US Bridges

175th Ave over Owl Creek

PoorClosed to traffic

Otoe County, Nebraska · 1.5E Unadilla · Structure no. C006602535

Built
1935
90 years old, rebuilt 1989
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
2 main spans
Daily traffic
10
2003 count
Owner
County
County Highway Agency

About this bridge

175th Ave over Owl Creek is a steel stringer/multi-beam or girder carrying 175th Ave over Owl Creek in Otoe County, Nebraska. It was built in 1935 and reconstructed in 1989, so it is 90 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 10 vehicles a day, projected to reach 13 by 2033. The structure is 70 ft (21.3 m) long and 16 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Location

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Carries175th Ave
CrossesOwl Creek
Location1.5E Unadilla
RouteCounty Highway 25
CountyOtoe County
StateNebraska
Coordinates40.681, -96.235
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; extensive scour has occurred
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry8: Equal to present desirable criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span39 ft (11.9 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2003)
Projected traffic13 by 2033
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 175th Ave over Owl Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1989.

What condition is 175th Ave over Owl Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does 175th Ave over Owl Creek carry?

About 10 vehicles per day (2003 count).

How long is 175th Ave over Owl Creek?

The structure is 70 ft (21.3 m) long with a longest span of 39 ft (11.9 m) and a deck 16 ft wide.

Who owns 175th Ave over Owl Creek?

It is owned by the County Highway Agency.