US Bridges

US601 over Rocky River

Fair

Cabarrus County, North Carolina · 0.4 Mi. N. Jct. SR1148 · Structure no. 000000000250060

Built
1971
54 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
385 ft
5 main spans
Daily traffic
6,600
2022 count
Owner
State
State Highway Agency

About this bridge

US601 over Rocky River is a steel stringer/multi-beam or girder carrying US601 over Rocky River in Cabarrus County, North Carolina. It was built in 1971, so it is 54 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 6,600 vehicles a day, roughly 8% of them trucks, projected to reach 13,200 by 2040. The structure is 385 ft (117.3 m) long and 42 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesUS601
CrossesRocky River
Location0.4 Mi. N. Jct. SR1148
RouteU.S. Route 601
CountyCabarrus County
StateNorth Carolina
Coordinates35.32433, -80.51539
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.9 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length385 ft (117.3 m)
Longest span75 ft (22.8 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2022)
Projected traffic13,200 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 US601 over Rocky River built?

It was built in 1971, making it 54 years old in 2025.

What condition is US601 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 July 2024.

How much traffic does US601 over Rocky River carry?

About 6,600 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is US601 over Rocky River?

The structure is 385 ft (117.3 m) long with a longest span of 75 ft (22.8 m) and a deck 42 ft wide.

Who owns US601 over Rocky River?

It is owned by the State Highway Agency.