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Sandy Hook Bridge

US-340 Potomac River Bridge

Sandy Hook Bridge

Primary Photographer(s): Marc Scotti

Bridge Documented: May 3, 2021

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Location
Rural: Washington County, Maryland and Loudoun County, Virginia: United States
Structure Type
Metal Continuous 11 Panel Rivet-Connected Warren Deck Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1946 By Builder/Contractor: Bethlehem Steel Company of Bethlehem, Pennsylvania and Engineer/Design: Maryland State Roads Commission
Rehabilitation Date
1978
Main Span Length
190.0 Feet (57.9 Meters)
Structure Length
2,251.0 Feet (686.1 Meters)
Roadway Width
25.3 Feet (7.71 Meters)
Spans
12 Main Span(s) and 2 Approach Span(s)
Inventory Number
100000210041010

Historic Significance Rating (HSR)
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Bridge Documentation

This is a large and very beautiful deck truss noted for its attractive trusses, piers, and railings, and lack of alteration. The overall truss design is similar to the state's design for a Wichert deck truss, but (perhaps as a later constructed bridge) the Wichert hinges were not included in this bridge, vertical members were added directly above the bearings, and it is instead a true continuous truss, with several spans forming each continuous unit. There are four continuous truss units on the bridge. With the exception of the bearing verticals, the Warren trusses do not feature any verticals in the configuration.

Since the Wichert truss was designed as a simpler way to produce a continuous truss, as engineers became more familiar with continuous truss design, the need for a Wichert  truss likely became obsolete, leading to it being dropped from the design of bridges like this one.

The substructure for this bridge was built before the war, ca 1942. When World War II broke out, the superstructure contract was canceled, and a new contract to Bethlehem Steel was awarded ca. 1945 to complete the steel superstructure.

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

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View Historical Articles About This Bridge


This bridge is tagged with the following special condition(s): Unorganized Photos

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Photo Galleries and Videos: Sandy Hook Bridge

 

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A collection of overview and detail photos, presented as an unorganized and unlabeled collage and gallery. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
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Unorganized Photos

Mobile Optimized Photos
A collection of overview and detail photos, presented as an unorganized and unlabeled collage and gallery. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
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Maps and Links: Sandy Hook Bridge

Coordinates (Latitude, Longitude):

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Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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