US Bridges

Ridge Road over I440 US1

Fair

Wake County, North Carolina · 0.1 Mi.E.Jct. US70 · Structure no. 000000001830252

Built
1960
65 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
339 ft
5 main spans
Daily traffic
2,600
2022 count
Owner
State
State Highway Agency

About this bridge

Ridge Road over I440 US1 is a steel stringer/multi-beam or girder carrying Ridge Road over I440 US1 in Wake County, North Carolina. It was built in 1960, so it is 65 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 2,600 vehicles a day, roughly 7% of them trucks, projected to reach 5,200 by 2040. The structure is 339 ft (103.3 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRidge Road
CrossesI440 US1
Location0.1 Mi.E.Jct. US70
RouteCity Street 0
CountyWake County
StateNorth Carolina
Coordinates35.83394, -78.67303
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating50.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length339 ft (103.3 m)
Longest span82 ft (24.9 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2022)
Projected traffic5,200 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ridge Road over I440 US1 built?

It was built in 1960, making it 65 years old in 2025.

What condition is Ridge Road over I440 US1 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 August 2024.

How much traffic does Ridge Road over I440 US1 carry?

About 2,600 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Ridge Road over I440 US1?

The structure is 339 ft (103.3 m) long with a longest span of 82 ft (24.9 m) and a deck 33 ft wide.

Who owns Ridge Road over I440 US1?

It is owned by the State Highway Agency.