US Bridges

I77 Sblhov over I85

Good

Mecklenburg County, North Carolina · 2.7 Mi. N. Jct. NC16 · Structure no. 000000001191037

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
247 ft
2 main spans
Daily traffic
12,000
2018 count
Owner
State
State Highway Agency

About this bridge

I77 Sblhov over I85 is a prestressed concrete stringer/multi-beam or girder carrying I77 Sblhov over I85 in Mecklenburg County, North Carolina. It was built in 2019, so it is 6 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 12,000 vehicles a day, roughly 16% of them trucks, projected to reach 24,000 by 2040. The structure is 247 ft (75.2 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI77 Sblhov
CrossesI85
Location2.7 Mi. N. Jct. NC16
RouteInterstate 77
Coordinates35.27301, -80.84417
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 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 rating89.9 US tons
Inventory rating60 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length247 ft (75.2 m)
Longest span124 ft (37.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2018)
Projected traffic24,000 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 I77 Sblhov over I85 built?

It was built in 2019, making it 6 years old in 2025.

What condition is I77 Sblhov over I85 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 November 2023.

How much traffic does I77 Sblhov over I85 carry?

About 12,000 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is I77 Sblhov over I85?

The structure is 247 ft (75.2 m) long with a longest span of 124 ft (37.7 m) and a deck 43 ft wide.

Who owns I77 Sblhov over I85?

It is owned by the State Highway Agency.