US Bridges

S. 20th Ave. over Trib. North Fork Solomon

FairPosted for load

Osborne County, Kansas · 0.6N 1.0E of Downs · Structure no. 000710693003668

Built
1968
57 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
134 ft
4 main spans
Daily traffic
15
2020 count
Owner
County
County Highway Agency

About this bridge

S. 20th Ave. over Trib. North Fork Solomon is a wood or timber stringer/multi-beam or girder carrying S. 20th Ave. over Trib. North Fork Solomon in Osborne County, Kansas. It was built in 1968, so it is 57 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 6 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 134 ft (40.8 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesS. 20th Ave.
CrossesTrib. North Fork Solomon
Location0.6N 1.0E of Downs
RouteCounty Highway 0
CountyOsborne County
StateKansas
Coordinates39.51285, -98.52562
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
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 rating29.2 US tons
Inventory rating19.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 20
Structure length134 ft (40.8 m)
Longest span33 ft (10 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 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 closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$450,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S. 20th Ave. over Trib. North Fork Solomon built?

It was built in 1968, making it 57 years old in 2025.

What condition is S. 20th Ave. over Trib. North Fork Solomon 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 Trib. North Fork Solomon carry?

About 15 vehicles per day (2020 count).

How long is S. 20th Ave. over Trib. North Fork Solomon?

The structure is 134 ft (40.8 m) long with a longest span of 33 ft (10 m) and a deck 24 ft wide.

Who owns S. 20th Ave. over Trib. North Fork Solomon?

It is owned by the County Highway Agency.