US Bridges

SR1143 over I40

Fair

Davie County, North Carolina · 100 Ft. S. Jct. SR1175 · Structure no. 000000000590026

Built
1968
57 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
300 ft
4 main spans
Daily traffic
670
2022 count
Owner
State
State Highway Agency

About this bridge

SR1143 over I40 is a steel stringer/multi-beam or girder carrying SR1143 over I40 in Davie 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 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 670 vehicles a day, roughly 6% of them trucks, projected to reach 1,340 by 2040. The structure is 300 ft (91.4 m) long and 36 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesSR1143
CrossesI40
Location100 Ft. S. Jct. SR1175
RouteState Highway 1143
Coordinates35.88597, -80.67059
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length300 ft (91.4 m)
Longest span87 ft (26.5 m)
Deck width36 ft (10.9 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2022)
Projected traffic1,340 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1143 over I40 built?

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

What condition is SR1143 over I40 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 I40 carry?

About 670 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1143 over I40?

The structure is 300 ft (91.4 m) long with a longest span of 87 ft (26.5 m) and a deck 36 ft wide.

Who owns SR1143 over I40?

It is owned by the State Highway Agency.