Prince William Parkway at Minnieville Road Interchange
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PWC Works projects reflect our commitment of striving for exceptional customer service, maximizing operational efficiencies, increasing modernization, providing excellent service delivery, and collaborating with the community for a coordinated response that achieves the best possible outcomes for our residents and the overall wellbeing of the county.
What is the Prince William Parkway at Minnieville Road Interchange Project?
The Prince William Parkway at Minnieville Road Interchange Project consists of constructing a grade-separated interchange at Minnieville Road (Route 640) and Prince William Parkway (Route 294).
The proposed interchange will be a Single Point Urban Interchange (SPUI) with Prince William Parkway traveling under Minnieville Road. The project will improve capacity at the intersection, which has heavy through and turn movements. It will also accommodate the Prince William Parkway at Minnieville Road Interchange increase in future traffic due to the proposed development of a multi‐use, walkable neighborhood commercial center with surrounding residential use, known as the Quartz District, on the 145‐acre site in the northwest quadrant of the intersection.
The project supports the county’s Comprehensive Plan which identifies the intersection of Prince William Parkway and Minnieville Road as a proposed interchange location. It will be administered by the county under a VDOT Extraordinary Land Use Permit (ELUP) with the purpose of relieving existing and proposed traffic congestion as well as accommodate an increase in future traffic.
The project is expected to achieve final completion in twenty-six months from the issuance of NTP to the Contractor.
Summer 2026 construction will include the following detours:

What Remains Open
- All through‑traffic on Minnieville Road and Prince William Parkway
- All right‑turn movements in every direction
- Left turn from Prince William Parkway eastbound to Minnieville Road southbound
Left‑Turn Restrictions
- All other left‑turn movements are restricted at the intersection. Drivers who normally make these left turns will be directed to use the temporary detour route.
Temporary Detour Road
- A temporary detour road will be constructed on Elm Farm Road. This detour will provide an alternate connection between Minnieville Road and Prince William Parkway while left turns are restricted at the main intersection.
Key Components of the Prince William Parkway at Minnieville Road Interchange Project
Key project components include, but are not limited to:
- Roadway widening and reconstruction
- Construction of a bridge underpass and retaining walls (soil nail walls)
- Storm drainage and culvert systems
- Traffic signals, intelligent transportation systems (ITS) and roadway lighting
- Duct bank construction and utility relocations
- Sidewalks, shared-use paths and pedestrian facilities
- Temporary detour roads
- Improvements to Elm Farm Road
- Demolition of existing structures
Success Criteria for the Prince William Parkway at Minnieville Road Interchange Project
Faster Commutes: A new interchange means less congestion and smoother traffic flow.
Safer Roads: Upgraded signals, lighting, and bridge design improve driver and pedestrian safety.
Better Walkability: New sidewalks and shared-use paths make it safer to walk and bike.
Improved Access: Easier access to homes, businesses and the future Quartz District.
Neighborhood Relief: Less cut-through traffic in nearby residential areas.



