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Clarks Crossing Bridge

Clarks Crossing Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: April 8, 2013
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Key Facts

Facility Carried / Feature Intersected
Annapolis Road Over Gualala River
Rural: Sonoma County, California: United States
Construction Date and Builder / Engineer
1920 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Main Span Length
181 Feet (55.17 Meters)
Structure Length
181 Feet (55.17 Meters)
Roadway Width
15.4 Feet (4.69 Meters)
1 Main Span(s)
NBI Number

Historic Significance Rating (HSR)

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

With the arch-like shape formed by the Parker truss configuration, this is an attractive looking pin-connected truss bridge located in a highly rural location. Despite its rural location and how little traffic it carries, the bridge has a lot of alterations, making the bridge's historic integrity fairly low. The portal bracing has been replaced with a modern, bolted substitute. Added bracing runs from the portal bracing to the top chord. The end post has bolted alterations including added plate. Some diagonal members have either been replaced or had an additional member added.


Photos and Videos: Clarks Crossing Bridge

Available Photo Galleries and Videos

Click on a thumbnail or gallery name below to visit that particular photo gallery. If videos are available, click on a video name to view and/or download that particular video.

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Bridge Photo-Documentation
Original / Full Size Photos
A collection of overview and detail photos. For the best visual immersion and full detail, or for use as a desktop background, this gallery presents the photos for this bridge in the original digital camera resolution.
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Bridge Photo-Documentation
Mobile Optimized Gallery
A collection of overview and detail photos. View the photos for this bridge in a reduced size which is useful for mobile/smartphone users, modem (dial-up) users, or those who do not wish to wait for the longer download times of the full-size photos. Alternatively, view this photo gallery using a popup slideshow viewer (great for mobile users) by clicking the link below.
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View Video
CarCam: Northwestbound Crossing
Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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