Thomas Dean & Hoskins, Inc. (TD&H Engineering) 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 Engineering has been satisfying clients since its incorporation in 1965, all the while building an impressive resume of successful projects. TD&H Engineering strives to provide innovative engineering solutions to challenging technical problems by assigning professionals who understand the issues and deliver results. We place a high priority on service and measure our success in terms of client satisfaction.