Rehab In Cathlamet

The Department of the Army, Army Corps of Engineers, Northwestern Division, Portland District has a requirement to enhance and connect enrockments at various sections of the Miller-Rice pile dike system in Wahkiakum County, WA.

Solicitation Summary

The Department of the Army, Army Corps of Engineers, Northwestern Division, Portland District has a requirement to enhance and connect enrockments at various sections of the Miller-Rice pile dike system in Wahkiakum County, WA.

Solicitation in a Nutshell

Item

Details
Agency Department of the Army, Army Corps of Engineers, Northwestern Division, Portland District
Solicitation Number PANNWD25P0052892
Status Pre-RFP
Solicitation Date 01/2026 (Estimate)
Award Date 05/2026 (Estimate)
Contract Ceiling Value $100,000,000
Competition Type Undetermined
Type of Award Other
Primary Requirement  Other Construction Services
Duration TBD
Contract Type  Firm Fixed Price
No. of Expected Awards N/A
NAICS Code(s):
237990

Other Heavy and Civil Engineering Construction
Size Standard: $45.0 million annual receipts except $37.0 million annual receipts for Dredging and Surface Cleanup Activities
Place of Performance:
  • Cathlamet, Washington, United States
Opportunity Website: https://sam.gov/opp/e51eed9fc6cd44b487ed123181d75cb4/view

Background

N/A

Requirements

  • Enhance and connect enrockments of existing PD 23.81 and PD 23.71.
  • Repair and enhance PD 24.63. The enhanced enrockment centerline will be approximately 10 feet downstream (west) of the existing pile dike piles centerline. This placement allows for enhanced enrockment construction without the need for removal of existing piles. The offset placement of the enhanced enrockment may also allow for phased placement over time as the existing pile dike continues to degrade. Furthermore, locating the enhanced enrockment slightly downstream eliminates the need for removal of large amounts of debris on the upstream side of the existing pile dike.
  • For the majority of the dike (Sta 1+00 to Sta 8+00), the enhanced enrockment crest will be raised from an existing elevation of approximately El. -15 feet NAVD88 to El. -5 feet NAVD88. For the northern (nearshore) portion of the dike, from Sta. 1+00 to Sta. 0+25 the enhanced enrockment crest will slope downward from El. -5 feet NAVD88 to El. -12 feet NAVD88, from Sta 0+25 to 0+04 the enhanced enrockment crest will have an El. of -12 feet NAVD88. The northern (nearshore) end of the enhanced enrockment will terminate in 14 foot wide by 4-foot-thick rock scour apron. For the southern (offshore) 480 feet of the dike (Sta. 8+00 to 12+80), the crest will slope downward from El. -5 feet NAVD88 to El. -16 feet NAVD88 at the offshore end where it will tie into the existing enrockment at a 2H:1V slope. The enhanced enrockment will have an 8- foot crest width and 1.5H:1V side slopes.
  • The design includes construction of 8 new hazard marker piles to designate the locations of the submerged enrockments.

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