US Bridges

SR2321 over Buffalo Creek

Fair

Wake County, North Carolina · 0.7 MI W JCT SR 2320 · Structure no. 000000001830173

Built
2002
23 years old
Condition
Fair
inspected August 2023
Type
Slab
Prestressed Concrete
Length
87 ft
2 main spans
Daily traffic
800
2015 count
Owner
State
State Highway Agency

About this bridge

SR2321 over Buffalo Creek is a prestressed concrete slab carrying SR2321 over Buffalo Creek in Wake County, North Carolina. It was built in 2002, so it is 23 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 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 800 vehicles a day, roughly 7% of them trucks, projected to reach 1,600 by 2040. The structure is 87 ft (26.5 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR2321
CrossesBuffalo Creek
Location0.7 MI W JCT SR 2320
RouteState Highway 2321
CountyWake County
StateNorth Carolina
Coordinates35.85126, -78.42467
Functional classUrban Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length87 ft (26.5 m)
Longest span59 ft (17.9 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2015)
Projected traffic1,600 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR2321 over Buffalo Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is SR2321 over Buffalo 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 August 2023.

How much traffic does SR2321 over Buffalo Creek carry?

About 800 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is SR2321 over Buffalo Creek?

The structure is 87 ft (26.5 m) long with a longest span of 59 ft (17.9 m) and a deck 30 ft wide.

Who owns SR2321 over Buffalo Creek?

It is owned by the State Highway Agency.