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Recently Completed

Frederick County - I-81 Abrams Creek Bridge and Exit 313 Modification

Widen bridges over Abram's Creek and modify interchange

Project at a Glance

Begin Date
July 2006

Est Completion Date
November 2007


APAC-Atlantic Inc. of Manassas




Project Details

  • The project location is at the Route 50/522 interchange at exit 313.
  • New northbound on-ramp with an extended merge area.
  • Constructed new bridge over Abram’s Creek. This was built adjacent to the existing northbound bridge in the I-81 mainline lanes.
  • Interchange traffic pattern improvement: Ramp from westbound Route 50/522 to southbound I-81 was closed in October 2006. All traffic entering the I-81 southbound lanes now uses the existing ramp from eastbound Route 50/522.
  • Improvements to signalization at various intersections and additional lanes for through and turn lanes at the intersection of Route 50/522 and the I-81 northbound entrance ramp.
  • A new sidewalk is along the south side of Route 50/522.


  • Eliminates traffic weaving in the I-81 southbound acceleration and deceleration lanes under the Route 50/522 bridge.
  • Lengthen northbound on-ramp to allow more room to merge on to I-81 mainline.
  • Allow pedestrian access across the Route 50/522 bridge over I-81.
  • Improve traffic flow with turn-lanes at Route 50/522 and the I-81 entrance ramp

Media Events

  • Media event held on October 10 to preview interchange traffic pattern change which took place in late October.
  • Ribbon cutting on August 16, 2007 celebrating impending bridge completion.
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Page last modified: Oct. 14, 2012