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
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

    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

  • Construction Representative/Field Engineer

    The Bozeman, Montana regional office of TD&H Engineering has an immediate opening for a Construction Representative/Field Engineer. The position includes inspection, testing, and overall administrative and technical direction for projects.
    TD&H Engineering is a mid-sized civil/structural/geotechnical engineering firm with offices in Montana, Washington, Idaho, North Dakota, and Pennsylvania. This is a full-time, hourly position. TD&H is an Equal Opportunity Employer and provides competitive wages, a comprehensive benefits package, opportunities for advancement, and continuing education.
    To apply, send an email with resume, cover letter, and list of references to human.resources@tdhengineering.com This position will be open until filled. No phone inquiries please. More >


    Read More

  • TD&H Accepts ACEC Award for River Crossings Project

    TD&H is proud and honored to accept the ACEC Water Resources Honor Award for our work on the Missouri and Sun River Water Main Crossings project.
    The $5.5 million horizontal directional drilling project piqued public curiosity for the past year, and we are eager to share the details of this project where we partnered with AE2S and Brierley Associates. TD&H was the professional consultant responsible for the planning and design of this considerably complex project. We developed construction plans and specifications for new water main crossings under the Missouri and Sun Rivers.

    Great Falls relies on 4 river crossings to maintain pressure and flow in the distribution system west and north of the Missouri River. More >


    Read More

  • CMT (Construction Materials Technician)

    Job Description
    Thomas Dean & Hoskins, Inc. (TD&H) is an award winning consulting engineering firm offering a full range of services throughout Montana, Washington, Idaho, 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.
    TD&H strives to provide innovative engineering solutions to challenging technical problems by assigning professionals who understand the issues and deliver results. More >


    Read More

  • View All

Active Projects