US Bridges

SR2309 over Alamance Creek

Fair

Alamance County, North Carolina · 0.7 Mi. S. Jct. SR2317 · Structure no. 000000000010109

Built
1965
60 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
256 ft
6 main spans
Daily traffic
3,700
2017 count
Owner
State
State Highway Agency

About this bridge

SR2309 over Alamance Creek is a prestressed concrete stringer/multi-beam or girder carrying SR2309 over Alamance Creek in Alamance County, North Carolina. It was built in 1965, so it is 60 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 3,700 vehicles a day, roughly 7% of them trucks, projected to reach 7,400 by 2040. The structure is 256 ft (78 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR2309
CrossesAlamance Creek
Location0.7 Mi. S. Jct. SR2317
RouteState Highway 2309
CountyAlamance County
StateNorth Carolina
Coordinates36.01701, -79.41371
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length256 ft (78 m)
Longest span49 ft (14.9 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2017)
Projected traffic7,400 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 SR2309 over Alamance Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is SR2309 over Alamance Creek 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 January 2025.

How much traffic does SR2309 over Alamance Creek carry?

About 3,700 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is SR2309 over Alamance Creek?

The structure is 256 ft (78 m) long with a longest span of 49 ft (14.9 m) and a deck 28 ft wide.

Who owns SR2309 over Alamance Creek?

It is owned by the State Highway Agency.