3301 SEAWAY BLVD WHOLE SITE 2025-10-30

Ms. Sabrina Fandler City of Everett Public Works Department Engineering/Permit Services -4-/ June 23, 2016 grading shown on the southeast side of the pond is not feasible and will either result in grading within the NGPE or a smaller than required pond. Response: The grading for the pond has been revised to keep ail pond grading outside of the NGPE line as required. iii. The placement of the MWS units downstream of the detention pond control on this site is unacceptable due to the lack of elevation difference between the primary outlets and the invert elevation of the downstream drainage system. As located, the MWS units will create backwater effects that will reduce the effective head on the primary orifices of the flow control structures and unacceptably alter the stage - discharge relationship of the restrictor units meaning that the pond will overflow more often than is allowable. Response: The design has been revised and the MWS unit is now located upstream of the pond. iv. The off -site analysis must also address overflows to the Seaway Blvd drainage system, from the point of entry to the discharge to Powder Mill Creek Response: The storm drainage report has been revised to included additional analysis as requested. c. Please seethe highlighted portions of the attached City's PAD for SEPA16-006 to identify additional information required to address drainage -related requirements for this project. Res onse: Comment acknowledged. The plans have been revised accordingly. 3. The comments below were generated from this project's Traffic Reviewer. If you have any questions regarding these comments, please contact Michael Brick with the City of Everett Public Works Department (425-257-7790 or MBrick@everettwa.gov). a. Per the Planned Action Determination for SEPA16-006, Other Requirements Section for Public Works, item #15, the maximum driveway width shall not exceed 35'. In order for this larger width to be approved, please submit an engineering analysis for justification to support a wider driveway. An AutoTurn analysis or similar, showing both the 35' driveway situation as inadequate and the proposed wider driveway width should be submitted with your revised plans, and should be accompanied by a brief narrative explaining both situations. Response: An AutoTurn exhibit has b en prepared provide justifi ationnffor the need for wider driveways for the project. GUI .�cl ? T ar, b. Upgrade curb ramp and companion ramp at intersection of Seaway Blvd and 36th Ave W to meet current ADA standards. sponse: Notes have been added to upgrade the ADA ramps as requested.