US Bridges

IRR/US75/US77 over Omaha Creek Tributary

Fair

Thurston County, Nebraska · 1N Winnebago · Structure no. S075 17062

Built
1938
87 years old, rebuilt 1974
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
8,480
2018 count
Owner
State
State Highway Agency

About this bridge

IRR/US75/US77 over Omaha Creek Tributary is a concrete slab carrying IRR/US75/US77 over Omaha Creek Tributary in Thurston County, Nebraska. It was built in 1938 and reconstructed in 1974, so it is 87 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 8,480 vehicles a day, roughly 12% of them trucks, projected to reach 11,872 by 2038. The structure is 60 ft (18.3 m) long and 47 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesIRR/US75/US77
CrossesOmaha Creek Tributary
Location1N Winnebago
RouteU.S. Route 75
CountyThurston County
StateNebraska
Coordinates42.2552, -96.4747
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating33.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,480 (2018)
Projected traffic11,872 by 2038
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemYes

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 IRR/US75/US77 over Omaha Creek Tributary built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1974.

What condition is IRR/US75/US77 over Omaha Creek Tributary 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 September 2024.

How much traffic does IRR/US75/US77 over Omaha Creek Tributary carry?

About 8,480 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is IRR/US75/US77 over Omaha Creek Tributary?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 47 ft wide.

Who owns IRR/US75/US77 over Omaha Creek Tributary?

It is owned by the State Highway Agency.