Two crashes occurred within minutes of each other Monday, slowing the commute for many drivers using southbound Interstate 5.
The first crash happened at 7:10 a.m. according to the California Highway Patrol.
Traffic slowed and a woman driving a white Honda Civic swerved to avoid a car in front of her, hitting the center divide.
Two motorcycles hit the Civic from behind. Both motorcyclists were transported to Scripps La Jolla, unknown injuries.
The second accident happened after two sedans collided trying to avoid first accident the CHP said.
An hour later, the gridlock had reached as far north as Palomar Airport Road in Carlsbad according to SigAlert.
NBC 7’s Whitney Southwick said commuters can find an alternate route south using Coast Highway or Camino Real to Manchester.