US Bridges

I485 Inner Loop over SR3445

Fair

Mecklenburg County, North Carolina · 0.7 Mi. N. Jct. NC16 · Structure no. 000000001190743

Built
1997
28 years old, rebuilt 2022
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
149 ft
3 main spans
Daily traffic
37,500
2022 count
Owner
State
State Highway Agency

About this bridge

I485 Inner Loop over SR3445 is a steel continuous stringer/multi-beam or girder carrying I485 Inner Loop over SR3445 in Mecklenburg County, North Carolina. It was built in 1997 and reconstructed in 2022, so it is 28 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 37,500 vehicles a day, roughly 12% of them trucks, projected to reach 75,000 by 2040. The structure is 149 ft (45.4 m) long and 66 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI485 Inner Loop
CrossesSR3445
Location0.7 Mi. N. Jct. NC16
RouteInterstate 485
CountyMecklenburg County
StateNorth Carolina
Coordinates35.06285, -80.75737
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
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 rating91.9 US tons
Inventory rating54.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length149 ft (45.4 m)
Longest span66 ft (20.1 m)
Deck width66 ft (20.2 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,500 (2022)
Projected traffic75,000 by 2040
Trucks12%
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 I485 Inner Loop over SR3445 built?

It was built in 1997, making it 28 years old in 2025. It was reconstructed in 2022.

What condition is I485 Inner Loop over SR3445 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does I485 Inner Loop over SR3445 carry?

About 37,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is I485 Inner Loop over SR3445?

The structure is 149 ft (45.4 m) long with a longest span of 66 ft (20.1 m) and a deck 66 ft wide.

Who owns I485 Inner Loop over SR3445?

It is owned by the State Highway Agency.