US Bridges

I85 Sbl over Seaboard Coastline RR

Good

Mecklenburg County, North Carolina · 0.6 Mi. S. Jct. NC16 · Structure no. 000000001190204

Built
1996
29 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
140 ft
3 main spans
Daily traffic
54,000
2020 count
Owner
State
State Highway Agency

About this bridge

I85 Sbl over Seaboard Coastline RR is a steel stringer/multi-beam or girder carrying I85 Sbl over Seaboard Coastline RR in Mecklenburg County, North Carolina. It was built in 1996, so it is 29 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 54,000 vehicles a day, roughly 16% of them trucks, projected to reach 108,000 by 2040. The structure is 140 ft (42.6 m) long and 82 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI85 Sbl
CrossesSeaboard Coastline RR
Location0.6 Mi. S. Jct. NC16
RouteInterstate 85
Coordinates35.2576, -80.88544
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.9 US tons
Inventory rating38.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length140 ft (42.6 m)
Longest span57 ft (17.3 m)
Deck width82 ft (25.1 m)
Roadway width79 ft (24 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,000 (2020)
Projected traffic108,000 by 2040
Trucks16%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 I85 Sbl over Seaboard Coastline RR built?

It was built in 1996, making it 29 years old in 2025.

What condition is I85 Sbl over Seaboard Coastline RR 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 June 2024.

How much traffic does I85 Sbl over Seaboard Coastline RR carry?

About 54,000 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I85 Sbl over Seaboard Coastline RR?

The structure is 140 ft (42.6 m) long with a longest span of 57 ft (17.3 m) and a deck 82 ft wide.

Who owns I85 Sbl over Seaboard Coastline RR?

It is owned by the State Highway Agency.