US Bridges

FAP 4 over BNSF Railroad

Fair

Shelby County, Tennessee · 1 MI E of SR176 JCT · Structure no. 79SR0040009

Built
1975
50 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
275 ft
3 main spans
Daily traffic
37,267
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 4 over BNSF Railroad is a steel continuous stringer/multi-beam or girder carrying FAP 4 over BNSF Railroad in Shelby County, Tennessee. It was built in 1975, so it is 50 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 6 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 37,267 vehicles a day, roughly 9% of them trucks, projected to reach 59,627 by 2042. The structure is 275 ft (83.8 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesFAP 4
CrossesBNSF Railroad
Location1 MI E of SR176 JCT
RouteU.S. Route 78
CountyShelby County
StateTennessee
Coordinates35.04356, -89.91956
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length275 ft (83.8 m)
Longest span108 ft (32.9 m)
Deck width43 ft (13.1 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,267 (2021)
Projected traffic59,627 by 2042
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAP 4 over BNSF Railroad built?

It was built in 1975, making it 50 years old in 2025.

What condition is FAP 4 over BNSF 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 February 2025.

How much traffic does FAP 4 over BNSF Railroad carry?

About 37,267 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 4 over BNSF Railroad?

The structure is 275 ft (83.8 m) long with a longest span of 108 ft (32.9 m) and a deck 43 ft wide.

Who owns FAP 4 over BNSF Railroad?

It is owned by the State Highway Agency.