US Bridges

S. 50th Ave. over Center Twin Creek

FairPosted for load

Osborne County, Kansas · 5.0S 6.0E of Osborne · Structure no. 000710687003880

Built
1920
105 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
15
2020 count
Owner
County
County Highway Agency

About this bridge

S. 50th Ave. over Center Twin Creek is a concrete slab carrying S. 50th Ave. over Center Twin Creek in Osborne County, Kansas. It was built in 1920, so it is 105 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 15 vehicles a day, projected to reach 20 by 2043. The structure is 22 ft (6.7 m) long and 20 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesS. 50th Ave.
CrossesCenter Twin Creek
Location5.0S 6.0E of Osborne
RouteCounty Highway 0
CountyOsborne County
StateKansas
Coordinates39.36499, -98.58318
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6 US tons
Inventory rating6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length22 ft (6.7 m)
Longest span20 ft (6 m)
Deck width20 ft (6 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic15 (2020)
Projected traffic20 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$46,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S. 50th Ave. over Center Twin Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is S. 50th Ave. over Center 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 May 2023.

How much traffic does S. 50th Ave. over Center Twin Creek carry?

About 15 vehicles per day (2020 count).

How long is S. 50th Ave. over Center Twin Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6 m) and a deck 20 ft wide.

Who owns S. 50th Ave. over Center Twin Creek?

It is owned by the County Highway Agency.