Zimmerman Rock Underpinning and Rockfall Mitigation

The City of Billings is seeking bids to construct a rock underpinning and rock-toppling mitigation system above Zimmerman Trail, incorporating anchor bolts, wire-rope cabling, steel anchor-head plates, and shotcrete.

City of Billings


General
Open (open)
Sep 15, 2026 12:00 PM
Aug 27, 2026 12:01 AM
Invitation for/to Bid (IFB/ITB)
Local
Ask AI about this solicitation
Original Solicitation Links
Contact
robbinsw@billingsmt.gov
+14066578237
316 North 26th Street, Billings, MT, USA
Submission Instructions
Email

or

Mail
Billings City Clerk, 316 N 26th St, Billings, MT 59101; P.O. Box 1178, Billings, MT 59103

or

Hand delivery
Billings City Clerk, 316 N 26th St, Billings, MT 59101
Description

The City of Billings is soliciting bids for construction of a rock underpinning and rock-toppling mitigation system on a segment of the Rims above Zimmerman Trail. The system will incorporate anchor bolts, wire-rope cabling, steel anchor-head plates, and shotcrete. Bids must include a certified check, cashier’s check, or bid bond payable to the City of Billings in an amount of at least 10% of the total bid. The successful bidder must provide a performance bond and a labor and materials payment bond, each equal to 100% of the contract amount, along with required insurance documentation. The contractor and subcontractors must be registered with the Montana Department of Labor and Industry.

Classification Codes
NAICS238190Other Foundation, Structure, and Building Exterior Contractors
PSCY1KDCONSTRUCTION OF MINE SUBSIDENCE CONTROL FACILITIES
Smart Codes
rockfall mitigation systemsrock underpinning constructionshotcrete installation
Specifications
Supply & Service
Timeline
Aug 27, 2026-Publication Date
Sep 8, 2026-Pre-Bid Meeting (optional)
Beartooth Meeting Room, Billings City Hall; an on-site tour will be available afterward.
Sep 15, 2026-Bid Submission Deadline and Public Opening
Requirements
Required
Required
  • Bid Bond — 10%
  • Performance Bond — 100%
  • Payment Bond — 100%
Documents
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