D - Plans.pdf

This is a project plans document for a nutrient reduction wetland construction project in Buchanan County, Iowa, under contract opportunity 26-16 Buc880725C. The project encompasses selective clearing, excavation, grading, tied concrete block mat installation, tile installation, water control structure installation, riprap placement, and seeding across approximately 22,900 cubic yards of earthwork. Specific deliverables include installation of 2,500 square feet of tied concrete block mat, 1,270 linear feet of tile, 30.5 tons of erosion stone, and seeding of 6 acres. The construction phase must be completed by November 15, 2027, with seeding completion required by December 15, 2027, subject to technical specification requirements for structure and buffer seedings.

The estimated construction cost range for this project is $180,000 to $200,000. The document serves as the technical plans component of the bidding package, providing detailed specifications and design information necessary for contractors to prepare accurate cost proposals and execution schedules.