Arnold Drive Bridge

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Arnold Drive Bridge

Looking North.

Photo taken by Craig Philpott in December 2009

Overview: Parker Through truss bridge over Sonoma Creek on Arnold Drive
Location: Sonoma County, California
Status: Open to traffic
History: Built 1930
Design: Parker Through truss
Dimensions: Length of largest span: 140.1 ft.
Total length: 143.1 ft.
Deck width: 24.3 ft.
Vertical clearance above deck: 12.7 ft.
Approximate latitude, longitude: +38.35083, -122.51889 (decimal degrees)
38°21'03" N, 122°31'08" W (degrees°minutes'seconds")
Approximate UTM coordinates: 10/542038/4244851 (zone/easting/northing)
Quadrangle map:: Glen Ellen
Inventory numbers: CA 20C-213 (California bridge number)
BH 11602 (Bridgehunter.com ID)
Inspection (as of 10/2014): Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 34.4 (out of 100)
Average daily traffic (as of 2010): 13,900

August 31, 2010: Updated by Matthew Lohry: Corrected bridge design--this is a textbook example of a Parker through truss; Camelback bridges have 5-sided upper chords--this bridge's upper chords have 7 sides each.
May 15, 2010: New Street View added by Craig Philpott
February 18, 2010: Updated by Craig Philpott: corrected design
December 27, 2009: New photo from Craig Philpott