Caltrans I80 update

[Marc MERLIN]

Update in from https://roads.dot.ca.gov/ : 2021:12:12 01:12

Change since last update http://marc.merlins.org/snow/roadinfo/i80/i80.2021:12:12-01:12.diff :
+[IN THE NORTHERN CALIFORNIA AREA & SIERRA NEVADA] **FOR EASTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM CISCO (PLACER CO) TO THE DONNER LAKE INTERCHANGE (NEVADA CO)
+**FOR WESTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM THE DONNER LAKE INTERCHANGE TO 2.5 MI EAST OF THE JCT OF SR 20 (NEVADA CO)

New state from https://roads.dot.ca.gov/ saved at http://marc.merlins.org/snow/roadinfo/i80/i80.2021:12:12-01:12
[IN THE SAN FRANCISCO BAY AREA - SOLANO CO] NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.
[IN THE NORTHERN CALIFORNIA AREA & SIERRA NEVADA] **FOR EASTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM CISCO (PLACER CO) TO THE DONNER LAKE INTERCHANGE (NEVADA CO)
**FOR WESTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM THE DONNER LAKE INTERCHANGE TO 2.5 MI EAST OF THE JCT OF SR 20 (NEVADA CO)
INTERNET MAPPING, LIKE GOOGLE MAPS & MAPQUEST.
ALL WESTBOUND TRUCKS ARE REQUIRED TO STOP AT THE BRAKE CHECK AREA 0.5 MI WEST OF NYACK (PLACER CO) - TO REDUCE THE RISK OF BRAKE FIRES 

Main page with google maps of Caltrans reporting points:
http://marc.merlins.org/snow/tahoe_caltrans.shtml