US Bridges

NC150 Sbl over Salem Creek

Fair

Forsyth County, North Carolina · 0.3 Mi. N. Jct. NC67 · Structure no. 000000000670003

Built
1966
59 years old, rebuilt 1985
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
11,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC150 Sbl over Salem Creek is a prestressed concrete stringer/multi-beam or girder carrying NC150 Sbl over Salem Creek in Forsyth County, North Carolina. It was built in 1966 and reconstructed in 1985, so it is 59 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 11,000 vehicles a day, roughly 12% of them trucks, projected to reach 22,000 by 2040. The structure is 120 ft (36.5 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC150 Sbl
CrossesSalem Creek
Location0.3 Mi. N. Jct. NC67
RouteState Highway 150
Coordinates36.07093, -80.25824
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to 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 rating99 US tons
Inventory rating60 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length120 ft (36.5 m)
Longest span39 ft (11.8 m)
Deck width59 ft (18.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2021)
Projected traffic22,000 by 2040
Trucks12%
Lanes on structure4
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 Sbl over Salem Creek built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1985.

What condition is NC150 Sbl 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 Sbl over Salem Creek carry?

About 11,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is NC150 Sbl 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 59 ft wide.

Who owns NC150 Sbl over Salem Creek?

It is owned by the State Highway Agency.