US Bridges

NC55 over Ellerbe Creek

Fair

Durham County, North Carolina · 200 FT.W.JCT.I-85&NC55 · Structure no. 000000000630124

Built
2004
21 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
67 ft
4 main spans
Daily traffic
20,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC55 over Ellerbe Creek is a concrete continuous culvert carrying NC55 over Ellerbe Creek in Durham County, North Carolina. It was built in 2004, so it is 21 years old, younger 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 20,000 vehicles a day, roughly 6% of them trucks, projected to reach 40,000 by 2040. The structure is 67 ft (20.4 m) long.

CarriesNC55
CrossesEllerbe Creek
Location200 FT.W.JCT.I-85&NC55
RouteState Highway 55
Coordinates36.01516, -78.88818
Functional classUrban Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length67 ft (20.4 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2021)
Projected traffic40,000 by 2040
Trucks6%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 NC55 over Ellerbe Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is NC55 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 May 2023.

How much traffic does NC55 over Ellerbe Creek carry?

About 20,000 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is NC55 over Ellerbe Creek?

The structure is 67 ft (20.4 m) long with a longest span of 14 ft (4.2 m).

Who owns NC55 over Ellerbe Creek?

It is owned by the State Highway Agency.