US Bridges

I80 over South Platte River Trib

Good

Keith County, Nebraska · 1W Ogallala Interchg · Structure no. S080 12540

Built
1968
57 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
15,280
2018 count
Owner
State
State Highway Agency

About this bridge

I80 over South Platte River Trib is a concrete culvert carrying I80 over South Platte River Trib in Keith County, Nebraska. It was built in 1968, so it is 57 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,280 vehicles a day, roughly 45% of them trucks, projected to reach 18,336 by 2038. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 12.4 mi (20 km).

CarriesI80
CrossesSouth Platte River Trib
Location1W Ogallala Interchg
RouteInterstate 80
Coordinates41.1136, -101.7394
Functional classRural 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,280 (2018)
Projected traffic18,336 by 2038
Trucks45%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I80 over South Platte River Trib built?

It was built in 1968, making it 57 years old in 2025.

What condition is I80 over South Platte River Trib 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 October 2023.

How much traffic does I80 over South Platte River Trib carry?

About 15,280 vehicles per day (2018 count), of which roughly 45% are trucks.

How long is I80 over South Platte River Trib?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m).

Who owns I80 over South Platte River Trib?

It is owned by the State Highway Agency.