US Bridges

I440 over Walnut Creek

Fair

Wake County, North Carolina · 0.2 MI.E.JCT.SR2544 · Structure no. 000000001830013

Built
1977
48 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
68 ft
5 main spans
Daily traffic
55,000
2019 count
Owner
State
State Highway Agency

About this bridge

I440 over Walnut Creek is a concrete continuous culvert carrying I440 over Walnut Creek in Wake County, North Carolina. It was built in 1977, so it is 48 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 55,000 vehicles a day, roughly 16% of them trucks, projected to reach 110,000 by 2040. The structure is 68 ft (20.7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI440
CrossesWalnut Creek
Location0.2 MI.E.JCT.SR2544
RouteInterstate 440
CountyWake County
StateNorth Carolina
Coordinates35.75662, -78.57781
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20 + Mod
Structure length68 ft (20.7 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,000 (2019)
Projected traffic110,000 by 2040
Trucks16%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I440 over Walnut Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is I440 over Walnut Creek 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 January 2025.

How much traffic does I440 over Walnut Creek carry?

About 55,000 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is I440 over Walnut Creek?

The structure is 68 ft (20.7 m) long with a longest span of 13 ft (3.9 m).

Who owns I440 over Walnut Creek?

It is owned by the State Highway Agency.