The eastbound on- and off-ramps for US-412/Cimarron Turnpike are closed at US-177 (mm 15) in Noble County through summer for ramp reconstruction. Motorists may enter eastbound Cimarron Turnpike from I-35 north of Perry and from US-64 near Morrison.
Additionally, eastbound US-412/Cimarron Turnpike is narrowed to one lane at SH-99 near Hallett today for ongoing surface work. SH-99 ramps remain open.
Eastbound and westbound US-412/Cimarron Turnpike Spur lanes are narrowed to one lane in each direction at US-177 toward Stillwater for the remainder of the summer.