# Illinois BidBuy #27-422DNR-REALT-B-54304

Emergency extension for historic dormer repairs and wood window replacements

**Posted:** September 29, 2026
**Respond By:** October 15, 2026
**Identifier:** 27-422DNR-REALT-B-54304
**NAICS:** 238190, 238150

The Illinois Department of Natural Resources is seeking an emergency extension for historic window and dormer work at Black Hawk State Historic Site Museum in Rock Island, Illinois.
- **Government buyer:** Illinois Department of Natural Resources (DNR), Office of Realty and Capital Planning.
- **Scope:** Repair five existing historic dormers and replace five historic wood windows at the museum.
- **OEMs and vendors:** No manufacturers, OEMs, or contractors are identified in the notices.
- **Notable requirements:** Work concerns historic building features; the opportunity is described as an emergency extension.
- **Performance period:** The extension runs through the stated end date; a start date and total duration are not provided.

### Description

This is an emergency contract extension for repairs to five existing historic dormers and replacement of five historic wood windows at Black Hawk State Historic Site in Rock Island, Illinois. The extension continues the contract through January 16, 2027. The notice identifies the original contract as Bid 27-422DNR-REALT-B-53394.

[View original listing](https://www.bidbuy.illinois.gov/bso/external/bidDetail.sda?docId=27-422DNR-REALT-B-54304&external=true&parentUrl=close)