1 vote

US421 Wabash River Bridge


Replacement bridge

Photo taken by Chris Light

BH Photo #102708


Built at cost of $114,623.76 and finished on 10/35/1935.


Lost concrete arch bridge over Wabash River on US 421
Delphi, Carroll County, Indiana
Replaced by new bridge
Built 1934-35, replaced in 1996
- Shappert Engineering Co.
Six-span closed-spandrel concrete arch
Length of largest span: 120.1 ft.
Total length: 755.0 ft.
Deck width: 24.0 ft.
Also called
Carroll County Veteran's Memorial Bridge
State Highway Bridge
Approximate latitude, longitude
+40.59167, -86.69833   (decimal degrees)
40°35'30" N, 86°41'54" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/525526/4493473 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2004)
Inventory numbers
INNBI 032330 (Indiana bridge number on the National Bridge Inventory)
BH 15884 (Bridgehunter.com ID)
Inspection report (as of August 2017)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 85.5 (out of 100)
View more at BridgeReports.com

Update Log 

  • October 30, 2010: Updated by Ed Hollowell: Corrected complrtion date, added builder, cost
  • April 5, 2009: Updated by James Norwood
  • June 30, 2008: New photo from Paul Brandenburg
  • June 26, 2008: Updated by Paul Brandenburg: added state highway bridge
  • December 22, 2006: Posted photo of replacement bridge from Chris Light


  • Chris Light - CJKADJ [at] juno [dot] com
  • Paul Brandenburg - indianabridges [at] sbcglobal [dot] net
  • James Norwood
  • Ed Hollowell - erhollowell [at] aol [dot] com
  • Jacob P. Bernard


Wabash River US 421 Bridge
Posted January 26, 2009, by James

Here I am including a picture taken January 14, 2009 of the US 421 bridge over the Wabash River looking South towards Delphi, just on the West edge of Pittsburg. Enjoy the snow as well.

Wabash River US 421 Bridge
Posted January 14, 2009, by James

I passed over the new bridge today on a sidetrip today and noticed it has a sign denoting it is named "The Carroll County Veteran's Memorial Bridge". I took a side view shot and will try to upload sometime soon.

Wabash River US 421 Bridge
Posted January 5, 2009, by James

Not trying to offend, but the first picture of the replacement on this page is of the US 421/Ind 39 bridge over the Tippecanoe(now Bill Luse Bridge) near the Tioga bridge, not the one over the Wabash. That bridge is several miles North as you enter Monticello at the White County line. The current structure replaces the one shown in the second picture and was in terrible shape before it was razed. Concrete had began to turn to gravel on top and was scary to cross. Very heavy traffic on this road didn't help as well. That bridge had replaced another upstream that went right through Pittsburg and crossed over the river where there was a road that either went out to the Bicycle bridge or turning left took you under the Monon and through the current Sand and Gravel quarry as you journied into Delphi and it can be seen on the Carroll County's Historical Society's website. The Monon Railroad's bridge(also long gone)is also featured in this photo http://www.carrollcountymuseum.org/photo/item.php?in=101175

Now back to 421 and the Wabash River


Current Bridge during flooding in 1998 looking towards Delphi


Again, no offense, hope these links are helpfull. Many more on the Carroll site if you look around in their photo archives. James

Wabash River US 421 Bridge
Posted March 23, 2008, by tom

I don't know what type of bridge was here myself. Does anybody have any info on what type of bridge the old one was. Was it a steel truss, concrete arch or any other? It would be interesting to find out because I've only been over the new bridge.

Wabash River US 421 Bridge
Posted December 26, 2006, by Anonymous

Just, What type of bridge was the old one?