Van Winkle Stadium & Lambert Field

TD&H provided design, a traffic study update, and construction administration, along with design and construction for a new field complex at the Lambert Fields on the MSU campus.

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Great Falls Water Treatment Plant

This project won the American Council of Engineering Companies of Montana Grand Project Award Winner (2019).

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Briarcliff Fire Station

TD&H seamlessly integrated concrete foundations, CMU shear and bearing walls, long-span open-web steel joints, and a wood-framed mezzanine structure into the 6,000 sq. ft. addition to the Briarcliff Fire Station.

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Peasley Creek Fish Passage Bridge

The project was to improve fish passage by replacing an existing box culvert and complete construction during the fish window. The project, funded jointly by the U.S. Forest Service and the Nez Perce Tribe, replaced the existing box culvert with a larger-span pipe arch.

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City of Leavenworth Commercial Street Improvements

TD&H provided the transportation design project that increased the roadway to 20’, added curb, gutter, and a 6’ wide concrete sidewalk, and improved stormwater drainage.

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

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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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City of Livingston Engineering Services

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Van Winkle Stadium & Lambert Fields

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Montana Avenue Sidewalk Upgrades

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Riverview Meadows Path Improvements

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Pomeroy 6th Street Bridge

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Stites Wastewater System Improvements

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WHAT WE DO

Civil Engineering

Structural Engineering

Funding Procurement

Surveying

Geotechnical Engineering

Water, Wastewater, & Stormwater Systems

Transportation Engineering

Environmental Engineering

Industrial Hygiene

Land & Site Development

Landscape Architecture & Planning

Aviation
Construction Administration

Construction Administration

Materials Testing

Precast Concrete Design
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RECENT NEWS

Professional Engineer’s Day

August 4, 2021

Join us as we raise awareness about what it means to be a Professional Engineer, recognize licensed PEs, and show…

READ FULL ARTICLE >

Thank You Interns!

August 2, 2021

We want to give our Interns a special thank you for their efforts this summer! 1. Logan Reed (Spokane Office)…

READ FULL ARTICLE >

Project Spotlight: Hyalite Hall

August 1, 2021

We performed survey, civil, geotechnical, and special inspection services on the newest Montana State University Residence Hall. The $50M residence…

READ FULL ARTICLE >

Professional Engineer’s Day

August 4, 2021

Join us as we raise awareness about what it means to be a Professional Engineer, recognize licensed PEs, and show…

READ FULL ARTICLE >

Thank You Interns!

August 2, 2021

We want to give our Interns a special thank you for their efforts this summer! 1. Logan Reed (Spokane Office)…

READ FULL ARTICLE >

Project Spotlight: Hyalite Hall

August 1, 2021

We performed survey, civil, geotechnical, and special inspection services on the newest Montana State University Residence Hall. The $50M residence…

READ FULL ARTICLE >

Save the MDH Trail Volunteer Effort

July 26, 2021

An engineer from TD&H joined the Save the MDH Trail volunteer effort last Saturday and Sunday (7/10 and 7/11) to…

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