Grand Island Mitigation Site

Estimated Value: $17,500,000
Open New 19 days left CaliforniaInformation Technologyrfi
Oct 8, 2026
Oct 27, 2026 6:00 PM
Information Technology
rfi
562910
small business
AI Summary
This bid is for a large-scale environmental restoration project at Grand Island, California, involving habitat creation, excavation, revegetation, and bank stabilization to mitigate impacts from the American River Common Features project.
Line Items
ItemQtyUnitEst. Unit PriceEst. TotalCategory
Site preparation and mobilization for Grand Island Mitigation Project 1 lot $1,000,000.00 $1,000,000.00 Construction
Excavation to establish tidal channel network and habitat bowl (108,000 cubic yards) 108000 cubic yard $40.00 $4,320,000.00 Construction
Breaching existing berm to connect site to Steamboat Slough 1 each $500,000.00 $500,000.00 Construction
On-site construction of islands and peninsulas using excavated material 1 lot $1,500,000.00 $1,500,000.00 Construction
Placement of excess excavated material in designated uncompacted fill areas 1 lot $750,000.00 $750,000.00 Construction
Off-site hauling of excess material by barge (if settlement issues arise) 1 lot $1,000,000.00 $1,000,000.00 Transportation
Revegetation plan implementation (water-tolerant trees, shrubs, later-successional trees, native grasses) 84 acre $25,000.00 $2,100,000.00 Construction
Transplanting of elderberry shrubs for Valley Elderberry Longhorn Beetle protection 1 lot $300,000.00 $300,000.00 Construction
Irrigation and maintenance of transplanted elderberry shrubs (duration of contract) 665 day $500.00 $332,500.00 Facilities
Hybrid bioengineered slope stabilization (quarry stone riprap toe, erosion control fabrics, live willow cuttings) 1 lot $1,200,000.00 $1,200,000.00 Construction
Installation and removal of temporary 250-foot steel sheet pile cofferdam 1 each $1,500,000.00 $1,500,000.00 Construction
Environmental compliance and monitoring (in-water work windows, etc.) 1 lot $1,000,000.00 $1,000,000.00 Professional Services
Project management and overhead for 665 calendar days 665 day $2,000.00 $1,330,000.00 Professional Services
Estimated Bid Value$17,500,000.00

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