US Bridges

I80 over Tri-County Canal

Fair

Lincoln County, Nebraska · 3E North Platte E Intrchg · Structure no. S080 18181R

Built
1964
61 years old, rebuilt 1989
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
302 ft
3 main spans
Daily traffic
17,730
2018 count
Owner
State
State Highway Agency

About this bridge

I80 over Tri-County Canal is a steel continuous stringer/multi-beam or girder carrying I80 over Tri-County Canal in Lincoln County, Nebraska. It was built in 1964 and reconstructed in 1989, so it is 61 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 17,730 vehicles a day, roughly 40% of them trucks, projected to reach 19,503 by 2038. The structure is 302 ft (92 m) long and 45 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesI80
CrossesTri-County Canal
Location3E North Platte E Intrchg
RouteInterstate 80
CountyLincoln County
StateNebraska
Coordinates41.0969, -100.6768
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating29.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length302 ft (92 m)
Longest span120 ft (36.6 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,730 (2018)
Projected traffic19,503 by 2038
Trucks40%
Lanes on structure2
Traffic directionOne-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 Tri-County Canal built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1989.

What condition is I80 over Tri-County Canal 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 December 2023.

How much traffic does I80 over Tri-County Canal carry?

About 17,730 vehicles per day (2018 count), of which roughly 40% are trucks.

How long is I80 over Tri-County Canal?

The structure is 302 ft (92 m) long with a longest span of 120 ft (36.6 m) and a deck 45 ft wide.

Who owns I80 over Tri-County Canal?

It is owned by the State Highway Agency.