As a subconsultant to Volkert, Inc., Alpha & Omega Group provided professional services to design drainage for a new connector road at Guilford Technical Community College. The road tunnels under Guilford College Road, crosses a stream, and connects to Stanford Road.

The challenge, according to Project Manager Glenn Zeblo, PE, was to minimize impacts to the Upper Randleman watershed and existing wetlands, while streamlining erosion control impacts.

A&O conducted a hydraulic and hydrologic study of the nearby stream (Bull Run tributary), to study the impacts of construction and provide design alternatives to convey a 50-year flood event. We designed 1,200 feet of piped drainage to be installed under the curb-and-gutter roadway and a 60-inch reinforced concrete pipe to carry the flow of the stream under the connector road.

A&O coordinated with environmental consultants ECS Southeast for erosion control. Roadway drainage and erosion control were designed according to NCDOT guidelines. Reviewing agencies included NCDOT, NCDEQ, and the City of Greensboro.