US Bridges

NC18 over East Prong Hunting Creek

Fair

Burke County, North Carolina · 0.1 MI.N.JCT.I40 · Structure no. 000000000230041

Built
1950
75 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
15,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC18 over East Prong Hunting Creek is a concrete continuous culvert carrying NC18 over East Prong Hunting Creek in Burke County, North Carolina. It was built in 1950, so it is 75 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 15,000 vehicles a day, roughly 12% of them trucks, projected to reach 30,000 by 2040. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC18
CrossesEast Prong Hunting Creek
Location0.1 MI.N.JCT.I40
RouteState Highway 18
Coordinates35.72322, -81.65747
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 rating65.9 US tons
Inventory rating39.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 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 traffic15,000 (2021)
Projected traffic30,000 by 2040
Trucks12%
Lanes on structure5
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 NC18 over East Prong Hunting Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is NC18 over East Prong Hunting Creek 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 August 2023.

How much traffic does NC18 over East Prong Hunting Creek carry?

About 15,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is NC18 over East Prong Hunting Creek?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m).

Who owns NC18 over East Prong Hunting Creek?

It is owned by the State Highway Agency.