Heyer Engineering Inc.

Fargo Office

4180 24th Ave. S

Fargo, ND 58104

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701.280.0949       F: 701.280.9686

Sioux Falls Office

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436 E 8th Street 

Sioux Falls, SD 57103

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605.370.6139

California Office

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400 Ramona Ave. S  - Suite 212 Z

Corona, CA 92879

Minnesota Office

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121 Washington Ave. N - Suite 335

Minneapolis, MN 55401