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Ohio Department of Natural Resources·Ohio

Cowan Lake Dam Improvements

Closes in 4 days$1M – $2.5MInvitation for BidLogin required
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Description

The Ohio Department of Natural Resources is seeking a qualified contractor to execute a comprehensive dam‑improvement project at Cowan Lake State Park. The work includes demolition and replacement of the primary spillway and chute, concrete surface repairs, upstream shoreline protection, embankment channel repairs, installation of filter blankets and toe drains, scour‑hole erosion mitigation, construction of a lake‑drain canopy structure, armor stone placement, parking and drive improvements, and associated site grading, drainage, and erosion‑control measures. The contract is a single‑award, general‑contract package with numerous optional alternates and a $25,000 allowance for a boat‑ramp extension. The project must comply with Ohio domestic‑steel requirements, prevailing‑wage rules, EDGE Business Development participation (5 % goal), and executive‑order prohibitions on offshore services and Russian entities. • General‑contract value ≈ $19.7 M; total potential value with alternates ≈ $22‑23 M. • Contract period 730 calendar days; Notice‑to‑Proceed 31 Dec 2026; final completion 31 Dec 2028. • Bids submitted electronically via BidExpress; mandatory bid‑guaranty (10 % of base bid) plus original guaranty within 3 business days. • Pre‑bid meeting 16 Oct 2026 (optional); bid opening 28 Oct 2026 (may be extended) with final deadline 6 Nov 2026.

Attached files

Contact

Stephen Walker(Architect/Engineer)

[email protected]

(517) 220-7014

Key dates

Opened
10/2/2026
Pre-bid meeting
10/16/2026
Closes
11/6/2026
Projected award
12/31/2026
Duration
2 years

Last updated

Details

Type
Invitation for Bid
Industry
Construction
NAICS
237120
Solicitation №
DNR-250076

Budget estimate

$1,000,000 – $2,500,000

Based on the line‑item estimates provided (≈ $22.5 M total) and typical contractor profit margins of 5‑10 % for large civil‑engineering contracts, the net earnings for the winning firm are likely to fall between $1 M and $2.5 M. The range reflects potential scope changes via alternates, cost‑plus vs. fixed‑price structure, and compliance costs (domestic steel, EDGE participation, insurance).

AI estimate from the solicitation

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