Skunk River Riprap Projects, Sugema Wildlife Unit, Keokuk County

The Iowa Department of Natural Resources is requesting bids for Class "B" riprap placement totaling 970 tons at two locations on the Skunk River within the Sugema Wildlife Unit in Keokuk County, with bids due June 25, 2026 at 3:00 PM.

The scope comprises placement of 970 tons of Class "B" riprap and 873 square yards of engineering fabric across two sites: South Skunk Access (350 tons riprap, 317 square yards fabric, 35 tons roadstone) and Rubio Access (620 tons riprap, 556 square yards fabric, 55 tons roadstone). Work must be completed by October 31, 2026, commencing within a reasonable period following a preconstruction conference. Iowa products are given procurement preference. The contractor must obtain a NPDES Stormwater Discharge Permit for construction operations and provide a one-year warranty covering defects in materials and workmanship.

A performance bond equal to at least 100% of the contract price is required. Contractors must maintain minimum liability insurance of $250,000 per person and $250,000 per occurrence for property damage, with $500,000 aggregate coverage, and register with the Iowa Department of Revenue for sales and use tax compliance. Liquidated damages are assessed at $1,000 per calendar day for work remaining incomplete beyond the October 31 deadline. Payment is made on a unit-price basis for estimated quantities, with final payment calculated on actual units incorporated; unit prices prevail in case of discrepancies with bid totals. The Department reserves the right to withhold up to 3% of payments and reserves the unconditional right not to award.

Award will go to the lowest responsive and responsible bidder. Bids must be submitted electronically to constructionbids@dnr.iowa.gov. The bid package and plans are available as attachments.