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Contact Us

General Inquiries

For quotes or for time-sensitive inquiries, please‎ call us 605-945-1315

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Corporate Office / Engineering

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207 East Capitol Ave.

Suite 209

Pierre, SD  57501

Pierre Materials Lab

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29310 Gary Street

Pierre, SD  57501

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Rapid City Materials Lab

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11865 Quaal Road

Black Hawk, SD  57718

Sioux Falls Materials Lab

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2200 E. 34th Street North

Suite 6

Sioux Falls, SD  57104

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