US Bridges

SR1427 over I40

Fair

Wake County, North Carolina · 0.4 Mi.N. of SR1009 · Structure no. 000000001830271

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
288 ft
4 main spans
Daily traffic
100
1990 count
Owner
State
State Highway Agency

About this bridge

SR1427 over I40 is a steel stringer/multi-beam or girder carrying SR1427 over I40 in Wake County, North Carolina. It was built in 1980, so it is 45 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 100 vehicles a day, roughly 7% of them trucks, projected to reach 200 by 2040. The structure is 288 ft (87.7 m) long and 47 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSR1427
CrossesI40
Location0.4 Mi.N. of SR1009
RouteState Highway 1427
CountyWake County
StateNorth Carolina
Coordinates35.75221, -78.70661
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length288 ft (87.7 m)
Longest span119 ft (36.2 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (1990)
Projected traffic200 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5.6 mi (9 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 SR1427 over I40 built?

It was built in 1980, making it 45 years old in 2025.

What condition is SR1427 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 December 2024.

How much traffic does SR1427 over I40 carry?

About 100 vehicles per day (1990 count), of which roughly 7% are trucks.

How long is SR1427 over I40?

The structure is 288 ft (87.7 m) long with a longest span of 119 ft (36.2 m) and a deck 47 ft wide.

Who owns SR1427 over I40?

It is owned by the State Highway Agency.