Photos 

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Elevation From West

Photo by Joe Elliott, Summer 1995, for HAER

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3/4 View From Southwest

Photo by Joe Elliott, Summer 1995, for HAER

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Barrel View From South

Photo by Joe Elliott, Summer 1995, for HAER

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Barrel View, Mid Span, From South

Photo by Joe Elliott, Summer 1995, for HAER

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Elevation Of Truss Panels, From West

Photo by Joe Elliott, Summer 1995, for HAER

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Details Of Top Connections, From Northwest

Photo by Joe Elliott, Summer 1995, for HAER

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Details Of Top End Connections, From Southwest

Photo by Joe Elliott, Summer 1995, for HAER

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Details Of Bottom Connections, From Southwest

Photo by Joe Elliott, Summer 1995, for HAER

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Details Of Bottom Connections, From Below, From Southwest

Photo by Joe Elliott, Summer 1995, for HAER

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Bearing Plate At Southwest Corner, From Northwest

Photo by Joe Elliott, Summer 1995, for HAER

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Underside, From South

Photo by Joe Elliott, Summer 1995, for HAER

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Map 

Vicinity Map

Vicinity map

Map links:

The Significance of the White Water Creek Bridge 

Written by Robert W. Jackson, August 1995 for HAER

This bridge is a remaining span of a seven-span approach bridge built in 1872 to serve a larger seven-span bridge built in 1868 over the Mississippi River at Dubuque. The larger bridge was the first to span the Mississippi at Dubuque, and was one of the earliest of all Mississippi River bridges. The superstructures of both the approach bridge and the river bridge were fabricated and erected by the Keystone Bridge Company, one of the most important and long-lived bridge companies of the nineteenth century. This span is one of the oldest iron trusses still in use in Iowa, and is the only Keystone truss known to be in use in the state.

Facts 

Overview
Pony truss bridge over White Water Creek on a local road
Location
Dubuque County, Iowa
Status
Open to traffic
History
Built 1868 over the Mississippi River; Built ca. 1940
Design
Pony truss
Dimensions
Length of largest span: 49.9 ft.
Total length: 52.2 ft.
Deck width: 19.0 ft.
Recognition
Posted to the National Register of Historic Places
Approximate latitude, longitude
+42.41734, -90.91051   (decimal degrees)
42°25'02" N, 90°54'38" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/671914/4698229 (zone/easting/northing)
Land survey
T. 88 N., R. 1 W., Sec. 24
USGS topographic map
Epworth
Inventory numbers
IA 146770 (Iowa bridge number)
NRHP 98000787 (National Register of Historic Places reference number)
BH 13445 (Bridgehunter.com ID)
Inspection (as of 04/2007)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 50.2 (out of 100)
Average daily traffic (as of 2005)
150

Categories 

Built during 1940s (1,859)
Dubuque County, Iowa (29)
Functionally obsolete (5,746)
Iowa (2,170)
NR-listed (1,539)
Open (21,983)
Owned by county (14,329)
Pony truss (9,508)
Span length 25-50 feet (6,209)
Total length 50-75 feet (5,025)
Truss (16,173)

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