US Bridges

NC150 Nbl over South Fork Muddy Creek

Fair

Forsyth County, North Carolina · 0.9 Mi. N. Jct. SR2983 · Structure no. 000000000670035

Built
1956
69 years old, rebuilt 2002
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
135 ft
3 main spans
Daily traffic
10,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC150 Nbl over South Fork Muddy Creek is a concrete tee beam carrying NC150 Nbl over South Fork Muddy Creek in Forsyth County, North Carolina. It was built in 1956 and reconstructed in 2002, 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 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 10,000 vehicles a day, roughly 12% of them trucks, projected to reach 20,000 by 2040. The structure is 135 ft (41.1 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC150 Nbl
CrossesSouth Fork Muddy Creek
Location0.9 Mi. N. Jct. SR2983
RouteState Highway 150
Coordinates36.01643, -80.26099
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length135 ft (41.1 m)
Longest span44 ft (13.4 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2021)
Projected traffic20,000 by 2040
Trucks12%
Lanes on structure2
Traffic directionOne-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 NC150 Nbl over South Fork Muddy Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2002.

What condition is NC150 Nbl over South Fork Muddy 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 November 2023.

How much traffic does NC150 Nbl over South Fork Muddy Creek carry?

About 10,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is NC150 Nbl over South Fork Muddy Creek?

The structure is 135 ft (41.1 m) long with a longest span of 44 ft (13.4 m) and a deck 33 ft wide.

Who owns NC150 Nbl over South Fork Muddy Creek?

It is owned by the State Highway Agency.