US Bridges

I-540S.COLL over I40

Good

Durham County, North Carolina · 0.96 MI E JCT SR1973 · Structure no. 000000000630341

Built
1995
30 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
274 ft
2 main spans
Daily traffic
6,500
2021 count
Owner
State
State Highway Agency

About this bridge

I-540S.COLL over I40 is a steel continuous stringer/multi-beam or girder carrying I-540S.COLL over I40 in Durham County, North Carolina. It was built in 1995, so it is 30 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 6,500 vehicles a day, roughly 16% of them trucks, projected to reach 13,000 by 2040. The structure is 274 ft (83.5 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-540S.COLL
CrossesI40
Location0.96 MI E JCT SR1973
RouteInterstate 540
CountyDurham County
StateNorth Carolina
Coordinates35.87304, -78.83118
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.9 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length274 ft (83.5 m)
Longest span135 ft (41.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic6,500 (2021)
Projected traffic13,000 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 I-540S.COLL over I40 built?

It was built in 1995, making it 30 years old in 2025.

What condition is I-540S.COLL over I40 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 August 2023.

How much traffic does I-540S.COLL over I40 carry?

About 6,500 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is I-540S.COLL over I40?

The structure is 274 ft (83.5 m) long with a longest span of 135 ft (41.1 m) and a deck 43 ft wide.

Who owns I-540S.COLL over I40?

It is owned by the State Highway Agency.