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Old Holly Springs-Apex Road Interchange


The North Carolina Department of Transportation (NCDOT) is conducting the planning and engineering studies to convert the existing grade separation at the Triangle Expressway (Toll NC 540) and Old Holly Springs-Apex Road (SR 1153) to an interchange. The project would also construct auxiliary lanes along the Triangle Expressway between the N.C. 55 Bypass and US 1, a distance of approximately 1.5 miles. The purpose of the Access 540 project is to improve accessibility and north-south connectivity within southern Apex by providing a direct local link between the Triangle Expressway and Old Holly Springs-Apex Road.

Latest News and Updates

NCDOT held a public meeting on December 11, 2014 at the Apex Community Center. The purpose of the meeting was to provide an overview of the study process, present information on the alternatives considered, describe the current Recommended Alternative, discuss next steps, and answer questions and receive comments. A handout, comment form, presentation and maps were provided during the meeting. This information can be downloaded below.

NCDOT wants to hear from you. Please complete the comment form and return no later than January 12, 2015 to ensure your comments are considered in the study process. Information on how to submit your comments can be found in the handout and on the comment form.

News Releases

  • Currently, no recent news releases.

Project Overview and Purpose

Project Schedule
Environmental Document February 2015*
Construction Bids Opened May 2015*
Construction Start 2016*
Open to Traffic 2018*
* Note: Schedule is preliminary and subject to change

Traffic along Old Holly Springs-Apex Road is projected to increase substantially – from 1,900 Average Annual Daily Traffic (AADT) in 2010 to 34,900 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 the Triangle Expressway and Old Holly Springs-Apex Road.

The proposed auxiliary lanes along the 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 $31 million, which includes construction, utility modifications, environmental mitigation and right-of-way acquisition. Actual cost will be determined during final design.

Project Library

Finding of No Significant Impact (FONSI) Documents


Contact Information

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

Resources for Local Property Owners

Although the N.C. Department of Transportation works to minimize the number of homes and businesses displaced by a road project, it is inevitable, in many cases, that a certain amount of private property is needed. The following information explains right of way acquisition and answers questions about the process.