US Bridges

NC42 over Marsh Swamp

Good

Wilson County, North Carolina · 0.1 Mi. E. of SR1142 · Structure no. 000000001950035

Built
1939
86 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
8,500
2021 count
Owner
State
State Highway Agency

About this bridge

NC42 over Marsh Swamp is a concrete culvert carrying NC42 over Marsh Swamp in Wilson County, North Carolina. It was built in 1939, so it is 86 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 8,500 vehicles a day, roughly 8% of them trucks, projected to reach 17,000 by 2040. The structure is 30 ft (9.1 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC42
CrossesMarsh Swamp
Location0.1 Mi. E. of SR1142
RouteState Highway 42
Coordinates35.69841, -78.06037
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
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
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 rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2021)
Projected traffic17,000 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 NC42 over Marsh Swamp built?

It was built in 1939, making it 86 years old in 2025.

What condition is NC42 over Marsh 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 August 2023.

How much traffic does NC42 over Marsh Swamp carry?

About 8,500 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is NC42 over Marsh Swamp?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.

Who owns NC42 over Marsh Swamp?

It is owned by the State Highway Agency.