Wishon Dam Radial Gates HDS Scanning

Frenso, CA

ANDREGG GEOMATICS teamed with HDR, Inc and PG&E to perform on-call High Definition Scanning for the Wishon Dam.

The intent of the project was to determine the extent of the cavetation damage to Radial Gate 6 in an effort to determine engineering design elements to optimize the gate’s operation.  Both Gate 5 and Gate 6 were scanned in the closed, 5ft-open and closed position. Measurements of the Trunnion Offset, Trunnion Beam Offset, Strut Arm Offset, Horizontal and Vertical Truss Offset and Skin Plate Offset were collected and provided to project engineers for analysis.