| State Highway OSR | ||||
|---|---|---|---|---|
| Old San Antonio Road | ||||
| Route information | ||||
| Maintained by TxDOT | ||||
| Length: | 62.0 mi[1] (99.8 km) | |||
| Existed: | 1942 – present | |||
| Major junctions | ||||
| West end: | SH 21 near Bryan | |||
| I-45 near Cross Roads | ||||
| East end: | SH 21 at Midway | |||
| Location | ||||
| Counties: | Brazos, Robertson, Leon, Madison | |||
| Highway system | ||||
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Highways in Texas
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State Highway OSR (SH OSR) is a state highway in the U.S. state of Texas. The route is the section of the Old San Antonio Road in east central Texas that is maintaned by the Texas Department of Transportation. While a majority of the original Old San Antonio Road (that is, the section of the road that is not private property) follows State Highway 21, State Highway OSR provides a routing close to the original alignment of the road near and around the Bryan-College Station metropolitan area.[1]
From the east (i.e., traveling toward San Antonio), SH OSR begins in Midway in Madison County, at its junction with SH 21. It traverses northwest to an intersection with Interstate 45. It then travels southwest through the town of Normangee in Leon County, and crosses U.S. Highway 190 and State Highway 6 north of Bryan. After skirting Robertson County, the highway ends at another junction with Highway 21 in Brazos County, just east of the Brazos River.
"OSR" is the only state highway in Texas with a completely alphabetical designation and one of only two where the designation begins with a letter (Texas State Highway NASA Road 1 being the other with a beginning letter).
| County | Location | Mile[2] | Destinations | Notes |
|---|---|---|---|---|
| Brazos |
0.0 | SH 21 – Caldwell, Bryan | ||
| 4.2 | FM 1687 (Sandy Point Rd) | |||
| Brazos along Robertson County line |
8.0 | SH 6 / US 190 – Hearne, Bryan | ||
| 12.1 | FM 2223 south | |||
| 18.8 | FM 46 north – Wheelock | |||
| 27.3 | FM 1940 north | |||
| Madison along Leon County line |
31.1 | FM 1452 east | ||
| Normangee | 37.2 | FM 3 west | ||
| 37.5 | FM 39 – Jewett, North Zulch | |||
| 39.4 | FM 2289 east | |||
| 46.3 | FM 2485 north | |||
| 48.0 | I-45 – Centerville, Madisonville | |||
| Madison |
50.3 | SH 75 | ||
| 54.8 | FM 579 north | |||
| 57.2 | FM 2346 south | |||
| 58.1 | FM 1119 north | |||
| Midway | 62.0 | SH 21 – Madisonville, Crockett | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | ||||
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