TD&H Engineering

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. 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. 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.

Thomas Dean & Hoskins, Inc. (TD&H) is a consulting firm offering comprehensive civil, structural, and environmental services throughout Idaho, Montana, North Dakota, Pennsylvania and Washington. We serve a diverse clientele ranging from unincorporated communities to large cities and individuals to large corporations. We assist our clients through all project phases, from concept development through construction and warranty assistance. TD&H has been satisfying clients since its incorporation in 1965, all the while building an impressive resume of successful projects.

TD&H Engineering provides a wide variety of surveying services to homeowners, developers, contractors, municipalities, and state or federal agencies. Our in-house Professional Land Surveyors and survey crew staff have the capacity to undertake any major or minor surveying project in both the public and private sectors. Our experienced full-time staff is committed to providing our clients with accurate and timely surveys at the best possible value. Our experience is an important component in completing projects and our surveyors commonly work together with various technical teams, whether in-house or directly with a broad spectrum of clients, to provide a functional and economic approach to completing surveying projects.

Our professionally licensed structural engineers utilize the latest in technology to provide safe design and innovative solutions for industrial, government, medical, residential, and educational projects. From residential homes to schools, hospitals, and bridges. No project is too big or small. We have a reputation for providing quality, timely structural engineering design services. TD&H Engineering is highly qualified to design, detail, and prepare construction documents, offering full-service structural services.

TD&H believes in a healthy environment, healthy people, and healthy companies. Our staff works with clients and regulatory agencies to determine appropriate strategies to comply with permit requirements and provide creative, yet realistic alternatives to solve pollution problems and improve our environment. Our environmental division encompasses a broad range of services that frequently dovetail with civil engineering projects. We understand how disconcerting it can be to receive a compliance letter or notice of violation from the US EPA or state entity, and our professionals will help you through compliance issues and act as a liaison.

Civil engineering broadly describes several disciplines, including land and site development, stormwater, water, and wastewater systems, subdivisions and water resources. Civil engineering primarily involves the analysis and design of infrastructure that is vital to our everyday lives. TD&H municipal engineers provide local governments with innovative and sustainable solutions to address regulatory compliance issues, aging infrastructure and growth. Our collective team has extensive experience negotiating permitting requirements, preparing design and construction documents, and providing construction oversight to ensure improvements are completed to the expectations of the engineer, review authority, and ultimately the utility owner.