US Bridges

US129 over Little Tennessee River

Fair

Graham County, North Carolina · .3 MI.N.JCT.SR1130 · Structure no. 000000000750034

Built
1978
47 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
566 ft
7 main spans
Daily traffic
850
2022 count
Owner
State
State Highway Agency

About this bridge

US129 over Little Tennessee River is a steel stringer/multi-beam or girder carrying US129 over Little Tennessee River in Graham County, North Carolina. It was built in 1978, so it is 47 years old, older than the North Carolina average of 38.7 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 850 vehicles a day, roughly 8% of them trucks, projected to reach 1,700 by 2040. The structure is 566 ft (172.5 m) long and 34 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesUS129
CrossesLittle Tennessee River
Location.3 MI.N.JCT.SR1130
RouteU.S. Route 129
Coordinates35.44961, -83.94126
Functional classRural Minor 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
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.
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 inspectionJuly 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.9 US tons
Inventory rating47 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 15
Structure length566 ft (172.5 m)
Longest span84 ft (25.6 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2022)
Projected traffic1,700 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 km)
TollOn a free road
National Highway SystemNo

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 US129 over Little Tennessee River built?

It was built in 1978, making it 47 years old in 2025.

What condition is US129 over Little Tennessee 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 July 2023.

How much traffic does US129 over Little Tennessee River carry?

About 850 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is US129 over Little Tennessee River?

The structure is 566 ft (172.5 m) long with a longest span of 84 ft (25.6 m) and a deck 34 ft wide.

Who owns US129 over Little Tennessee River?

It is owned by the State Highway Agency.