Gross Dam

DA Smith started the 2024 Phase 1 drilling campaign at Denver Water's Gross Reservoir Dam located near Boulder, Colorado, as part of the $464 million Gross Reservoir Expansion (dam raise) project being constructed by Kiewit-Barnard.  Holes are being drilled as water monitoring wells located throughout the foundation of the dam and at downstream points beyond the footprint of the dam.  Wells will be instrumented with vibrating wire piezometers and connected by wire or telemetry to the dam's central data acquisition system.

Drilling is being conducted with a state-of-the-art water hammer system capable of rapid penetration while imparting minimal disturbance to the rock mass often associated with air hammers.  Tracked and crane-hoistable drills are in service on the project.