# Illinois BidBuy #26-557THA-ENGCO-B-54047

Illinois Tollway adds $995,000 for Union Pacific Railroad bridge construction management

**Posted:** October 13, 2026
**Respond By:** October 27, 2026
**Identifier:** 26-557THA-ENGCO-B-54047
**NAICS:** 541330

The Illinois State Toll Highway Authority added funding for construction management and closeout services on a Union Pacific Railroad bridge project.
- **Government buyer:** Illinois State Toll Highway Authority, Engineering - Construction department; Downers Grove, Illinois.
- **Award:** Second contract supplement adds **$995,000**, bringing total contract authorization to **$5,617,000**.
- **Project:** Construction of the Union Pacific Railroad bridge over Grand Ave, east of I-294.
- **Services:** Phase III construction management, on-site inspection, layout review, geotechnical inspection and testing, project records and documentation, pay estimates, change orders, and construction closeout support.
- **OEMs and vendors:** No OEMs are identified. The construction management contractor is not named in the provided information.
- **Performance outlook:** Construction is anticipated to continue through the summer, with closeout expected by year-end; specific start and end dates are not provided.
- **Notice status:** This is an award notice, not an open solicitation.

### Description

The Illinois State Toll Highway Authority gives notice of a second supplement to contract I-21-4744 with STV Inc. for Phase III construction management services supporting construction contract I-21-4736, the Union Pacific Railroad bridge over Grand Ave, east of I-294. Services include on-site inspection, layout review, geotechnical inspection and testing, documentation, pay estimates, change orders, and project closeout work. The supplement adds $995,000, bringing total contract authorization to $5,617,000. This notice states that it is not a solicitation.

[View original listing](https://www.bidbuy.illinois.gov/bso/external/bidDetail.sda?docId=26-557THA-ENGCO-B-54047&external=true&parentUrl=close)