Friday, March 18, 2016

1859++1870+1889,1955-1995+1998 Wabash Street Bridges over Mississippi River in St. Paul, MN

If you are here because of "B&O Bridge #463 over Cuyahoga River in Cleveland, OH," then you need to go there.

1859: (structuremag)
1870: ("a Howe truss with iron verticals in 1870" [structuremag])
1889-1995: (Bridge Hunter; HAER)
1995: (Satellite)

Looking downstream. Wabash Street Bridge is the steel-girder bridge over Raspberry Island. The right foreground is one of the towers for the lift span of the UP/C&NW/CGW Robert Street Lift Bridge , and the arch bridge in the background is the 1987 Smith Avenue High Bridge.
Street View, Aug 2024

Looking upstream.
Boat View, Aug 2016

It is a concrete segmental box girder bridge.
Street View, Aug 2024

I learned of this bridge because it appears in the background of this photo of a CGW train crossing the 
UP/C&NW/CGW Robert Street Lift Bridge. Note that it is the original 1889 bridge.

John Harker posted
This CGW northbound transfer was crossing the Mississippi River on May 30, 1968.  It was almost at the Robert Street Lift Bridge.  You can just see part of the structure to the right.  Six F units with F3A 112-A in the lead powered this freight that would run through or by St. Paul Union Depot then on to Como, St Anthony Park and Minneapolis.  An unknown photographer took this slide from the Robert Street highway bridge.  I scanned and edited this image from an original Kodak Ektachrome slide in my collection.

The charter for the 1859 bridge required a navigation span that was 60' (18m) high and 300' (91m) wide. But the contractor negotiated the width down to 240' (73m). [structuremag]
 
SaintPaulHistorical
"The first bridge here opened in 1859; at that time, only two other bridges- the Hennepin Avenue Suspension Bridge (1855) in Minneapolis and a railroad bridge (1856) at Rock Island, IL- spanned the Mississippi."

The wooden bridge was replaced in 1870 with "a Howe truss with iron verticals in 1870." [structuremag]
SaintPaulHistorical


More information on the 1889 bridge.


The north part was a cantilever bridge and the south part was pin-connected Pratt deck trusses. [HAER_data]
 
HAER MINN,62-SAIPA,35-, cropped
4. General view of bridge site, looking west - Wabasha Street Bridge, Spanning Mississippi River at Wabasha Street, Saint Paul, Ramsey County, MN Photos from Survey HAER MN-75
[The steel-girder bridge in the foreground is part of the UP/C&NW/CGW Robert Street Lift Bridge.]

HAER MINN,62-SAIPA,35-, cropped
9. East side of 1889-1889 portion, looking west

HAER MINN,62-SAIPA,35-, cropped
17. Typical truss of 1899-1900 portion (fourth span), looking west


HAER MINN,62-SAIPA,35-
2. Plan, Elevation - Wabasha Street Bridge, Spanning Mississippi River at Wabasha Street, Saint Paul, Ramsey County, MN Drawings from Survey HAER MN-75

HAER MINN,62-SAIPA,35-
3. Isometric View of North Cantilever Arm, North of Pier No. 1, Showing Hinge Point


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