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Napa River Bridge

Napa County, California
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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

Categories 

Built 1949 (266)
Built during 1940s (2,795)
California (1,615)
Have street view (9,880)
Lost (10,353)
Lost 2005 (325)
Lost during 2000s (3,090)
Movable (1,355)
Napa County, California (74)
 Napa, California (20)
Owned by state (9,803)
Replaced by new bridge (7,132)
Span length 125-175 feet (2,950)
Steel grate deck (381)
Structurally deficient (16,676)
Total length 250-500 feet (3,367)
Vertical lift (275)

Update Log 

  • 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
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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.