US Bridges

SR1143 over Yadkin River

Fair

Wilkes County, North Carolina · .1 MI.S.JCT.SR1144 · Structure no. 000000001930093

Built
1968
57 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
221 ft
4 main spans
Daily traffic
4,300
2015 count
Owner
State
State Highway Agency

About this bridge

SR1143 over Yadkin River is a prestressed concrete stringer/multi-beam or girder carrying SR1143 over Yadkin River in Wilkes County, North Carolina. It was built in 1968, so it is 57 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 4,300 vehicles a day, roughly 6% of them trucks, projected to reach 8,600 by 2040. The structure is 221 ft (67.3 m) long and 32 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesSR1143
CrossesYadkin River
Location.1 MI.S.JCT.SR1144
RouteState Highway 1143
CountyWilkes County
StateNorth Carolina
Coordinates36.13638, -81.21842
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
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 rating76.9 US tons
Inventory rating39.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length221 ft (67.3 m)
Longest span53 ft (16.1 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2015)
Projected traffic8,600 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 SR1143 over Yadkin River built?

It was built in 1968, making it 57 years old in 2025.

What condition is SR1143 over Yadkin River 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 November 2024.

How much traffic does SR1143 over Yadkin River carry?

About 4,300 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is SR1143 over Yadkin River?

The structure is 221 ft (67.3 m) long with a longest span of 53 ft (16.1 m) and a deck 32 ft wide.

Who owns SR1143 over Yadkin River?

It is owned by the State Highway Agency.