Plaskett Fire Swells to 8,241 Acres, Closing 54 Miles of Highway 1

Q: What hidden hazards are keeping a 54-mile stretch of Highway 1 closed as the relentless Plaskett Fire ravages the steep Monterey County coast?

The 54-mile closure of Highway 1 is being driven by immediate safety threats beyond the flames themselves: falling rocks, rolling debris and trees weakened by fire along the steep Big Sur coastline. Officials say the Plaskett Fire has backed down toward Highway 1, and firefighting activity is continuing near the road, but the greater danger to drivers is what the fire has destabilized. Heat and burning vegetation have left trees vulnerable to collapse, while the steep slopes above the highway are shedding rocks and other debris. In nearby fire operations, officials also said firing and backburning work has contributed to rockslides, adding to the hazard. The terrain is a major reason the closure is so hard to lift. This stretch of Monterey County coast is narrow, rugged and landslide-prone even in normal conditions. With fire moving through long-unburned, heavy vegetation on steep canyon walls, access is limited and crews must protect structures while also keeping the road corridor safe. Authorities have said Caltrans engineers will need to assess the slopes and remove or blast unstable rocks before reopening can be considered. Until those inspections are completed and firefighters no longer face dangerous roadside conditions, the closure from south of the Little Sur River to south of Salmon Creek is expected to remain in place.

3 articles · Updated · Los Angeles Times · Aug 30

8,241 acres had burned by Saturday afternoon as the Plaskett fire pushed to the edge of Highway 1 south of Plaskett Ridge Road, expanding evacuation orders and warnings across Big Sur.
Red flag weather, low humidity and Big Sur’s steep, hard-to-access terrain drove the rapid spread, while earlier conditions limited aircraft from accurately mapping the blaze.
Highway 1 is now shut from Little Sur River to Gorda, and Los Padres National Forest has imposed an emergency closure for the Monterey Ranger District; two shelters are housing evacuees.
660 personnel are assigned to the Plaskett fire, while the older Timber fire has burned 24,839 acres with 21% containment, keeping pressure on firefighting resources.
Officials say fires in this remote region often last 3 to 8 weeks and can persist until a season-ending rain or snow event.

Sources

Los Angeles Times10h ago

Big Sur Plaskett Fire Grows to 8,241 Acres, Shuts Down Highway 1

KSBW Monterey10h ago

Plaskett Fire Burns 8,241 Acres, 0% Contained Near Highway 1

bigsurkate.blog10h ago

Plaskett Fire, Day 4, 8/29 Evening Update – BigSurKate

4 Sources

What hidden hazards are keeping a 54-mile stretch of Highway 1 closed as the relentless Plaskett Fire ravages the steep Monterey County coast?

With zero containment and rugged terrain fueling the Plaskett Fire, will an emergency declaration arrive in time to save threatened Big Sur communities?

Could the heavy, long-unburned vegetation fueling the explosive Plaskett Fire expose a critical flaw in how coastal wildlands are currently managed?