US Bridges

NC906 over River Swamp

Good

Brunswick County, North Carolina · 0.1 Mi.S. JCT.SR1506 · Structure no. 000000000190025

Built
2014
11 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
7,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC906 over River Swamp is a prestressed concrete continuous stringer/multi-beam or girder carrying NC906 over River Swamp in Brunswick County, North Carolina. It was built in 2014, so it is 11 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 7,000 vehicles a day, roughly 7% of them trucks, projected to reach 14,000 by 2040. The structure is 120 ft (36.5 m) long and 36 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNC906
CrossesRiver Swamp
Location0.1 Mi.S. JCT.SR1506
RouteState Highway 906
Coordinates34.0118, -78.14675
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.9 US tons
Inventory rating54.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length120 ft (36.5 m)
Longest span68 ft (20.7 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2021)
Projected traffic14,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 NC906 over River Swamp built?

It was built in 2014, making it 11 years old in 2025.

What condition is NC906 over River Swamp 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 June 2023.

How much traffic does NC906 over River Swamp carry?

About 7,000 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is NC906 over River Swamp?

The structure is 120 ft (36.5 m) long with a longest span of 68 ft (20.7 m) and a deck 36 ft wide.

Who owns NC906 over River Swamp?

It is owned by the State Highway Agency.