US Bridges

SR1139 over Rocky River

Fair

Cabarrus County, North Carolina · 1.1 Mi. W. Jct. SR1217 · Structure no. 000000000250179

Built
1961
64 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
331 ft
6 main spans
Daily traffic
7,400
2022 count
Owner
State
State Highway Agency

About this bridge

SR1139 over Rocky River is a prestressed concrete stringer/multi-beam or girder carrying SR1139 over Rocky River in Cabarrus County, North Carolina. It was built in 1961, so it is 64 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 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 7,400 vehicles a day, roughly 6% of them trucks, projected to reach 14,800 by 2040. The structure is 331 ft (100.8 m) long and 29 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesSR1139
CrossesRocky River
Location1.1 Mi. W. Jct. SR1217
RouteState Highway 1139
CountyCabarrus County
StateNorth Carolina
Coordinates35.31655, -80.59532
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length331 ft (100.8 m)
Longest span53 ft (16.1 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,400 (2022)
Projected traffic14,800 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1139 over Rocky River built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR1139 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 May 2024.

How much traffic does SR1139 over Rocky River carry?

About 7,400 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1139 over Rocky River?

The structure is 331 ft (100.8 m) long with a longest span of 53 ft (16.1 m) and a deck 29 ft wide.

Who owns SR1139 over Rocky River?

It is owned by the State Highway Agency.