US Bridges

I485 Outer Loop over SR3445

Fair

Mecklenburg County, North Carolina · 0.7 Mi. N. Jct. NC16 · Structure no. 000000001190744

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
163 ft
3 main spans
Daily traffic
32,750
2020 count
Owner
State
State Highway Agency

About this bridge

I485 Outer Loop over SR3445 is a steel continuous stringer/multi-beam or girder carrying I485 Outer Loop over SR3445 in Mecklenburg County, North Carolina. It was built in 1997, 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 32,750 vehicles a day, roughly 16% of them trucks, projected to reach 65,500 by 2040. The structure is 163 ft (49.6 m) long and 67 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI485 Outer Loop
CrossesSR3445
Location0.7 Mi. N. Jct. NC16
RouteInterstate 485
CountyMecklenburg County
StateNorth Carolina
Coordinates35.06268, -80.75711
Functional classUrban Principal Arterial - Interstate

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 inspectionMarch 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 rating82.9 US tons
Inventory rating49.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length163 ft (49.6 m)
Longest span66 ft (20.1 m)
Deck width67 ft (20.4 m)
Roadway width63 ft (19.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,750 (2020)
Projected traffic65,500 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 I485 Outer Loop over SR3445 built?

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

What condition is I485 Outer 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 March 2023.

How much traffic does I485 Outer Loop over SR3445 carry?

About 32,750 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I485 Outer Loop over SR3445?

The structure is 163 ft (49.6 m) long with a longest span of 66 ft (20.1 m) and a deck 67 ft wide.

Who owns I485 Outer Loop over SR3445?

It is owned by the State Highway Agency.