Heading north from downtown San Antonio may be a source of headaches over coming weeks. On Tuesday, the Texas Department of Transportation began repairing bridge joints on westbound Interstate 10 between West Popular Street and Fulton Avenue, closing both of the upper-level left lanes, according to the state’s traffic impacts map. The two upper-level left lanes will remain closed through June 30, and drivers are encouraged to use the lower highway level from now until then, according to KSAT.