Nicholson Construction has been awarded by YMCA of the Rockies – Snow Mountain Ranch the restoration of the Gaylord Dam, located in Granby, Colorado.
Through regular inspections of the 26-year-old earthen embankment dam, seepage beneath the initial key depth at the spillway was detected, along with fractured and highly jointed bedrock. A tracer dye test showed dye appearing approximately 400 feet downstream from the spillway.
Further testing and investigation confirmed the seepage and that a grout curtain within the bedrock below the overburden was the best method for water cutoff.
The dam’s owner, YMCA of the Rockies – Snow Mountain Ranch, awarded Nicholson the contract for construction of the grout curtain, which will total 660 linear feet with 660 cubic feet of grout.
The project included drilling and grouting fourteen holes divided evenly by two rows parallel to and along the dam’s centerline at designated locations along the spillway.
Grout operations has been conducted using the grout monitoring system, Grout IT.