US Bridges

SR2420 over Rocky River

Fair

Mecklenburg County, North Carolina · 0.4 Mi. E. Jct. SR2418 · Structure no. 000000001190092

Built
1984
41 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
48 ft
3 main spans
Daily traffic
4,000
2018 count
Owner
State
State Highway Agency

About this bridge

SR2420 over Rocky River is a concrete continuous culvert carrying SR2420 over Rocky River in Mecklenburg County, North Carolina. It was built in 1984, so it is 41 years old, older 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 5 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 4,000 vehicles a day, roughly 6% of them trucks, projected to reach 8,000 by 2040. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR2420
CrossesRocky River
Location0.4 Mi. E. Jct. SR2418
RouteState Highway 2420
CountyMecklenburg County
StateNorth Carolina
Coordinates35.47499, -80.77952
Functional classRural Minor Collector

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating65.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length48 ft (14.6 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2018)
Projected traffic8,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 SR2420 over Rocky River built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR2420 over Rocky River 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 April 2023.

How much traffic does SR2420 over Rocky River carry?

About 4,000 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is SR2420 over Rocky River?

The structure is 48 ft (14.6 m) long with a longest span of 15 ft (4.5 m).

Who owns SR2420 over Rocky River?

It is owned by the State Highway Agency.