Howard Hanson Dam Spillway Gates Retrofits

Howard Hanson Dam project consists of retrofitting 2 spillway gates. This includes structural strengthening the gates, full replacement of the all the gate hoist equipment, replacement of the trunnion bearing systems, gate seals, new paint, and replacing the switchgear, limit switches, and gate control systems. Work was successfully completed in October of 2020.

OWNER
USACE, Seattle District
LOCATION
Ravensdale, Washington
YEAR
2019
JOB NUMBER
19-105

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