Photos
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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 |
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Pony truss span over land (each end has a pony truss span) Photo taken by Calvin Sneed in July 2008 |
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Ground clearing for new bridge Photo taken by Calvin Sneed in July 2008 |
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Bridge pier Photo taken by Calvin Sneed in July 2008 |
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Clearing on south side (upriver) for new concrete I-beam girder bridge Photo taken by Calvin Sneed in July 2008 |
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Bridge approach from west side, eastbound towards the airport and Blountville Photo taken by Calvin Sneed in July 2008 |
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Bridge approach from east side, westbound towards Highway 36, I-26 and Jonesborough Photo taken by Calvin Sneed in July 2008 |
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Bridge main spans (other pony truss is to the left off-scren) Photo taken by Calvin Sneed in July 2008 |
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Rain soaked road way eastbound across bridge Photo taken by Calvin Sneed in July 2008 |
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
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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
- 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 - ayrlieofremora [at] yahoo [dot] com
- C Hanchey - cmh2315 [at] yahoo [dot] com