Texas State Highway 66

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State Highway 66 marker

State Highway 66
Route information
Maintained by TxDOT
Length: 35.0 mi[1] (56.3 km)
Existed: by 1933 – present
Major junctions
Southwest end: Texas 78.svg SH 78 at Garland
Northeast end: US 69.svgUS 380.svg US 69/US 380 at Greenville
Location
Counties: Dallas, Rockwall, Collin, Hunt
Highway system
US 66 US 67

State Highway 66 or SH 66 is a state highway running from Garland to Greenville, roughly parallel to Interstate 30. Along the way, it passes through Rowlett, Rockwall, Fate, Royse City, and Caddo Mills. It also twice crosses Lake Ray Hubbard.

History[edit]

SH 66 was previously designated first in 1926 as a route from Bogata northeast through Clarksville toward the Oklahoma town of Idabel. By 1933, this route had been added as a northern extent of SH 37, and was instead assigned along an ambitious route spanning the entire state from Wichita Falls to the Rio Grande near Hidalgo. In 1939, this entire second route was cancelled in favor of U.S. Highway 281.

The current route was designated in 1961, replacing FM 7 and U.S. Highway 67, which was rerouted atop I-30.

Major intersections[edit]

County Location Mile km Destinations Notes
Dallas Garland SH 78
Rockwall Rockwall SH 205
Collin
No major junctions
Hunt Greenville US 69 / US 380
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

  1. ^ Texas Department of Transportation, [1]