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WA Dam Gate Painting Up for Bid

Wednesday, May 8, 2013

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Industrial painting bids are now being accepted for coating and related work on the Lake Chelan Dam, in central Washington.

Bids are due May 16 for the work, which is estimated at $270,0000.

Scope of Work

The project involves abrasive blast-cleaning and recoating two 14-by-20-foot spillway gates at Lake Chelan Dam, formally known as the Lake Chelan Hydroelectric Project, which is owned by the Chelan County Public Utility District No. 1.

Lake Chelan Dam

The current dam, which began operation in 1927, is the fourth one on the site.

The steel will be abrasive blast-cleaned to a Near-White finish (SSPC-SP 10) using a lead-stabiliizing abrasive additive, then recoated with a moisture-cured urethane system. The project also includes replacing seals.

The existing coatings contain lead. Containment according to SSPC-Guide 6 and waste disposal according to Guide 7 will be required.

About the Dam

The dam, about 32 miles north of Wenatchee, WA, was built to raise the level of Lake Chelan and provide water for the area. It is located at the lower end of the 55-mile-long, 32,000-acre lake, which has depths of more than 1,500 feet and is bordered by more than two million acres of national forest lands.

The first dam on the site washed out the same year it was built (1892) and was replaced by a dam that was washed out two years later. The current dam, which began operation in September 1927, is the fourth one on the site.

The dam is a steel-reinforced concrete gravity structure, 40 feet high and 490 feet long, with eight spillway bays.

Chelan Dam

The dam, about 32 miles north of Wenatchee, WA, was built to raise the level of Lake Chelan and provide water for the area.

The 2.2 mile-long penstock is an underground concrete and steel tunnel that delivers water from the dam to its powerhouse at Chelan Falls—a vertical drop of nearly 400 feet. The surge tank reduces hydraulic pressure in the penstock.

Reported by Paint BidTracker, a construction reporting service devoted to identifying contracting opportunities for the coatings community.

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Tagged categories: Air abrasive blast cleaning; Bidding; Containment; Contracts; Lead; Locks and dams; Paint BidTracker; Painting Contractor; SSPC

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