US Bridges

Nfa A325 over Thompson Creek

Fair

Gibson County, Tennessee · 2.1 MI SW JCT SR105&CAROL · Structure no. 270A3250001

Built
1984
41 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A325 over Thompson Creek is a concrete continuous culvert carrying Nfa A325 over Thompson Creek in Gibson County, Tennessee. It was built in 1984, so it is 41 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 30 vehicles a day, roughly 2% of them trucks, projected to reach 48 by 2042. The structure is 32 ft (9.8 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A325
CrossesThompson Creek
Location2.1 MI SW JCT SR105&CAROL
RouteCounty Highway 325
CountyGibson County
StateTennessee
Coordinates36.03417, -88.71911
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span16 ft (4.9 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic48 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 A325 over Thompson Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa A325 over Thompson 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 A325 over Thompson Creek carry?

About 30 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A325 over Thompson Creek?

The structure is 32 ft (9.8 m) long with a longest span of 16 ft (4.9 m) and a deck 25 ft wide.

Who owns Nfa A325 over Thompson Creek?

It is owned by the County Highway Agency.