US Bridges

I40 Ramps over Buffalo Creek

Fair

Guilford County, North Carolina · 0.10 Mi. E. Jct. SR4121 · Structure no. 000000000810315

Built
1976
49 years old, rebuilt 1996
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
59 ft
4 main spans
Daily traffic
8,100
2022 count
Owner
State
State Highway Agency

About this bridge

I40 Ramps over Buffalo Creek is a concrete continuous culvert carrying I40 Ramps over Buffalo Creek in Guilford County, North Carolina. It was built in 1976 and reconstructed in 1996, so it is 49 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 8,100 vehicles a day, roughly 16% of them trucks, projected to reach 16,200 by 2040. The structure is 59 ft (17.9 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI40 Ramps
CrossesBuffalo Creek
Location0.10 Mi. E. Jct. SR4121
RouteInterstate 40
Coordinates36.0443, -79.83816
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length59 ft (17.9 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 traffic8,100 (2022)
Projected traffic16,200 by 2040
Trucks16%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I40 Ramps over Buffalo Creek built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 1996.

What condition is I40 Ramps over Buffalo 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 July 2024.

How much traffic does I40 Ramps over Buffalo Creek carry?

About 8,100 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I40 Ramps over Buffalo Creek?

The structure is 59 ft (17.9 m) long with a longest span of 10 ft (3 m).

Who owns I40 Ramps over Buffalo Creek?

It is owned by the State Highway Agency.