USC Transportation announced Wednesday afternoon several freeway and ramp closures taking place over the weekend in order to safely demolish a pedestrian bridge over Interstate 110 at 21st Street. 

While most closures will only take place for a few hours at a time, Wednesday’s announcement updated an earlier release by notifying the community that “the Adams [Boulevard] exit from the 110 south will be closed ALL weekend (instead of one night), from 7:00pm Friday night until 8:00pm Sunday night.”

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From 11 p.m. Friday to 7 a.m. Saturday, southbound I-110 will be reduced to one lane between I-10 and Exposition Boulevard. Crews will begin closing all on-ramps to southbound I-110 and the east and westbound connectors from I-10 around 9 p.m. 

Beginning at 11 p.m. Saturday and extending to 8 a.m. Sunday, southbound I-110 between I-10 and Exposition Boulevard and northbound I-110 between Adams Boulevard and Washington Boulevard will be fully closed. Crews will again begin closing on-ramps and connectors around 9 p.m.

USC Transportation is advising drivers to take alternate routes or public transportation to avoid major disruptions. Two detours — one for northbound and one for southbound drivers — will be in effect during the closures. Those going southbound on I-110 will be directed to exit at the I-10 interchange and reenter at Exposition or Martin Luther King Jr. Boulevard. Those taking I-110 northbound will be directed to exit at Adams Boulevard and either reenter the freeway at Washington Boulevard or access I-10 using Hoover Street.

USC is scheduled to host a number of events this weekend, including men’s basketball versus UCLA and women’s basketball versus Washington at Galen Center.