US Bridges

IRR/N94 over Cow Creek

FairPosted for load

Thurston County, Nebraska · 2SW Walthill · Structure no. S094 01122

Built
1958
67 years old, rebuilt 1986
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
3 main spans
Daily traffic
750
2018 count
Owner
State
State Highway Agency

About this bridge

IRR/N94 over Cow Creek is a steel continuous stringer/multi-beam or girder carrying IRR/N94 over Cow Creek in Thurston County, Nebraska. It was built in 1958 and reconstructed in 1986, so it is 67 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 750 vehicles a day, roughly 13% of them trucks, projected to reach 975 by 2038. The structure is 180 ft (54.9 m) long and 31 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesIRR/N94
CrossesCow Creek
Location2SW Walthill
RouteState Highway 94
CountyThurston County
StateNebraska
Coordinates42.1281, -96.5016
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating20.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length180 ft (54.9 m)
Longest span68 ft (20.7 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2018)
Projected traffic975 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

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/N94 over Cow Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1986.

What condition is IRR/N94 over Cow Creek 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/N94 over Cow Creek carry?

About 750 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is IRR/N94 over Cow Creek?

The structure is 180 ft (54.9 m) long with a longest span of 68 ft (20.7 m) and a deck 31 ft wide.

Who owns IRR/N94 over Cow Creek?

It is owned by the State Highway Agency.