US Bridges

S. 80th Ave. over Twin Creek

FairPosted for load

Osborne County, Kansas · 7.9S 3.0E of Osborne · Structure no. 000710681003929

Built
1910
115 years old
Condition
Fair
inspected December 2024
Type
Truss - Thru
Steel
Length
61 ft
1 main span
Daily traffic
20
2020 count
Owner
County
County Highway Agency

About this bridge

S. 80th Ave. over Twin Creek is a steel truss - thru carrying S. 80th Ave. over Twin Creek in Osborne County, Kansas. It was built in 1910, so it is 115 years old, older than the Kansas average of 52.8 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 20 vehicles a day, projected to reach 25 by 2044. The structure is 61 ft (18.6 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesS. 80th Ave.
CrossesTwin Creek
Location7.9S 3.0E of Osborne
RouteCounty Highway 0
CountyOsborne County
StateKansas
Coordinates39.32394, -98.63903
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating18 US tons
Inventory rating10.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 10
Structure length61 ft (18.6 m)
Longest span60 ft (18.2 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deck33 ft (10 m)

Traffic and service

Average daily traffic20 (2020)
Projected traffic25 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$300,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S. 80th Ave. over Twin Creek built?

It was built in 1910, making it 115 years old in 2025.

What condition is S. 80th Ave. over Twin 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 December 2024.

How much traffic does S. 80th Ave. over Twin Creek carry?

About 20 vehicles per day (2020 count).

How long is S. 80th Ave. over Twin Creek?

The structure is 61 ft (18.6 m) long with a longest span of 60 ft (18.2 m) and a deck 16 ft wide.

Who owns S. 80th Ave. over Twin Creek?

It is owned by the County Highway Agency.