COFFERDAMS. 3. Whenever water is present in the upstream watercourse, a temporary cofferdam shall be installed upstream of the damaged tidegate/floodgate prior to initiating any excavation activity below OHW line in order to isolate the project site from the upstream watercourse.
Appears in 4 contracts
Samples: wdfw.wa.gov, salishsearestoration.org, www.skagitriverhistory.com
