Texas State Highway Spur 581
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State Highway Spur 581 | ||||
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Route information | ||||
Length: | 7.829 mi[1][lower-alpha 1] (12.600 km) | |||
Existed: | March 26, 1991[1] – present | |||
Major junctions | ||||
South end: | ![]() ![]() |
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North end: | ![]() |
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Location | ||||
Counties: | Frio | |||
Highway system | ||||
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Spur 581 is a state highway spur located in Frio County.
Route description
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
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
The entire route is in Frio County.
Location | mi[3] | km | Destinations | Notes | |
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Derby | 0.0 | 0.0 | ![]() ![]() |
I-35 exit 91 | |
Pearsall | 7.4 | 11.9 | ![]() |
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8.8 | 14.2 | ![]() |
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1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
Notes
- ↑ 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.