US Bridges

IRR BIA RTE 1236 over Oconaluftee River

Fair

Swain County, North Carolina · 4.8 KM SW of Cherokee Nc · Structure no. 00000000000S274

Built
1997
28 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
206 ft
3 main spans
Daily traffic
450
2024 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 1236 over Oconaluftee River is a prestressed concrete box beam or girders - multiple carrying IRR BIA RTE 1236 over Oconaluftee River in Swain County, North Carolina. It was built in 1997, so it is 28 years old, younger 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 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 450 vehicles a day, roughly 5% of them trucks, projected to reach 540 by 2044. The structure is 206 ft (62.9 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIRR BIA RTE 1236
CrossesOconaluftee River
Location4.8 KM SW of Cherokee Nc
RouteFederal Lands Road 1236
Coordinates35.45871, -83.35766
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.4 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length206 ft (62.9 m)
Longest span68 ft (20.7 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2024)
Projected traffic540 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 IRR BIA RTE 1236 over Oconaluftee River built?

It was built in 1997, making it 28 years old in 2025.

What condition is IRR BIA RTE 1236 over Oconaluftee 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 2024.

How much traffic does IRR BIA RTE 1236 over Oconaluftee River carry?

About 450 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is IRR BIA RTE 1236 over Oconaluftee River?

The structure is 206 ft (62.9 m) long with a longest span of 68 ft (20.7 m) and a deck 36 ft wide.

Who owns IRR BIA RTE 1236 over Oconaluftee River?

It is owned by the Bureau of Indian Affairs.