US Bridges

Nfa A499 over Flippen Creek

Fair

Gibson County, Tennessee · 1.6 MI NW JCT SR43&SR77 · Structure no. 270A4990001

Built
1992
33 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
230
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A499 over Flippen Creek is a concrete culvert carrying Nfa A499 over Flippen Creek in Gibson County, Tennessee. It was built in 1992, so it is 33 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 230 vehicles a day, roughly 2% of them trucks, projected to reach 368 by 2039. The structure is 21 ft (6.4 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A499
CrossesFlippen Creek
Location1.6 MI NW JCT SR43&SR77
RouteCounty Highway 499
CountyGibson County
StateTennessee
Coordinates35.94208, -88.77402
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2020)
Projected traffic368 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A499 over Flippen Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa A499 over Flippen 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 July 2023.

How much traffic does Nfa A499 over Flippen Creek carry?

About 230 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A499 over Flippen Creek?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 33 ft wide.

Who owns Nfa A499 over Flippen Creek?

It is owned by the County Highway Agency.