# Illinois BidBuy #27-557THA-ENGCO-B-54363

Proposed I-490 roadway construction change order for excavation and nonspecial waste work

**Posted:** October 02, 2026
**Respond By:** October 30, 2026
**Identifier:** 27-557THA-ENGCO-B-54363
**NAICS:** 237310

The Illinois Toll Highway Authority is notifying the public of a proposed change order for additional I-490 roadway construction work.
- **Government buyer:** Illinois Toll Highway Authority (THA), Engineering - Construction; Downers Grove, DuPage County, Illinois.
- **Work requested:** One line item (1 EA) for additional earth excavation and nonspecial waste work associated with I-490 roadway construction.
- **Cost context:** The stated change-order cost is $195,216; the original contract amount is $38,218,135.25.
- **OEMs and vendors:** No OEM, contractor, or other vendor is identified in the notice.
- **Notable requirement:** The notice states that the added work is germane to the original contract and covered by its provisions.

### Description

This notice states the intent to amend an existing contract with OHLA Central, Inc. and Judlau Contracting, Inc. in a joint venture. The additional work is earth excavation and nonspecial waste for I-490 Roadway Construction, and the source says the work is germane to the original contract and included in its provisions. The listed change order cost is $195,216.00; the original contract award amount is $38,218,135.25. The response deadline is October 30, 2026, at 12:00:00 AM.

[View original listing](https://www.bidbuy.illinois.gov/bso/external/bidDetail.sda?docId=27-557THA-ENGCO-B-54363&external=true&parentUrl=close)