US Bridges

NC150 Nbl over Salem Creek

Fair

Forsyth County, North Carolina · 0.3 Mi. N. Jct. NC67 · Structure no. 000000000670242

Built
1956
69 years old, rebuilt 1966
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
120 ft
3 main spans
Daily traffic
22,500
2022 count
Owner
State
State Highway Agency

About this bridge

NC150 Nbl over Salem Creek is a concrete tee beam carrying NC150 Nbl over Salem Creek in Forsyth County, North Carolina. It was built in 1956 and reconstructed in 1966, so it is 69 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 5 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 22,500 vehicles a day, roughly 12% of them trucks, projected to reach 45,000 by 2040. The structure is 120 ft (36.5 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC150 Nbl
CrossesSalem Creek
Location0.3 Mi. N. Jct. NC67
RouteState Highway 150
Coordinates36.07098, -80.25804
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating51.9 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length120 ft (36.5 m)
Longest span39 ft (11.8 m)
Deck width49 ft (14.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,500 (2022)
Projected traffic45,000 by 2040
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC150 Nbl over Salem Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1966.

What condition is NC150 Nbl over Salem 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 2024.

How much traffic does NC150 Nbl over Salem Creek carry?

About 22,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is NC150 Nbl over Salem Creek?

The structure is 120 ft (36.5 m) long with a longest span of 39 ft (11.8 m) and a deck 49 ft wide.

Who owns NC150 Nbl over Salem Creek?

It is owned by the State Highway Agency.