# City of Chicago #77313,2

Construction of O’Hare Airport Grade Separated Service Roadway A3/A4

**Posted:** September 14, 2026
**Respond By:** November 06, 2026
**Identifier:** 77313,2
**NAICS:** 237310

The City of Chicago is seeking construction bids for the Grade Separated Service Roadway A3/A4 at Chicago O’Hare International Airport.
- **Government buyer:** City of Chicago — Chicago Department of Aviation; the notice does not identify a more specific purchasing office.
- **Opportunity:** Construction of the Grade Separated Service Roadway A3/A4 at O’Hare, under Specification 1343562 and RFQ 77313,2.
- **Funding and requirements:** The project is federally funded. The available notice does not provide detailed construction specifications, quantities, or other technical requirements.
- **OEMs and vendors:** No manufacturers, OEMs, or vendors are named in the available notice.

### Description

The solicitation is for the Grade Separated Service Roadway A3/A4 at Chicago O'Hare International Airport. The project is identified as Specification 1343562 and is categorized as construction. The pre-bid meeting is scheduled at 10510 W. Zemke Road, Chicago, IL 60666 O'Hare AAB. Responses are due November 6, 2026, at 11:00.

[View original listing](https://webapps1.chicago.gov/vcsearch/city/solicitationdetails/-78375eprocurement)