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

Landscape Architecture
Water & Wastewater
Funding Procurement
New Office Locations

Services Designed with You in Mind

  • Civil Engineering

    Civil Engineering

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


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


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


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


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


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

  • Civil Engineer (Structural Emphasis)

    TD&H Engineering has an immediate opening in the Spokane, WA office for a 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 Engineer-in-training 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. The salary range for this position is $55,000 to $65,000 per year. More >

    Read More

  • Administrative Assistant/Receptionist

    The Bozeman, MT regional office of TD&H Engineering is seeking a temporary administrative assistant to start immediately through August 2019. Customer service and team cooperation a must!
    Ideal candidates:

    Work cooperatively and professionally with coworkers in a team environment as well as independently with self-initiative
    Multi-task effectively
    Have strong customer service skills
    Self-accountable and motivated
    Able to understand written and verbal instruction and have excellent communication skills

    Responsibilities include:

    Answering multi-line phone system, screen/transfer calls
    Assisting staff with administrative tasks as requested
    Greeting visitors
    Office inventory and supply orders
    File management
    Distributing correspondence
    Finalizing document deliverables

    This part-time position will average 20 hours/week now through August 2019. More >

    Read More

  • Public News Release: Roof Snow Load Concerns

    With all the snow and subzero temperatures that we’ve experienced this year, it comes as no surprise that we have been receiving a lot of calls lately from home and business owners concerned about the amount of snow on their roofs. Living in Montana, our structures are required to protect us against the harsh elements of winter, year after year and snow load on roofs is a major concern.
    The state of Montana dictates a minimum roof snow load, for design, of 30 pounds per square foot (psf). Some individual cities require a larger snow load, for example Bozeman requires 40 psf. More >

    Read More

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