Rating:
3 votes

Spring Mountain Road Bridge

Photos 

Spring Mountain Rd

Upper bridge of three, upstream face looking NW.

Photo taken by Craig Philpott in September 2009

Enlarge

BH Photo #145841

Map 

Facts 

Overview
Stone arch bridge over York Creek on Spring Mountain Road in Saint Helena
Location
Napa County, California
Status
Open to traffic
History
Built 1903; rehabilitated 1935
Design
Stone arch
Dimensions
Length of largest span: 28.9 ft.
Total length: 33.1 ft.
Deck width: 26.9 ft.
Approximate latitude, longitude
+38.50708, -122.49192   (decimal degrees)
38°30'25" N, 122°29'31" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/544299/4262201 (zone/easting/northing)
Quadrangle map:
Saint Helena
Average daily traffic (as of 2012)
1,500
Inventory numbers
CA 21C-113 (California bridge number)
BH 11213 (Bridgehunter.com ID)
Inspection report (as of May 2016)
Overall condition: Good
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Sufficiency rating: 55.6 (out of 100)
View more at BridgeReports.com

Categories 

Arch (11,362)
Built 1903 (487)
Built during 1900s (6,448)
California (2,349)
Deck arch (10,586)
Flared (405)
Napa County, California (77)
Open (37,496)
Owned by city (4,663)
Span length 25-50 feet (13,976)
Stone arch (2,690)
Total length 25-50 feet (10,118)

Update Log 

  • December 25, 2011: Updated by Craig Philpott: corrected location
  • September 4, 2009: New photos from Craig Philpott

Sources