Pennsylvania Mine Rehabilitation

Pennsylvania Mine Rehabilitation

Keystone, Colorado

This project consisted of rehabilitating 600 feet of tunnel in the Pennsylvania Mine, which is located at over 10,000 feet elevation in the mountains outside of Montezuma, Colorado.

The project included the placement of steel sets, spiling rod, and other roof control measures. In addition, we cleared a cave-in at the 100’ station, and removed rotten timbers and contaminated materials. The project also included straightening of rail, installation of walkway, and cleaning of ventilation and utilities to allow teams to investigate and establish parameters for a concrete bulkhead and closure.

Harrison Western diverted the contaminated water through a series of lined ponds for treatment before release into Peru Creek.

Start Date: June 2013
Completion Date: October 2013

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