US Bridges

Nfa A325 over West Fork

Fair

Lewis County, Tennessee · 1 M W Maury CO Line · Structure no. 510A3250001

Built
2010
15 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
10
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A325 over West Fork is a concrete continuous culvert carrying Nfa A325 over West Fork in Lewis County, Tennessee. It was built in 2010, so it is 15 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 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 10 vehicles a day, roughly 2% of them trucks, projected to reach 16 by 2039. The structure is 38 ft (11.6 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A325
CrossesWest Fork
Location1 M W Maury CO Line
RouteCounty Highway 325
CountyLewis County
StateTennessee
Coordinates35.51833, -87.30043
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 protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span18 ft (5.5 m)
Deck width28 ft (8.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic16 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 West Fork built?

It was built in 2010, making it 15 years old in 2025.

What condition is Nfa A325 over West Fork 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 May 2023.

How much traffic does Nfa A325 over West Fork carry?

About 10 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A325 over West Fork?

The structure is 38 ft (11.6 m) long with a longest span of 18 ft (5.5 m) and a deck 28 ft wide.

Who owns Nfa A325 over West Fork?

It is owned by the County Highway Agency.