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 1931, 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.

Junctions[edit]

County Location mi km Destinations Notes
Dallas Garland 0.000 0.000 SH 78 – Dallas, Sachse
Rowlett 4.4 7.1 Pres. George Bush Tpk. – Richardson, Dallas
Rockwall Rockwall 10.3 16.6 SH 205 – Lavon, McLendon-Chisholm
11.5 18.5 FM 1141
13.0 20.9 FM 3549
Fate 15.1 24.3 FM 551
18.1 29.1 FM 552 – Rockwall
18.3 29.5 FM 1138 – Nevada
Royse City 19.6 31.5 FM 548 – McLendon-Chisholm, Forney
Collin 20.5 33.0 FM 1777 – Josephine
Hunt 22.8 36.7 FM 2642 – Royse City
Caddo Mills 27.3 43.9 FM 1565 – Union Valley
27.6 44.4 FM 6 – Josephine
28.2 45.4 FM 36 Southern end of FM 36 concurrency
28.3 45.5 FM 36 – Floyd Northern end of FM 36 concurrency
33.2 53.4 FM 1570 – Greenville, L-3 Communications
33.6 54.1 FM 3211
Greenville 35.0 56.3 US 69 / US 380 – Denison, McKinney
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

  1. ^ Texas Department of Transportation, [1]