The diverse group at TD&H’s Lewiston office – engineers, a grant administrator, drafter, surveyor, and administrator – all share a love of the Valley community. We are dedicated to keeping this hidden gem unique while moving it ahead into the future.
RECENT NEWS & Updates
TD&H Honored to Help Out Two Families This Christmas The Lewiston Office is sponsoring two families this year and finds…
READ FULL ARTICLE >TD&H is in the House!
The Lewiston and Spokane offices had a wonderful time highlighting TD&H at the Infrastructure Assistance Coordinating Council (IACC) conference in…
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Project Highlight: Stites Water System Improvements
The City of Stites is currently in construction of water system improvements, which includes a 174,000 gallon, 30-foot diameter, 34-foot…
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Featured Projects
Pomeroy 6th Street Bridge
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Stites Wastewater System Improvements
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Sunnyside Reservoir, Pump Station & Waterline Relocation and Replacement
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