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

  • Structural Drafter

    The Media, PA regional office of TD&H Engineering is seeking a full or part-time drafter/designer for our structural engineering department.  Experience in building design drafting and precast concrete drafting is preferred.  The successful candidate should be experienced in CAD and REVIT drafting and have a desire to progress or elevate their skills in building information modeling design. The hiring office has a work environment which is busy yet relaxed, small group, and stable.
    Job Duties & Qualifications:

    1-2 years in structural/building drafting and/or
    1-2 years in precast concrete or concrete detailing drafting
    Proficient with AutoCAD and/or Revit
    Experience with Tekla PC for precast concrete detailing (preferred but not mandatory)
    Experience with structural detailing and working with structural engineers & More >

    Read More

  • Surveyor

    TD&H Engineering is seeking an individual for full time employment as a land surveyor party chief, who would work under the direction of a licensed land surveyor.
    TD&H is a consulting engineering firm offering a full range of services throughout Washington, Idaho, Montana, North Dakota and Pennsylvania. We serve a diverse clientele ranging from individuals and rural water districts to large corporations in populous cities. We assist our clients through all phases of their projects, starting with concept development through construction completion. TD&H has been satisfying clients since its incorporation in 1965 and has built an impressive resume of successful projects. More >

    Read More

  • TD&H Engineering – Spokane, WA: Covid-19 Update

    The Governor of the State of Washington issued a “Stay Home” order for all residents for two weeks.
    Although our physical location will be closed, WE ARE STILL OPEN FOR BUSINESS. The Spokane Office has been planning for this event for weeks and we are quickly transitioning our staff to their homes to continue serving our clients. We are very fortunate that we can do our jobs from almost anywhere.
    If you need to call us, you can still call our main number (509-622-2888) and Laurine will answer the phone just like always (with our state-of-the-art phone system, Laurine can do this from her home). More >

    Read More

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