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Damon Bridge

Photos 

Photo taken by Steve Conro in February 2020

Enlarge

BH Photo #466515

Map 

Facts 

Overview
Through truss bridge over Maquoketa River on 435th Avenue (CR Z34)
Location
Preston, Jackson County, Iowa
Status
Open to traffic
History
Built 1956
Builder
- Iowa State Highway Commission of Ames, Iowa
Design
Riveted Pennsylvania Petit through truss bridge with M-frame portal bracings
Dimensions
Length of largest span: 250.0 ft.
Total length: 571.2 ft.
Deck width: 20.0 ft.
Vertical clearance above deck: 14.0 ft.
Approximate latitude, longitude
+42.11902, -90.39391   (decimal degrees)
42°07'08" N, 90°23'38" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/715435/4666278 (zone/easting/northing)
Quadrangle map:
Preston
Land survey
T. 84 N., R. 5 E.
Average daily traffic (as of 2017)
620
Inventory numbers
IA 192570 (Iowa bridge number)
BH 13718 (Bridgehunter.com ID)
Inspection report (as of May 2018)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 41.6 (out of 100)
View more at BridgeReports.com

Update Log 

  • February 24, 2020: New photos from Steve Conro
  • July 18, 2013: Updated by Luke Harden: Added category "M-frame portal"
  • February 17, 2011: Updated by Jason Smith: Changed the GPS/ Added information on the bridge

Sources 

  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
  • Steve Conro - sconro [at] yahoo [dot] com