Tuesday, May 31, 2022

1932,1986,2019 Arlington Memorial Bridge over Potomac River at Washington, DC

(Bridge Hunter; Historic Bridges; HAERSatellite)

"Built 1932; rehabilitated 1986; bascule span demolished 2019." [BridgeHunter] Joseph Strauss designed the movable span. Sheet steel cladding was added to the sides of the trusses to help them blend in with the concrete arches. [HistoricBridges]

HAER DC,WASH,563--5
5. South elevation. - Arlington Memorial Bridge, Spanning Potomac River between Lincoln Memorial & Arlington National Cemetery, Washington, District of Columbia, DC
 
National Park Service

HAER DC,WASH,563--29 (CT)
29. Interior view of eastern lift span, looking south.

HAER DC,WASH,563--13
13. Interior view of eastern lift span, with decking above, looking back from center of span, toward lift mechanism area. 

HAER DC,WASH,563--16
16. Interior view of lift mechanism area of eastern lift span looking south, showing trunion gears at left and right, and counterweight above.

Jonathan Konopka posted
Learned something new today. I did not know that the Arlington Memorial Bridge had a central bascule span that lifted up and down! I was trying to find better pictures of the span open, but all I could find was the one. The bascule span last opened in 1961 and was replaced by a span that doesn’t move in 2018.
[It appears Johathan copied this photo from HistoricBridges.]
 
This is higher resolution and has more information about the photo.
Photo From 1939 Thesis By R. W. Carroll via BridgeHunter

F Delventhal Flickr, License: Creative Commons Attribution (CC BY)
 
HAER-data, p120
Figure 4. Each leaf of the bascule span was assembled with rivets from components fabricated at Phoenix Bridge’s shop. The east leaf was erected first, and then raised to provide clearance for ships while the west leaf was being built. (NARA RG 42-AMB-1-30) 
 
Bridges Now and Then posted
"Washington, DC, circa 1930. "Construction of Memorial Bridge over Potomac River." (Acetate negative by Theodor Horydczak)

Historical Articles via HistoricBridges, p5

Historical Articles via HistoricBridges, p5
Street View, Oct 2018

Street View, Aug 2019

Street View, Oct 2019

Kiewit

asce
The steel-framed fascia of the bascule span was removed in four large sections to repair corrosion. (Photograph courtesy of AECOM) 

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