Union Arch Bridge - Cabin John, Maryland
Posted by: Groundspeak Premium Member flyingmoose
N 38° 58.365 W 077° 08.852
18S E 313960 N 4315946
Quick Description: Arch Bridge located between Cabin John and Glen Echo Maryland.
Location: Maryland, United States
Date Posted: 8/3/2020 3:07:41 PM
Waymark Code: WM12Y1A
Published By: Groundspeak Premium Member QuesterMark
Views: 6

Long Description:
The Union Arch Bridge was designated as a Historic National Civil Engineering Landmark by the American Society of Civil Engineers in 1972 and was listed in the National Register of Historic Places in 1973. Both designations refer to the bridge as the "Cabin John Aqueduct."

The bridge continues to support the Washington Aqueduct, as well as a roadway, MacArthur Boulevard. Traffic is narrowed to one lane with traffic signals controlling traffic in either direction. A concrete barrier along the south side creates a separated pedestrian walkway across the bridge. Metal fencing on both sides prevents pedestrians and objects from falling. Signs remind road maintenance crews not to salt the roadway in winter months.

The U.S. Army Corps of Engineers completed a renovation of the bridge in 2001.
Cabin John, Maryland

Type of structure/site: Bridge

Date of Construction: 1864

Engineer/Architect/Builder etc.: United States Army Corp of Engineers

Engineering Organization Listing: Other (specify in description)

Primary Web Site: [Web Link]

Secondary Web Site: [Web Link]

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