54
-
Stage 2
96
-
-
-
-
Critical Hdwy
6.42
6.22
4.12
-
-
Critical Hdwy Stg 1
5.42
-
-
-
-
Critical Hdwy Stg 2
5.42
-
-
_
-
-
Follow-up Hdwy
3.518
3.318
2.218
-
Pot Cap -1 Maneuver
842
1013
1547
-
-
Stage 1
969
-
-
-
Stage 2
928
-
-
-
-
Platoon blocked, %
-
-
-
Mov Cap -1 Maneuver
839
1013
1547
-
-
Mov Cap -2 Maneuver
839
-
-
-
-
-
Stage 1
969
Stage 2
925
-
-
Approach
EB
NB
SB
HCM Control Delay, s
8.8
0.4
0
HCM LOS
A
Minor Lane/Major Mvmt
NBL
NBT EBLn1
SBT SBR
Capacity (veh/h)
1547
- 947
HCM Lane V/C Ratio
0.004
- 0.007
-
HCM Control Delay (s)
7.3
0 8.8
-
HCM Lane LOS
A
A A
-
HCM 95th %tile Q(veh)
0
- 0
- -
Gibson Traffic Consultants [SF] Future with Development +5 yr Conditions
I-2
HA2015\15-260\Synchro\Future With Development +5 yr Conditions.syn
3: 80th Avenue W & Opposite Driveway Brackeffs Comer (15-260)
Intersection
Int Delay, s/veh 0.3
Movement
WBL
WBR
NBT
NBR
SBL
SBT
Traffic Vol, veh/h
0
0
78
2
5
48
Future Vol, veh/h
0
0
78
2
5
48
Conflicting Peds, #/hr
0
0
0
0
0
0
Sign Control
Stop
Stop
Free
Free
Free
Free
RT Channelized
-
None
-
None
None
Storage Length
0
-
-
-
Veh in Median Storage, #
0
-
0
-
-
0
Grade, %
0
-
0
-
-
0
Peak Hour Factor
92
92
92
92
92
92
Heavy Vehicles, %
2
2
2
2
2
2
Mvmt Flow
0
0
85
2
5
52
Major/Minor
Minorl
Maiorl
Major2
Conflicting Flow All
149
86
0
0
87
0
Stage 1
86
-
-
-
-
-
Stage 2
63
-
-
-
-
-
Critical Hdwy
6.42
612
-
-
4.12
-
Critical Hdwy Stg 1
5.42
-
-
-
-
Critical Hdwy Stg 2
5.42
-
-
-
-
-
Follow-up Hdwy
3.518
3.318
-
-
2.218
-
Pot Cap -1 Maneuver
843
973
-
-
1509
-
Stage 1
937
-
-
-
Stage 2
960
-
-
-
Platoon blocked, %
_
Mov Cap -1 Maneuver
840
973
-
-
1509
-
Mov Cap -2 Maneuver
840
-
-
-
-
Stage 1
937
-
-
-
Stage 2
957
-
-
-
-
-
Approach
WB
NB
SB
HCM Control Delay, s
0
0
0.7
HCM LOS
A
Minor Lane/Maior Mvmt NBT NBRWBLnl SBL SBT
Capacity (veh/h) -
- 1509 -
HCM Lane V/C Ratio -
- - 0.004 -
HCM Control Delay (s) -
0 7.4 0
HCM Lane LOS -
- A A A
HCM 95th %tile Q(veh) -
- - 0 -
Gibson Traffic Consultants [SF] Future with Development +5 yr Conditions
I-3
WSDOT Collision Data.
Channelization Warrants
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Brackett's Corner
GTC #15-260
GIBSON TRAFFIC CONSULTANTS
80th Avenue W @ Site Access - 2018
Right -Turn Lane Guidelines
Posted Speed 25
Right Turn Volume:
4 [DDHV]
Adjusted Right Turn Volume:
4 [DDHV]
Pk Hr Curb Ln Approach Vol:
48 [DDHV]
[1 ] For two-lane highways, use the peak hour DDHV (through + right turn).
For multilane, high speed highways (posted speed 45 mph or above), use the right -lane pec
hour approach volume (through + right turn).
[2] When all three of the following conditions are met, reduce the right -turn DDHV by 20:
The posted speed is 45 mph or less, the right -turn volume is greater than 40 VPH, the peak
hour approach volume (DDHV) is less than 300 VPH.
[3] For right -turn corner design, see Exhibit 1310-11.
[4] For right -turn pocket or taper design, see Exhibit 1310-16.
[5] For right -turn lane design, see Exhibit 1310-17.
For Multilane, low speed highways (posted speed is less than 45 mph), no right -turn lane
taper is required.
Based on WSDOT July 2010 Design Manual: Exhibit 1310-19, Page 1310-40.
K-2
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