US Bridges

FAP 115 347587C over CSX Railroad

Fair

Knox County, Tennessee · Near Knoxville · Structure no. 47SR1150005

Built
1964
61 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
172 ft
3 main spans
Daily traffic
49,262
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 115 347587C over CSX Railroad is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP 115 347587C over CSX Railroad in Knox County, Tennessee. It was built in 1964, so it is 61 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 49,262 vehicles a day, roughly 9% of them trucks, projected to reach 75,066 by 2042. The structure is 172 ft (52.4 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFAP 115 347587C
CrossesCSX Railroad
LocationNear Knoxville
RouteU.S. Route 129
CountyKnox County
StateTennessee
Coordinates35.89556, -83.95285
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span57 ft (17.4 m)
Deck width34 ft (10.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,262 (2021)
Projected traffic75,066 by 2042
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$655,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAP 115 347587C over CSX Railroad built?

It was built in 1964, making it 61 years old in 2025.

What condition is FAP 115 347587C over CSX Railroad in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does FAP 115 347587C over CSX Railroad carry?

About 49,262 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 115 347587C over CSX Railroad?

The structure is 172 ft (52.4 m) long with a longest span of 57 ft (17.4 m) and a deck 34 ft wide.

Who owns FAP 115 347587C over CSX Railroad?

It is owned by the State Highway Agency.