S-10-73 Letter of Incomplete Application - 2nd Review.pdfJanuary 20, 2011
121 5th AVENUE NORTH ® EDMONDS, WA 98020 0 (425) 771-0220 ® FAX (425) 771-0221
Website: www dedmonds.wa.us
DEVELOPMENT SERVICES DEPARTMENT
Mr. Ron Johnson
19601 — 23`d Ave. NW
Shoreline, WA 98177
Subject: REQUEST FOR ADDITIONAL INFORMATION FOR YOUR TOWNHOUSE
SUBDIVISION LAND USE APPLICATION, FILE NO. PLN20100073
Dear Mr. Johnson:
MIKE COOPER
MAYOR
Thank you for submitting additional information on January 6, 2011 for your land use application for
a townhouse subdivision located at 656 and 658 Daley Street. Upon staff's review of this
information, it was found that modifications will need to be made to the layout of the proposed lot
lines and additional information is required. Please respond to the following items for your
application to become complete and so that staff's review of your application can continue:
Additional information must be shown on the preliminary plans to assist staff in our review
of your proposal. Please add the following items to the preliminary short plat survey:
a. Show the location of the existing parking stall striping for the row of parking
between the parking lot and the townhomes.
b. Show the location of existing curb between the parking lot and townhomes.
c. Show and label the outline of all existing structures, including the footprints of the
duplex and single-family buildings out to the outermost walls, lines of all eaves and
overhangs, exterior stairs and landings, etc.
d. Provide the dimensions between the structures and all proposed property lines as well
as between the eaves and all proposed property lines.
e. Show all existing and proposed easements.
2. Please refer to the enclosed comments from Leif Bjorback, Assistant Building Official, dated
January 20, 2011. As stated in Mr. Bjorback's comments and in our meeting with you this
afternoon, additional information is necessary to determine if the structures will comply with
Building Code requirements, particularly those related to fire separation. Based on Mr.
Bjorback's initial review, it appears that the proposed property lines will need to be shifted in
order to comply with the applicable Building Code requirements. Please modify the proposal
as necessary in response to Mr. Bjorback's letter. The items listed above to be added to the
preliminary plans will assist Mr. Bjorback in determining Building Code compliance.
Additionally, please submit as -built floor plans of each floor of each unit with the proposed
lot lines overlayed on the floor plans so that staff can verify the distances of the proposed lot
lines to all walls, openings, and projections.
lncorj_-Oop aced August 11, 1890
Sister City - Helcinan, Japan
3. Please refer to the enclosed memorandum from Jeanie McConnell, Engineering Program
Manager, dated January 19, 2011 with additional items that will need to be addressed in
order for the Engineering Division to be able to continue with review of your application.
4. The street file for 656 Daley Street contains the enclosed site plan and parking calculations,
which were submitted by you on December 15, 2008. Please confirm if these calculations
are still current, or if there have been any changes to the number of parking stalls required
(based on the size of the church and the number of bedrooms within the residential units) or
any changes to the existing number of stalls provided on site. This will assist staff in
confirming compliance with the parking requirements of ECDC 17.50.
Please note that your application will be on hold until a response is received regarding the above
items. Pursuant to Edmonds Community Development Code (ECDC) 20.02.003.D, you must submit
the above information within 90 days. Thus, your application will expire if the requested
information is not received by April 20, 2010. If you have any questions, feel free to contact me at
(425) 771-0220, extension 1224.
Sincerely,
Development Services Department - Planning Division
Jen Machuga
Planner
Enclosures: Comments from Leif Bjorback dated 1/20/11
Memo from Jeanie McConnell dated 1/19/11
Site Plan and Parking Calculations submitted 12/15/08
Cc: File No. PLN20100073
Page 2 of 2
-� °` E°AI� City of Edmonds
A Short Plat Permit Comments
BUILDING DIVISION
DATE January 20, 2011
STAFF: Leif Bjorback, Assistant Building Official
RE: Project Address: 656 Daley St.
Project: Open Bible Church Short Plat
Previous comments provided by the Building Division included the following item.
2. Zero lot line construction must comply with the fare resistive requirements of section R302 of
the International Residential Code. Each separate unit must also comply with all other IRC
requirements for dwelling units.
To clarify the deficiencies noted by the Building Division in the short plat map received by the
City on 11/19/2010, the following must be addressed.
Table R302.1 requires exterior walls within 5 feet of a property line to be one hour rated,
and prohibits any openings (doors and windows) within 3 feet of a property line. Also,
projections are not allowed within 2 feet of a property line, protected when closer than 5
feet. Additional information is required to show compliance at the following locations.
a. Proximity of the new duplex on lots 2 and 3 to their respective north property
lines.
b. Lot 3 between the duplex and the west property line.
c. Lot 1, once the existing residence is partially demolished as proposed.
2. The width of the lot 1 pedestrian easement between lots 3 and 4 shows 10.5 feet. The
distance between the structure on lots 2 and 3 and the near face of the
retaining/foundation wall (at the raised concrete porch) for a future lot 4 structure is 10
feet as shown on the approved plans for permit BLD 2010-0628. This would place the
portion of the foundation intended for lot 4 partially into lot 1, which is not acceptable.
Date:
To:
From:
Subject:
January 19, 2011
Jen Machuga, Planner
Jeanie McConnell, Engineering Program Manager
PLN20100073, 4 -lot Short Plat
656 Daley Street
The following comments are based upon review of the additional information submitted by
the applicant on January 6, 2011. The submittal was in response to the comments provided by
the Engineering Division on December 17, 2010. Please ask the applicant to revise and
resubmit plans addressing the comments below.
1. A note has been added to the utility plan indicating the downspouts for the future dwelling
unit will connect to the existing storm detention system. The existing storm detention
system was sized, however, under old storm code. The city adopted a new stormwater
management code in June 2010. All new development will need to comply with the new
storm code. Please find attached a copy of the new storm detention sizing worksheet. In
review of the worksheet it can be seen that 25 -feet of 30" pipe (the size and length
installed with the duplex) no longer provides capacity for 5000sf of impervious surface
area. Plans will need to be adjusted to reflect the installation of additional storm pipe to
meet current standards or installation of a completely separate storm detention system.
2. Please clarify the "storm outlet pipe" shown in the alley from the outfall of the detention
system to the existing CB near the SW corner of the property. If this is a private outfall
line then it should be located on private property. If it is mainline then it should be 12" in
diameter and there should be a catch basin near the SE corner of the property. The
detention outfall should be connected to this CB. Please confirm the size and location of
the pipe.
Thank you.
City of Edmonds
Stormwater Rest Management Practices Simplified Sizing Tool—City of Edmonds
Unlike the linear relationships for iiiii1tration facilities, the y-axis intercept of the regression line
is not zero. Because the relationship is linear and the y -intercept is an integer, the slope of the
line ("Factor") and the y -intercept ("Integer") can be used to calculate the pipe length as a
function of the impervious surface area draining to it:
Pipe Length (Feet) = [Factor x Impervious Area (square feet)] + Integer
As an example, for a project subject to the Category 2 site standards, the length of a 30 inch
diameter pipe in feet would be calculated by multiplying the contributing impervious surface
area (fti square feet) by 0.0185 and then adding 13.6.
The low flow orifice diameter required tCr meet standards varies by contributing area as shown in
Tables 5 and 6 for Category I and Category 2 sites, respectively. For intermediate areas the
orifice diameter should be rounded down to the nixxt smallest area shown in the table. For
Category 2 sites this may result in a detention pipe that somewhat over -achieves the 2 -year
standard and under -achieves the 10- and 100 --year flow control standards.
Use of the simplified sizing too] is limited to sites with up to 10,000 square feet of impervious
surface area. However, modeling was performed for Category 2 sites up to 0,5 acres. Sizing
results for these IIII-ger Contributing areas were included in the data Set used to develop the sizing
equations, and these equations can be used as rule ofthumb sizing for City design review of
submittals for larger sites.
Table 5. Detention pipe look -up table for Category I. sites,
Contributing Impervious
Surface Area (st)
Pipe Volume
(cf)
Length of Pipe `(fl) foo- Given Inside Diameter
13 -inch 24 -inch 30 -inch 36 -inch
2,000
73
41
22 15
11
2,500
89
49
30 18 —1-12
3,000
109
61
33 23
16
3,500
122
74
38 24
17
4,000
142
81
45 29
20
4,500
160
95
49 312 L
23
5,000
181
tl 56 35
25
sr— square reet; cf — cubic feet
Pipe Volume is average required finr all pipe diameters, which diMr somewhat due to varying orifice size.
Detention pipe sized to achieve Category I detention standard: 0.25 ck; per acre of impervious surface area for the 14 year 3
recur-ence interval flow.
W
0,5" orifice.
0,625" orifice
0.75" orifice
0,875' orifice
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