Project Details

Market
Delivery
Lead JV Partner
Role
South Carolina Department of Transportation
Owner
$231 million
Value
January 2015
Start Date
October 2018
Completion Date

Flatiron is managing a joint venture team for the Interstate 85 Interstate 385 Interchange project in Greenville, South Carolina. The design-build project for the South Carolina Department of Transportation will reconfigure the interchange at I-85 and I-385, improving traffic operations and safety for about 194,000 vehicles per day.

The project replaces existing loop ramps with direct-connect, high-level flyover bridges and includes construction of a new collector-distributor roadway along I-85 and I-385. The project also includes reconfiguration and replacement of existing ramps, construction of additional lanes along I-85 and I-385, resurfacing and rehabilitation of I-85. Crews will design and construct 12 new bridges, rehabilitate two existing bridges and construct retaining walls. The project requires extensive attention to traffic maintenance to minimize impact on the traveling public.

The new interchange will relieve congestion and increase safety on the third busiest interchange in South Carolina. The project is the state’s largest transportation infrastructure project in over a decade.

Replacement of existing loop ramps with direct-connect, high-level flyover bridges

Construction of a new collector-distributor roadway

Construction of additional lanes along I-85 and I-385

Resurfacing and rehabilitation of I-85