US Bridges

SR3097N over I540

Good

Wake County, North Carolina · 0.7 MI.S.SR1644 · Structure no. 000000001830758

Built
1998
27 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
401 ft
3 main spans
Daily traffic
9,500
2017 count
Owner
State
State Highway Agency

About this bridge

SR3097N over I540 is a steel continuous stringer/multi-beam or girder carrying SR3097N over I540 in Wake County, North Carolina. It was built in 1998, so it is 27 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 9,500 vehicles a day, roughly 12% of them trucks, projected to reach 19,000 by 2040. The structure is 401 ft (122.2 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR3097N
CrossesI540
Location0.7 MI.S.SR1644
RouteState Highway 3097
Coordinates35.8919, -78.81369
Functional classUrban Other Principal Arterial

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 inspectionDecember 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 rating53.9 US tons
Inventory rating32 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length401 ft (122.2 m)
Longest span175 ft (53.3 m)
Deck width61 ft (18.6 m)
Roadway width58 ft (17.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (2017)
Projected traffic19,000 by 2040
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR3097N over I540 built?

It was built in 1998, making it 27 years old in 2025.

What condition is SR3097N over I540 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 December 2023.

How much traffic does SR3097N over I540 carry?

About 9,500 vehicles per day (2017 count), of which roughly 12% are trucks.

How long is SR3097N over I540?

The structure is 401 ft (122.2 m) long with a longest span of 175 ft (53.3 m) and a deck 61 ft wide.

Who owns SR3097N over I540?

It is owned by the State Highway Agency.