Texas State Highway Spur 581

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State Highway Spur 581 marker

State Highway Spur 581
Route information
Length7.829 mi[1][a] (12.600 km)
ExistedMarch 26, 1991[1]–present
Major junctions
South end I-35 / FM 1583 in Derby
North end BL I-35 / FM 140 in Pearsall
Location
CountiesFrio
Highway system
Spur 580Spur 586

Spur 581 is a state highway spur located in Frio County.

Route description[edit]

Spur 581 begins at I-35/FM 1583 in Derby. The highway runs to the north, paralleling both I-35 and a line of the Missouri Pacific Railroad, crossing the rail line north of Derby near County Road 3410. South of County Road 3201, Spur 581 passes by McKinley Field before entering Pearsall. Just north of the Pearsall city limits, the highway has an intersection with FM 1582. Spur 581 runs north through town on Oak Street before ending at an intersection with BL I-35/FM 140 near the town square.

History[edit]

Spur 581 was designated on March 26, 1991, with the mileage being transferred from US 81 when that highway was decommissioned south of Fort Worth.[2]

Junction list[edit]

The entire route is in Frio County.

Locationmi[3]kmDestinationsNotes
Derby0.00.0 I-35 / FM 1583 west – CotullaI-35 exit 91
Pearsall7.411.9 FM 1582 east
8.814.2 BL I-35 / FM 140 (Comal Street) – Uvalde, Charlotte
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Notes[edit]

  1. ^ The certified length given is shorter than the actual mileage as TxDOT considers Spur 581 to be discontinuous at the Interstate 35 frontage road from FM 1583 to the Missouri Pacific Railroad instead of being concurrent with it.

References[edit]

  1. ^ a b Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 581". Highway Designation Files. Texas Department of Transportation. Retrieved July 11, 2017.
  2. ^ Transportation Planning and Programming Division (n.d.). "U.S. Highway No. 81". Highway Designation Files. Texas Department of Transportation. Retrieved July 11, 2017.
  3. ^ Google (July 11, 2017). "Overview Map of Spur 581" (Map). Google Maps. Google. Retrieved July 11, 2017.