US Bridges

SR3412 over I-40

Fair

Buncombe County, North Carolina · .06 MI.N.JCT.SR3415 · Structure no. 000000000210326

Built
1966
59 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
406 ft
4 main spans
Daily traffic
5,700
2022 count
Owner
State
State Highway Agency

About this bridge

SR3412 over I-40 is a steel continuous stringer/multi-beam or girder carrying SR3412 over I-40 in Buncombe County, North Carolina. It was built in 1966, so it is 59 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 5,700 vehicles a day, roughly 7% of them trucks, projected to reach 11,400 by 2040. The structure is 406 ft (123.7 m) long and 33 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSR3412
CrossesI-40
Location.06 MI.N.JCT.SR3415
RouteState Highway 3412
CountyBuncombe County
StateNorth Carolina
Coordinates35.55588, -82.61886
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+1 approach)
Design loadHS 20 + Mod
Structure length406 ft (123.7 m)
Longest span103 ft (31.3 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2022)
Projected traffic11,400 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5.6 mi (9 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR3412 over I-40 built?

It was built in 1966, making it 59 years old in 2025.

What condition is SR3412 over I-40 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 October 2023.

How much traffic does SR3412 over I-40 carry?

About 5,700 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR3412 over I-40?

The structure is 406 ft (123.7 m) long with a longest span of 103 ft (31.3 m) and a deck 33 ft wide.

Who owns SR3412 over I-40?

It is owned by the State Highway Agency.