The sinkhole on SR 70 is getting larger. With continued water-logged roads and a nearby flooded culvert, Caltrans says the sinkhole has grown to an impressive 8 feet wide and 6 feet deep. It takes up the entire westbound lane between A23 and A24, indefinitely closing that stretch of highway.
Detours are in place at the junction with State Route 49 and the junction with State Route 89, which will redirect traffic through Sierraville and Loyalton. Caltrans District 2 and CHP – Quincy ask that you do not use county roads as a detour due to heavy mud and snow on those roads.
Caltrans District 2 and contractor Hat Creek Construction and Materials, Inc. are working to make the area safe as quickly as possible to allow one-way traffic control through the area. Yet Caltrans says they do not know when that may happen as unsettled weather is expected over the next several days.