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CBQ - Steamboat Basin Bridge


Peirs over I&M Canal

Photo taken by Steve Conro in December 2011


BH Photo #223733


Remaining stone piers over final lock at I & M canal park. Historical park has remains of another bridge abutment and 2 lock chambers (1 restored).


Lost Pratt through truss bridge ove Steamboat Basin (I&M Canal) on Chicago, Burlington & Quincy Railroad
LaSalle, LaSalle County, Illinois
Damaged and removed in 1979
- King Bridge Co. of Cleveland, Ohio
- Chicago, Burlington & Quincy Railroad (CBQ)
Pratt through truss
Approximate latitude, longitude
+41.32621, -89.09608   (decimal degrees)
41°19'34" N, 89°05'46" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/324583/4577090 (zone/easting/northing)
Quadrangle map:
La Salle
Inventory number
BH 51036 (Bridgehunter.com ID)


Chicago, Burlington & Quincy Railroad (571)
Deck girder (6,303)
Girder (11,169)
I&M Canal (26)
Illinois (4,929)
King Bridge Co. (435)
LaSalle County, Illinois (99)
LaSalle, Illinois (11)
Lost (28,430)
Owned by railroad (13,494)
Plate girder (8,724)
Pratt through truss (6,053)
Pratt truss (10,291)
Railroad (16,455)
Through truss (16,748)
Truss (35,420)

Update Log 

  • January 3, 2022: New photo from Luke
  • June 13, 2015: Updated by Luke: Edited entry
  • January 27, 2012: Updated by Luke Harden: Added category "I & M Canal"
  • January 27, 2012: New photos from Gene Smania
  • January 23, 2012: Added by Steve Conro



I & M Canal Ghost Bridge
Posted January 14, 2013, by Gene Smania

It was a railroad bridge that carried the CB&Q RR. The tracks crossed Illinois Rt 351 just off the south abutment of the current bridge. If you look east you will see a gravel road with a gate across it--that was the access road that paralleled the CB&Q RR tracks heading for the Illinois River RR lift bridge and was used by the bridge tender and maintenance crews. The tracks ran west from there and crossed the original US Rt 51 which is now the access road to the I&M Canal Lock 14 area. Those still visible piers were for the RR bridge that crossed the canal west of the original US Rt 51. They met up with the Rock Island RR tracks that still run east/west on the north side of the canal. Driving south on the original US Rt 51 you crossed the bridge over the Rock Island RR tracks; then the concrete structure over the canal; then under a steel beam structure on wood pilings that carried the CB&Q RR over the original US Rt 51. My dad remembered in the late 1940's when a truck driver delivering a full carrier of new cars tried to make it under that US Rt 51 RR bridge and created instant convertibles out of the cars on the top level of the carrier.

I & M Canal Ghost Bridge
Posted January 28, 2012, by Steve Conro (sconro [at] yahoo [dot] com)

I thought these were for a road bridge due to the incline which the piers raise up. But it sure looks like its in the right location.

I & M Canal Ghost Bridge
Posted January 27, 2012, by Gene Smania

This is the same CB & Q railroad line that crossed the Illinois River on the lift bridge also on this site. Lift bridge was removed in 1980 so this one was probably removed around that time also.