US Bridges

I885N Rmp over I-885 & NC147

Good

Durham County, North Carolina · 0.1 Mi. N. JCT Nc 147 · Structure no. 000000000630601

Built
2015
10 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
916 ft
6 main spans
Daily traffic
65,700
2021 count
Owner
State
State Highway Agency

About this bridge

I885N Rmp over I-885 & NC147 is a steel continuous stringer/multi-beam or girder carrying I885N Rmp over I-885 & NC147 in Durham County, North Carolina. It was built in 2015, so it is 10 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 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 65,700 vehicles a day, roughly 16% of them trucks, projected to reach 116,100 by 2040. The structure is 916 ft (279.2 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI885N Rmp
CrossesI-885 & NC147
Location0.1 Mi. N. JCT Nc 147
RouteInterstate 885
Coordinates35.96596, -78.86564
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.9 US tons
Inventory rating51.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6 (+2 approach)
Design loadHL 93
Structure length916 ft (279.2 m)
Longest span175 ft (53.3 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65,700 (2021)
Projected traffic116,100 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I885N Rmp over I-885 & NC147 built?

It was built in 2015, making it 10 years old in 2025.

What condition is I885N Rmp over I-885 & NC147 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 April 2023.

How much traffic does I885N Rmp over I-885 & NC147 carry?

About 65,700 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is I885N Rmp over I-885 & NC147?

The structure is 916 ft (279.2 m) long with a longest span of 175 ft (53.3 m) and a deck 41 ft wide.

Who owns I885N Rmp over I-885 & NC147?

It is owned by the State Highway Agency.