US Bridges

SB-I480 over I-480 Ramp 40

Good

Douglas County, Nebraska · Grover ST Intrchg · Structure no. S480 00019L

Built
1988
37 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
115 ft
1 main span
Daily traffic
117,005
2018 count
Owner
State
State Highway Agency

About this bridge

SB-I480 over I-480 Ramp 40 is a steel stringer/multi-beam or girder carrying SB-I480 over I-480 Ramp 40 in Douglas County, Nebraska. It was built in 1988, so it is 37 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 117,005 vehicles a day, roughly 5% of them trucks, projected to reach 152,107 by 2038. The structure is 115 ft (35.1 m) long and 53 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesSB-I480
CrossesI-480 Ramp 40
LocationGrover ST Intrchg
RouteInterstate 480
CountyDouglas County
StateNebraska
Coordinates41.2288, -95.9554
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
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 rating45.2 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span112 ft (34.1 m)
Deck width53 ft (16.3 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117,005 (2018)
Projected traffic152,107 by 2038
Trucks5%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SB-I480 over I-480 Ramp 40 built?

It was built in 1988, making it 37 years old in 2025.

What condition is SB-I480 over I-480 Ramp 40 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does SB-I480 over I-480 Ramp 40 carry?

About 117,005 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is SB-I480 over I-480 Ramp 40?

The structure is 115 ft (35.1 m) long with a longest span of 112 ft (34.1 m) and a deck 53 ft wide.

Who owns SB-I480 over I-480 Ramp 40?

It is owned by the State Highway Agency.