Watch for Slides, Sat. 12/7

UPDATE: 12:22 PM10[19] 1039 FISH AND GAME ETO APPROX 1 MORE HOUR / FULL CLOSURE NB AND SB

From this photo, it would appear this is the south end of Rain Rocks, south of the Rock Shed, the area that always goes!

Noon: This happened a couple hours ago, but as it has continued raining down here, and even if cleared, is subject to go again. I am guessing this is Chimney Slide, south of Limekiln, but I have no information re exact location.

Tonight & Tomorrow’s Storm

Not as heavy as last weekend…coming in tonight..

Fun little graph of the expected lightning storm on Saturday, 12/7:

A strong jet streak will develop over Central California on Saturday, putting interior NorCal a favorable zone for strong thunderstorm development. (tropicaltidbits.com)

Looks like we might get a sprinkling of thunderstorms, but Yosemite and that area? What fun!

To read the analysis by Daniel Swain of Weather West see: https://weatherwest.com/archives/7020

Chualar Flooding of up to 4 ft causing evacuations

4:30 pm — 101 still closed, in fact a number of places in the area are closed. Look at this CHP log:

A levee broke near Chualar Union School causing flooding in the area. MCSO is currently evacuating some portions of Chualar. The current storm is not helping.

This whole area is a mess with the flooding, people stuck on top of vehicles that are flooded. There are at least 4-5 CHP incidents in this area. Here is one re 101 which is closed both NB and SB near Chualar under 3 ft of water:

Incident: 00248 Type: Roadway Flooding Location: Us101 N / Esperanza Rd Loc Desc: NB AND SB Lat/Lon: 36.595968 -121.545822 

Detail Information
3:32 PM12[21] CPD SNCR WILL NEED TO CLOSE SPENCE X OS, SPENCE X 101
3:31 PM11[20] 1039 MTRY CONFIRMED SO STARTED A BREAK
3:31 PM10[19] A27-012 12 IS 97 TRAFFIC BACKED UP SB 2 MILES OF TRAFFIC BEHIND 12
3:29 PM9[18] OS X 101 IS CLOSED, DETOUR IS RIVER RD
3:26 PM8[16] 12 INQ WHERE SO IS DIVERTING TRAFFIC
3:24 PM7[15] SO CREATED A BREAK DIVERTING VEHS – CPY SCNR
3:19 PM6[14] STARTING A TRAFFIC BREAK SB F/AIRPORT
3:16 PM5[11] [Notification] [CHP]-[10] PER DIST 5 / CANT RESPOND / THEY ARE STUCK IN CHUALAR / THEY DO HAVE A CREW ON ESPERANZA BUT CANT DO ANYTHING /. TOO MUCH WANTER
3:16 PM4[10] PER DIST 5 / CANT RESPOND / THEY ARE STUCK IN CHUALAR / THEY DO HAVE A CREW ON ESPERANZA BUT CANT DO ANYTHING /. TOO MUCH WANTER
3:11 PM3[6] [Notification] [CHP]-MONT SO 1097, NEED TO CLOSE NB AND SB 101 JSO CHUALAR UNDER 3 FT OF WATER
2:57 PM2[4] 1039 CALTRANS DISPATCH
2:55 PM1[2] AFFECTING NB 101 #2 LANE

First Storm Totals

While we will have on and off rain today and tomorrow, with an Atmospheric River returning for another three days on Thursday, here are the totals for the three days ending last night. Note the top place is here on the South Coast of Big Sur — by a long shot. Big Sur Station is number three, and Three Peaks takes the number four spot.

24 hour notice of Highway Closure

Today’s Date: November 29, 2019

District:            05 – Santa Barbara, San Luis Obispo, Monterey, San Benito and Santa       

                        Cruz Counties                                                  

Contact:          Susana Z Cruz (bilingual) or Colin Jones

Phone:            (805) 549-3138 or 549-3189

FOR IMMEDIATE RELEASE

**24-HOUR TRAFFIC ADVISORY**

TEMPORARY CLOSURE OF HIGHWAY 1 AT PAUL’S SLIDE AT 5 PM SATURDAY AND MUD CREEK AT 9 AM SUNDAY

MONTEREY COUNTY — Caltrans has received confirmation from National Weather Service (NOAA) data that a significant storm is in the forecast for the areas of Mud Creek (PM 8.9) and Paul’s Slide (PM 21.6) on State Route 1 in the Big Sur area.

This advisory is to inform the public to be prepared for preemptive closure of the roadway scheduled for 5 pm Saturday, Nov. 30 at Paul’s and 9 am Sunday, Dec. 1at Mud Creek due to a significant storm. A final notice will be sent just prior to the roadway closing. Caltrans will have our Geotech Maintenance and Construction units on call and prepared to inspect/clean up during daylight hours when the storm ends and it is safe to be onsite again.

The gates on either side of Mud Creek and Paul’s Slide will be key locked. These gates will not be manned when the highway is closed. No one, including Emergency Services or Caltrans employees will be allowed access until a proper assessment can be made and any necessary cleanup has been completed.

NOTE: These advisories apply only to the Mud Creek and Paul’s Slide areas with each closure being treated separately—Paul’s Slide will close at 5 pm Saturday, Nov. 30; Mud Creek will close at 9 am Sunday, Dec. 1. Please stand by for additional information.

# # #

nature-flower-blue-motif[1]

Susana Z. Cruz 

Possible Temporary Closure of Highway One

Today’s Date: November 28, 2019

District:            05 – Santa Barbara, San Luis Obispo, Monterey, San Benito and Santa       

                        Cruz Counties                                                   

Contact:          Susana Z Cruz (bilingual) or Colin Jones

Phone:            (805) 549-3138 or 549-3189

FOR IMMEDIATE RELEASE

**48-HOUR TRAFFIC ADVISORY**

TENTATIVE TEMPORARY CLOSURE HIGHWAY 1 AT MUD CREEK/PAUL’S SLIDE

Monterey County — Caltrans has received notification from the National Weather Service (NOAA) that there is a significant storm arriving in approximately 48-hours for the areas of Mud Creek (PM 8.9) and Paul’s Slide (PM 21.6) on State Route 1 in the Big Sur area.

This advisory is for the public to be ready in the event the roadway needs to close due to a predicted significant storm and allow time for the public to prepare for the closure including stocking up on necessary supplies and making plans.

NOTE: At the 24-hour mark, an updated traffic advisory will be sent, either confirming the full closure or providing additional information. These advisories apply only to the Mud Creek and Paul’s Slide areas with each closure being treated separately.

Susana Z. Cruz 

Caltrans District 5

Public Information Officer

Winter Weather Advisory

CAZ517-262200-
/O.NEW.KMTR.WW.Y.0003.191127T0600Z-191128T1800Z/
Santa Lucia Mountains and Los Padres National Forest-
343 AM PST Tue Nov 26 2019

…WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 AM PST THURSDAY ABOVE 2500 FT…

* WHAT…Snow. Total snow accumulations 5 to 8 inches with locally
higher amounts above 4000 ft. Total snow accumulations of 3 to 6
inches between 3000 ft and 4000 ft. Total snow accumulations of
1 to 3 inches between 2500 ft and 3000 ft.

* WHERE…Above 2500 ft in the Santa Lucia Mountains and Los
Padres National Forest in Monterey County.

* WHEN…From 10 PM Tuesday to 10 AM PST Thursday.

* IMPACTS…Slick, snow-covered roads and hiking trails. Hikers,
campers, and outdoor enthusiasts with Thanksgiving week plans in
Santa Lucia Mountains and Los Padres National Forest may
encounter dangerous winter-like conditions above the snow level.
Heavier snow showers could produce limited visibilities.

* ADDITIONAL DETAILS…Significant reductions in visibilities are
possible. Downed trees and power outages possible.

Safety Closures of Highway One before/during storms

Date:         November 5, 2019

District:    District 5 (Central Coast)

Contact:   susana.cruz@dot.ca.gov (bilingual) or jim.shivers@dot.ca.gov

Phone:      (805) 549-3138 or (805) 549-3237

FOR IMMEDIATE RELEASE

CALTRANS PLANS TEMPORARY HIGHWAY 1 SAFETY CLOSURE SOUTH OF BIG SUR WHEN MAJOR STORMS ARE FORECAST

MONTEREY COUNTY— Caltrans plans to temporarily close Highway 1 at Mud Creek (PM 8.9) and/or Paul’s Slide (PM 21.6) south of Big Sur when significant rainfall is forecast by the National Weather Service (NWS) as a safety measure for the public.

When significant storms are forecast by the NWS, Caltrans will send a 48-hour traffic advisory to the public in case the roadway needs to close. This will allow time for the local communities and motorists to prepare for the closure, stock up on necessary supplies and make alternate travel plans. At the 24-hour mark, Caltrans will issue a traffic advisory either confirming the full closure or providing new information. These 48 and 24-hour notices apply only to Paul’s Slide and Mud Creek—each closure will be treated separately (two separate closures, one may open but the other may not, depending on the assessment).

Caltrans will have our Geotech, Maintenance and Construction units on call and prepared to inspect/clear roads of debris during daylight hours when the storm ends and it’s safe to be on site. Gates are installed on either side of Mud Creek and Paul’s Slide that will be locked. These gates will not be manned when the highway is closed. No one, including law enforcement, Emergency Services or Caltrans employees, will be allowed access until a proper assessment can be made and any necessary clean-up completed.

The ongoing restoration projects at Mud Creek and Paul’s Slide have re-established a traversable route over both landslides, but continued movement of the newly-formed slopes and landslide features are expected. Closing the highway during significant rainfall is necessary for the safety of travelers and our workers.

“The heavy rainfall in the winter months of 2017 resulted in significant landslide movement at many spots on Highway 1 along the Big Sur Coast,” said Caltrans District 5 Director Tim Gubbins. “We ask for the community’s patience during these closures.  Caltrans will strive to clear the highway and reopen Highway 1 as quickly as possible when it is safe to do so.”

Motorists should consult Caltrans Quick Map at  http://quickmap.dot.ca.gov for the latest closure information on Highway 1 and all state highways during the wildfire and mudslide season.

Mud Creek (PM 8.9)

Mud Creek had a major landslide on Saturday, May 20, 2017, involving the movement of over 6 million cubic yards of material. The new alignment was built out on the slide material for the middle portion and on a compacted embankment on the south and north ends. The new highway extends out towards the ocean upwards of 250 feet from the original highway. The roadway is 150 to 260 feet above sea level. Natural slopes remaining from the landslide and engineered slopes above and below the roadway are anticipated to experience significant erosion and movement as the new landmass matures.

Paul’s Slide (PM 21.6)

The highway has been reestablished across the landslide but movement of the slopes above and below the roadway continue to push it toward the ocean. Paul’s Slide has been active since January 2017, stabilization measures including creation of additional catchment and temporary stabilization of the Hermitage Wall have been completed.Caltrans expects to reopen to two lanes at Paul’s Slide in December. The signal equipment will be turned off but left in place to allow a quick reactivation if the slide overwhelms the catchment.                                                                                       –Photos below—

Recent photos of Mud Creek Slide, whole (top) and side (above) views from mid-October 2019.

Photos on left (August ’19) and right (mid-October) show Paul’s Slide before and after completion of the cut, respectively. Right photo courtesy of John Madonna Construction.

The next update will occur when the first 48-hour traffic advisory is issued.