US Bridges

FAP 6 over Big Bigby Creek / Tsrr

Fair

Maury County, Tennessee · 2.5 M.N. SR 20 · Structure no. 60SR0060084

Built
1999
26 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
985 ft
6 main spans
Daily traffic
15,807
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 6 over Big Bigby Creek / Tsrr is a steel continuous stringer/multi-beam or girder carrying FAP 6 over Big Bigby Creek / Tsrr in Maury County, Tennessee. It was built in 1999, so it is 26 years old, younger 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 15,807 vehicles a day, roughly 7% of them trucks, projected to reach 21,629 by 2042. The structure is 985 ft (300.2 m) long and 44 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesFAP 6
CrossesBig Bigby Creek / Tsrr
Location2.5 M.N. SR 20
RouteU.S. Route 31
CountyMaury County
StateTennessee
Coordinates35.46977, -87.26505
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length985 ft (300.2 m)
Longest span180 ft (54.9 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,807 (2021)
Projected traffic21,629 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed39.8 mi (64 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$937,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 6 over Big Bigby Creek / Tsrr built?

It was built in 1999, making it 26 years old in 2025.

What condition is FAP 6 over Big Bigby Creek / Tsrr 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 March 2024.

How much traffic does FAP 6 over Big Bigby Creek / Tsrr carry?

About 15,807 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is FAP 6 over Big Bigby Creek / Tsrr?

The structure is 985 ft (300.2 m) long with a longest span of 180 ft (54.9 m) and a deck 44 ft wide.

Who owns FAP 6 over Big Bigby Creek / Tsrr?

It is owned by the State Highway Agency.