# Port of Tacoma #062026-1038

Tru-Grit Site Remedial Dredging, Contaminated-Material Handling, and Cover Placement

**Posted:** October 16, 2026
**Respond By:** October 28, 2026
**Identifier:** 062026-1038
**NAICS:** 562910, 237990, 488390

The Port of Tacoma is seeking bids for remedial dredging and contaminated-material handling at the Tru-Grit site in Tacoma, Washington.
- **Buyer and location:** Port of Tacoma; Tru-Grit site, Parcel 115, Tacoma, Washington.
- **Requested work:** In-water/mechanical dredging, transloading and rehandling, onshore material handling, dewatering or solidification, hauling dredged material to an approved disposal facility, and placement of post-dredge residual-management cover and slope backfill.
  - The solicitation summary estimates approximately **13,500 in-place cubic yards** of dredging, with contingency for re-dredging, and approximately **6,500 tons** of sandy cover and backfill. These are planning estimates.
  - A separate interim-action plan describes Lower Slope Areas A and B: approximately **8,490 cubic yards** of sediment removal, potentially up to **12,699 cubic yards** with overdredging, followed by at least a 6-inch clean cover and backfill to a stable slope of 3H:1V or shallower.
- **Notable requirements:** Protect water quality; capture, contain, treat, sample, and test potentially contaminated dewatering water and stormwater; use approved treatment and disposal methods; conduct dredging and post-placement monitoring, confirmation sampling, reporting, and contingency response. Related environmental documents also describe three years of long-term monitoring and applicable habitat-protection measures for port maintenance activities.
- **Agencies and stakeholders named:** Washington State Department of Ecology, including its Southwest Region Office, Water Quality Program; U.S. Army Corps of Engineers, Seattle District; NOAA Fisheries/National Marine Fisheries Service; U.S. Environmental Protection Agency; and the Puyallup Tribe. The Washington State Department of Ecology’s Administrative Order 23535 and Construction Stormwater General Permit WAR314131 are identified in related project material.
- **OEMs and vendors:** No product manufacturers, OEMs, named contractors, or prospective bidders are identified. Work is service-based, with no product part numbers.
- **Estimated value:** $6 million–$10 million, plus Washington State sales tax.

### Description

The Port of Tacoma is soliciting bids for remedial work at Tru-Grit, Parcel 115. The scope includes in-water dredging, transloading and rehandling, onshore material handling, dewatering, hauling material to a disposal site, and placement of post-dredge residual management cover. The estimated cost range is $6,000,000 to $10,000,000, plus Washington State Sales Tax (WSST). The site visit is not mandatory; bids are due October 28, 2026, at 2:00 PM UTC.

[View original listing](https://www.portoftacoma.com/business/contracting/procurement/tru-grit-remedial-action-parcel-115-2026)