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Overview

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Close-up of truss

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Plaque

Missouri
Highway Dept
Bridge No. F.540
1922

Diagram 

Facts 

Overview
Pony truss bridge over a branch of Twelvemile Creek near Zion on CR 417 (Old US 67)
Location
Madison County, Missouri
Status
Open to traffic with a 20 ton limit on a paved road
Future prospects
Does not need to be replaced
History
Built 1922
Design
Riveted, 5-panel Pratt pony truss
Dimensions
Length of largest span: 45.9 ft.
Total length: 56.0 ft.
Deck width: 19.0 ft.
Land survey
T. 32 N., R. 7 E., Sec. 29
Inventory numbers
MoDOT F-540 (Missouri Dept. of Transportation bridge number)
MONBI 14402 (Missouri bridge number on the National Bridge Inventory)
BH 21968 (Bridgehunter.com ID)
Inspection (as of 02/2006)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Sufficiency rating: 54.3 (out of 100)
Average daily traffic (as of 2006)
100

Categories 

5-panel truss (95)
Built 1922 (327)
Built during 1920s (4,025)
Have diagram (35)
Madison County, Missouri (20)
Missouri (2,356)
Open (21,594)
Owned by county (14,142)
Pony truss (9,385)
Pratt truss (1,408)
Riveted (355)
Span length 25-50 feet (6,042)
Total length 50-75 feet (4,935)
Truss (15,745)
US 67 (40)

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