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Zinn Bridge

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Description 

Of the 4 two-span Eel River bridges, sadly this one didn't survive.

Facts 

Overview
Lost through truss bridge over Eel River on CR 500 E
Location
Miami County, Indiana
Status
Replaced by new bridge
History
Built ca. 1884; rehabilitated 1975; replaced 1993
Builder
- Indianapolis Bridge Co.
Design
Pinned Pratt through truss
Dimensions
Length of largest span: 104.0 ft.
Total length: 213.9 ft.
Deck width: 18.0 ft.
Vertical clearance above deck: 17.5 ft.
Also called
Eel River Bridge
Old County Bridge #53
Approximate latitude, longitude
+40.87166, -85.98087   (decimal degrees)
40°52'18" N, 85°58'51" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/585876/4525009 (zone/easting/northing)
Quadrangle map:
Richvalley
Inventory numbers
INNBI 5200040 (Indiana bridge number on the National Bridge Inventory)
BH 39452 (Bridgehunter.com ID)
Inspection (as of 04/1991)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 29.5 (out of 100)
Average daily traffic (as of 1991)
100

Update Log 

  • April 19, 2017: Updated by Tony Dillon: Added historic name as per county engineer comment
  • February 21, 2010: Updated by Anthony Dillon: Added builder and truss type, changed other information.
  • February 8, 2009: Added by James Baughn

Sources 

Comments 

Zinn Bridge
Posted April 19, 2017, by Tony Dillon (spansaver [at] hotmail [dot] com)

I assume then that the beautiful cast portal bracings have probably survived in one form or another.

Eel River Bridge
Posted April 19, 2017, by Kenneth Einselen (in52engr [at] miamicountyiin [dot] gov)

This bridge had several components that were wrought iron. The contractor allowed local blacksmithing enthusiasts to salvage much of the wrought iron. The wrought iron was then distributed to several historical sites that had blacksmiths for use in the blacksmith shops.

Eel River Bridge
Posted April 19, 2017, by Kenneth Einselen (in52engr [at] miamicountyin [dot] gov)

This bridge is locally referred to as the ZINN BRIDGE.