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  5. ›Environmental Trust Department, Owhi Flats 2026

Confederated Tribes of the Colville Reservation·Washington

Environmental Trust Department, Owhi Flats 2026

Closes 10/29/2026$250k – $500kInvitation for Bid
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Description

The Confederated Tribes of the Colville Reservation are seeking a qualified contractor to de‑commission six road segments (totaling 17,393 ft) within the Owhi Flats watershed, install two tank traps, and perform extensive riparian restoration. The work includes removal of culverts and non‑natural objects, re‑shaping of roadbeds, placement of straw mulch and woody debris, and implementation of erosion, sediment, and dust controls in accordance with tribal and federal BMPs. Bidders must provide detailed price break‑outs, proof of $1 M liability insurance, and demonstrate compliance with Tribal Employment Rights Ordinance (TERO). Preference is given to Indian‑owned firms, but non‑Indian firms may also submit with a 5 % TERO fee.

Attached files

Contact

Tina Bell(Environmental Trust Administrative Assistant)

[email protected]

(509) 634-2411

Key dates

Opened
10/15/2026
Closes
10/29/2026

Last updated

Details

Type
Invitation for Bid
Industry
Construction
NAICS
237310

Budget estimate

$250,000 – $500,000

The solicitation does not disclose an estimated contract value. Based on similar watershed restoration contracts in Washington that involve 17,000 ft of road removal, installation of tank traps, and extensive mulching/vegetation work, a reasonable ballpark is $250k–$500k. Costs are driven by heavy‑equipment mobilization, labor for road‑bed reshaping, material (straw mulch, woody debris), and disposal of removed infrastructure. Indian‑owned firms may receive a preference premium, while non‑Indian firms must add the 5 % TERO fee, slightly raising the effective price.

AI estimate from the solicitation

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