US Bridges

I80 over Cozad Canal

Good

Dawson County, Nebraska · 3W Darr Intrchg · Structure no. S080 22866

Built
1964
61 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
17,745
2018 count
Owner
State
State Highway Agency

About this bridge

I80 over Cozad Canal is a concrete culvert carrying I80 over Cozad Canal in Dawson County, Nebraska. It was built in 1964, 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 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 17,745 vehicles a day, roughly 40% of them trucks, projected to reach 19,520 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
CrossesCozad Canal
Location3W Darr Intrchg
RouteInterstate 80
Coordinates40.8012, -99.8825
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 adequacy8: Equal to present desirable criteria
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 spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,745 (2018)
Projected traffic19,520 by 2038
Trucks40%
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 Cozad Canal built?

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

What condition is I80 over Cozad Canal 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 Cozad Canal carry?

About 17,745 vehicles per day (2018 count), of which roughly 40% are trucks.

How long is I80 over Cozad Canal?

The structure is 27 ft (8.2 m) long with a longest span of 10 ft (3 m).

Who owns I80 over Cozad Canal?

It is owned by the State Highway Agency.