US Bridges

NC11 over Eagle Swamp

Fair

Lenoir County, North Carolina · 6.0 MI N JCT NC55 · Structure no. 000000001070075

Built
1958
67 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
17,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC11 over Eagle Swamp is a concrete continuous culvert carrying NC11 over Eagle Swamp 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 17,000 vehicles a day, roughly 14% of them trucks, projected to reach 34,000 by 2040. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC11
CrossesEagle Swamp
Location6.0 MI N JCT NC55
RouteState Highway 11
Coordinates35.36552, -77.46012
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 + Mod
Structure length26 ft (7.9 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2021)
Projected traffic34,000 by 2040
Trucks14%
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 over Eagle Swamp built?

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

What condition is NC11 over Eagle Swamp 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 over Eagle Swamp carry?

About 17,000 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is NC11 over Eagle Swamp?

The structure is 26 ft (7.9 m) long with a longest span of 11 ft (3.3 m).

Who owns NC11 over Eagle Swamp?

It is owned by the State Highway Agency.