E - Schedule of Prices.pdf

This is a Schedule of Prices document for Bid No. 26-16, a nutrient reduction wetland project located in Section 25, Township 88 North, Range 07 West, Buchanan County, Iowa, administered by the State of Iowa. The project involves selective clearing, excavation, grading, tied concrete block mat installation, tile installation, water control structure, riprap application, and seeding across approximately 22,900 cubic yards of earthwork. Key bid line items include site stripping and preparation (821 cubic yards), structure and channel seeding (1.1 acres), buffer seeding (4.9 acres), mobilization and demobilization (1 lump sum), drain tile investigation and removal (2,169 linear feet), general excavation (15,291 cubic yards), general dam earthfill (7,611 cubic yards), various pipe installations totaling 1,412 linear feet, a water control structure (1 unit), erosion stone (30.5 tons), tied concrete block mat (2,500 square feet), synthetic underlayment (800 square feet), and crop damage allowance. Construction must be completed by November 15, 2027, with seeding completion by December 15, 2027, following stipulated seeding periods in the Technical Specifications. Bids are to be submitted exclusively through the online Iowa Management of Procurement & Contracts System (IMPACS).

The estimated construction cost range for this project is $180,000 to $200,000. Bidders must enter a unit price for each line item, with the bid tabulation to be adjusted based on the engineer's estimated quantities. The document specifies that IMPACS will not accept a bid amount less than one unit and establishes the total base bid as the summation of all line item costs. All bidding activity and contract administration will be conducted through the IMPACS platform accessible at https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa.