Allender Butzke Engineers, founded in 1992, provides geotechnical, environmental and construction quality control services to both public and private clients in Iowa and the surrounding states. Allender Butzke Engineers works on a wide variety of projects, including buildings, dams, lagoons, parking lots, roads, airports, bridges, retaining structures, and site development. It is accredited in various soil, aggregate and Portland cement concrete tests. The company is accredited by the American Association of State Highway and Transportation Officials program, which recognizes the competency of a testing laboratory in construction materials testing. The firm s staff of engineers and geologists has master s degrees in their respective fields. The company owns its test drilling rigs, in-situ testing equipment, and an array of modern, state-of-the-art laboratory and field-testing equipment. Allender Butzke Engineers is headquartered in Urbandale, Iowa.

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