SAN DIEGO – A 30-feet-wide sinkhole formed on the Mesa College off-ramp from northbound Interstate 805 Monday morning.
California Highway Patrol officers blocked access to the Mesa College/Kearny Villa Road off-ramp around 8:30 a.m. due to the massive hole in the road.
“It’s affecting the number two lane of the off-ramp. We didn’t know if this would affect the number one so we shut the off-ramp completely down,” said California Highway Patrol Sgt. Joseph Aboy.
Caltrans workers were seen on the ramp investigating the damage created by the sinkhole that was about 20 feet deep. Officials said the sinkhole has potential to get larger and will be working to repair it through the night.
“We had a damaged culvert that’s back here up in the canyon. So that’s actually what caused the sinkhole. So water came through the failed culvert which is like a pipe. The pipe had probably failed a while back and then it moved the material that’s underneath the roadway and that’s what caused the sinkhole,” said Caltrans spokesperson Hayden Manning. “We have notified the hospital and let them know that it’s still going to probably be closed until tomorrow so they can let their patients know that it’s going to remain closed and if they need to get here, take a little bit of extra time for their commute.”
The off-ramp is used by ambulance drivers who need to take patients to Rady Children's Hospital and Sharp Memorial Hospital. A CHP sergeant suggested drivers use the detour of northbound I-805 to northbound state Route 163, exit Balboa Avenue and turn right on Kearny Villa Road.
The offramp will remain closed through Tuesday morning's commute as crews continue to make repairs, Caltrans announced late Monday.