US Bridges

I65 over Little Harpeth River

Fair

Williamson County, Tennessee · .6 M NE JCT I65&SR253 · Structure no. 94I00650031

Built
1965
60 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
128,294
2021 count
Owner
State
State Highway Agency

About this bridge

I65 over Little Harpeth River is a concrete continuous culvert carrying I65 over Little Harpeth River in Williamson County, Tennessee. It was built in 1965, so it is 60 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 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 128,294 vehicles a day, roughly 7% of them trucks, projected to reach 190,003 by 2041. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesI65
CrossesLittle Harpeth River
Location.6 M NE JCT I65&SR253
RouteInterstate 65
CountyWilliamson County
StateTennessee
Coordinates36.00267, -86.79217
Functional classUrban Principal Arterial - Interstate

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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128,294 (2021)
Projected traffic190,003 by 2041
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$593,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I65 over Little Harpeth River built?

It was built in 1965, making it 60 years old in 2025.

What condition is I65 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 February 2023.

How much traffic does I65 over Little Harpeth River carry?

About 128,294 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I65 over Little Harpeth River?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).

Who owns I65 over Little Harpeth River?

It is owned by the State Highway Agency.