North Fork of Clear Creek Sediment Removal & Remediation Project


Location

This project is located in Gilpin County along the west side of Highway 119, approximately 1 mile north of the confluence of North Clear Creek and Clear Creek.

This project is located in Gilpin County along the west side of Highway 119, approximately 1 mile north of the confluence of North Clear Creek and Clear Creek.

An aerial overview of the cleanup area.

An aerial overview of the cleanup area.

Summary

On or about September 13, during the historic flood of 2013, sediment was released from the spill containment system that was constructed for a crusher fines repository located in the headwaters area of an unnamed tributary to the North Fork of Clear Creek. The flood waters caused significant erosion of a crusher fines pile, which were carried down toward the North Fork of Clear Creek. A debris fan comprised of this residual mining material was deposited at the mouth of the affected unnamed tributary. The volume of this deposition was estimated to be 2,500 cu yds. This project involved the complete removal of the sediment from the debris fan near the mouth of the unnamed tributary to a redesigned and flood proofed repository. This project also consisted of restoring the affected area.

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