US Bridges

Nfa A348 over Leipers Fork Creek

Fair

Williamson County, Tennessee · 4.9 MI NW JCT SR246&MAURY · Structure no. 940A3480001

Built
1970
55 years old, rebuilt 1994
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
54 ft
2 main spans
Daily traffic
1,020
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A348 over Leipers Fork Creek is a concrete slab carrying Nfa A348 over Leipers Fork Creek in Williamson County, Tennessee. It was built in 1970 and reconstructed in 1994, so it is 55 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 1,020 vehicles a day, roughly 2% of them trucks, projected to reach 1,632 by 2041. The structure is 54 ft (16.5 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesNfa A348
CrossesLeipers Fork Creek
Location4.9 MI NW JCT SR246&MAURY
RouteCounty Highway 348
CountyWilliamson County
StateTennessee
Coordinates35.8444, -87.033
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.5 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span24 ft (7.3 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,020 (2020)
Projected traffic1,632 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$182,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A348 over Leipers Fork Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1994.

What condition is Nfa A348 over Leipers Fork 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 May 2023.

How much traffic does Nfa A348 over Leipers Fork Creek carry?

About 1,020 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A348 over Leipers Fork Creek?

The structure is 54 ft (16.5 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns Nfa A348 over Leipers Fork Creek?

It is owned by the County Highway Agency.