At Work | 2019
Summary of maintenance and special projects completed in 2019.
Summary of maintenance and special projects completed in 2019.
Vegetation management is key to preserving channel capacity for flow, and providing access for maintenance activities along the 33 miles of channel that we are responsible for.
With this year’s extra rainfall, we’ve increased mowings up to four per year for most dams and removing debris removal from trash racks.
Four Pipe Structures were replaced on Channel Reaches LC02, CC05, and CC11. Access was improved at Dam 7-C and Coal Bank Road gates.
In 2019, we used our first laser scan and 3D Basemap to indicate any possible compromises of a Principal Spillway structure.
Installation of the StormLink® Satellite Monitoring Station allows remote monitoring during heavy rainfall and storm events.
In 2019, we completed our first laser scan and 3D basemap of a Principal Spillway structure. At Hubbard Valley Dam, (Dam 3-A), the spillway consists of a 25 foot tall concrete riser, 42-inch diameter by 236 foot long outlet pipe and impact basin. GPD Group – Akron was the contractor. The initial report and drawings provide a very detailed basemap of the spillway. Comparisons of the initial basemap and subsequent scans, will indicate any possible compromises of the structure or the pipe. This level of detail will supplement more basic visual inspections.