Texas Spur State Route 366 is a un-signed state highway in Downtown Dallas. This highway runs from Interstate 35E/U.S. Rt. 77 to un-signed Interstate 345/U.S. Rt. 75. The Texas Department of Transportation says this highway is aprox. 1.61 miles long. TX SP St Rt 366 passes through the following town in Dallas County. Dallas TX SP St Rt 366 is not multi-plexed in Dallas County. TX SP St Rt 366 intersects the following highways in Dallas County. Interstate 35E, at Dallas. U.S. Rt. 77, at Dallas. Interstate 345, at Dallas. U.S. Rt. 75, at Dallas.
SB I-35E/U.S. Rt. 77 at TX SP St Rt 366. EB TX SP St Rt 366 in Downtown Dallas.
