 State Highway OSR | ||||
|---|---|---|---|---|
| Old San Antonio Road | ||||
 SH OSR; highlighted in red | ||||
| Route information | ||||
| Maintained by TxDOT | ||||
| Length | 61.918 mi[1] (99.647 km) | |||
| Existed | 1942[1]–present | |||
| Major junctions | ||||
| West end |  SH 21 west of Bryan | |||
| East end | SH 21 at Midway | |||
| Location | ||||
| Country | United States | |||
| State | Texas | |||
| Counties | Brazos, Robertson, Leon, Madison | |||
| Highway system | ||||
| ||||
State Highway OSR (SH OSR) is a 61.918-mile (99.647 km) non-numbered state highway in southeastern Texas, United States, that forms a northern loop off of Texas State Highway 21 (SH 21).
The route is the section of the Old San Antonio Road in east-central Texas that is maintained by the Texas Department of Transportation. While most of the original Old San Antonio Road (that is, the section of the road that is not private property) follows SH 21, SH OSR provides a routing close to the original alignment of the road near and around the Bryan-College Station metropolitan area.[1]
"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).
- ^ a b c Transportation Planning and Programming Division (n.d.). "State Highway OSR". Highway Designation Files. Texas Department of Transportation. Retrieved October 25, 2010.