High Quality Content by WIKIPEDIA articles! State Highway 151, or SH 151, also known as the Raymond E. Stotzer Jr. Freeway is a 10.7-mile (17.2 km) state highway in the U.S. state of Texas that runs from Loop 1604 to U.S. Highway 90 (US 90) in San Antonio. SH 151 is a limited-access freeway for its entire length with the exception of its junction with Loop 1604 at its western terminus where a traffic light controls the junction. The routing of the freeway was first conceived in 1983 and construction was conducted in phases through the 1980s and 1990s until completion in 2004. The freeway provides access to the western part of San Antonio, the Sea World theme park, Chase, and the future site of a Microsoft data center.