Wetherill Engineering, also known as WEI, offers transportation planning, roadway and bridge design and structural engineering services. The company is certified by the North Carolina Department of Transportation, Tennessee Department of Transportation, city of Raleigh and city of Charlotte. It offers traffic control, pavement marking, permitting, cost estimation and contract administration solutions. Wetherill Engineering s projects include Alltell Cell Towers, Lexington Bridge Replacement, Barber Mills Townhomes, Buies Creek Apartments and Charleston Park Subdivision. The company s staff includes structural designers, hydraulics managers and project engineers. In addition, it operates civil and site design and administration departments. Wetherill Engineering is headquartered in Raleigh, N.C.