Project Map
Project Map
Project Fast Facts
  • Status:
  • County: Wake
  • Type of Project: New interchange
  • STIP Number: R-2635D
  • Completion Date:
    Late 2016 (estimated)
Old Holly Springs-Apex Road Interchange


The North Carolina Department of Transportation (NCDOT) has begun the planning and engineering studies to convert the existing grade separation of Old Holly Springs-Apex Road (SR 1153) and Triangle Expressway/Toll N.C. 540 to an interchange. The project would also construct auxiliary lanes along the Triangle Expressway between U.S. 1 and the N.C. 55 Bypass, a distance of approximately 2.0 miles. The central purpose of the Access 540 project is to improve access and roadway connectivity in response to planned and anticipated development in southern Apex.

Latest News and Updates

Planning, design and environmental studies are currently underway. This includes developing a purpose and need statement, examining alternatives and analyzing the environmental effects of those alternatives. The purpose of the environmental studies is to provide the public and decision makers with appropriate and relevant information used to make an informed decision on a Preferred Alternative to select for implementation.

A newsletter has been distributed announcing the start of project studies and encourage interested stakeholders to provide their comments on a number of topics. The newsletter and comment form are below.

News Releases

  • Currently, no recent news releases.

Project Overview and Purpose

Project Schedule
Environmental Assessment Winter 2014*
Finding of No Significant Impact Spring 2015*
Construction Let Spring 2015*
Open to traffic Late 2016*
* dates subject to change

Traffic along Old Holly Springs-Apex Road is projected to increase by over 2,100 percent – from 1,900 Average Annual Daily Traffic (AADT) in 2010 to 43,000 AADT in 2035. The increase in traffic is due to planned and anticipated development in southern Apex. Currently, motorists desiring to access the Triangle Expressway from Old Holly Springs-Apex Road must follow a 4.5 to 5.5-mile path depending on the route chosen. The proposed interchange project would provide a direct local north-south connection between Old Holly Springs-Apex Road and the Triangle Expressway.

The proposed auxiliary lanes along Triangle Expressway would improve traffic flow and reduce vehicle conflicts. This includes providing an additional lane for entering and exiting traffic that is separate from the through lane.

Estimated Cost

The project is estimated to cost $19.6 million. Final costs will be determined during final design.

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Contact Information

  • Telephone: (919) 707-6025
  • Email: Contact Us
  • Address: 1548 Mail Service Center, Raleigh, NC 27699-1548

Resources for Local Property Owners

In many cases, it is inevitable that a certain amount of private property must be acquired. The displacement of homes and businesses is minimized to the extent practicable. The following brochures will answer questions about this process.