Upper Iowa River Bridge

Photos 

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Photo taken by Robert Elder View high-res version

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Photo taken by Robert Elder

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Photo taken by Robert Elder View high-res version

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Photo taken by Robert Elder View high-res version

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Bolson Bridge south entrance Photo taken by Jason Smith in December 2007 View high-res version

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Bolson Bridge north entrance Photo taken by Jason Smith in December 2007 View high-res version

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G:Bolson Bridge Winn MOD oblique view Photo taken by Jason Smith in February 2008 View high-res version

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Bolson Bridge close up of bridge damage Photo taken by Jason Smith in December 2007 View high-res version

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Bolson Bridge Photo taken by Jason Smith in December 2007 View high-res version

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Oblique view The following photos were all taken in black and white Photo taken by Jason and Birgit Smith in December 2007 View high-res version

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Side view Photo taken by Jason and Birgit Smith in December 2007 View high-res version

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Oblique view Photo taken by Jason and Birgit Smith in December 2007 View high-res version

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Transversal view Photo taken by Jason and Birgit Smith in December 2007 View high-res version

Map 

Vicinity map Map links: Google Maps Yahoo! Maps TopoZone Terraserver USA

Facts 

Overview

Through truss bridge over Upper Iowa River on a local road

Location

Winneshiek County, Iowa

Status

Open to traffic

History

Rehabilitated 1974

Design

Through truss

Dimensions

Length of largest span: 114.2 ft.
Total length: 196.2 ft.
Deck width: 17.1 ft.
Vertical clearance above deck: 10.0 ft.

Approximate latitude, longitude

+43.34800, -91.62080   (decimal degrees)
43°20'53" N, 91°37'15" W   (degrees°minutes'seconds")

Approximate UTM coordinates

15/611780/4800383 (zone/easting/northing)

Land survey

T. 99 N., R. 7 W., Sec. 36

USGS topographic map

Hanover

Inventory numbers

IA 348430 (Iowa bridge number)
BH 14766 (Bridgehunter.com ID)

Inspection (as of 04/2007)

Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 56.0 (out of 100)

Average daily traffic (as of 2001)

40

Categories 

Update Log 

• February 6, 2008: New photos from Jason Smith
• February 4, 2008: New photos from Jason Smith

Sources 

• Robert Elder - bass-tbn [at] ku [dot] edu
• Jason Smith - JDSmith77 [at] gmx [dot] net

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