Project Tag: dam maintenance

Underwater Grout Repairs

Global was contracted to perform maintenance and underwater grout repairs to three waste gates at Ryan Dam in Great Falls, MT. The 5-person dive team consisted of the Dive Supervisor and four divers. The surface dive spread and decompression was based on a 30’ x 30’ EZ Float barge. The Dive Supervisor directed operations from …

Willow Creek Dam Rehabilitation

Global was selected as a subcontractor to provide diving and marine construction services for the Willow Creek Dam rehabilitation in 2017. The rehabilitation of the dam involves lining the existing intake tunnel with steel liner sections and installing three new hydraulic control gates. The majority of work was designed to take place in a dewatered …