Description
The Iowa Department of Agriculture and Land Stewardship is soliciting sealed bids for the reclamation of two abandoned mine land (AML) sites (Noah AML IA‑113 and Wilcox East AML IA‑363) in Marion County. The contract includes extensive earthwork, site clearing, terrace construction, riprap placement, concrete mat installation, fencing, and permanent native and wetland seeding. The project must start within 14 days of a Notice‑to‑Proceed and be completed by 31 December 2027, with an estimated construction cost of $4.8 M‑$5.3 M. Bidders must submit through the IMPACS system, provide a 10 % bid security, and may attend an optional pre‑bid conference on 28 August 2026.
• Location: Sections 4, 5, 8 & 9, Township 74 N, Range 18 W, Marion County, IA (≈3.5 mi north of Marysville).
• Scope of work: impoundment discharge, clearing & grubbing of 106.5 ac, excavation of 1,347,611 cy, terrace construction (16,734 lf), 2,538 t Class E riprap, 873 sq yd tied‑concrete block mat, 4,734 lf fence, 97.6 ac permanent native seeding, 5.8 ac wetland seeding, pipe installation, sediment & erosion control.
• Bid submission: via IMPACS by 2:00 PM on 11 Sept 2026; 10 % bid security required.
• Pre‑bid conference (optional): 28 Aug 2026, 10:00 AM, Marion County Extension Office, Knoxville, IA (phone 641‑842‑2014).
• Questions due: 8 Sept 2026 (written) to Anthony Harbaugh, P.E. (515‑223‑8104) for plans; other contract questions to Katie Coleman (515‑322‑6997).
• Contract compliance: Davis‑Bacon wage requirements; all work must meet Iowa Code Chapter 542B for surveying and applicable environmental regulations.
• Duration: ~15 months (mid‑Sept 2026 to 31 Dec 2027).
• Estimated budget: $4.8 M‑$5.3 M.