 u.s. highway 57 is a north&ndash;south united states highway that follows a nearly east&ndash;west route in southwest texas. the highway's northern (eastern) terminus is about  south of san antonio, texas, between devine and pearsall, at an intersection with interstate 35 (old u.s. highway 81). its southern (western) terminus is in eagle pass, at the rio grande (rÃ­o bravo), where it continues into piedras negras, coahuila, as mexican federal highway 57. ==history== this  route was originally designated by 1933 as texas state highway 76, which was previously designated in 1926 on a route from nacogdoches to joaquin which was replaced by sh 7 in 1933. from 1942 to 1964, its eastern half was reassigned to farm to market road 394. in 1966, the state changed the route's number to 57 to provide continuity with mexican federal highway&nbsp;57, a similarly-numbered route across the mexican border. in 1970, the route was commissioned as a united states highway, and retained its "57" designation to prevent confusion. the route is signed south&ndash;north, even though the route travels much closer to a west&ndash;east direction. however, mexican federal highway&nbsp;57 travels south to mexico city, so the unusual directional signing again prevents confusion. ==route description== us 57 begins at the eagle pass â piedras negras international bridge in eagle pass. the route travels eastward through eagle pass on garrison street. on the east side of town, it turns northeast briefly and intersects with us 277 business on main street before turning back to the east. six blocks later it reaches the intersection with the main branch of us 277 and fm 3443. us 57 continues east, now concurrent with southbound us 277.{{texas
Transportation_in_Maverick_County,_Texas Transportation_in_Zavala_County,_Texas U.S._Highway_System U.S._Highways_in_Texas