US Bridges

WB-I480 over 15th Thru 12th

Fair

Douglas County, Nebraska · In Omaha · Structure no. S480 00345L

Built
1970
55 years old, rebuilt 1998
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
1,490 ft
12 main spans
Daily traffic
36,195
2018 count
Owner
State
State Highway Agency

About this bridge

WB-I480 over 15th Thru 12th is a steel continuous box beam or girders - multiple carrying WB-I480 over 15th Thru 12th in Douglas County, Nebraska. It was built in 1970 and reconstructed in 1998, so it is 55 years old, older than the Nebraska average of 47.1 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 36,195 vehicles a day, roughly 5% of them trucks, projected to reach 36,195 by 2038. The structure is 1,490 ft (454.2 m) long and 46 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesWB-I480
Crosses15th Thru 12th
LocationIn Omaha
RouteInterstate 480
CountyDouglas County
StateNebraska
Coordinates41.2631, -95.9342
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating58.4 US tons
Inventory rating34.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length1,490 ft (454.2 m)
Longest span135 ft (41.1 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,195 (2018)
Projected traffic36,195 by 2038
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed12.4 mi (20 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was WB-I480 over 15th Thru 12th built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1998.

What condition is WB-I480 over 15th Thru 12th 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 March 2023.

How much traffic does WB-I480 over 15th Thru 12th carry?

About 36,195 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is WB-I480 over 15th Thru 12th?

The structure is 1,490 ft (454.2 m) long with a longest span of 135 ft (41.1 m) and a deck 46 ft wide.

Who owns WB-I480 over 15th Thru 12th?

It is owned by the State Highway Agency.