Improvement of the I-77/I-40 Interchange, North Carolina

The project to improve the I-77/I-40 Interchange, Iredell County, North Carolina, included the widening from four lanes to eight for about 7.4 miles (11.91 kilometres) and involved improving the system connection by designing and building a partial turbine interchange.
Works were divided between the two interstates as follows:

I-77

• Widening of I-77 for approximately 3.6 miles – median barrier separated
• Interchange modification at Broad Street
• New dual bridges at I-77 over I-40
• New bridges at I-77 over Fourth Creek; US-64 over I-77; and Broad Street over I-77 in Statesville
• Two new ramp bridges over I-77 at the turbine interchange

I-40

• Widening of I-40 for approximately 4.0 miles – median barrier separated
• Bridge widening of I-40
• New bridge on I-40 over Fourth Creek Tributary
• Bridge demolition, existing bridges on I-40 over closed ramp from US64

Contractor: The Lane Construction Corporation (U.S. subsidiary of the Webuild Group)