Bid Intelligence · company

Diamond Construction Company

0 City of Chicago, Cook County and federal contracts in the last 10 years ($0 in total), 0 still running · 0 Cook County bids on record, lowest price on 0.

Contracts

  • No city or county contracts under this name in the last 10 years.

Cook County bids

  • No Cook County bid tabulations under this name.

IDOT lettings won

9 contracts where this company was the low bidder ($62M in total).

  • Resurfacing on IL 61 from 0.2 miles west of IL 94 to east of IL 110/336. Also includes scarification and microsilica overlay of SN 001-0077 and SN 001-0078.Adams · contract 72C54$8.0M1 other bidlet Nov 6, 2026
  • HMA surface removal, HMA resurfacing, paved shoulders with rumble strips, concrete gutter replacement and guardrail replacement on US 24 from 0.1 miles east of IL 96 (N) to 0.1 miles east of 1343rd Lane (Old US 24) east of Fowler.Adams · contract 72D29$7.7M0 other bidslet Jun 12, 2026
  • HMA resurfacing of North 36th St. from Wavering Park Rd. to Wisman Ln.Adams · contract 93848$1.1M0 other bidslet Jun 12, 2026
  • 9.1 miles of pavement patching, HMA surface removal, HMA surfacing, entrance reconstruction and aggregate wedge shoulders on IL 61 from the IL 94 south junction to 0.2 miles west and on IL 94 from the IL 61 south junction to north of US 24.Adams · contract 72B63$6.5M0 other bidslet Apr 24, 2026
  • 2.1 miles of resurfacing, patching, ADA improvements, traffic signal improvements and structure improvements on IL 104 (Broadway Street) from west of 38th Street to east of 63rd Street in Quincy.Adams · contract 72295$18M0 other bidslet Feb 27, 2026
  • 2 miles of resurfacing, ADA improvements, traffic signal improvements and patching on IL 104 (Broadway Street) from west of 12th Street to west of 38th Street in Quincy.Adams · contract 72K42$15M0 other bidslet Aug 1, 2025
  • Shoulder repairs on I-72 from the Trumpet Interchange to 0.8 miles east of IL 96, east of Hull. , Cured-in-place liner and pipe culvert removal and replacement on IL 4 / Veterans Parkway in Springfield.Pike · contract 72623$648,5061 other bidlet Jun 13, 2025
  • HMA resurfacing on South 18th Street from Harrison Street to Ohio Street in Quincy. Includes; sidewalks and ADA improvements.Adams · contract 93830$1.6M0 other bidslet Apr 25, 2025
  • 1.6 miles of resurfacing, intersection improvements, new left turn lanes and new HMA shoulders on US 24 from the east corporate limits of Camp Point to 0.1 miles east of IL 94.Adams · contract 72G59$2.9M0 other bidslet Jan 17, 2025

Source: Illinois Department of Transportation, Contract Status, matched by company name.

Matched by company name, so a different firm with a very similar name could appear, and a firm that changed its name may be split. Lowest price usually wins a sealed bid, but not always (responsiveness and RFP scoring decide too).

Source: City of Chicago, Contracts; Cook County, Procurement - Awarded Contracts & Amendments; Cook County, Procurement - Bid Tabulations; City of Chicago, Debarred Firms and Individuals, read Nov 14, 2026. Revisions grouped per contract; bid rank calculated by us; the debarred list is used only for this name check. Cook County does not endorse this product.