OLD US 421 westbound (Mile Point 298.52): Exit ramp closed.

At US 421; I-74 (Greensburg). The exit ramp is closed. Westbound traffic. Follow the detour signs. Look out for construction work. See map for detour(s). Until November 22, 2026 at about 11:45PM EDT. Comment: OLD US 421 westbound at US 421; I-74 (Greensburg). The exit ramp is closed. To. Westbound traffic. Follow the detour signs. Look out for construction work. See map for detour(s). Starting July 17, 2026 at about 12:00AM EDT until November 22, 2026 at about 11:45PM EDT.