Trains were rerouted Monday morning after a sinkhole was discovered near the trolley tracks in Barrio Logan.
The sinkhole was discovered around 7:15 a.m. along the blue line between the Barrio Logan and Harborside stations. It was likely caused by the heavy weekend rainfall.
Metropolitan Transit System spokesman Rob Schupp said rerouting the trains created 15- to 20-minute delays.
"It was not interfering directly with the train, but those holes were very close to our tracks. So safety is our first concern. We immediately upon discovering them stopped southbound service," Schupp said.
MTS confirmed temporary repairs were completed just after 3 p.m. Monday.
The sinkhole is believed to have developed when a metal pipe collapsed underneath the track. The damage also caused the partial collapse of an access road near the tracks.
Commuters can expect additional delays when MTS makes long-term repairs in the coming months.