Sunset Ave - 620_Echelbarger SFR_BLD20080408_2.pdf
City of Edmonds
TH
121 5 AVENUE NORTH EDMONDS, WA 98020 • (425) 771-0220 FAX(425) 771-0221
Website: www.ci.edmonds.wa.us
PUBLIC WORKS DEPARTMENT
Engineering Division
Engineering Plan Review Comments
Application :Date:
# BLD20080408 7/10/08
Project Name/Address:
Echelbarger SFR / 620 Sunset Avenue
Contact Person/Address, Fax or E-mail:
Mike Echelbarger / MIKE@ECHELBAREGER.COM
Reviewer: Edward Sibrel Division:Engineering
During review of the civil drawings for the proposed subdivision it was found that the following
information, corrections, or clarifications will need to be addressed. Please resubmit 3 copies of the
revised civil drawings and associated documents with a written response to each item to an Engineering
Technician. Please contact me at 425-771-0220 or by e-mail at sibrel@ci.edmonds.wa.us if you have
specific questions regarding these plan corrections.
The following are additional engineering comments regarding your project clarifying the previous
comments of 6/25/08 and requesting additional information.
SEWER PLAN__________________________________
1.Mike Wallace of Reid Middleton is accomplishing the peer review for your sewer plan. He has asked
the following questions / concerns during their review:
a. The manhole on the north side of the home is directly adjacent to the proposed structure. This will introduce
loading onto the manhole.
b. It appears that foundation (assuming a spread footing) will be in conflict with the manhole. There is also a
rockery adjacent to the manhole that also conflicts with the manhole, we are not sure if the wall is supporting a cut or
fill?
c. The concrete box connection to the manhole is not detailed.
STORM PLAN__________________________________
The original engineering comments noted: “Since the drainage is directly discharged rather than detained,
there will be a net increase of runoff volume to the BNSF drainage ditch prior to discharge to Puget Sound.
An approval letter from BNSF will be required for this. Please include such letter in your next submittal.”
Applicant’s Response:
Show me where and if I am wrong in my analysis. Perhaps I have simply misread this
as I am adamantly opposed to this concept as I understand what he is saying. I do not believe there is any net
increase to runoff. I have done this before in other jurisdictions and in any case, “my storm water” will be well
ahead of 99% of the other storm in the basin. If we used retention/detention, then we would increase the peak
flow as our storm water will be “mixed” with the entire basins outflow. As proposed, our storm water will be out of
the system before most storm water gets to the outflow. Please check with the City if you have any questions.
Don’t bother to contact BNSF.
DATE E-MAILED 7/10/08 PAGE(s)
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City of Edmonds
TH
121 5 AVENUE NORTH EDMONDS, WA 98020 • (425) 771-0220 FAX(425) 771-0221
Website: www.ci.edmonds.wa.us
PUBLIC WORKS DEPARTMENT
Engineering Division
Engineering Plan Review Comments
City’s Response to Applicant: The determination for the BNSF requirement was arrived at by Don
Fiene, the Stormwater Consulting Engineer. Obtaining permission from the railroad to directly
discharge into their right-of-way has been a typical requirement of the city whenever development
shows an increase in storm discharge. If, as you indicate, there is no net increase in discharge, you may
show how this reasoning was arrived at with your next submittal, and Don will review it.
FRONTAGE IMPROVEMENTS / DETAILS_________
The original engineering comments noted: “Installing the storm line will require the demo of the driveway
cut, portions of the existing sidewalk and curb and gutter, as well as asphalt saw cuts, CB installation, and
trench backfilling within the City ROW. Include with the civils all details needed to accomplish the work.
City of Edmonds Standard Details may be found online at:
http://www.ci.edmonds.wa.us/engr_toc_std_details.stm. Also include details covering required erosion
control, side sewer installation, and water service line installation with the plans.”
Applicant’s Response:
I can’t believe he is going to ask me to install catch basins for others as a part of this line
extension that I volunteered to do in the first place. My neighbor simply has a hole filled with drain rock. I must have
read it wrong. Or if they simply want one at our new driveway cut…that is reasonable.
City’s Response to Applicant: To clarify, there is no requirement to install new catch basins beyond the
number already proposed. The last sentence in the Applicant’s Response is the correct assumption.
DATE E-MAILED 7/10/08 PAGE(s)
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