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

Structural
Landscape Architecture
Transportation
Stormwater
Water & Wastewater
Funding Procurement
Surveying

Services Designed with You in Mind

  • Civil Engineering

    Civil Engineering

    Creative solutions for structural, transportation, geotechnical & construction management Learn More about Civil Engineering
  • Structural

    Structural

    Fast, accurate, cost-effective solutions for everything from bridges to buildings Learn More about Structural
  • Geotechnical

    Geotechnical

    You'll find the leading experts in the geotechnical engineering field right here Learn More about Geotechnical
  • Transportation

    Transportation

    Creating safe and efficient transportation designs for roads and bridges since 1965 Learn More about Transportation
  • Recreation

    Recreation

    From meandering bike & pedestrian paths to skate parks & wave riders, talk to our experts Learn More about Recreation
  • Surveying

    Surveying

    Licensed surveyors using the latest technology for commercial and residential survey projects Learn More about Surveying
  • Industrial

    Industrial

    We have been providing quality services to industrial clients since 1965 Learn More about Industrial
  • Construction Administration

    Construction Administration

    We ensure a smooth process from pre-bid conferences to inspection and quality control Learn More about Construction Administration
  • Water System Engineering

    Water System Engineering

    Wastewater collection and treatment solutions that are human & environment-friendly Learn More about Water System Engineering
  • Wastewater Systems

    Wastewater Systems

    We design water distribution, storage and treatment solutions for communities and individuals Learn More about Wastewater Systems


TD&H Engineering Recent Blog Posts

  • Surveyor’s Assistant

    TD&H Engineering is seeking an individual for full time employment as a Surveyor’s Assistant, who would work under the direction of a licensed land surveyor and/or survey party chief. This position would include the operation of surveying equipment and the engagement in various surveying practices, including construction layout, site topography surveys, and land surveying. Some surveying knowledge and abilities with GPS, total stations and other standard survey equipment is preferred, but not required. Person must enjoy working outdoors, be able to work in all types of weather, and be able to conduct physical activities. The position would be stationed in Great Falls, More >


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  • Entry-Level Civil Engineer (Structural)

    TD&H Engineering has an immediate opening in the Spokane, WA office for an entry-level civil engineer with an emphasis on structural design and knowledge of CADD.
    Applicants must possess either a Bachelor of Science degree or higher from an accredited university. Certification as an Engineering Intern (E.I.) is desirable.  Exceptional communication skills, along with a strong team attitude and a positive client focus are essential.  Work will include an emphasis in structural engineering design and drafting for a wide variety of projects.
    TD&H offers a competitive compensation and benefits package, as well as opportunities for continuing education and career advancement.
    Submit your resume and cover letter, More >


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  • Wade DeBoo Named President and CEO of TD&H Engineering

    TD&H Engineering is pleased to announce Wade DeBoo, P.E. and Principal, as the new President and CEO of the company.
    DeBoo, a member of the TD&H team since 2000, will oversee operations from the company’s main office in Great Falls, Montana. He replaces retiring President and CEO David Crawford.
    “I am excited at the opportunity to step into the position of President and CEO of TD&H Engineering. This employee-owned company has a long history of success as a result of many hard-working former and current employees,” said DeBoo.
    DeBoo brings 24 years of engineering and management experience to the firm. He has a Master’s Degree in Civil Engineering with an emphasis on hydraulics, More >


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