US Bridges

NC28 over Lewellyn Branch

Good

Swain County, North Carolina · 1.4 MI.N.JCT.SR1246 · Structure no. 000000001730165

Built
1960
65 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
800
2022 count
Owner
State
State Highway Agency

About this bridge

NC28 over Lewellyn Branch is a concrete continuous culvert carrying NC28 over Lewellyn Branch in Swain County, North Carolina. It was built in 1960, so it is 65 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 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 800 vehicles a day, roughly 7% of them trucks, projected to reach 1,600 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 20.5 mi (33 km).

CarriesNC28
CrossesLewellyn Branch
Location1.4 MI.N.JCT.SR1246
RouteState Highway 28
Coordinates35.45106, -83.81797
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2022)
Projected traffic1,600 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 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 NC28 over Lewellyn Branch built?

It was built in 1960, making it 65 years old in 2025.

What condition is NC28 over Lewellyn Branch 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 August 2023.

How much traffic does NC28 over Lewellyn Branch carry?

About 800 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC28 over Lewellyn Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns NC28 over Lewellyn Branch?

It is owned by the State Highway Agency.