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Dry Creek Railroad Bridge

Dry Creek Railroad Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: April 5, 2013

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Key Facts

Facility Carried / Feature Intersected
Railroad (Modesto and Empire Traction) Over Dry Creek
Location
Modesto: Stanislaus County, California: United States
Structure Type
Metal Deck Girder, Fixed and Approach Spans: Pre-Stressed Concrete Adjacent Box Beam, Fixed
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
78 Feet (23.77 Meters)
Structure Length
224 Feet (68.28 Meters)
Roadway Width
Not Available
Spans
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This bridge is a most unusual structure due to its main span. The main span consists of a deck plate girder with a supplemental strengthening system attached underneath the girder that has the visual appearance of an upside-down Queenpost truss system with a bottom chord composed of eyebars and built-up vertical members. Such an unusual and complex supplemental structure is the sort of thing that usually is expected to be an alteration added to the bridge at a later date after its initial construction as a method of strengthening a bridge. However, if this support system is not original, it was added a long time ago, because the use of rivets, eyebars, and pin connections are all construction materials and methods not used in more recent years. Whether an original detail or an alteration, the supplemental support system is old enough so as to have historic significance in either case.

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