US Bridges

SR4000 over Leak Fork Creek

Good

Forsyth County, North Carolina · 0.2 Mi. S. Jct. SR1686 · Structure no. 000000000670536

Built
1962
63 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
48 ft
4 main spans
Daily traffic
32,500
2021 count
Owner
State
State Highway Agency

About this bridge

SR4000 over Leak Fork Creek is a concrete continuous culvert carrying SR4000 over Leak Fork Creek in Forsyth County, North Carolina. It was built in 1962, so it is 63 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 32,500 vehicles a day, roughly 12% of them trucks, projected to reach 65,000 by 2040. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR4000
CrossesLeak Fork Creek
Location0.2 Mi. S. Jct. SR1686
RouteState Highway 4000
Coordinates36.16828, -80.27685
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length48 ft (14.6 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 traffic32,500 (2021)
Projected traffic65,000 by 2040
Trucks12%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
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 SR4000 over Leak Fork Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is SR4000 over Leak Fork 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 SR4000 over Leak Fork Creek carry?

About 32,500 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is SR4000 over Leak Fork Creek?

The structure is 48 ft (14.6 m) long with a longest span of 10 ft (3 m).

Who owns SR4000 over Leak Fork Creek?

It is owned by the State Highway Agency.