Rating:
2 votes

Airport Highway Bridge

Sullivan County, Tennessee
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Photos 

3 span K-4 Hybrid Camelback, 2 Warren PTC through truss spans on State Highway 75

View is from west side, looking east

Photo taken by Calvin Sneed in July 2008

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Map 

Street Views 

View Uglybridges.com report

Facts 

Overview
Lost camelback through truss bridge over South Fork Holston River on State Highway 75
Location
Sullivan County, Tennessee
Status
Demolished, replaced by concrete tee-beam bridge
History
Built 1938, closed 2010, demolished 2011
Builder
- Tennessee State Highway Department
Design
3 middle spans (K-4 Hybrid Camelback)
2 approach spans on either side (Warren PTC Riveted)
Dimensions
Length of largest span: 180.1 ft.
Total length: 877.0 ft.
Deck width: 23.9 ft.
Vertical clearance above deck: 15.0 ft.
Also called
Highway 75 Bridge
Approximate latitude, longitude
+36.44831, -82.44232   (decimal degrees)
36°26'54" N, 82°26'32" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/370742/4034641 (zone/easting/northing)
USGS topographic map
Boone Dam
Inventory numbers
TN 82SR0750001 (Tennessee bridge number)
BH 32714 (Bridgehunter.com ID)
Inspection (as of 05/2009)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 31.5 (out of 100)
Average daily traffic (as of 2009)
10,350

Categories 

Built 1938 (581)
Built during 1930s (8,553)
Camelback truss (232)
Have street view (9,889)
Holston River (3)
Lost (10,359)
Lost 2011 (254)
Lost during 2010s (681)
Owned by state (9,807)
Replaced by new bridge (7,133)
Span length 175-250 feet (1,483)
 Structurally deficient (16,677)
Sullivan County, Tennessee (18)
TN 75 (1)
Tennessee (770)
Tennessee State Highway Department (19)
Through truss (9,205)
Total length 500-1000 feet (1,805)
Truss (23,566)
Warren through truss (926)
Warren truss (3,957)

Update Log 

  • August 26, 2010: New photos from Calvin Sneed
  • July 10, 2010: New Street View added by Calvin Sneed
  • March 25, 2010: New photos from Calvin Sneed
  • February 25, 2009: Updated by C Hanchey
  • August 3, 2008: Updated by Calvin Sneed
  • July 29, 2008: Updated by Calvin Sneed
  • July 28, 2008: Updated by Kim Harvey: added category
  • July 28, 2008: New photos from Calvin Sneed
  • July 27, 2008: Updated by Calvin Sneed
  • July 4, 2008: Updated by Calvin Sneed

Sources 

  • Calvin Sneed - us43137415 [at] yahoo [dot] com
  • Kim Harvey
  • C Hanchey - cmh2315fl [at] yahoo [dot] com
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Comments 

Airport Highway Bridge
Posted May 18, 2010, by Calvin Sneed (us43137415 [at] yahoo [dot] com)

The Camelback spans here are also not K-Parker spans.

The state of Tennessee did not have any K-Parker spans..

Back in the 20's and 30's, the state built hybrids utilizing the K-span concept to get the span length engineers wanted, but the bridges are hybrids only, not genuine K-spans.

SOURCE: T-DOT

Airport Highway Bridge
Posted December 31, 2009, by Calvin Sneed (us43137415 [at] yahoo [dot] com)

You're correct.. they are not ponies.. my bad. T-DOT Region 1's Engineer in Charge of Bridges, says the two approach spans on either end are Through Camelback, Subdivided Warren Trusses. I sent him pictures and requested clarification.

Airport Highway Bridge
Posted January 7, 2009, by anthony dillon (spansaver [at] hotmail [dot] com)

The approach spans on this bridge are unique. They are not ponies as stated in the text, but are indeed through trusses. They have an arched top-chord, but with only 4 slopes. A Camelback has 5 and a Parker 6 or more. Not sure what you would classify these spans as.