US Bridges

I485 Nbl Ramp over Tiger Branch

Good

Mecklenburg County, North Carolina · 0.2 Mi. S. Jct. US29 · Structure no. 000000001190836

Built
2006
19 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
12,500
2022 count
Owner
State
State Highway Agency

About this bridge

I485 Nbl Ramp over Tiger Branch is a concrete continuous culvert carrying I485 Nbl Ramp over Tiger Branch in Mecklenburg County, North Carolina. It was built in 2006, so it is 19 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 12,500 vehicles a day, roughly 16% of them trucks, projected to reach 25,000 by 2040. The structure is 25 ft (7.6 m) long.

CarriesI485 Nbl Ramp
CrossesTiger Branch
Location0.2 Mi. S. Jct. US29
RouteInterstate 485
Coordinates35.23651, -80.96819
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2022)
Projected traffic25,000 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I485 Nbl Ramp over Tiger Branch built?

It was built in 2006, making it 19 years old in 2025.

What condition is I485 Nbl Ramp over Tiger Branch 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 January 2024.

How much traffic does I485 Nbl Ramp over Tiger Branch carry?

About 12,500 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I485 Nbl Ramp over Tiger Branch?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.6 m).

Who owns I485 Nbl Ramp over Tiger Branch?

It is owned by the State Highway Agency.