Photos 

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Oblique view

Photos taken Dec. 2006 by Ruth Reynolds
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Deck view

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Barricade fence

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Plaque

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1905

Photo taken by Robert Elder in February 2004

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This photo shows how the main span of this bridge is a "Reverse Parker".

Photo taken by Robert Elder in 2002

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Photo taken by Robert Elder in 2002

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Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Reverse Parker through truss bridge over Marais Des Cygnes River on 1st Street in Osawatomie
Location
Osawatomie, Miami County, Kansas
Status
Closed to all traffic
History
Built 1905 by the Kansas City Bridge Co.
Builder
- Kansas City Bridge Co. of Kansas City, Missouri
Design
Reverse Parker through truss
Dimensions
Length of largest span: 121.0 ft.
Total length: 219.1 ft.
Deck width: 16.0 ft.
Vertical clearance above deck: 15.5 ft.
Recognition
Posted to the National Register of Historic Places on January 4, 1990
Approximate latitude, longitude
+38.50506, -94.95372   (decimal degrees)
38°30'18" N, 94°57'13" W   (degrees°minutes'seconds")
Inventory numbers
NRHP 89002187 (National Register of Historic Places reference number)
BH 18104 (Bridgehunter.com ID)
Inspection (as of 03/2003)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 19.5 (out of 100)

Categories 

Built 1905 (329)
Built during 1900s (2,361)
Closed (1,309)
Kansas (1,448)
Kansas City Bridge Co. (13)
Miami County, Kansas (41)
NR-listed (1,485)
Osawatomie, Kansas (4)
Owned by city (1,908)
Span length 100-125 feet (2,271)
Structurally deficient (10,809)
Through truss (5,274)
Total length 175-250 feet (1,788)
Truss (15,821)
Wooden deck (5,159)

Update Log 

Sources 

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Comments 

Asylum Bridge
Posted July 11, 2008, by Robert Elder (bass-tbn [at] ku [dot] edu)

I am not certain when the technology for this style originated initially. This particular bridge was built in 1905 however. I agree, it is a very interesting, and rare style of bridge. Thankfully it has been listed on the National Register of Historic Places. I would like to see it restored however. Most of the bridge, including much of the truss was submerged in a major flood in 2007. Thankfully, it survived.

Asylum Bridge
Posted July 10, 2008, by Anonymous

The Plaque looks like it says "1805", rather than 1905. Is that possible? Did they even have this technology in 1805?

I would vote this bridge the one of the most interesting bridges on this web site. Definitely in the top 5. I sure hope somebody jumps on this beautiful example and preserves it.

Asylum Bridge
Posted July 9, 2008, by Anthony Dillon (spansaver [at] hotmail [dot] com)

It's funny you mention this, because on more than one occasion my wife has threatened to have me committed. I have a unique ability to turn just about any trip into a bridge hunt.......drives her crazy! HUH

Asylum Bridge
Posted July 9, 2008, by Robert Elder (bass-tbn [at] ku [dot] edu)

LOL J.R Manning. I guess with our hobby, any bridge could be the Asylum Bridge. The State of Kansas has a mental health facility near the north end of the bridge. When the bridge was open, it could be used to access the site.

Asylum Bridge
Posted July 9, 2008, by J.R. Manning (thekitchenguy [at] sbcglobal [dot] net)

I love this, if for no other reason than all the names for the bridge, the location and the waterway! Anyone know why it's called the Asylum Bridge? (Besides the fact that most of us bridge hunters are headed there?)

Asylum Bridge
Posted February 28, 2008, by Robert L. Elder (Robertelder1 [at] gmail [dot] com)

The center span of this bridge is actually a Parker Truss with the top chords inverted so they "dip" towards the center of the span, hence the term Reverse Parker. This is easier seen in a side view of the bridge. This bridge is believed to be the only Reverse Parker Truss in existence.

Asylum Bridge
Posted February 27, 2008, by Nathan Holth (form3 [at] historicbridges [dot] org)

Looks like a small cantilever bridge to me, ie a continuous through truss. Stylistically similar to the Thamesville Bridge in Ontario. I am not familiar with the term "reverse parker" unless this was an early term to describe cantilever technology.

Asylum Bridge
Posted February 4, 2007, by Robert L. Elder (Bass-tbn [at] ku [dot] edu)

This is a Reverse Parker through truss. This may possibly be the only example of Reverse Parker in existance.