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Columbia Pneumatic Hoist Provides Lift For Emergency Management Exercise

Columbia Pneumatic Hoist Provides Lift For Emergency Management Exercise

Application: Columbia Pneumatic Hoist used for placing and removing a water diversion tunnel plug
Customer: City of Los Angeles
Location: Long Valley Reservoir, California
Hoist Model: Columbia HL15000-P-05
Line Pull: 15,000 pounds
Line Speed: 9 feet per minute
Wire Rope Capacity: 80 feet x 5/8″ diameter wire rope
Power Source: Pneumatic – 225 SCFM @ 85 PSI

Why APPI: Long Valley Reservoir (Crowley Lake) is the largest reservoir in the Los Angeles Aqueduct System and ultimately the source of drinking water for 4.3 million customers.

To meet California Department of Safety Of Dams requirements, the Los Angeles Department of Water and Power must place a three-section segmental plug weighing 5000 pounds 80 feet below the reservoir water line to block an emergency diversion tunnel. When it is removed, up to 10,000 lbs. of line pull may be required to pull it free.

Key factors in the decision to purchase this unit were it high efficiency planetary reduction, sealed construction without any greasing requirements and automatic brake.

According to the workers who use this unit, their barge mounted Columbia Pneumatic Hoist turns what would have been a time consuming and nearly impossible task into a routine operation.

Please contact us if you would like more information about this particular Columbia pneumatic hoist or any of our other products and services.


Allied Power Products, Inc. has specialized in providing winches, hoists, capstans and cranes to meet our customers’ specific application requirements for more than 30 years.

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