Ports & Dredging
HME has DB Seahorse on Redwood City Channel
Port of Redwood City dredging archive; local method context, not verified FY26 HME progress
HME Construction is dredging Redwood City Channel with DB Seahorse, two dump scows and two tugs. The Coast Guard's July notice puts the work on a 24/7 schedule and names SF-11 and SF-DODS as the placement routes.
The contractor and plant are on the record
The Coast Guard notice confirms HME, DB Seahorse, two dump scows, tug Douglas, an ocean-going tug, the two placement sites and 24/7 operations from 8 to 30 July. USACE's separate boater notice names HME but uses an on-or-after-15-July start and tentative early-November completion. The 200,000-CY figure comes from the March district plan and remains an estimate rather than a final paid quantity.
Two disposal routes shape the scow cycle
USACE's March programme estimated about 200,000 cubic yards of clamshell dredging. Reaches 1 through 4A route to the Alcatraz Island site, while the outer reaches use the ocean site. That split affects tow distance, scow turnaround and production across the only commercial deep-draft harbor in southern San Francisco Bay.
Evidence conclusion
Two official notices show different work windows
The Coast Guard notice is the clearest field record: it names the plant, route and a 8-30 July operating window. USACE's boater notice starts on or after 15 July and runs tentatively to early November. We are keeping those dates separate. The next notice should show whether the July window covered an initial reach or whether the wider programme has changed.
Outstanding evidence
- Navigation notice issued after 30 July
- Progress by channel reach and scow route
- Revised early-November completion outlook
- Hydrographic progress and post-dredge surveys
- Accepted cubic yards and contract closeout
Subject index
Related subjects
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Sources used 4
- Local Notice to Mariners 11-26: Redwood City clamshell dredging U.S. Coast Guard Navigation Center, 1 July 2026
- Notice to recreational boaters: Redwood City channel maintenance dredging U.S. Army Corps of Engineers, San Francisco District, Current FY26 notice reviewed 21 July 2026
- FY26 Redwood City Channel maintenance dredging award W912P726CA017 SAM.gov / U.S. Army Corps of Engineers, Awarded 24 June 2026
- FY 2026 dredging schedule U.S. Army Corps of Engineers, San Francisco District, Updated 9 March 2026