UPDATE: The ramp has reopened.
SAN FRANCISCO (KRON) — A hazmat spill has closed down the Treasure Island off-ramp on eastbound I-80 Thursday morning, according to officials with the California Highway Patrol.
A mixture of mud and sand on the off-ramp was reported at 4:45 a.m. and the ramp is closed as Caltrans crews work to clean up what was a spill from a dump truck, CHP Officer Vu Williams said.
The mud and sand could be tainted with a chemical.
It is unknown who is responsible for spilling the material since the driver left the scene.
CHP officials are actively looking for the driver or the company responsible. Charges could be filed for failing to secure a load and leaving the scene, officials said.
Drivers who want to exit at Treasure Island will have to go farther east to the toll plaza and turn around and exit from the bridge’s westbound lanes to Treasure Island.
KRON4’s Robin Winston says the spill is causing a major backup that extends down to San Bruno.
CHP officials have not given an estimate for when the ramp will reopen.