US Bridges

SR1312 over Rocky River

Good

Chatham County, North Carolina · 0.6 Mi. W. Jct. SR1355 · Structure no. 000000000370380

Built
1979
46 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
211 ft
3 main spans
Daily traffic
200
2022 count
Owner
State
State Highway Agency

About this bridge

SR1312 over Rocky River is a prestressed concrete stringer/multi-beam or girder carrying SR1312 over Rocky River in Chatham County, North Carolina. It was built in 1979, so it is 46 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 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 200 vehicles a day, roughly 6% of them trucks, projected to reach 400 by 2040. The structure is 211 ft (64.3 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSR1312
CrossesRocky River
Location0.6 Mi. W. Jct. SR1355
RouteState Highway 1212
Coordinates35.78075, -79.46138
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length211 ft (64.3 m)
Longest span69 ft (21 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic400 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SR1312 over Rocky River built?

It was built in 1979, making it 46 years old in 2025.

What condition is SR1312 over Rocky River 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 September 2024.

How much traffic does SR1312 over Rocky River carry?

About 200 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1312 over Rocky River?

The structure is 211 ft (64.3 m) long with a longest span of 69 ft (21 m) and a deck 31 ft wide.

Who owns SR1312 over Rocky River?

It is owned by the State Highway Agency.