US Bridges

NC3 over Three Mile Branch

Fair

Cabarrus County, North Carolina · 1.2 Mi. S. Jct. NC73 · Structure no. 000000000250350

Built
1996
29 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete Continuous
Length
92 ft
3 main spans
Daily traffic
13,000
2018 count
Owner
State
State Highway Agency

About this bridge

NC3 over Three Mile Branch is a concrete continuous culvert carrying NC3 over Three Mile Branch in Cabarrus County, North Carolina. It was built in 1996, so it is 29 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 13,000 vehicles a day, roughly 6% of them trucks, projected to reach 26,000 by 2040. The structure is 92 ft (28 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNC3
CrossesThree Mile Branch
Location1.2 Mi. S. Jct. NC73
RouteState Highway 3
Coordinates35.399, -80.55172
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating48 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length92 ft (28 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 traffic13,000 (2018)
Projected traffic26,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC3 over Three Mile Branch built?

It was built in 1996, making it 29 years old in 2025.

What condition is NC3 over Three Mile Branch 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 February 2025.

How much traffic does NC3 over Three Mile Branch carry?

About 13,000 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is NC3 over Three Mile Branch?

The structure is 92 ft (28 m) long with a longest span of 12 ft (3.6 m).

Who owns NC3 over Three Mile Branch?

It is owned by the State Highway Agency.