US Bridges

Nfa 998 (sa 1903) over Harpeth River

Fair

Davidson County, Tennessee · In Nashville · Structure no. 19F00080003

Built
1989
36 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
390 ft
4 main spans
Daily traffic
4,963
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 998 (sa 1903) over Harpeth River is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa 998 (sa 1903) over Harpeth River in Davidson County, Tennessee. It was built in 1989, so it is 36 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 4,963 vehicles a day, roughly 3% of them trucks, projected to reach 8,992 by 2041. The structure is 390 ft (118.9 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 998 (sa 1903)
CrossesHarpeth River
LocationIn Nashville
RouteCounty Highway 998
CountyDavidson County
StateTennessee
Coordinates36.08598, -87.02523
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length390 ft (118.9 m)
Longest span93 ft (28.3 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,963 (2021)
Projected traffic8,992 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 998 (sa 1903) over Harpeth River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Nfa 998 (sa 1903) over 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 May 2023.

How much traffic does Nfa 998 (sa 1903) over Harpeth River carry?

About 4,963 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 998 (sa 1903) over Harpeth River?

The structure is 390 ft (118.9 m) long with a longest span of 93 ft (28.3 m) and a deck 42 ft wide.

Who owns Nfa 998 (sa 1903) over Harpeth River?

It is owned by the County Highway Agency.