20170118160146.pdfENGINEERING
January 11, 2017
civil & structural
engineering & planning
Jeannie McConnell, Engineering Program Manager
City of Edmonds
Second Floor City Hall
121 5t' Ave N
Edmonds, WA 98020
RE: Application #: bId20161097
Project Name: Miller Residence — Complete Work - Garage
Project Address: 110 Pine Street
Dear Ms. McConnell,
iM�l7
61* OF e
Itemized below is our response to the review comments in the October 14, 2016 letter to Albert Cohen
for the above referenced project. Our response appears in bold.
1. The architectural plans show a bathroom within the garage structure. Revise civil plans to show
location of water, sewer and power utilities serving the garage.
It is thought that these services are being tied off from the existing residence, but they were not
shown in the survey or utility locate. We have added a note indicating that the contractor should
field locate and report to CG Engineering and City of Edmonds.
2. The existing western driveway and curb cut has not been approved and is required to be
removed per WSDOT. Revise plans as follows:
a. Indicate removal of the driveway curb cut and replacement with standard curb/gutter and
sidewalk. Include appropriate standard details.
b. Indicate removal of the existing western asphalt drive.
c. Update impervious surface calculations accordingly.
Plans updated as noted
3. WSDOT has also indicated in past correspondence that a chain link fence previously removed
for the construction of the driveway shall be replaced. Any deviation from this requirement
should be approved by WSDOT.
6' fence added, see C3.1 plan
4. Is the impervious surface area from the existing driveway included in the impervious surface
calculations? If so, how will the flows be captured and directed to the storm system?
250 4th Avenue South, Suite 200
Edmonds, WA 98020
ph.425.778.8500 1 f.425.778.5536
www.cgengineering.com
Miller Residence 16211.20 January 12, 2017
Comment Response #1 Page 2 of 2
Slope arrows and an additional yard drain added. Portions of existing brick from previous
submittal have been replaced
5. Revise Plan Notes, Note 1 as needed to be consistent with comment number 2 above.
Plan notes revised.
6. Clearly indicate on the plans that the "area drains" called out will be constructed as depicted in
Detail 2 — Roof Runoff Infiltration Trench. Callout driveway slope on the plans. Approval was
previously given by the City to allow for a slope in excess of 14% and up to 20%.
Slope is 13.3% and is now indicated on the C3.1 plan.
7. Revise both infiltration trench details to indicate 1 %" —1 %" (preferably 1'/" — 2 %") instead of
1 %" — %" washed rock.
Callout revised
8. The stormwater site plan report indicates "The two existing driveways shall be used to access
the site". The western most driveway is not an approved driveway.
West driveway removed.
If you have any questions or comments regarding the responses to this review please do not hesitate to
call.
Sincerely,
CG Engineering
C. Chevy Chase, PE,
Principal
250 4th Avenue South, Suite 200
Edmonds, WA 98020
ENGINEERING ph.425.778.8500 1 f.425.778.5536
www.cgengineeri ng.com