US Bridges

NC109 over South Fork Muddy Creek

Good

Forsyth County, North Carolina · 0.5 MI.N.JCT.SR2700 · Structure no. 000000000670017

Built
1933
92 years old, rebuilt 2005
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
45 ft
4 main spans
Daily traffic
11,500
2021 count
Owner
State
State Highway Agency

About this bridge

NC109 over South Fork Muddy Creek is a concrete continuous culvert carrying NC109 over South Fork Muddy Creek in Forsyth County, North Carolina. It was built in 1933 and reconstructed in 2005, so it is 92 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,500 vehicles a day, roughly 12% of them trucks, projected to reach 23,000 by 2040. The structure is 45 ft (13.7 m) long.

CarriesNC109
CrossesSouth Fork Muddy Creek
Location0.5 MI.N.JCT.SR2700
RouteState Highway 109
Coordinates36.03853, -80.17917
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 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 rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2021)
Projected traffic23,000 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 NC109 over South Fork Muddy Creek built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2005.

What condition is NC109 over South Fork Muddy Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does NC109 over South Fork Muddy Creek carry?

About 11,500 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is NC109 over South Fork Muddy Creek?

The structure is 45 ft (13.7 m) long with a longest span of 9 ft (2.7 m).

Who owns NC109 over South Fork Muddy Creek?

It is owned by the State Highway Agency.