US Bridges

FAS 99 over Harpeth River

Good

Rutherford County, Tennessee · 1.3 MI E JCT SR16&SR269 · Structure no. 75SR0990017

Built
1990
35 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
4,301
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 99 over Harpeth River is a concrete continuous culvert carrying FAS 99 over Harpeth River in Rutherford County, Tennessee. It was built in 1990, so it is 35 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,301 vehicles a day, roughly 6% of them trucks, projected to reach 7,024 by 2041. The structure is 27 ft (8.2 m) long and 38 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFAS 99
CrossesHarpeth River
Location1.3 MI E JCT SR16&SR269
RouteState Highway SR099
Coordinates35.73727, -86.62775
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than 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 length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,301 (2021)
Projected traffic7,024 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FAS 99 over Harpeth River built?

It was built in 1990, making it 35 years old in 2025.

What condition is FAS 99 over Harpeth River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does FAS 99 over Harpeth River carry?

About 4,301 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAS 99 over Harpeth River?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 38 ft wide.

Who owns FAS 99 over Harpeth River?

It is owned by the State Highway Agency.