Rating:
2 votes

Main Street Bridge

Photos 

Main St bridge over Napa Creek

East side of bridge.

Photo taken by Craig Philpott in August 2009

Enlarge

BH Photo #145608

Map 

Facts 

Overview
Stone arch bridge over Napa Creek on Main Street in Napa
Location
Napa, Napa County, California
Status
Open to traffic
History
Built 1860; rehabilitated 1985
Design
Stone arch
Dimensions
Length of largest span: 41.0 ft.
Total length: 55.1 ft.
Deck width: 24.0 ft.
Approximate latitude, longitude
+38.30000, -122.28583   (decimal degrees)
38°17'60" N, 122°17'09" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/562446/4239342 (zone/easting/northing)
Quadrangle map:
Napa
Average daily traffic (as of 2017)
5,972
Inventory numbers
CA 21C-44 (California bridge number)
BH 11201 (Bridgehunter.com ID)
Inspection report (as of August 2017)
Overall condition: Poor
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Poor (4 out of 9)
Sufficiency rating: 48.8 (out of 100)
View more at BridgeReports.com

Update Log 

  • August 23, 2009: New photos from Craig Philpott

Sources 

Comments 

Main Street Bridge, Oldest stone bridge in California?
Posted June 7, 2011, by Craig Philpott (cphilpott [at] puc [dot] edu)

Article today in Napa Valley Register declares this bridge is the oldest stone bridge in California.

http://napavalleyregister.com/news/local/article_491196da-90...