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Napa River Bridge

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Photos 

New Maxwell bridge

Replacement bridge over Napa River, replacing vertical lift bridge, 2005. Looking NW.

Photo taken by Craig Philpott in August 2009

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Map 

Street View 

Pictures during removal of original bridge 

Submitted by Craig Philpott

http://www.silveradocontractors.com/bridges.shtml

Facts 

Overview
Vertical lift bridge over Napa River on CA 121 in Napa
Location
Napa, Napa County, California
Status
Replaced by new "Maxwell Bridge", 2005
History
Built 1949; rehabilitated 1977, replaced 2005
Design
Original bridge, Vertical lift, replacement bridge concrete
Dimensions
Length of largest span: 131.9 ft.
Total length: 414.1 ft.
Deck width: 29.9 ft.
Vertical clearance above deck: 15.0 ft.
Also called
Maxwell Bridge
Approximate latitude, longitude
+38.28111, -122.28667   (decimal degrees)
38°16'52" N, 122°17'12" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/562389/4237246 (zone/easting/northing)
USGS topographic map
Napa
Inventory numbers
CA 21-75 (California bridge number)
BH 11205 (Bridgehunter.com ID)
Inspection (as of 03/2004)
Deck condition rating: Serious (3 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 30.0 (out of 100)
Average daily traffic (as of 1998)
24,800

Update Log 

  • December 23, 2013: New photos from Craig Philpott
  • September 19, 2013: New photo from Douglas Butler
  • December 24, 2010: New Street View added by Daniel Hopkins
  • December 23, 2010: New photo from Craig Philpott
  • August 27, 2009: Updated by Craig Philpott: added name, Maxwell Bridge
  • August 23, 2009: New photos from Craig Philpott
  • August 22, 2009: Essay added by Craig Philpott
  • August 7, 2009: Updated by Craig Philpott: Bridge replaced 2005

Sources 

  • Craig Philpott - cphilpott [at] puc [dot] edu
  • BridgePix - Photo of original bridge on BridgePix
  • Daniel Hopkins - chimera [at] clovermail [dot] net
  • Douglas Butler

Comments 

Napa River Bridge
Posted August 29, 2011, by Craig Philpott (cphilpott [at] puc [dot] edu)

Douglas, thanks for the comment. What I would like to find are old pictures of this bridge. I drove across it so many times as a kid but I have no pictures. If you know of any I would be very interested.

Napa River Bridge
Posted August 29, 2011, by Douglas Butler (drawbridges [at] lycos [dot] com)

Hello,

How are you? Im Douglas Butler, the picture looks good of a lift bridge drawings and it is the exact lift bridge that shows the previous bridge before it was replaced. Thumbs up thanks.

Sincerely

Douglas Butler.