2 votes

20th Street Overpass



Photo taken by Julie Bowers in May 2014


BH Photo #283632



Deck plate girder over Railroad (IAIS) on 20th Street
Grinnell, Poweshiek County, Iowa
Intact but closed to all traffic
Deck plate girder
Length of largest span: 61.0 ft.
Total length: 158.1 ft.
Deck width: 13.1 ft.
Approximate latitude, longitude
+41.73778, -92.74543   (decimal degrees)
41°44'16" N, 92°44'44" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/521169/4620694 (zone/easting/northing)
Quadrangle map:
Grinnell South
Average daily traffic (as of 2006)
Inventory numbers
IA 293840 (Iowa bridge number)
BH 60987 (Bridgehunter.com ID)
Inspection report (as of December 2009)
Overall condition: Poor
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Serious (3 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 17.2 (out of 100)
View more at BridgeReports.com

Update Log 

  • May 15, 2014: Updated by Luke Harden: Merged NBI
  • May 15, 2014: Added by Julie Bowers



20th Street Overpass
Posted June 4, 2018, by John Marvig (marvigj27 [at] gmail [dot] com)

Came upon this bridge yesterday, and replacement is under way. It looks like the structure was built with secondhand materials. Does anyone have any more photos?

20th Street Overpass
Posted March 25, 2015, by Karen Sleeuwenhoek (mdirks [at] iowatelecom [dot] net)

This bridge is still closed March 25,2015. The County says they have contacted the IAIS Railroad about getting it replaced but the RR is doing nothing to rebuild or fix this bridge and arguing whether they are the ones to fix or replace it. We are searching for answers to history and proof of RR ownership .Also history of when this road was established.Was the road established before the railroad ? We have a photo in the Centennial Grinnell Book that shows a possible previous bridge that existed here before present bridge.The caption calls it "the old overhead bridge crossing the Rock Island rr west of town." It says the pictured bridge burned down. No dates are given . Please help us dig for information if possible. We need traffic to this bridge and road restored.

20th Street Bridge
Posted May 15, 2014, by Julie Bowers (jbowerz1 [at] gmail [dot] com)

This bridge has been closed. I was asked and know nothing. If its here let me know. I couldn't find it. I was told it is owned by the railroad. Love the hympback and big rivets.