US Bridges

SR1311 over Green River

Fair

Polk County, North Carolina · .4 MI.S.JCT.SR1315 · Structure no. 000000001490035

Built
1962
63 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
199 ft
4 main spans
Daily traffic
1,200
2021 count
Owner
State
State Highway Agency

About this bridge

SR1311 over Green River is a steel stringer/multi-beam or girder carrying SR1311 over Green River in Polk County, North Carolina. It was built in 1962, so it is 63 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 1,200 vehicles a day, roughly 6% of them trucks, projected to reach 2,400 by 2040. The structure is 199 ft (60.6 m) long and 33 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

Open in Google Maps
CarriesSR1311
CrossesGreen River
Location.4 MI.S.JCT.SR1315
RouteState Highway 1311
CountyPolk County
StateNorth Carolina
Coordinates35.33805, -82.11134
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.9 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length199 ft (60.6 m)
Longest span48 ft (14.6 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2021)
Projected traffic2,400 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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 SR1311 over Green River built?

It was built in 1962, making it 63 years old in 2025.

What condition is SR1311 over Green 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 2023.

How much traffic does SR1311 over Green River carry?

About 1,200 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1311 over Green River?

The structure is 199 ft (60.6 m) long with a longest span of 48 ft (14.6 m) and a deck 33 ft wide.

Who owns SR1311 over Green River?

It is owned by the State Highway Agency.