Texas Park Road 4
PR 4 highlighted in red | ||||
| Route information | ||||
| Maintained by TxDOT | ||||
| Length | 15.5 mi (24.9 km) | |||
| Existed | June 22, 1937–present | |||
| Major junctions | ||||
| West end | SH 29 | |||
| East end | US 281 | |||
| Location | ||||
| Country | United States | |||
| State | Texas | |||
| Counties | Burnet | |||
| Highway system | ||||
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Park Road 4 Historic District | ||||
Park Road 4 as it descends into Hoover's Valley. | ||||
| Location | PR 4 from US 281 to SH 29 & Longhorn Cavern State Park | |||
| Coordinates | 30°42′3″N 98°22′51″W / 30.70083°N 98.38083°W | |||
| Area | 953 acres (386 ha) | |||
| Built | 1934-1942 | |||
| Architect | Merrill E. DeLonge, et al. | |||
| NRHP reference No. | 10001221 | |||
| Significant dates | ||||
| Added to NRHP | February 7, 2011 | |||
| Designated NNL | 1971 | |||
Park Road 4 (PR 4) is a 15.5-mile-long (24.9 km) park road in western Burnet County, Texas that travels through and provides access to Longhorn Cavern State Park and Inks Lake State Park. The highway connects State Highway 29 (SH 29) to U.S. Route 281 (US 281). The highway was constructed between 1934 and 1942 by the Civilian Conservation Corps (CCC), Works Progress Administration (WPA) and Texas State Highway Department (TSHD).