A traffic collision on westbound Interstate 210 at the Seco Street off-ramp brought traffic to a stop late Wednesday night, Sept. 16, 2026. The collision was reported at 11:11 p.m. in the Altadena California Highway Patrol area, with an ambulance listed as en route.
The incident location was identified as the westbound 210 connection at Seco Street. CHP dispatch information did not specify the number or types of vehicles involved.
At 11:22 p.m., a CHP update reported that all westbound lanes were stopped at the Seco Street off-ramp. The dispatch did not provide additional details about injuries or the circumstances of the collision.
The available CHP information documented the roadway shutdown and emergency medical response but did not indicate when the lanes would reopen. No other traffic effects were included in the dispatch updates.
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