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Interstate 37 Travel Guide

Interstate 37 (abbreviated I-37) is a 143.0-mile (230.1 km) intrastate Interstate highway located within the U.S. state of Texas. The highway was first designated in 1959 with construction beginning in the 1960s and completed in the 1980s. It begins in Corpus Christi at U.S. Route 181 (US 181) and State Highway 35 (SH 35), and heads north to San Antonio, where it en ... more.


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