# Illinois BidBuy #27-557THA-ENGCO-B-54350

No-cost extension of on-call Phase II facilities engineering services

**Posted:** October 08, 2026
**Respond By:** October 22, 2026
**Identifier:** 27-557THA-ENGCO-B-54350
**NAICS:** 541330

The Illinois Toll Highway Authority amended its on-call facilities engineering contract to keep Phase II support available for ongoing construction work.
- **Government buyer:** Illinois Toll Highway Authority (THA), Engineering – Construction department; Downers Grove, DuPage County, Illinois.
- **Award:** Fourth amendment to the Facilities Design Services Upon Request contract; the amendment adds no cost.
- **Service:** On-call Phase II engineering support to complete open construction-related tasks and support ongoing construction contracts.
  - Quantity: 1 contract amendment.
  - Part number: Not specified.
- **OEMs and vendors:** No OEMs, contractors, or other vendors are identified in the notice.
- **Notable requirement:** Continue support for open tasks and active construction contracts under the existing agreement.

### Description

This is a fourth amendment and is explicitly not a solicitation. It is a no-cost extension of the Facilities Design Services Upon Request contract, extending the expiration date to December 1, 2027. The contract supports multiple open construction tasks and a new design task order with a final submittal due in Fall 2027; owner direction changes have delayed multiple task orders. The amendment is intended to keep the contract open to complete current tasks and support ongoing construction contracts.

[View original listing](https://www.bidbuy.illinois.gov/bso/external/bidDetail.sda?docId=27-557THA-ENGCO-B-54350&external=true&parentUrl=close)