2405_001.pdf - LEGACYKarl Schmidt Architecture, PLLC
2707 E Madison St. Seattle, WA 98112 1 P 206-323-22221 Cell 206-948-9827 1 email karl@k-s-arch.com
Correction Cycle Letter - Engineering
Date: September 20, 2019
RESU13
Project # BLD201190705 SEP 2 0 2019
Address: 18606 Sound View Place
BUILDING DEPARTMEN,
CITY OF EDMONDS
1. Correction Cycle - Engineering
1. The plans indicate that all downspouts and scuppers will tie into the existing tightfine. From City of
Edmonds street files, it appears that this existing fightline is the 6" PVC roof drain tightline that connects
directly into CB #2 of the existing detention system. The existing detention system was designed for a
specific capacity, for which any new impervious surface area is not accounted. For this reason, the City will
not permit tying into existing stormwater system. Please modify plans accordingly, and note where the
downspouts will discharge for the proposed deck.
- Per previous conversations with the applicant, the consulted geotechnical engineer did not
recommend discharging to the slope. Please note the City may not approve downspouts to
splashblocks given site conditions.
Response: Per previous conversations with Engineering Technician Natalie Griggs and Engineering
Program Manager Jeanie McConnell, all new downspouts and scuppers may bypass the existing
detention system and tie into the 8 inch existing conveyance pipe on the adjacent property as shown
in the revised site plan. This new infrastructure would be located within the existing drainage
easement (see attached) that runs through all adjacent properties that the drainage system serves.
2. If an outfall to BNSF is being utilized or created to manage runoff from the deck, please provide written
approval from BNSF for the proposed drainage associated with this project
Response: The stormwater drainage infrastructure that we propose to utilize is already existing and
would not require any alterations or result in any changes to the condition on BNSF property. After
numerous attempts, over several months, to obtain the requested approval from BNSF without an
answer, it is our position that if the city of Edmonds maintains that BNSF approval is necessary, the
city of Edmonds take the lead on pursuing official response from BNSF.
3. The sewer main and two sewerlstorm easements are not accurately depicted on the site plan.
- The northwestern easement (AFN #1964451, see attached) extends 30 feet toward the existing
house. From the site plan, it appears that the proposed deck would be constructed immediately
adjacent or directly above the sewer easement. The City does not permit structures to be
constructed within 10 feet of public utilities or within public easements.
2707 E Madison St.
Seattle, WA 98112 9/2012019
206 323 2222 office
206 948 9827 cell q l;.7
Karl Schmidt Architecture, PLLC
2707 E Madison St. Seattle, WA 98112 1 P 206-323-22221 Cell 206-948-9827 1 email karl@k-s-arch.com
- The southwestern easement (AFN #1964619, see attached) extends 10 feet toward the existing
house. Please show this easement on the plans.
- Please provide accurate locations for the sewer main (and associated manholes) and the
sewerlstorm easements on the site plan.
Response: Per conversations with Engineering Technician Natalie Griggs and Engineering Program
Manager Jeanie McConnell, it is unclear where these easements are located in related to the project.
The location of easements will be updated on the site plan upon receiving a response from the city
of Edmonds regarding their location.
End of Responses for Correction Notice #1 — Engineering
Regards.
Karl Schmidt, AIA
Karl Schmidt Architecture, PLLC
2707 E Madison St.
Seattle, WA 98112 9/20/2019
206 323 2222 office -2-
206 948 9827 cell