A routine Sunday run through the Sierra foothills turned into a diesel-soaked headache when a semi tanker began leaking fuel on westbound Interstate 80 near Colfax, forcing a full closure and backing up traffic for miles. Drivers reported near-skids on the slick pavement before crews shut down lanes for an emergency cleanup. Vehicles were diverted through Secret Town and onto local roads toward Colfax, creating long delays for motorists heading over the hill. Cleanup and reopening efforts stretched into the early afternoon.
According to The Sacramento Bee, a California Highway Patrol incident log shows the tanker began leaking at about 10:38 a.m. near the junction with Highway 174 after the driver hit something that ruptured the bottom of the fuel tank. The Bee reported that roughly 100 to 120 gallons of diesel spilled across the roadway. The outlet noted that another driver nearly lost control after hitting the slick, and that officials ordered a hard closure at about 10:50 a.m. so crews could work the scene safely.
Where Lanes Were Closed And Detours Set
Traffic information from Caltrans showed westbound I-80 closed at the junction with SR-174 in Colfax and urged drivers to find alternate routes. Local coverage from KCRA reported that Caltrans District 3 shut down westbound lanes from Secret Town to Highway 174 and that the CHP Gold Run office warned the Highway 174 on- and off-ramps were affected. Traffic was routed off the freeway onto frontage and local roads, including Secret Town and Rollins Lake, leading to long backups for weekend travelers.
Cleanup And Safety On The Highway
Crews spread absorbent materials and set up traffic control to contain the spill, and cleanup was still underway into the early afternoon, according to The Sacramento Bee. The Bee’s review of the CHP log noted that responders initially kept one lane open because the spill was confined to the second lane, but a full closure was later ordered to give workers more room. Officials also warned there was a possibility of another hard closure at Rollins while crews continued the cleanup, and they did not give a firm reopening estimate early in the afternoon.
What Drivers Should Do
Drivers planning to head west on I-80 from Auburn are being urged to check Caltrans or its QuickMap service for the latest closure and detour information and to consider delaying trips until all lanes are back open. Local coverage advised motorists that detours through Secret Town and Colfax will add time and can funnel slow-moving traffic onto two-lane roads. Officials are asking drivers to follow temporary traffic controls and to steer clear of any visible fuel on the pavement to reduce the risk of losing control or damaging their vehicles.
Why This Stretch Keeps Snaring Traffic
This piece of I-80 has a track record of trouble, with truck crashes and fires periodically shutting down westbound lanes near Secret Town and Gold Run and tangling traffic during busy travel periods. A 2025 crash that blocked all westbound lanes near Rollins Lake Road was among several incidents highlighted in local coverage, a reminder of why Caltrans and the CHP frequently caution motorists to be ready for sudden closures on the mountain corridor.
