Iowa City Community School District Bidopportunities #26-04-61-02

Rock Scaling and Debris Removal at Harmon Tunnel Highwall, Pammel State Park

The Iowa Department of Natural Resources is seeking a contractor for rock scaling and debris removal at the Harmon Tunnel Highwall in Pammel State Park, Madison County. - Project Scope: - Removal of loose or unstable bedrock fragments and talus above and around both tunnel portal highwalls - Scaling must be performed using manual, mechanical, or chemical (non-explosive) methods; blasting is strictly prohibited - All spoil and loose material within the designated zone of influence and between the zone and tunnel pavement must be removed and disposed of - Contract Components (all lump sum): - Mobilization: movement of personnel, equipment, and supplies to the site - Scaling: actual removal of rock and debris - Scaled Material Disposal: excavation, loading, hauling, and disposal of debris to an approved site - Contractor Requirements: - All scaling personnel must have at least two years of full-time experience in rock slope stabilization - Each foreman and worker must have completed three similar projects in the last five years - Submission of a detailed work plan, including equipment lists, crew qualifications, protection plans for historic structures, and environmental safeguards - No specific OEMs or vendors are named; the contractor is responsible for providing all materials, equipment, and labor - Liquidated damages of $1,000 per day apply for delays beyond the required completion date - Warranty period for workmanship and materials is one year from final acceptance

Description

This solicitation is for the removal of loose or potentially unstable disjointed spalled/exfoliated bedrock fragments and talus above and around both tunnel portal highwalls at Pammel State Park in Madison County, Iowa. The work includes manual, mechanical, or chemical (non-explosive) scaling methods, removal and disposal of all spoil resulting from the operation, and all loose material between the zone of influence and the tunnel pavement. Blasting is not permitted. Personnel must have experience in rock slope stabilization and scaling, with specific qualifications required for foremen and workers.

View original listing