APPROVED PEER - VAULT REVIEW MEMO_sealedDAVID EVANS
ANDASSOCIATES INC.
DATE: January 3, 2024
TO: Jennifer Lambert
City of Edmonds, Public Works Department, Engineering Division
Q 121 5th Avenue North
Edmonds, WA 98020 P�� SCy6"
Z F WA S
FROM: Mike Schumann, PE � ,�� ° ,,ti'tic92
°
SUBJECT: Iron Vista — Detention Vault Review CO Z
1.` PROJECT: City of Edmonds, Structural On -Call 84
OCOED0000-001711 q, �Fc / S2
CC: Patrick D. Montemerlo, PE ASS/oNAL ENG 01/03/2024
WAs requested by the City of Edmonds, David Evans and Associates, Inc. (DEA) reviewed the vault design for the
Iron Vista Detention Vault project. The resubmittal of the calculations and plans were provided by Sound
Structural Solutions and the following review is for both the calculations and plans. The responses as detailed in
the resubmittal are satisfactory with only the maintenance comment below.
Sheet 2, specifically details RCT1 and RCT2, lack a concrete lid. This poses a risk of debris accumulation within
the vault as trucks pass over the grate. To mitigate this issue, we strongly advise incorporating a concrete lip
around all grates to minimize the deposition of debris into the vault.
Sincerely,
Mike Schumann, PE
Attachments/Enclosures: None
File Path: \\deainc.com\files\PROJECT\C\COED00001711\0600INFO\ES\axvi\iron vista vault submittals\Revised Submittal\Vault Resubmittal Memo.docx
Per email from DEA dated Jan 4, 2024,
solid lids or concrete collar could be
used to prevent debris from entering
detention vault. Civil plans indicate
asphalt thickened edge between
landscaping and vault grates, which
addresses this issue.
14432 SE Eastgate Way Suite 400 Bellevue Washington 98007 Telephone: 425.519.6500 Facsimile: 425.519.5361