US Bridges

SR3440 over I485

Fair

Mecklenburg County, North Carolina · 1.9 Mi. E. Jct. NC16 · Structure no. 000000001190740

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
336 ft
4 main spans
Daily traffic
17,500
2018 count
Owner
State
State Highway Agency

About this bridge

SR3440 over I485 is a steel continuous stringer/multi-beam or girder carrying SR3440 over I485 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 17,500 vehicles a day, roughly 6% of them trucks, projected to reach 35,000 by 2040. The structure is 336 ft (102.4 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR3440
CrossesI485
Location1.9 Mi. E. Jct. NC16
RouteState Highway 3440
CountyMecklenburg County
StateNorth Carolina
Coordinates35.07638, -80.74402
Functional classUrban Minor Arterial

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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.9 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length336 ft (102.4 m)
Longest span108 ft (32.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,500 (2018)
Projected traffic35,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR3440 over I485 built?

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

What condition is SR3440 over I485 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 SR3440 over I485 carry?

About 17,500 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is SR3440 over I485?

The structure is 336 ft (102.4 m) long with a longest span of 108 ft (32.9 m) and a deck 33 ft wide.

Who owns SR3440 over I485?

It is owned by the State Highway Agency.