The street was closed Tuesday night in both directions from Stocker Street to Rodeo Road in Baldwin Hills.
Crews filled the hole with dirt Wednesday morning, and all lanes reopened just before 7 a.m. Officials said that is a temporary fix, and there's a possibility they may have to close down the road in the future to do different sections of repairs.
Authorities said an LAPD officer discovered the ruptured pavement around 10 p.m. when he went over it with his motorcycle. He was not injured.
Officials from the Department of Water and Power said the cause of the buckling stems from complications from a water main break last month. They said crews went to make the repairs and filled the hole with soil and there was some erosion.