Grayson County, Texas -- The Texas Department of Transportation (TxDOT) officials have announced an upcoming nightly full closure of the southbound mainlanes beginning at 6:00 p.m. on March 15 until 5:00 a.m. on March 16.

This closure is to permit the switching of the southbound traffic from Spur 503 to US 82 onto the new pavement and moving the concrete barrier. All entrance and exit ramps along this corridor will be closed to traffic and temporary ramps will be constructed.

Detours will be posted for traffic to follow.

After the traffic switch, to access FM 691 and Texoma Medical Center (TMC), traffic will take the Loy Lake Road (Denison) exit and follow the southbound frontage road. Message boards will be in place directing traffic to exit at Loy Lake Road and follow the southbound frontage road to access FM 691 and Texoma Medical Center (TMC).

The southbound exit ramp to Loy Lake Road (Sherman) will also be temporarily closed to traffic.  Traffic will take the Loy Lake Road (Denison) exit and follow the southbound frontage road.

During this period, TxDOT urges drivers to exercise caution. Motorists who travel frequently in this area are asked to pay special attention to all barricades, traffic controls, and signs, and to reduce their speed as they approach and travel through work zones. They should also avoid distractions such as cell phones, eating, drinking, or car audio or navigation systems. TxDOT also asks drivers to remain alert to road crews while navigating through the construction zone.

For more information, please contact Kristen.Prater@txdot.gov or call (903) 737-9213.