700204 - Gardiner Diversion Improvement Projects

The State of Montana Natural Resource Damage Program is requesting bids on construction services for the Gardiner Diversion Improvement Projects under IFB 700204, with bids due August 6, 2026 at 2:00 PM MDT and a mandatory pre-bid conference and project walk-through on July 14, 2026 at 2:00 PM MDT at the Gardiner Diversion site near Anaconda. Attendance at the pre-bid conference is mandatory with no exceptions.

The scope encompasses removal of infrastructure, construction of a fish-passable rock ramp and sluice channels, installation of fish screens and a flume, and site reclamation on Warm Springs Creek. The work comprises 20 service line items including mobilization, temporary site work (bypass channel, coffer dam, dewatering), demolition, earthwork, fish screen installation, concrete work, rock ramp construction, riprap placement, gate and flume installation, and walkway and guardrail installation. Quantities range from 2 each to 1,500 cubic yards depending on line item.

Bidders must submit a bid bond or other acceptable bid security equivalent to 10% of the total eMACS bid items and complete the Information Required of Bidders form. All responses must be submitted through the eMACS platform, and prospective bidders must register in that system prior to bid submission. The contract specifies compliance with Montana's 1% gross receipts tax withholding requirement. Bidders are required to review all attachments in the Buyer Attachments section, including the Gardiner Project Manual and design drawings, which address detailed specifications for fish passage, hydraulic design, and environmental restoration standards.