Lower Duwamish Waterway Construction during the week of March 3, 2025

#1210

South Park Neighborhood Association (SPNA)

monthly meetings, ?2nd Tuesday 6-7:30:

Duwamish River Community Hub

8600 14th Ave S

mailing address:

8201 10th Ave. S.

Seattle, WA 98108

---------- Forwarded message ---------
From: LDWG <info@...>
Date: Fri, Feb 28, 2025 at 4:26?PM
Subject: Lower Duwamish Waterway Construction during the week of March 3, 2025
To: <spnaseattle@...>

/ / /

Cleanup Construction Activities

All construction is done in Sediment Management Areas (SMAs) 2A, 2B, 3, 4, 6, 8, 11B, and C1 including installation of the replacement tribal fishing pile in SMA 6. We are now focused on completing work for the SMA 9 sheet pile wall (see photo below) followed by construction demobilization. Please see the map of cleanup areas linked below.?

Some work the week of March 3 will be done outside normal hours (7 a.m. to 7 p.m. Monday through Friday and 9 a.m. to 7 p.m. on Saturdays). The work schedule for the sheet piles at SMA 9 (on shore only) is affected by the tides. The schedule will vary but work at SMA 9 may extend to midnight. ?

For questions or concerns, you can reach our team at info@... or 1-888-561-LDWG (1-888-561-5394). Visit for the most up-to-date information.??

Weekly Environmental and Community Report for the week of February 17

You may view the weekly report and other previous weekly reports by clicking the link below.??

What to expect during the week of March 3

The remaining construction activity is to finish work for the SMA 9 sheet pile wall. This includes working from shoreline property, where the contractor will fill the space between the original and new sheet pile walls with concrete. The concrete placement may extend beyond the normal hours because it must be done during low tide. ??

Construction Season 1 wrap-up activities

In-water cleanup activities are complete. Demobilization of the construction equipment will occur in March. Demobilization activities are expected to occur at the Contractor’s (Pacific Pile and Marine) waterfront property along South Riverside Drive. Demobilization will include removing equipment and supplies from the barges.?

Preparing for the finishing work of SMA 9 bulkhead wall system (sheet pile wall) with the installation of concrete reinforcing rebar (Geosyntec Consultants, week of February 24, 2025).?