US Bridges

US29 over I485

Good

Mecklenburg County, North Carolina · 0.2 Mi. S. Jct. SR2469 · Structure no. 000000001190942

Built
1999
26 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
294 ft
2 main spans
Daily traffic
46,500
2022 count
Owner
State
State Highway Agency

About this bridge

US29 over I485 is a steel continuous stringer/multi-beam or girder carrying US29 over I485 in Mecklenburg County, North Carolina. It was built in 1999, so it is 26 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 46,500 vehicles a day, roughly 12% of them trucks, projected to reach 93,000 by 2040. The structure is 294 ft (89.6 m) long and 105 ft wide.

CarriesUS29
CrossesI485
Location0.2 Mi. S. Jct. SR2469
RouteU.S. Route 29
Coordinates35.33324, -80.72131
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 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 rating99 US tons
Inventory rating61 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length294 ft (89.6 m)
Longest span163 ft (49.6 m)
Deck width105 ft (32 m)
Roadway width102 ft (31 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,500 (2022)
Projected traffic93,000 by 2040
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 US29 over I485 built?

It was built in 1999, making it 26 years old in 2025.

What condition is US29 over I485 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 October 2023.

How much traffic does US29 over I485 carry?

About 46,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US29 over I485?

The structure is 294 ft (89.6 m) long with a longest span of 163 ft (49.6 m) and a deck 105 ft wide.

Who owns US29 over I485?

It is owned by the State Highway Agency.