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.

Learn More

Great Falls Water Treatment Plant

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

Learn More

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.

Learn More

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.

Learn More

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.

Learn More
TDH_ServicesDesign2016-02

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

VALUED EMPLOYEES
%
EMPLOYEE OWNED
YEARS IN SERVICE
STATES LICENSED IN
OFFICES

FEATURED PROJECTS

Missouri River Forcemain Crossing Feasibility Study Building

Missouri River Forcemain Crossing Feasibility Study

View this Project

Great Falls Water Main Crossings

View this Project

City of Livingston Engineering Services

View this Project

Van Winkle Stadium & Lambert Fields

View this Project

Montana Avenue Sidewalk Upgrades

View this Project

Riverview Meadows Path Improvements

View this Project

Pomeroy 6th Street Bridge

View this Project

Stites Wastewater System Improvements

View this Project

RECENT NEWS

Spreading Christmas Joy

December 8, 2021

The Lewiston office is once again proud to sponsor two families, through YWCA, this year. We truly enjoy being a…

READ FULL ARTICLE >

Surveyor Technician – Great Falls

December 6, 2021

The Great Falls, Montana regional office of TD&H Engineering has an immediate opportunity for a Surveyor Technician. Duties: Operation of…

READ FULL ARTICLE >

Project Spotlight: Bridge & 14th Streets Site Development

December 2, 2021

Location: Clarkston, WA This multi-use development includes a hotel, commercial storage unit complex, and multiple duplex residential development. Due to…

READ FULL ARTICLE >

Spreading Christmas Joy

December 8, 2021

The Lewiston office is once again proud to sponsor two families, through YWCA, this year. We truly enjoy being a…

READ FULL ARTICLE >

Surveyor Technician – Great Falls

December 6, 2021

The Great Falls, Montana regional office of TD&H Engineering has an immediate opportunity for a Surveyor Technician. Duties: Operation of…

READ FULL ARTICLE >

Project Spotlight: Bridge & 14th Streets Site Development

December 2, 2021

Location: Clarkston, WA This multi-use development includes a hotel, commercial storage unit complex, and multiple duplex residential development. Due to…

READ FULL ARTICLE >

ACEC Montana Award!

December 1, 2021

TD&H Engineering won the 2022 Honor Award in the Studies, Research and Consulting Category from the American Council of Engineering…

READ FULL ARTICLE >