We're a consulting engineering firm offering a full range of services throughout Montana, Washington, Idaho, North Dakota & Pennsylvania.

Building Quality of Life

  • TD&H Engineering Survey Services

    Surveying

    Licensed surveyors using the latest technology for commercial and residential survey projects

    Learn More about Surveying Services
  • TD&H Engineering Civil Engineering Services

    Civil Engineering

    Creative solutions for structural, transportation, geotechnical & construction management

  • TD&H Engineering Land Development Services

    Land Development

    Site development planning requires an interdisciplinary team approach. We can help!

  • TD&H Engineering Water System Services

    Water Systems

    We design water distribution, storage and treatment solutions for communities and individuals

  • TD&H Engineering Wastewater Services

    Wastewater

    Wastewater collection and treatment solutions that are human & environment-friendly

  • TD&H Engineering Structural Development Engineering Services

    Structural

    Fast, accurate, cost-effective solutions for everything from bridges to buildings

  • TD&H Engineering Geotechnical Services

    Geotechnical

    You’ll find the leading experts in the geotechnical engineering field right here

  • TD&H Engineering Transportation Services

    Transportation

    Creating safe and efficient transportation designs for roads and bridges since 1965

  • TD&H Engineering Survey Services

    Recreation

    From meandering bike & pedestrian paths to skate parks & wave riders, talk to our experts

  • TD&H Engineering Industrial Engineering Services

    Industrial

    We have been providing quality services to industrial clients since 1965

  • TD&H Engineering Survey Services

    Construction Management

    We ensure a smooth process from pre-bid conferences to inspection and quality control



TD&H Engineering Recent Blog Posts

  • Civil Engineering Position

    The Bozeman, Montana regional office of TD&H Engineering has an immediate opportunity for a civil …


    Apr 30, 2015
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  • Hydrocracker installed at Calumet Montana Refinery in Great Falls

    By: DaVonte McKenithCONNECT GREAT FALLS — Installation of a “mild hydrocracker” was completed at the …


    Mar 24, 2015
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  • TD&H Engineering Commits $25,000 to Great Falls College MSU Endowment

    TD&H Engineering invests in engineering scholarship opportunities at Great Falls College MSU, by endowing $25,000 …


    Feb 26, 2015
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