US Bridges

S. 20th Ave. over South Fork Solomon River

FairPosted for load

Osborne County, Kansas · 0.3S 9.0E of Osborne · Structure no. 000710693003783

Built
1999
26 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
47 ft
2 main spans
Daily traffic
15
2020 count
Owner
County
County Highway Agency

About this bridge

S. 20th Ave. over South Fork Solomon River is a steel continuous stringer/multi-beam or girder carrying S. 20th Ave. over South Fork Solomon River in Osborne County, Kansas. It was built in 1999, so it is 26 years old, younger 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 47 ft (14.2 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesS. 20th Ave.
CrossesSouth Fork Solomon River
Location0.3S 9.0E of Osborne
RouteCounty Highway 0
CountyOsborne County
StateKansas
Coordinates39.43288, -98.52714
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating19.1 US tons
Inventory rating14.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans2
Design loadH 20
Structure length47 ft (14.2 m)
Longest span30 ft (9.1 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.2 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 closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S. 20th Ave. over South Fork Solomon River built?

It was built in 1999, making it 26 years old in 2025.

What condition is S. 20th Ave. over South Fork Solomon River 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. 20th Ave. over South Fork Solomon River carry?

About 15 vehicles per day (2020 count).

How long is S. 20th Ave. over South Fork Solomon River?

The structure is 47 ft (14.2 m) long with a longest span of 30 ft (9.1 m) and a deck 20 ft wide.

Who owns S. 20th Ave. over South Fork Solomon River?

It is owned by the County Highway Agency.