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  5. ›CHANGE ORDER NOTICE I-19-4475 Widening over CSX and B OCT Railroad…

Awarded contract·Illinois THA - Toll Highway Authority·Illinois

CHANGE ORDER NOTICE I-19-4475 Widening over CSX and B OCT Railroad Bridge and I-57 Restriping

Won by Dunnet Bay Construction Co.$20.8MAwarded 4/22/2021Single Award
Contract source

Awarded vendors

  • Dunnet Bay Construction Co.

Description

This solicitation represents a one‑year amendment (Change Order) to an existing construction contract for widening over the CSX and B Oct Railroad Bridge and restriping I‑57. The original contract, valued at roughly $20.8 million, was awarded to Dunnet Bay Construction Co. The amendment does not require additional funding; it merely extends the contract period to accommodate a claim submission. • Original contract awarded 04/22/2021 to Dunnet Bay Construction Co. for $20,793,926.70. • Scope: Bridge widening and highway restriping on I‑57, originally advertised 02/11/2021. • Amendment extends the contract by one year (expires 10/28/2026) with no extra funds required.

Attached files

Key dates

Bids closed
10/14/2026
Intent to award
4/22/2021
Awarded
4/22/2021
Contract modified
9/17/2026
Ends
10/28/2026
Duration
1 year

Last updated

Details

Award type
Single Award
Procurement
Full and Open Competition
Industry
Construction
NAICS
237310
Solicitation №
27-557THA-ENGCO-B-53876

Contract value

$20,780,000

The original contract amount is explicitly stated as $20,793,926.70 and the amendment notes “No additional funds are required.” Therefore the total contractual value remains essentially the original amount. Rounding to a clean figure for database purposes, the estimated contract value is approximately $20.8 million.

AI estimate from the award documents

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