US Bridges

NC242 over Br. of Mingo Swamp

Fair

Johnston County, North Carolina · 100 N of JCT SR1205 · Structure no. 000000001010048

Built
1986
39 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
4,900
2022 count
Owner
State
State Highway Agency

About this bridge

NC242 over Br. of Mingo Swamp is a concrete continuous culvert carrying NC242 over Br. of Mingo Swamp in Johnston County, North Carolina. It was built in 1986, so it is 39 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 4,900 vehicles a day, roughly 7% of them trucks, projected to reach 9,800 by 2040. The structure is 23 ft (7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNC242
CrossesBr. of Mingo Swamp
Location100 N of JCT SR1205
RouteState Highway 242
CountyJohnston County
StateNorth Carolina
Coordinates35.34332, -78.52782
Functional classRural Major Collector

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 inspectionOctober 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 rating54.9 US tons
Inventory rating43 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (7 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 traffic4,900 (2022)
Projected traffic9,800 by 2040
Trucks7%
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 NC242 over Br. of Mingo Swamp built?

It was built in 1986, making it 39 years old in 2025.

What condition is NC242 over Br. of Mingo 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 October 2024.

How much traffic does NC242 over Br. of Mingo Swamp carry?

About 4,900 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC242 over Br. of Mingo Swamp?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.3 m).

Who owns NC242 over Br. of Mingo Swamp?

It is owned by the State Highway Agency.