US Bridges

NC11 NC55 over Adkin Branch

Fair

Lenoir County, North Carolina · 1.3 Mi. N. Jct. US70BUS · Structure no. 000000001070065

Built
1958
67 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
14,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC11 NC55 over Adkin Branch is a concrete continuous culvert carrying NC11 NC55 over Adkin Branch in Lenoir County, North Carolina. It was built in 1958, so it is 67 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 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 14,000 vehicles a day, roughly 12% of them trucks, projected to reach 28,000 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC11 NC55
CrossesAdkin Branch
Location1.3 Mi. N. Jct. US70BUS
RouteState Highway 11
Coordinates35.27065, -77.57031
Functional classUrban Other Principal 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than 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
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 traffic14,000 (2021)
Projected traffic28,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 NC11 NC55 over Adkin Branch built?

It was built in 1958, making it 67 years old in 2025.

What condition is NC11 NC55 over Adkin Branch 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 February 2024.

How much traffic does NC11 NC55 over Adkin Branch carry?

About 14,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is NC11 NC55 over Adkin Branch?

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

Who owns NC11 NC55 over Adkin Branch?

It is owned by the State Highway Agency.