City of Columbia Ionwave #100/2026 Addendum 1

As-needed earth-moving and erosion-control services for the City of Columbia

The City of Columbia is seeking contractors for as-needed earth-moving and site work across City departments and locations. - Government buyer: City of Columbia, Missouri, Purchasing Division; project coordination also involves the Parks and Recreation Department. Brittany Miller is identified as the buyer contact. - Scope: Non-exclusive, term-and-supply earth-moving services ordered by project-specific purchase orders. Work may include excavation, hauling, site and ballfield grading, building/road/parking-lot base preparation, trails and sidewalks, pond or wetland work, seeding, and erosion control. - Named OEMs and equipment: CAT (815B compactor; D8T and D8R dozers, each specified as a 90,000-pound machine with an 11-cubic-yard blade), John Deere (two 1812 scrapers and 350 large trackhoe), Komatsu (360 large trackhoe), and Ingersoll Rand (flat roller). Alternate brands may be offered for specified machines if identified and shown to meet or exceed the listed equipment. - Equipment information requested: Make, model, and horsepower/capacity for dozers, mini excavators, crawler loaders, tractors, tractors with scrapers, excavators, graders, dump trucks, motor graders, skid steers, and backhoes. No equipment quantities are specified. - Pricing requested: Hourly rates for labor, operators, and drivers; unit prices for fencing, grading, seeding, and erosion-control work; and fixed percentages or prices for markups, mobilization, and an optional landfill fee. Rates distinguish straight time, overtime, and emergency/holiday/weekend work, with separate pricing with and without prevailing wages. - Notable requirements: Orange safety-fence installation and removal are priced per linear foot; grading and seeding work per square yard; and ditch checks as three-bale units. Administration and bonding pricing applies to projects over $50,000. Contractor materials and rental-equipment markups and mobilization percentages by project-value tier are to remain fixed through the contract. Project work must meet applicable City specifications, safety and land-disturbance requirements, and ADA requirements where applicable; prevailing wages and project-specific bonds apply where required. - Contract term: One initial year, with up to four additional one-year renewals, subject to the stated maximum contract term. No awarded contractor, quantities, or prices are provided.

Description

The City of Columbia is seeking competitive bids for earth moving services for City-designated projects. Work includes hourly labor and equipment/operator services, grading, erosion-control materials and installation, and related services, with pricing submitted under the solicitation’s pricing schedule. The contract period is effective from the contract date through one year, and the city may request services on a non-exclusive, as-needed basis. Addendum 1 updates pricing items and provides clarifications.

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