VIDEO: Terracing & Stabilizing the Waste Rock

When the middle tunnel at the Alaska Treasure Mine on Nevada Creek was created over 100 years ago

a tremendous pile of waste rock was pulled from the mountain as the workers dug over 4,000 feet of tunnel. This waste rock pile has forever changed the landscape adjacent to the mine entrance and over the last century the pile was grown trees, shrubs, moss and a layer of soil and on top of all of this piles of rusted drill bits, bits of metal and machinery. Most of this waste rock feature is stable but a significant portion that is in contact with the creek is eroding into the water.

An important component of the Nevada Creek Mitigation Project is the stabilization of the eroded section of the mine waste. This is accomplished by terracing the steep and unstable hillside and placing dozens of large native logs laterally up the slope. At the bottom of the slope is a foundation of very large logs anchored into place. Rebar, anchors and cable reinforce the terraced logs and once in place native flora will be introduced; moss, devil’s club, deciduous and coniferous trees, shrubs etc.

In this video Waterman Mitigation Partners founder Steve Sego stands atop the waste rock pile and shows the viewer the progress of the stabilization thus far.