Aggregate+Gradation+Table (1).pdf

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Attached to
District 6- Rock to Road - Shoulder Aggregate Class A Stone
Solicitation number
645-RFB-2407-2026
Issued by
Johnson County, Iowa

About this file

This is an Aggregate Gradation Table document supporting a Request for Bids issued by the Iowa Department of Transportation (Iowa DOT) for District 6 Rock to Road - Shoulder Aggregate Class A Stone procurement. The project involves the delivery and placement of Class A stone aggregate across five maintenance garage areas serving multiple highway locations: Urbana (3,025 tons on Highway 150), Tipton (3,500 tons on Highway 130), Coralville (1,400 tons on Highway 218 and 2,000 tons on Highway 1N), Independence (2,900 tons on Highway 187), and Dyersville (1,019 tons on Highway 20 WB and 382 tons on Highway 20 EB), totaling approximately 12,226 tons. A pre-bid meeting is scheduled for January 20, 2026, at 2:30 p.m. CST, with bids due February 10, 2026, at 1:00 p.m. CST. The contract will run from execution through December 31, 2026, with no renewal options. Bidders must submit comprehensive per-ton pricing that includes rock, delivery, and shoulder placement services, with mandatory requirements to bid on all lines within a specific group.

Pricing must be submitted in US dollars with payment terms of net 60. Bidders must provide a traffic control certificate for night work at Coralville locations. Material delivery is restricted to normal working days between 7:30 a.m. and 3:30 p.m., with required 24-hour notification prior to delivery and completion within ten working days of order placement. The Iowa DOT reserves the right to select delivery points and tonnage awarded to any single bidder and may purchase from alternative sources if the awarded vendor cannot provide product within 20 days. Evaluation criteria will consider cost, past work performance, work capacity, and ability to meet mandatory requirements and schedules. The solicitation does not explicitly mention specific set-aside designations or restrictions for disadvantaged enterprises.

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