Thomas Dean & Hoskins, Inc.

Great Falls, MT

TD&H’s corporate headquarters in Great Falls, Montana supports a local staff of 45, offering a truly comprehensive menu of engineering and related services to local and regional clients.  With this variety of technical and administrative assistance available, our customers include a unique blend of individuals, international corporations, rural utility districts; large municipalities, County, State and Federal agencies, including the Montana Air National Guard and Malmstrom Air Force Base.  Established in 1965 and engineering local improvements ever since, you would be hard pressed to travel a city block in Great Falls without crossing a facility we have not touched.


Monday - Friday, 8:00am - 5:00pm

(406) 761-3010


Project Spotlight: I-90 Quartz Flats Rest Area CE&I

Location: Near Superior, MT Client: Montana Department of Transportation TD&H provided construction engineering and inspection (CE&I) services as well as contract administration for the Quartz Flats rest area. Using consultant services with a design/build project is new to MDT, requiring flexibility and adaptability from our team. TD&H provided a construction inspector and various supplemental staff…



Take me out to the ballllllgame!

June 28, 2019

Members of TD&H’s Great Falls office enjoyed a Voyagers baseball game this past week, complete with hot dogs, peanuts and…


Wade DeBoo Named President and CEO of TD&H Engineering

June 5, 2018

TD&H Engineering is pleased to announce Wade DeBoo, P.E. and Principal, as the new President and CEO of the company….


Featured Projects

Missouri River Forcemain Crossing Feasibility Study Building

Missouri River Forcemain Crossing Feasibility Study

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Great Falls Water Main Crossings

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Great Falls High School & Memorial Stadium

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Sun River Connector Trail

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