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

Welcome Ryan Vosen!

September 27, 2022

Please join us in welcoming Ryan to the Helena office. Ryan is joining the team as an Environmental Engineering Intern.

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Welcome Mark Peterson!

September 8, 2022

Please join us in welcoming Mark Peterson to the Helena office! Mark joins us as a Senior Engineer.

READ FULL ARTICLE >

Environmental And Industrial Hygiene Technician

September 7, 2022

Our Great Falls, Montana office has an immediate full-time opportunity for an Environmental and Industrial Hygiene Technician. The Great Falls…

READ FULL ARTICLE >

Welcome Ryan Vosen!

September 27, 2022

Please join us in welcoming Ryan to the Helena office. Ryan is joining the team as an Environmental Engineering Intern.

READ FULL ARTICLE >

Welcome Mark Peterson!

September 8, 2022

Please join us in welcoming Mark Peterson to the Helena office! Mark joins us as a Senior Engineer.

READ FULL ARTICLE >

Environmental And Industrial Hygiene Technician

September 7, 2022

Our Great Falls, Montana office has an immediate full-time opportunity for an Environmental and Industrial Hygiene Technician. The Great Falls…

READ FULL ARTICLE >

Welcome Jarrod Hayes!

August 28, 2022

Please join us in welcoming Jarrod to the Great Falls office. Jarrod is an LSI and joins us as a…

READ FULL ARTICLE >
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