US Bridges

IRR BIA Route 405 over Bunches Creek

Good

Swain County, North Carolina · 11.3 KM NE of Cherokee Nc · Structure no. 00000000000S269

Built
1996
29 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
100
2024 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA Route 405 over Bunches Creek is a prestressed concrete box beam or girders - multiple carrying IRR BIA Route 405 over Bunches Creek in Swain County, North Carolina. It was built in 1996, so it is 29 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 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 120 by 2044. The structure is 47 ft (14.2 m) long and 36 ft wide. If it were closed, the detour would be 22.4 mi (36 km).

CarriesIRR BIA Route 405
CrossesBunches Creek
Location11.3 KM NE of Cherokee Nc
RouteFederal Lands Road 405
Coordinates35.54734, -83.23041
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating53.4 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length47 ft (14.2 m)
Longest span45 ft (13.8 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic120 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed22.4 mi (36 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 Route 405 over Bunches Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is IRR BIA Route 405 over Bunches Creek 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 March 2024.

How much traffic does IRR BIA Route 405 over Bunches Creek carry?

About 100 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is IRR BIA Route 405 over Bunches Creek?

The structure is 47 ft (14.2 m) long with a longest span of 45 ft (13.8 m) and a deck 36 ft wide.

Who owns IRR BIA Route 405 over Bunches Creek?

It is owned by the Bureau of Indian Affairs.