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

Congrats to Ruth Tuss for 20 years with TD&H Engineering!

May 6, 2021
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Project Spotlight: Missouri & Sun River Water Main Crossings

May 3, 2021

Location: Great Falls, MT Since the 1970s, Great Falls has relied on four river crossings to maintain pressure and flow…

READ FULL ARTICLE >

Employee Spotlight: Dan Wolf

May 3, 2021

Spokane Office How did you first learn about TD&H? “Through a referral from a local agency contact.” What is your…

READ FULL ARTICLE >

Congrats to Ruth Tuss for 20 years with TD&H Engineering!

May 6, 2021
READ FULL ARTICLE >

Project Spotlight: Missouri & Sun River Water Main Crossings

May 3, 2021

Location: Great Falls, MT Since the 1970s, Great Falls has relied on four river crossings to maintain pressure and flow…

READ FULL ARTICLE >

Employee Spotlight: Dan Wolf

May 3, 2021

Spokane Office How did you first learn about TD&H? “Through a referral from a local agency contact.” What is your…

READ FULL ARTICLE >

Employee Spotlight: Marissa Siemens

April 26, 2021

Spokane Office How did you first learn about TD&H? “Growing up in Bigfork, I heard about TD&H through my parents’…

READ FULL ARTICLE >
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