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Black River Railroad Bridge

Canadian National Railroad Bridge

   


Black River Railroad Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: 2005
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and Videos
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Key Facts

Facility Carried / Feature Intersected
Railroad (Canadian National) Over Black River
Location
Port Huron: St. Clair County, Michigan
Structure Type
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Deck Girder, Fixed
Construction Date and Builder / Engineer
1929 By Builder/Contractor: Wisconsin Bridge and Iron Company of Milwaukee, Wisconsin

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
150 Feet (45.7 Meters)
Structure Length
330 Feet (100.6 Meters)
Roadway Width
Not Available
Spans
1 Main Span(s) and 3 Approach Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This is one of two movable railroad bridges in Port Huron, but is the only one that still operates. The bridge is generally in the down position in the winter and in the open position in the summer. The bridge is lowered only when a train is coming during the summer.

This is a Scherzer type rolling lift bascule bridge, although it is not known if Scherzer's firm had anything to do with the design of the bridge. The main span, which is the moveable span, is a through plate girder. The bridge includes one deck plate girder approach span at each end of the bridge. Concrete piers support the bridge in the water. Abutments are also concrete. This bridge was built in 1929 by the Wisconsin Bridge and Iron Company. A couple plaques remain on the bridge; one is broken the other in good condition. The main span plate girder is linked to the counterweight via a pair of braced steel beams. Several of these beams are built-up and have v-lacing and/or lattice. All solid connections are riveted.

This is a fascinating bridge, because unlike most newer highway bascule bridges, you can see most of the gears and moving parts from the outside of the bridge. This bridge replaced an unknown structure at this location.

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Photos and Videos: Black River Railroad Bridge

Available Photo Galleries and Videos

Click on a thumbnail or gallery name below to visit that particular photo gallery. If videos are available, click on a video name to view and/or download that particular video.

 
View Photo Gallery
Structure Overview
Original / Full Size Photos
A collection of overview photos that show the bridge as a whole and general areas of the bridge. For the best visual immersion and full detail, or for use as a desktop background, this gallery presents the photos for this bridge in the original digital camera resolution.
View Photo Gallery
Structure Details
Original / Full Size Photos
A collection of detail photos that document the parts, construction, and condition of the bridge. For the best visual immersion and full detail, or for use as a desktop background, this gallery presents the photos for this bridge in the original digital camera resolution.
View Photo Gallery
Structure Overview
Mobile Optimized Gallery
A collection of overview photos that show the bridge as a whole and general areas of the bridge. View the photos for this bridge in a reduced size which is useful for mobile/smartphone users, modem (dial-up) users, or those who do not wish to wait for the longer download times of the full-size photos. Alternatively, view this photo gallery using a popup slideshow viewer (great for mobile users) by clicking the link below.
Browse Gallery With Popup Viewer
View Photo Gallery
Structure Details
Mobile Optimized Gallery
A collection of detail photos that document the parts, construction, and condition of the bridge. View the photos for this bridge in a reduced size which is useful for mobile/smartphone users, modem (dial-up) users, or those who do not wish to wait for the longer download times of the full-size photos. Alternatively, view this photo gallery using a popup slideshow viewer (great for mobile users) by clicking the link below.
Browse Gallery With Popup Viewer
View Video
Bridge Being Lifted
Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.
View Video
Bridge Being Lowered
Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.
View Video
Portion of Bridge Lift
Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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