The two loop ramps at the I-39/90 and US 12/18 (Beltline) interchange in Madison will be closed nightly from 9 p.m. to 5 a.m. Monday through Wednesday nights (May 10-12). Drivers should follow the signed detour routes.
- I-39/90 southbound exit loop ramp (Exit 142B) to eastbound US 12/18.
- Westbound US 12/18 loop ramp (Exit 267A) to I-39/90 southbound.
The ramp closures and work operations are weather dependent and subject to change.