Licensed surveyors using the latest technology for commercial and residential survey projects
Creative solutions for structural, transportation, geotechnical & construction management
Site development planning requires an interdisciplinary team approach. We can help!
We design water distribution, storage and treatment solutions for communities and individuals
Wastewater collection and treatment solutions that are human & environment-friendly
Fast, accurate, cost-effective solutions for everything from bridges to buildings
You’ll find the leading experts in the geotechnical engineering field right here
Creating safe and efficient transportation designs for roads and bridges since 1965
From meandering bike & pedestrian paths to skate parks & wave riders, talk to our experts
We have been providing quality services to industrial clients since 1965
We ensure a smooth process from pre-bid conferences to inspection and quality control
Our media division has an immediate opening for a full-time web developer. Some of the …
TD&H Engineering is seeking a Structural Engineering Intern for our Great Falls office. This position …
TD&H Engineering is seeking an individual with basic knowledge to plan, organize, and engage in …
Visit the website for the City of Belgrade’s water infrastructure construction project to get reliable and up-to-date information about the project and provide feedback.
The Lewiston Urban Renewal Agency is currently in the construction phase of reconstructing First and Fifth Streets in Downtown Lewiston. Visit the website for updates, construction progress and information about the art project.
Get in touch with us: 
@tdhengineering.com 
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1800 River Drive North
Great Falls, Montana 59401
ph. 406.761.3010
fx. 406.727.2872
450 Corporate Drive, Suite 101
Kalispell, Montana 59901
ph. 406.751.5246
fx. 406.752.5230
234 E. Babcock, Suite 3
Bozeman, Montana 59715
ph. 406.586.0277
fx. 406.586.4951
303 East 2nd Avenue
Spokane, Washington 99202
ph. 509.622.2888
fx. 509.622.2889
210 Main St
Lewiston, Idaho 83501
ph. 208.746.0938
fx. 208.746.9732
1125 Oilfield Ave
Shelby, Montana 59474
ph. 406.424.8280
304 Lincoln St
Watford City, North Dakota 58854
ph. 701.842.6619
2736 Palm Drive
Billings, Montana 59102
ph. 406.581.8256