US Bridges

I40 Wbl over SR1484

Fair

Catawba County, North Carolina · 0.4 Mi. E. Jct. SR1007 · Structure no. 000000000350172

Built
1975
50 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
156 ft
3 main spans
Daily traffic
25,000
2020 count
Owner
State
State Highway Agency

About this bridge

I40 Wbl over SR1484 is a steel stringer/multi-beam or girder carrying I40 Wbl over SR1484 in Catawba County, North Carolina. It was built in 1975, so it is 50 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 25,000 vehicles a day, roughly 16% of them trucks, projected to reach 50,000 by 2040. The structure is 156 ft (47.5 m) long and 51 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI40 Wbl
CrossesSR1484
Location0.4 Mi. E. Jct. SR1007
RouteInterstate 40
CountyCatawba County
StateNorth Carolina
Coordinates35.71648, -81.22338
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.9 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length156 ft (47.5 m)
Longest span71 ft (21.6 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,000 (2020)
Projected traffic50,000 by 2040
Trucks16%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 Wbl over SR1484 built?

It was built in 1975, making it 50 years old in 2025.

What condition is I40 Wbl over SR1484 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 April 2023.

How much traffic does I40 Wbl over SR1484 carry?

About 25,000 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I40 Wbl over SR1484?

The structure is 156 ft (47.5 m) long with a longest span of 71 ft (21.6 m) and a deck 51 ft wide.

Who owns I40 Wbl over SR1484?

It is owned by the State Highway Agency.