PITTSBURGH 412.257.1800

CLEVELAND 216.579.1855

ST. LOUIS 618.277.7510

Limestone Storage Silo Foundation: Harrison Power Station, Shinnston, West Virginia

A record-breaking mat pour - one of the largest ever undertaken in the United States - called for Howard crews to pump 16,200 yards of concrete over an area of more than an acre. It was completed, non-stop in just 51 hours—without a hitch!

A serious problem developed when sink holes began to occur in this power plant switch yard. Working in extremely tight conditions and close to 500,000 volt power lines, we used trailer mounted equipment to pump over 20,000 yards of concrete into abandoned mines under the switch yard. We were also called on to do the same in a nearby ash disposal site.

Our crews also placed flowable fill for a series of 200 ft. diameter foundations for thickener tanks and maintained a 15-degree slope angle (±1/2") across the entire foundation of each tank in the process. A flowable fill formulation was used for the foundation of a 1,000 ft. stack and in areas around concrete tunnels.

Pittsburgh Office Location

Howard Concrete Pumping Pittsburgh PA Office

701 Millers Run Road
Cuddy, PA 15031
412.257.1800

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Cleveland Office Location

Howard Concrete Pumping Cleveland Ohio Office

18801 South Miles Rd.
Warrensville Heights, Ohio 44128
216.579.1855

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Illinois Office Location

Howard Concrete Pumping Illinois Office

124 Tower Plaza
Belleville, IL 62220
618.277.7510

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