Lucile Plane State Jail is a Texas Department of Criminal Justice state jail for women located in unincorporated Liberty County, Texas. It is located on Texas State Highway 321, 5 miles (8.0 km) north of Dayton. The facility, on an approximately 394-acre (159 ha) plot of land, is co-located with the Hightower Prison Unit and the Henley State Jail. Plane is designed to hold 2,144 prisoners. Plane, the first women's state jail to be opened in Texas, was dedicated in June 1995.