US Bridges

NB-US75/WB-I80 over I80/BN&UP/I480/RMP 50

Good

Douglas County, Nebraska · Grover ST Intrchg #8 · Structure no. S080 45308

Built
1989
36 years old, rebuilt 1992
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,995 ft
14 main spans
Daily traffic
84,810
2018 count
Owner
State
State Highway Agency

About this bridge

NB-US75/WB-I80 over I80/BN&UP/I480/RMP 50 is a steel continuous stringer/multi-beam or girder carrying NB-US75/WB-I80 over I80/BN&UP/I480/RMP 50 in Douglas County, Nebraska. It was built in 1989 and reconstructed in 1992, so it is 36 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 84,810 vehicles a day, roughly 3% of them trucks, projected to reach 114,494 by 2038. The structure is 1,995 ft (608.1 m) long and 36 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesNB-US75/WB-I80
CrossesI80/BN&UP/I480/RMP 50
LocationGrover ST Intrchg #8
RouteU.S. Route 75
CountyDouglas County
StateNebraska
Coordinates41.2281, -95.9537
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.6 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadHS 20
Structure length1,995 ft (608.1 m)
Longest span175 ft (53.3 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84,810 (2018)
Projected traffic114,494 by 2038
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 NB-US75/WB-I80 over I80/BN&UP/I480/RMP 50 built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 1992.

What condition is NB-US75/WB-I80 over I80/BN&UP/I480/RMP 50 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 March 2024.

How much traffic does NB-US75/WB-I80 over I80/BN&UP/I480/RMP 50 carry?

About 84,810 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is NB-US75/WB-I80 over I80/BN&UP/I480/RMP 50?

The structure is 1,995 ft (608.1 m) long with a longest span of 175 ft (53.3 m) and a deck 36 ft wide.

Who owns NB-US75/WB-I80 over I80/BN&UP/I480/RMP 50?

It is owned by the State Highway Agency.