Excavation, Fill Placement, and Compaction

The contract calls for comprehensive bulk earthwork services including excavation, importation of fill material where necessary, precise layering, compaction, and subgrade preparation to ensure full compliance with ASTM standards and Iowa DOT Section 4130 specifications. All work must meet stringent engineering requirements for soil stability, density, and load-bearing capacity to support future infrastructure development. The scope is focused on achieving a uniform, properly compacted subgrade suitable for construction, with attention to material quality and placement techniques as mandated by state transportation standards. This is a subcontract opportunity posted on June 12, 2026, with a response deadline of June 24, 2026. It falls under NAICS Code 238910 for site preparation contractors and is administered by the Iowa agency. The place of performance and specific location details are not provided, but work is expected to occur within Iowa. Interested parties must submit responses through the designated online portal prior to the deadline, with no set-aside provisions indicated. The contract is open for bidding under the standard subcontract framework without restrictions based on business size or ownership type.