Har892022C 26-09 (Hardin)

The Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality is requesting sealed bids on a Tile Zone nutrient reduction wetland construction project in Hardin County (Project ID: Har892022C, Bid Number: 26-09), with bids due August 26, 2026 at 3:00 p.m. CDT and a pre-bid conference on August 13, 2026 at 9:00 a.m. at the Hardin County ISU Extension Office in Iowa Falls.

The scope encompasses selective clearing, drain tile investigation and removal, excavation, grading, reinforced concrete pipe and high-density polyethylene dual-wall pipe installation with corrective metal pipe tile outlets, a modified SW-302 concrete water control structure, and seeding across approximately 6.8 acres. The work includes approximately 17,100 cubic yards of earthwork, 2,800 linear feet of drain tile investigation and removal, 79 linear feet of 36-inch-diameter RCP, 3,244 linear feet of HDPE corrugated profile wall pipe, and a stoplog storage structure. Construction must commence within 7 days of the preconstruction meeting unless otherwise mutually agreed upon, with completion by June 15, 2027; buffer seeding must be completed by June 30, 2027 and structure seeding by September 15, 2027.

The estimated construction cost range is $200,000 to $300,000. Bidders must submit a bid bond equal to 10% of the bid amount and a Performance/Payment Bond equal to 100% of the contract price upon award. All bidders must be registered with the Iowa Department of Inspections, Appeals & Licensing prior to contract execution. Non-Iowa corporations must provide proof of authorization from the Iowa Secretary of State to do business in Iowa prior to contract execution.

Written questions regarding plans and specifications must be directed to Dan Jensen, P.E., of Shive-Hattery (djensen@shive-hattery.com) with copies to Tracy Blocker (tracy.blocker@iowaagriculture.gov) by 3:00 p.m. on August 20, 2026 for inclusion in a final addendum. Prospective bidders must register on the plan holders list by contacting Tracy Blocker to receive meeting minutes, addenda, and updated plan holders lists. Sealed bids must be submitted through the Iowa Management of Procurement and Contracts System (IMPACS) with public bid opening via Microsoft Teams.