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

Entry Level Structural Engineer

June 21, 2022

The Helena office has an excellent opportunity for a full-time Entry-Level Structural Engineer. The position offers a great variety of…

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Welcome Ethan Mancini to the Helena Office!

June 20, 2022

Please join us in welcoming Ethan Mancini to the Helena office! Ethan will be helping out the Structures, Hydraulics, and…

READ FULL ARTICLE >

Professional Land Surveyor (PLS)

June 15, 2022

The Great Falls office has an excellent opportunity for a full-time Professional Land Surveyor. We have been around since 1965…

READ FULL ARTICLE >

Entry Level Structural Engineer

June 21, 2022

The Helena office has an excellent opportunity for a full-time Entry-Level Structural Engineer. The position offers a great variety of…

READ FULL ARTICLE >

Welcome Ethan Mancini to the Helena Office!

June 20, 2022

Please join us in welcoming Ethan Mancini to the Helena office! Ethan will be helping out the Structures, Hydraulics, and…

READ FULL ARTICLE >

Professional Land Surveyor (PLS)

June 15, 2022

The Great Falls office has an excellent opportunity for a full-time Professional Land Surveyor. We have been around since 1965…

READ FULL ARTICLE >

Surveyor

June 15, 2022

The Great Falls office has an excellent opportunity for a full-time Surveyor. We have been around since 1965 and serve…

READ FULL ARTICLE >
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