US Bridges

I85 Sbl over SR1641

Good

Mecklenburg County, North Carolina · 1.12 Mi. S. Jct. US521 · Structure no. 000000001190115

Built
1995
30 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
317 ft
3 main spans
Daily traffic
48,000
2020 count
Owner
State
State Highway Agency

About this bridge

I85 Sbl over SR1641 is a steel stringer/multi-beam or girder carrying I85 Sbl over SR1641 in Mecklenburg 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 48,000 vehicles a day, roughly 16% of them trucks, projected to reach 96,000 by 2040. The structure is 317 ft (96.6 m) long and 72 ft wide.

CarriesI85 Sbl
CrossesSR1641
Location1.12 Mi. S. Jct. US521
RouteInterstate 85
Coordinates35.24135, -80.93871
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating88 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length317 ft (96.6 m)
Longest span194 ft (59.1 m)
Deck width72 ft (22 m)
Roadway width69 ft (21.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,000 (2020)
Projected traffic96,000 by 2040
Trucks16%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 SR1641 built?

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

What condition is I85 Sbl over SR1641 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 May 2023.

How much traffic does I85 Sbl over SR1641 carry?

About 48,000 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I85 Sbl over SR1641?

The structure is 317 ft (96.6 m) long with a longest span of 194 ft (59.1 m) and a deck 72 ft wide.

Who owns I85 Sbl over SR1641?

It is owned by the State Highway Agency.