US Bridges

SR1231 over Swearing Creek

Good

Davidson County, North Carolina · 0.1 Mi. E. Jct. SR1204 · Structure no. 000000000570077

Built
1990
35 years old
Condition
Good
inspected March 2023
Type
Slab
Prestressed Concrete
Length
92 ft
2 main spans
Daily traffic
700
2018 count
Owner
State
State Highway Agency

About this bridge

SR1231 over Swearing Creek is a prestressed concrete slab carrying SR1231 over Swearing Creek in Davidson County, North Carolina. It was built in 1990, so it is 35 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 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 700 vehicles a day, roughly 7% of them trucks, projected to reach 1,400 by 2040. The structure is 92 ft (28 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR1231
CrossesSwearing Creek
Location0.1 Mi. E. Jct. SR1204
RouteState Highway 1231
Coordinates35.83678, -80.29044
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating99 US tons
Inventory rating61.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length92 ft (28 m)
Longest span44 ft (13.4 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2018)
Projected traffic1,400 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 SR1231 over Swearing Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is SR1231 over Swearing 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 March 2023.

How much traffic does SR1231 over Swearing Creek carry?

About 700 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is SR1231 over Swearing Creek?

The structure is 92 ft (28 m) long with a longest span of 44 ft (13.4 m) and a deck 30 ft wide.

Who owns SR1231 over Swearing Creek?

It is owned by the State Highway Agency.