Rating:
4 votes

Joseph Julian Henry Memorial - Airport Highway Bridge

Map 

Street Views 

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 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)
Quadrangle map:
Boone Dam
Average daily traffic (as of 2015)
8,950
Inventory numbers
TN 82SR0750001 (Tennessee bridge number)
BH 32714 (Bridgehunter.com ID)
Inspection report (as of March 2017)
Overall condition: Good
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Very Good (8 out of 9)
Sufficiency rating: 79.8 (out of 100)
View more at BridgeReports.com

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

Comments 

Joseph Julian Henry Memorial - Airport Highway Bridge
Posted November 3, 2020, by Geoff Hubbs (geoffrey [dot] hubbs [at] att [dot] net)

What happened to Calvin's photos???

Joseph Julian Henry Memorial - Airport Highway Bridge
Posted July 28, 2018, by Timothy and Joann Phillips (northforkcomputer [at] gmail [dot] com)

The good news is: Calvin Sneed did an excellent job documenting this noteworthy bridge. It's always a shame when such a treasure is demolished, but I'm thankful that Calvin took such great pictures.

The bad news is: I didn't discover Bridge Hunting until July of 2018 and missed seeing this bridge in real life.

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.