TD&H 60 Years

Celebrating 60 years of Engineering Excellence

TD&H Engineering Acquires GPD Consulting Engineers

We are thrilled to announce a significant milestone in our journey towards growth and innovation. TD&H has completed the acquisition of GPD, a renowned leader in Mechanical, Electrical and Plumbing Engineering.

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.

Great Falls Water Treatment Plant

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

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.

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.

Princeton's Institute for Advanced Study

The exterior structure of the Rubenstein Commons is composed of 60 unique, 10- to 11-in.-thick precast concrete panels. Ten of the panels are curved, and all were treated with a sandblast finish.

This project won the 2024 PCI Design Award: Best Higher Education/University Building

Alexandria Virginia's Institute for Defense Analysis

The new eight-story office building is a cast-in-place concrete structure with elevated slabs that support the exterior precast concrete architectural cladding panels.

This project won the 2023 APA (Architectural Precast Association) Award for Excellence: for Design and Manufacturing.

Medstar Georgetown University Hospital

The new six-story medical building and surgical pavilion is a cast-in-place concrete structure with elevated slabs that support the 860 exterior precast concrete architectural cladding panels.

This project won the 2023 APA (Architectural Precast Association) Award for Excellence: for Design and Manufacturing