US Bridges

FAP 50 over Little Bigby Creek

Fair

Maury County, Tennessee · 0.04 Mi.N.W.Jct.Fas 6368 · Structure no. 60SR0500009

Built
1938
87 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
172 ft
4 main spans
Daily traffic
11,402
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 50 over Little Bigby Creek is a concrete tee beam carrying FAP 50 over Little Bigby Creek in Maury County, Tennessee. It was built in 1938, so it is 87 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 11,402 vehicles a day, roughly 4% of them trucks, projected to reach 19,504 by 2040. The structure is 172 ft (52.4 m) long and 52 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFAP 50
CrossesLittle Bigby Creek
Location0.04 Mi.N.W.Jct.Fas 6368
RouteU.S. Route 412
Coordinates35.61725, -87.06572
Functional classUrban Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span43 ft (13.1 m)
Deck width52 ft (15.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,402 (2021)
Projected traffic19,504 by 2040
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 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 with deck rehabilitation or replacement
Estimated improvement cost$649,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 50 over Little Bigby Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is FAP 50 over Little Bigby Creek 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 50 over Little Bigby Creek carry?

About 11,402 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAP 50 over Little Bigby Creek?

The structure is 172 ft (52.4 m) long with a longest span of 43 ft (13.1 m) and a deck 52 ft wide.

Who owns FAP 50 over Little Bigby Creek?

It is owned by the State Highway Agency.