|From Route 15 in Haymarket to Route 29 in Gainesville|
Project at a Glance
Est Completion Date
Lengths and Limits
0.5 mi west of Rt. 15 to 1.0 mi east of Rt. 29 (approx. 4.8 miles)
I-66 Widening Begins in Prince William County. View the press release.
About the Project
This project will add one high occupancy vehicle (HOV) lane and one general purpose lane to I-66 in each direction from just west of Route 15 to just west of Route 29 in Prince William County (about 2.6 miles). Additional work will continue to 1.0 mile east of Route 29 to provide appropriate pavement markings for the ultimate section. This will bring I-66 to a total of four lanes in each direction through this area (see typical section below), improving traffic flow to and from Haymarket, western Prince William and eastern Fauquier counties.
The project also includes:
- Modifications to the existing westbound exit ramp at Route 15 (providing dual left turn lanes and a right turn bay), which will be constructed first.
On I-66 Mainline:
- 12-foot paved shoulders
- Reconstruction of two overpasses at Catharpin Road and Old Carolina Road/S. Jefferson Street to include a ten-foot shared-use path on each bridge
- Intelligent Transportation Systems (ITS) components for managing traffic volumes, improving flow and enhanced incident response
- Overhead sign structures
- Utility relocations
- Storm drainage and storm water management facilities
- Retaining walls, sound barriers and roadway lighting on the two overpasses
On or about April 7, 2014, construction will begin on the I-66 westbound off-ramp to Route 15 in the Town of Haymarket to provide an additional left turn lane. Work will proceed behind barrier during daytime hours. Motorists can expect a left shoulder closure and occasional off-peak lane closures for the next couple of months.
Beginning on or about April 13, 2014, first the I-66 westbound lanes and shoulders will be milled and overlaid, followed by the same for the I-66 eastbound lanes and shoulders. This work will be performed at night with lane closures for approximately six to eight weeks and will not impede rush hour traffic.
All work is weather permitting.
Preliminary Engineering $2.3 million
Right of Way $700,000
Construction $66.5 million
Total: $69.5 million
Design approval - 2011
Award Design-Build Contract - August 2013
Begin construction - April 2014
Complete construction - Fall 2016
Draft environmental document (Categorial Exclusion)
Air quality analysis report
Noise analysis report , noise abatement design report and soundwall treatment samples
Cultural resources survey report
Appendix A | B | C | D
Public hearing brochure (July 2011) and Comments summary and responses
Project plan sheets (5MB)
State Project Number: 0066-076-003, P101, RW201, C501, B674, B675 Federal Project Number: NH-5A01(194) UPC: 93577