Rating:
1 vote

Myrtledale Road Bridge

Photo 

Myrtledale Road Bridge

Looking NW

Photo taken by Craig Philpott in August 2009

Enlarge

BH Photo #144613

Map 

Facts 

Overview
Concrete arch bridge over Napa River on Myrtledale Road in Calistoga
Location
Napa County, California
Status
Open to traffic
History
Built 1930
Design
Closed-spandrel concrete arch
Dimensions
Length of largest span: 20.0 ft.
Total length: 24.0 ft.
Deck width: 42.0 ft.
Approximate latitude, longitude
+38.59389, -122.59750   (decimal degrees)
38°35'38" N, 122°35'51" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/535051/4271788 (zone/easting/northing)
Quadrangle map:
Calistoga
Average daily traffic (as of 2012)
671
Inventory numbers
CA 21C-66 (California bridge number)
BH 11202 (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: 74.7 (out of 100)
View more at BridgeReports.com

Categories 

Arch (11,442)
Built 1930 (1,643)
Built during 1930s (11,069)
California (2,265)
Closed-spandrel arch (3,728)
Deck arch (10,684)
Napa County, California (82)
Open (38,381)
Owned by county (19,744)
Skewed (4,801)
Span length under 25 feet (6,402)
Total length under 25 feet (2,271)

Update Log 

  • August 8, 2009: New photo from Craig Philpott

Sources