I-65 South ramp closures and overnight lane reductions in Louisville scheduled through March 25

Work zone changes begin near Spaghetti Junction as crews prepare for the I-65 Central Corridor Project

Several temporary closures and lane reductions are affecting Interstate 65 South in and near downtown Louisville through late March as construction activity accelerates ahead of a larger interstate rebuild scheduled for summer 2026. The changes are centered just south of the I-64/I-65/I-71 interchange, commonly known as Spaghetti Junction, and are tied to bridge foundation work near Brook Street and Kentucky Street.

The current round of restrictions is designed to support early-stage construction tasks, including barrier wall placement, temporary pavement striping and foundation installation. A key element of the work involves micropiling—deep foundation drilling and grouting intended to increase stability and load capacity for a new bridge structure in the corridor.

What is closing, when it closes, and when it reopens

• Overnight lane reductions on I-65 South: Through Wednesday, March 25, the roadway just south of Spaghetti Junction is reduced to one southbound lane overnight from 7 p.m. to 6 a.m. Daytime conditions are scheduled to return to two open lanes.

• I-65 South off-ramp to East St. Catherine Street (Exit 135): Closed starting at 12 a.m. on Wednesday, Feb. 25, and scheduled to reopen Wednesday, March 25.

• I-65 South on-ramp from South First Street near East Jacob Street: Closed starting at 12 a.m. on Wednesday, Feb. 25, and scheduled to reopen Wednesday, March 25.

Motorists should expect slower travel during overnight work periods and should follow posted detours and work-zone signage while the ramps remain closed.

How these closures fit into the larger I-65 construction timeline

The late-winter restrictions are occurring in advance of a major traffic impact planned for summer 2026 as part of the I-65 Central Corridor Project. State transportation officials have announced plans to temporarily shut down a roughly five-mile segment of I-65 between Jefferson Street and Interstate 264 during June and July 2026 to replace aging bridges and accelerate construction. The work in 2026 is expected to be among the most disruptive phases, with detours routing longer-distance traffic to parallel interstates.

For drivers, the immediate takeaway is that the overnight bottleneck south of Spaghetti Junction and the two ramp closures will remain in place through March 25, while broader, longer-duration interstate closures are expected later in 2026 as the corridor project advances.