Historic Bridges of the U.S. | Airport Highway Bridge

Overview

Post comment

Contact webmaster

On this page: Photos · Map · Facts · Categories · Update Log · Sources · Comments

Photos

< Previous (1 of 9) Next >

Five -span Pennsylvania-Petit (Pratt) through truss bridge on State Highway 75.

View is from west side

Photo taken by Calvin Sneed in July 2008

View high-res version

< Previous (2 of 9) Next >

Pony truss span over land (each end has a pony truss span)

Photo taken by Calvin Sneed in July 2008

View high-res version

< Previous (3 of 9) Next >

Ground clearing for new bridge

Photo taken by Calvin Sneed in July 2008

View high-res version

< Previous (4 of 9) Next >

Bridge pier

Photo taken by Calvin Sneed in July 2008

View high-res version

< Previous (5 of 9) Next >

Clearing on south side (upriver) for new concrete I-beam girder bridge

Photo taken by Calvin Sneed in July 2008

View high-res version

< Previous (6 of 9) Next >

Bridge approach from west side, eastbound towards the airport and Blountville

Photo taken by Calvin Sneed in July 2008

View high-res version

< Previous (7 of 9) Next >

Bridge approach from east side, westbound towards Highway 36, I-26 and Jonesborough

Photo taken by Calvin Sneed in July 2008

View high-res version

< Previous (8 of 9) Next >

Bridge main spans (other pony truss is to the left off-scren)

Photo taken by Calvin Sneed in July 2008

View high-res version

< Previous (9 of 9) Next >

Rain soaked road way eastbound across bridge

Photo taken by Calvin Sneed in July 2008

View high-res version

Map

Vicinity map

Map links:

Facts

Overview: Pennsylvania-Petit (Pratt)Truss bridge over South Holston River on State Highway 75
Location: Sullivan County, Tennessee
Status: Open to traffic, but scheduled to be torn down when replacement bridge is built
History: Built 1938
Design: 3 middle spans Pratt Truss (Pennsylvania-Petit)
2 approach spans on either side Pony Truss
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: +36.44722, -82.44333 (decimal degrees)
36°26'50" N, 82°26'36" W (degrees°minutes'seconds")
Approximate UTM coordinates: 17/370650/4034521 (zone/easting/northing)
USGS topographic map: Boone Dam
Inventory number: BH 32714 (Bridgehunter.com ID)
Inspection (as of 06/2007): 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: 28.9 (out of 100)
Average daily traffic (as of 2007): 11,110

Update Log

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

Comments

Post a comment here · Contact webmaster