US Bridges

FAS 253 over Little Harpeth River

Fair

Williamson County, Tennessee · 1.3 MI E SR-6 · Structure no. 94SR2530003

Built
1998
27 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
56 ft
3 main spans
Daily traffic
31,907
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 253 over Little Harpeth River is a concrete continuous culvert carrying FAS 253 over Little Harpeth River in Williamson County, Tennessee. It was built in 1998, so it is 27 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 31,907 vehicles a day, roughly 7% of them trucks, projected to reach 36,944 by 2041. The structure is 56 ft (17.2 m) long and 97 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFAS 253
CrossesLittle Harpeth River
Location1.3 MI E SR-6
RouteState Highway 253
CountyWilliamson County
StateTennessee
Coordinates35.99627, -86.78715
Functional classUrban Other Principal Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to 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 Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length56 ft (17.2 m)
Longest span15 ft (4.6 m)
Deck width97 ft (29.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,907 (2021)
Projected traffic36,944 by 2041
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 253 over Little Harpeth River built?

It was built in 1998, making it 27 years old in 2025.

What condition is FAS 253 over Little Harpeth River 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 2023.

How much traffic does FAS 253 over Little Harpeth River carry?

About 31,907 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is FAS 253 over Little Harpeth River?

The structure is 56 ft (17.2 m) long with a longest span of 15 ft (4.6 m) and a deck 97 ft wide.

Who owns FAS 253 over Little Harpeth River?

It is owned by the State Highway Agency.