Silver Age & Ship Ahoy Mine Remediation


Location

the Silver Cycle Mine Remediation project is located on Gilson Gulch, approximately 1 mile north of Gilson Avenue and Riverside Drive in Idaho Springs

the Silver Cycle Mine Remediation project is located on Gilson Gulch, approximately 1 mile north of Gilson Avenue and Riverside Drive in Idaho Springs

The Ship Ahoy Adit prior to closure

The Ship Ahoy Adit prior to closure

The Ship Ahoy Adit after closure

The Ship Ahoy Adit after closure

Summary

The Gilson Gulch /Silver Age Mine Project was a “clean mine water diversion project,” designed to prevent stream contamination from mine waste. Work included the re-route of upstream headwaters drainage around the Silver Age Mine Waste Pile and removal and consolidation of mine waste away from the drainage.

The Ship Ahoy Mine is located very near the headwaters of the east tributary of Gilson Gulch and upstream of the large Silver Age Mine waste pile. The Gilson Gulch/Silver Age Mine project was aimed at preventing contamination from the Silver Age Mine waste pile to the water draining from the headwaters area and the Ship Ahoy Mine.

The engineering goals of the Project were to reduce contact of groundwater and surface water with mine waste. The project included construction of lined drainage channels, excavation and stabilization of surface water diversion channels, as well as, excavation and construction of a French drain to intercept alluvial surface waters in the upper east tributary of Gilson Gulch. The effect of this Project was to reduce contaminant loadings to water in Gilson Gulch and the Clear Creek.

Read the Final Project Report, and view a map of the project area.

Tailings at the Silver Age Mine Site.

Tailings at the Silver Age Mine Site.