 Chenoweth became an associate of Claudius Crozet (1789–1864), a noted French-born civil engineer who oversaw the design and construction of Virginia's transportation infrastructure of turnpikes, canals, and roads with funding by the Virginia Board of Public Works and the General Assembly of Virginia prior to the American Civil War (1861-1865).He was also strongly influenced by the bridge framing system developed in 1817 by Theodore Burr (1771–1822) — the Burr arch-truss structural design — which improved bridge strength dramatically.Chenoweth's best-known surviving bridge is the Philippi Covered Bridge (1852) spanning the Tygart Valley River and carrying U.S. Route 250 in Philippi.