Prince William County, Virginia
Dewberry Consultants LLC
University Boulevard Extension
In February 2011, the Prince William County Board of Supervisors awarded Shirley Design-Build LLC (Shirley), a subsidiary of Shirley Contracting Company, LLC, the University Boulevard Extension Project in accordance with the County’s Public Private Transportation Act. Initially, Shirley provided comprehensive preliminary planning and final engineering design and coordination services for the University Boulevard Extension from Sudley Manor Drive to Hornbaker Road and also included improvements to Hornbaker Road from north of University Boulevard to Thomasan Barn Road as well as improvements to numerous connecting roadways. The initial scope of work consisted of roadway and structural design, utility relocation coordination and design, hydraulic and hydrologic as well as floodplain and stormwater management studies, comprehensive environmental investigations and permitting, permit monitoring, right-of-way acquisition as well as construction inspection services.
Construction of the University Boulevard Extension included a 3-lane half section of an ultimate 6-lane roadway between Route 234 and Hornbaker Road and a 4-lane divided roadway on a new alignment between Hornbaker Road and Sudley Manor Drive. Major structures included a single span bridge carrying University Boulevard over a tributary of Broad Run, a double 10′ x 6′ box culvert, a retaining wall to limit impacts to an adjacent property, and 5 corrugated metal arches over an existing gas line. The Team was also responsible for installing 5,300 LF of 30: water main.
The Hornbaker Road segment included demolition of the existing 2-loane roadway and construction of a new 4-lane divided section for a distance of 6,850 LF. Minimizing impacts to existing traffic during construction was a top priority and the Team developed a detained Transportation Management Plan and implemented a three phase maintenance of traffic plan that allowed construction to proceed while maintaining existing traffic.