US Bridges

SR1309 over Alarka Creek

Good

Swain County, North Carolina · .4 MI.W.JCT.SR1303 · Structure no. 000000001730106

Built
2008
17 years old
Condition
Good
inspected September 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
100 ft
1 main span
Daily traffic
730
2015 count
Owner
State
State Highway Agency

About this bridge

SR1309 over Alarka Creek is a steel stringer/multi-beam or girder carrying SR1309 over Alarka Creek in Swain County, North Carolina. It was built in 2008, so it is 17 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 730 vehicles a day, roughly 6% of them trucks, projected to reach 1,460 by 2040. The structure is 100 ft (30.4 m) long and 31 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesSR1309
CrossesAlarka Creek
Location.4 MI.W.JCT.SR1303
RouteState Highway 1309
CountySwain County
StateNorth Carolina
Coordinates35.38967, -83.50795
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating88 US tons
Inventory rating51.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length100 ft (30.4 m)
Longest span98 ft (29.8 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic730 (2015)
Projected traffic1,460 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 SR1309 over Alarka Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is SR1309 over Alarka Creek 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 2021.

How much traffic does SR1309 over Alarka Creek carry?

About 730 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is SR1309 over Alarka Creek?

The structure is 100 ft (30.4 m) long with a longest span of 98 ft (29.8 m) and a deck 31 ft wide.

Who owns SR1309 over Alarka Creek?

It is owned by the State Highway Agency.