US Bridges

SR1148 over I40

Fair

Duplin County, North Carolina · 0.7 MI.N.SR1162 · Structure no. 000000000610440

Built
1988
37 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
202 ft
4 main spans
Daily traffic
790
2016 count
Owner
State
State Highway Agency

About this bridge

SR1148 over I40 is a prestressed concrete stringer/multi-beam or girder carrying SR1148 over I40 in Duplin County, North Carolina. It was built in 1988, so it is 37 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 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 790 vehicles a day, roughly 6% of them trucks, projected to reach 1,580 by 2040. The structure is 202 ft (61.5 m) long and 29 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1148
CrossesI40
Location0.7 MI.N.SR1162
RouteState Highway 1148
CountyDuplin County
StateNorth Carolina
Coordinates34.80963, -77.99126
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length202 ft (61.5 m)
Longest span62 ft (18.8 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic790 (2016)
Projected traffic1,580 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1148 over I40 built?

It was built in 1988, making it 37 years old in 2025.

What condition is SR1148 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 July 2023.

How much traffic does SR1148 over I40 carry?

About 790 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is SR1148 over I40?

The structure is 202 ft (61.5 m) long with a longest span of 62 ft (18.8 m) and a deck 29 ft wide.

Who owns SR1148 over I40?

It is owned by the State Highway Agency.