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Cloquet River Railroad Bridge

St. Louis County, Minnesota
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Photos 

Overall view of all three truss bridges

Note the now-demolished Brosseau Road Bridge in the background.

Photo taken by Matthew Lohry

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Map 

Facts 

Overview
Warren deck truss bridge over Cloquet River on Canadian National Railway (formerly Duluth, Missabe & Iron Range Railway)
Location
St. Louis County, Minnesota
Status
Open to traffic
History
Newer span built 1924
Builder
- American Bridge Co. of New York (newer span)
Design
Main span: Two parallel Warren deck trusses
Approximate latitude, longitude
+46.89648, -92.51465   (decimal degrees)
46°53'47" N, 92°30'53" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/536970/5193774 (zone/easting/northing)
USGS topographic map
Alborn
Inventory number
BH 43962 (Bridgehunter.com ID)

Categories 

American Bridge Co. (447)
Built 1924 (494)
Built during 1920s (7,031)
Deck girder (1,795)
Deck truss (952)
Girder (3,227)
Minnesota (915)
Open (28,293)
 Owned by railroad (4,034)
Plate girder (2,242)
Railroad (4,053)
St. Louis County, Minnesota (66)
Truss (23,558)
Warren deck truss (337)
Warren truss (3,955)

Update Log 

  • July 1, 2012: Updated by Luke Harden: Added build date
  • March 16, 2010: New photos from Matthew Lohry
  • January 30, 2010: Added by James Baughn

Sources 

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Comments 

Cloquet River Railroad Bridge
Posted July 1, 2012, by John Marvig (johnmarvig [at] chaska [dot] net)

I believe that the photo of the date plate says 1924. Just a guess from looking closely at the pic...

Cloquet River Railroad Bridge
Posted December 7, 2011, by Nathan Holth (form3 [at] historicbridges [dot] org)

John,

Thanks for confirming the purpose of the inner tracks. I always suspected that's what those were, but never knew for sure.

Cloquet River Railroad Bridge
Posted December 7, 2011, by John Marvig (johnmarvig [at] chaska [dot] net)

The inner rails are guard rails, which keep a derailed train from taking out the entire bridge

Cloquet River Railroad Bridge
Posted September 9, 2010, by Matthew Lohry

I doubt that they ever did--if you're referring to the second sets of tracks that are inside the wider sets on the bridge, I believe that those inner rails serve as some sort of stabilizer for trains that cross bridges, but I'm uncertain how they work. I have noticed that many railroad bridges that I've seen have these inner tracks.

Cloquet River Railroad Bridge
Posted July 31, 2010, by Anonymous

Did these bridges once hold narrow gauge?

Cloquet River Railroad Bridge
Posted May 15, 2010, by dave gunderson (dgunderson [at] citlink [dot] net)

I use to pickup Taconite pellets under this bridge for slingshot ammo. Also fished there too.

DGunderson