1325_001May 20, 2019
Strobl Design
Jacob Strobl
PO Box 20764
Seattle, WA 98102
iacob@strobidesien.com
(206)661-3622
JoAnne Zulauf
Engineering Technician
City of Edmonds
(425) 771-0220
Re: Plan Check: BLD2019-0116
Engineering Review Comments
Dear JoAnne,
Please see the below responses to the correction notice dated March 21, 2019 for 9527 1901h PI SW,
plan check number BLD2019-0116.
General
Correction #1
Submit ROW Permit Application form
Response:
Completed Right of Way application has been submitted with the permit revisions.
Correction #2
Submit Side Sewer Permit Application form
Response:
Completed Side Sewer permit application has been submitted with the permit revisions.
Correction #3 Through #11
Response:
See response from civil engineer.
Water
Correction #1 Through #3
Response:
See response from civil engineer.
Sewer
Correction #1 Throueh #4
Response:
See response from civil engineer.
Dry Utilities
Correction #1
Response:
See response from civil engineer.
Driveway Waiver
Response:
See attached cost estimate from the general contractor outlining the estimated cost to build the
sidewalk and necessary improvements. The costs of the improvements are economically unfeasible
for this scale of project.
These items resolve the plan corrections for the project. Please let me know if you have any questions.
Best Regards,
Jacob Strobl
C �
ENGINEERING
May 30, 2019
JoAnne Zulauf
City of Edmonds
121 5th Ave N
Edmonds, WA 98020
civil & structural
engineering & planning
RE: Permit Number: BLD20190116
Project Name: Aw - Single Family Residence
Project Address: 9527 190th PI SW
Dear Ms. Zulauf,
Itemized below is our response to the review comments dated March 21, 2019 for the above referenced
project. Our response appears in bold.
Engineering Review Division:
General
1. Submit ROW Permit Application form.
Form will be submitted by contractor prior to permit issuance.
2. Submit Side Sewer Permit Application form.
Form will be submitted by contractor prior to permit issuance.
3. Include construction sequence. Refer to sample on City website.
Construction sequence is included.
4. General Construction Notes.
a. Please change the WSDOT/APWA version to the current year.
b. Revise #19, a detention system is not proposed on this site.
Revised.
5. A Stormwater Covenant is required to be recorded against the property based on the proposed
stormwater facilities for the project. Please complete the covenant, including notarization and any
required exhibits and submit to the city. Ensure the stormwater covenant meets Snohomish County
Record Drawing requirements. The document must be complete but will not be recorded prior to
permit issuance. Prior to construction, final location of facilities are to be verified (by field inspection
and as built) and then the covenant will be recorded.
250 4th Avenue South, Suite 200
Edmonds, WA 98020
ph.425.778.8500 1 f.425.778.5536
www.cgengineering.com
Aw Residence
Comment Response
Stormwater covenant is provided.
6. Show haul routes.
Haul routes are now shown on vicinity map on C1.1.
7. Show all existing and proposed frontage improvements.
May 30, 2019
Page 2 of 4
The road widening associated with 1901h PI SW is now shown. A waiver request for the other
frontage improvements is ongoing.
8. Please demonstrate that 190th adjacent to the site is a minimum of 22 ft in width. The westbound
lane measured from the perceived center of the road should have a width of 11 ft. If it does not,
road widening would be required. For road widening, a cross sections through the ROW shall be
provided. Please also note the square footage of the total widening is considered new impervious
surface and should be accounted for in the sizing of the storm system.
Based on the site survey, there are portions of the lane that are less than 11' wide. We now show
a 1' sawcut and new asphalt to widen the lane where it is less than 11'. This new/replaced area
has been added to the stormwater sizing.
9. Add a note to the plans: Existing failing, damaged or non-ADA compliant frontage improvements
shall be removed and replaced as determined by the City Engineering Inspector.
Note added (41/C1.1).
10. Add note to plan: Utility patches shall be combined, and full width or half width overlay will be
required depending on the extent of disturbance. Where utility patches fall entirely within one
travel lane, the overlay shall extend to the centerline of roadway. Where utility patches extend into
both travel lanes then a full width overlay is required.
Note added (42/C1.1).
11. Add City of Edmonds standard details GU-400 and GU-410 referencing utility patches.
The details are provided on C3.2.
Water
1. Please call out the size of the water service line. Usually a 1-1/2" water service line to be installed
from the back of the meter to the house is required for a combination fire and domestic service.
The size is now called out.
2. Please label the pipe material and note tracer wire to be installed on the water service line.
Revised.
250 4th Avenue South, Suite 200
Edmonds, WA 98020
ph.425.778.8500 I f.425.778.5536
www.cgengineering.com
ENGINEERING
Aw Residence May 30, 2019
Comment Response Page 3 of 4
3. Please add a note: All final restoration shall be completed by the contractor not the City of
Edmonds.
Note added.
Sewer
1. Label pipe material and size. The sewer lateral (from the main to the property line shall be 6". Once
on private property the sewer may reduce to 4".
The sewer lines are labeled and sized as directed.
2. Please add a note that the 6" cleanout at the property line shall have a 12" cast iron lamphole cover
with %" hexbolts.
Note added on callout of the cleanout.
3. Provide invert elevations at the main, the cleanout at the property line and at the house so that a
minimum 2% slope and minimum 2' pipe coverage can be verified. If the slope of the pipe exceeds
20% the pipe will need to be anchored.
Invert elevations added.
4. If anew sewer lateral is proposed and the connection will be core drilled, show the connection at
the sewer main per City standards and with a Romac Inserta-tee. If the sewer connection will be cut
in, please show a wye to be installed.
The connection will be cut it. A wye is shown and called out.
Dry Utilities
5. Show all dry utilities and required utility separation. Please add a note that a minimum of 3'
separation is required between the dry utilities (power, gas, phone, cable, etc.) and sewer, water,
and storm and 5' from any City main lines.
Dry utilities are now shown on plan. See note 2/0.1.
Driveway Waiver
In reviewing the sidewalk waiver request, there is not enough information for us to determine the
situation meets the criteria for waiver. The two criteria are economically unfeasible and practically
impossible. To meet an economically unfeasible criteria, actual monetary amounts need to be spelled
out. Comparison between cost of project with sidewalk construction and without sidewalk construction
needs to be discussed. Included can be the additional cost of designing stormwater for a category 2 site
rather than a category 1 site. To meet practically impossible there needs to be more of a reason than
the steep slope alone. Would you need to build retaining walls to support the sidewalk? Any type of
over the top construction necessary should be included here. The road alignment doesn't come in to this
as the sidewalks would be required along the existing road. As far as the telephone pole, developers
C �
ENGINEERING
250 4th Avenue South, Suite 200
Edmonds, WA 98020
ph.425.778.8500 1 f.425.778.5536
www.cgengineering.com
Aw Residence May 30, 2019
Comment Response Page 4 of 4
move them behind the sidewalk all the time so maybe look at where the pole could be moved to
accommodate a sidewalk. Keep the arguments for each criteria separate.
The contractor is currently working on a cost estimate to supplement the "economically unfeasible"
part of the waiver request. The "practically impossible" part will be more thoroughly addressed with
the next submittal of the waiver request.
If you have any questions or comments regarding the responses to this review, please do not hesitate to
call.
Sincerely,
CG Engineering
Jared Underbrink, PE
Project Manager
250 4th Avenue South, Suite 200
Edmonds, WA 98020
C C ph.425.778.8500 1 f.425.778.5536
ENGINEERING www.cgenglneering.com