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Little Niangua Swinging Bridge

Camden County, Missouri
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Photos 

Overview

Photo taken 2005 by Brian Roos

Map 

Street View 

View Uglybridges.com report

Facts 

Overview
Self-anchored suspension bridge over Little Niangua River on Route J between MO 7 and US 54
Location
Camden County, Missouri
Status
Open to two-lane traffic
History
Built 1932
Builders
- American Steel & Wire Co. (Fabrication)
- Clinton Bridge Works of Clinton, Iowa
- Skully Steel Co. (Fabrication)
Design
Self-anchor suspension
Dimensions
Length of largest span: 225.0 ft.
Total length: 523.8 ft.
Deck width: 20.0 ft.
Vertical clearance above deck: 15.1 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+38.06562, -92.90987   (decimal degrees)
38°03'56" N, 92°54'36" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/507906/4213099 (zone/easting/northing)
Land survey
T. 38 N., R. 18 W., Sec. 4
USGS topographic map
Barnumton
Inventory numbers
MoDOT S-391 (Missouri Dept. of Transportation bridge number)
MONBI 8681 (Missouri bridge number on the National Bridge Inventory)
BH 21070 (Bridgehunter.com ID)
Inspection (as of 01/2012)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 3.0 (out of 100)
Average daily traffic (as of 2011)
816

Categories 

American Steel & Wire Co. (1)
Built 1932 (730)
Built during 1930s (8,551)
Camden County, Missouri (13)
Clinton Bridge Works (6)
Have street view (9,900)
Missouri (4,527)
NR-eligible (3,751)
Open (28,317)
 Owned by state (9,810)
Self-anchored (4)
Skully Steel Co. (1)
Span length 175-250 feet (1,484)
Structurally deficient (16,683)
Suspension (278)
Swinging bridges of Missouri (6)
Total length 500-1000 feet (1,805)

Update Log 

  • June 4, 2008: New photos from James Baughn
  • August 18, 2006: Posted photos from Brian Roos

Sources 

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Comments 

Little Niangua Swinging Bridge
Posted June 6, 2006, by Brian Roos (dragon8warrior [at] gmail [dot] com)

This bridge is about 25 minutes from where I work. It’s a very nice example of a self-anchored swinging bridge. It is 2 lanes and looks very sound, but does have quite a bit of rust on the metal. The deck is a metal grate deck with no concrete surface. It’s neat below the bridge because all the light shines through the deck. It’s also very loud when you drive across it. I will send some pictures to the website soon.