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Grizzly Dome Tunnel

Photos 

Grizzly dome tunnel

West Portal

Photo taken by Craig Philpott in March 2010

Enlarge

BH Photo #157253

Map 

Facts 

Overview
Tunnel under Grizzly Dome on State Route 70
Location
Plumas County, California
Status
Open to traffic
History
Built 1936
Design
Fourteen foot clearance hardrock tunnel
Dimensions
Span length: 390.1 ft.
Total length: 390.1 ft.
Vertical clearance above deck: 14.0 ft.
Approximate latitude, longitude
+39.86918, -121.37330   (decimal degrees)
39°52'09" N, 121°22'24" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/639122/4414503 (zone/easting/northing)
Quadrangle map:
Soapstone Hill
Elevation
1763 ft. above sea level
Inventory numbers
CA 09-1 (California bridge number)
BH 44347 (Bridgehunter.com ID)

Update Log 

  • December 16, 2010: New Street View added by Kevin Pope
  • October 31, 2010: New photo from Craig Philpott
  • March 6, 2010: Updated by Craig Philpott: Added photos

Sources