US Bridges

US501 over Ellerbe Creek

Fair

Durham County, North Carolina · 1.3 Mi. S. of Jct. SR1443 · Structure no. 000000000630278

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
30 ft
3 main spans
Daily traffic
35,000
2021 count
Owner
State
State Highway Agency

About this bridge

US501 over Ellerbe Creek is a concrete continuous culvert carrying US501 over Ellerbe Creek in Durham County, North Carolina. It was built in 1981, so it is 44 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 35,000 vehicles a day, roughly 12% of them trucks, projected to reach 70,000 by 2040. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS501
CrossesEllerbe Creek
Location1.3 Mi. S. of Jct. SR1443
RouteU.S. Route 501
Coordinates36.03202, -78.90553
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 rating58 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length30 ft (9.1 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 traffic35,000 (2021)
Projected traffic70,000 by 2040
Trucks12%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 US501 over Ellerbe Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is US501 over Ellerbe 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 2023.

How much traffic does US501 over Ellerbe Creek carry?

About 35,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US501 over Ellerbe Creek?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3 m).

Who owns US501 over Ellerbe Creek?

It is owned by the State Highway Agency.