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Hollifield Road Bridge

Hollifield Road Bridge

Primary Photographer(s): Bob Dover

Bridge Documented: December 15, 2013

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Key Facts

Facility Carried / Feature Intersected
Hollifield Road (Johnnycake Road) Over Patapsco River
Rural: Baltimore County, Maryland and Howard County, Maryland: United States
Construction Date and Builder / Engineer
1934 By Builder/Contractor: Unknown and Engineer/Design: Maryland State Roads Commission

Technical Facts

Rehabilitation Date
Main Span Length
160 Feet (48.8 Meters)
Structure Length
164 Feet (50 Meters)
Roadway Width
20 Feet (6.1 Meters)
1 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

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

View The Historic Bridge Inventory Report For This Bridge

Information About Bridge Contributed By Bob Dover

Hollofield area of Patapsco River State Park, between Howard and Baltimore Counties, Maryland. About 1 mile north of Interstate 70, and 5 miles west of Baltimore.


Rural, in woods within a state park, but connecting heavily populated suburban areas nearby.

Exit US Route 29 off of Interstate 70. There is dedicated parking on the western end of the bridge.

Patapsco River

Current Status:
Two-lane bridge, cement deck, carries traffic on Hollofield Road, a narrow, winding two-lane rural road passing through the state park. Note that "Historic Bridges of Maryland" by Dixie Legler and Carol M. Highsmith incorrectly states that the bridge carries Johnnycake Road. The intersection of Hollofield Road with Johnnycake Road is just off of the eastern end of the bridge, but the road over the bridge is Hollofield.

Date plaque on the angled truss girder on the south side of the western end of the bridge gives its date as 1934. No other decorative elements on the bridge.

None known. The bridge is located within a State Park, and substantial development which would increase traffic needs beyond the bridge's capability is unlikely.

HistoricBridges.org Discussion

Truss bridges built in the 1930s were not like those built decades ago in the 19th Century. They were not designed by the builder of the bridge, they were instead designed by the state. Therefore, in this period, truss bridge designs and appearances are linked to the particular state they are located in. This bridge therefore represents Maryland's approach to steel truss design.


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