News
August 5, 2026

Parsons Selected for Design Role on $227 Million South Carolina Interchange Project

Construction Owners Editorial Team

Highlights

  • Parsons will provide lead design services for the Interstate 526 Long Point Road Interchange Improvements project in South Carolina.
  • The approximately $227 million design-build project will be delivered by the Ames Construction team for the South Carolina Department of Transportation.
  • The project is intended to improve traffic flow, safety and freight movement in the Charleston region.
  • Parsons' design contract represents about 10% of the overall project value.

Improving transportation capacity remains a priority as population growth and freight activity increase across the Southeast. Parsons has been selected to lead the engineering and design work for the Interstate 526 Long Point Road Interchange Improvements project, a major design-build effort commissioned by the South Carolina Department of Transportation.

Design Services for a Key Transportation Corridor

Parsons will serve as the lead designer as part of the Ames Construction design-build team on the approximately $227 million project.

The interchange improvements will modernize the connection between Interstate 526 and Long Point Road in the Mount Pleasant area, one of the Charleston region's busiest transportation corridors.

Engineering services will focus on improving roadway operations, increasing safety and reducing congestion while supporting more reliable travel for passenger vehicles and commercial traffic.

Parsons' portion of the work is valued at approximately 10% of the overall design-build contract.

Freight Mobility and Regional Connectivity

The project is also intended to improve access to the Wando Welch Terminal, enhancing freight transportation to one of the East Coast's major port facilities.

By improving interchange performance and traffic operations, the project is expected to strengthen regional connectivity for businesses, residents and freight carriers while supporting continued economic growth in the Charleston metropolitan area.

The award expands Parsons' transportation portfolio delivered through collaborative design-build partnerships with public agencies and construction contractors.

Why It Matters

Transportation agencies continue to invest in interchange modernization projects that improve roadway safety while supporting increasing freight volumes and regional growth. For construction owners, contractors and engineering firms, the Interstate 526 Long Point Road Interchange Improvements project reflects continued demand for design-build delivery on large highway infrastructure programs that prioritize efficient project execution and minimized impacts on the traveling public.

Source: Parsons.

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