Route 29 at Route 666, Culpeper CountyConstruction of Interchange
Est Completion Date
August 23, 2017
$18.7 million construction contract; $35.3 million total estimate
Lengths and Limits
0.72 mile; from 0.09 mile west of Rogers Road to 0.15 mile east of Cyclone Way
Chemung Contracting Corp. of Mitchells
Office of Communications
VDOT completed construction of this project on Aug. 23, 2017. The project replaced the at-grade intersection of Routes 29 and 666 with a diamond interchange to improve safety and capacity.
Construction of the new interchange raised Route 666 to an overhead crossing of Route 29 and widened the roadway to four lanes divided by a 28-foot raised median. The project included adding bike lanes on both sides of the road, as well as a five-foot-wide sidewalk on the south side and a 10-foot-wide shared use path on the north side.
In 1970, when the portion of Route 29 known as the Culpeper Bypass was widened to four lanes, a diamond interchange was envisioned for future construction at this intersection. This project became a priority in 2008 with the opening of Eastern View High School and the associated increase in vehicle, pedestrian and bicycle traffic.
A 2009 interchange study and an interchange justification request, prepared in 2011, explored four different interchange designs: diamond, partial cloverleaf, single-point urban and roundabout. The diamond interchange was recommended due to its lowest initial cost, shortest construction period, flexibility for future modifications and familiarity to motorists.
June 2015 – October 2015
Utility, shoulder and bridge construction work will require intermittent lane closures.
August 2015 – March 2016
Roadway widening and reconstruction will reduce speed limits on Routes 666 and 29.
April 2016 – September 2016
Ramp and Route 666 construction on the east and west sides of interchange, in conjunction with a new traffic pattern on Poor Farm Road, will prepare for traffic to shift to bridge.
Bridge work on Route 666 completed.
October 2016 – March 2017
Traffic shifted onto Route 666 bridge. Ramps constructed on the east and west sides of the interchange..
March 2017 – July 2017
Traffic switch into its final configuration.
Install final pavement and permanent signs.
News release: Traffic to Begin Using Route 29-666 Interchange Feb. 14
February 10, 2017
News release: New Traffic Pattern on Route 666 Beginning Oct. 21
October 19, 2016
News release: Nalles Mill Rd. In Culpeper Closed May 2-6
April 28, 2016
Aerial diagram of proposed interchange (PDF, 18.9MB)
Aerial diagram of proposed interchange (JPG, 1.73MB)
Aerial graphic of current intersection (PDF, 18.5MB)
Aerial graphic of current intersection (JPG, 1.58MB)
Materials from the August 10, 2011, public hearing:
Public Hearing Brochure (PDF, 248 KB)
Public Hearing Comment Sheet (PDF, 70.7 KB)