The shape of solutions that accelerate and improve.

Quality concrete solutions that advance timelines and adhere to the highest standards of quality and longevity have been our hallmark for nearly a century. By setting new standards for innovation and engineering, we’ve helped keep the wheels of progress moving forward in new and exciting ways.

Cretex Infrastructure:
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  • Cretex Concrete Products combines strong materials with strong ideas. We know our products last because we’ve been around long enough to watch them last. As your community grows, Cretex recognizes you are at the forefront of reshaping the infrastructure of the future. We understand what your project demands, we keep it personal and customized, and we provide the best results with the least risk. No other company offers our combination of quality, integrity, and commitment to our community. Make us your first call, and we’ll provide the century solution.


    Reinforced concrete pipe
    Box culverts
    Manholes and catch basins
    Storm water quality products
    Bridge products
    3 Sided arch/box structures
    Utility vaults
    Retaining walls
    Sound walls
    Precast poles
    Precast piling
    Median barriers
    Duct banks


    Minnesota (Headquarters)
    6655 Wedgwood Road, Suite 130
    Maple Grove, MN 55311
    (763) 545-7473

    525 South 11th Street
    West Des Moines, IA 50265
    (515) 223-8761

    23600 West 40th Street
    Bonner Springs, KS 66226
    (913) 422-3634

    7 West 6th Avenue, Suite 504
    Helena, MT 59601
    (406) 442-8060

    North Dakota
    925 Basin Avenue
    Bismarck, ND 58504
    (701) 223-7178

    South Dakota
    2046 Samco Road, Suite 2
    Rapid City, SD 57702
    (605) 718-4111

  • Cretex Materials, a regional leader in aggregate products, supplies limestone, sand and gravel to the concrete, asphalt, landscaping and highway construction industries throughout Southern Wisconsin and Northern Illinois. With millions of tons of reserves in Burlington, Wisconsin, we will continue to meet the infrastructure construction needs of the region for decades to come.

    The team at Cretex Materials will work with you to provide the highest-quality, best solutions for your building aggregate needs.

    Learn More


    Cretex Materials
    500 W. Market St. Bldg C
    Burlington, WI 53105
    Fax: 262-763-4341


  • Cretex Specialty Products is a market leader with products designed to eliminate inflow and infiltration in Manholes and Underground Pipes. With products for construction and rehabilitation, Cretex Specialty Products can help find the best solution for underground utilities.


    Internal mechanical manhole chimney seals
    External mechanical manhole chimney seals
    Applied manhole chimney seals
    Manhole adjusting rings
    Internal mechanical manhole barrel joint seals
    Internal mechanical pipe joint seals
    External joint wrap
    Manhole lid sealing products


    Cretex Specialty Products
    N16 W23390 Stoneridge Dr., Suite A
    Waukesha, WI 53188

  • While serving customers for over 50 years, Elk River Machine Company has grown from a local Minnesota welding shop to a nationally recognized manufacturer of production equipment for the concrete pipe, precast, and prestress industries. At ERMC we combine the use of Continuous Improvement and Operational Excellence with modern equipment, and efficient processes to produce some of the best equipment in the concrete industries. In addition to our solid line of standard products, we also offer in-house engineering expertise to design custom solutions to a broad range of challenging production problems.


    Acromix batch plants
    Hydra-steer steerable trailers
    Hydra-roll computerized mesh rollers
    Mesh benders
    Pipe tippers
    Pro-cutter manhole cutter
    Retaining wall block forms
    Other custom production equipment


    Elk River Machine Company
    828 4th Street
    Elk River, MN 55330