US Bridges

SR1147 over Swearing Creek

Fair

Davidson County, North Carolina · 0.2 Mi. N. Jct. SR1221 · Structure no. 000000000570406

Built
1984
41 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
168 ft
4 main spans
Daily traffic
13,000
2018 count
Owner
State
State Highway Agency

About this bridge

SR1147 over Swearing Creek is a prestressed concrete slab carrying SR1147 over Swearing Creek in Davidson County, North Carolina. It was built in 1984, so it is 41 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 13,000 vehicles a day, roughly 6% of them trucks, projected to reach 26,000 by 2040. The structure is 168 ft (51.2 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1147
CrossesSwearing Creek
Location0.2 Mi. N. Jct. SR1221
RouteState Highway 1147
CountyDavidson County
StateNorth Carolina
Coordinates35.79964, -80.30046
Functional classUrban Minor Arterial

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 inspectionMarch 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.9 US tons
Inventory rating49.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20 + Mod
Structure length168 ft (51.2 m)
Longest span40 ft (12.1 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2018)
Projected traffic26,000 by 2040
Trucks6%
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 SR1147 over Swearing Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR1147 over Swearing 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 March 2023.

How much traffic does SR1147 over Swearing Creek carry?

About 13,000 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is SR1147 over Swearing Creek?

The structure is 168 ft (51.2 m) long with a longest span of 40 ft (12.1 m) and a deck 39 ft wide.

Who owns SR1147 over Swearing Creek?

It is owned by the State Highway Agency.