US Bridges

Rs 1250 18.0-13.5 over Unnamed Stream

FairPosted for load

Osage County, Kansas · 0.5W of Lyndon · Structure no. 000000000700304

Built
1965
60 years old
Condition
Fair
inspected December 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
115
2019 count
Owner
County
County Highway Agency

About this bridge

Rs 1250 18.0-13.5 over Unnamed Stream is a steel culvert carrying Rs 1250 18.0-13.5 over Unnamed Stream in Osage County, Kansas. It was built in 1965, so it is 60 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 115 vehicles a day, roughly 7% of them trucks, projected to reach 138 by 2044. The structure is 22 ft (6.7 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRs 1250 18.0-13.5
CrossesUnnamed Stream
Location0.5W of Lyndon
RouteCounty Highway 1250
CountyOsage County
StateKansas
Coordinates38.60879, -95.70247
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.4 US tons
Inventory rating25.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span22 ft (6.6 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic115 (2019)
Projected traffic138 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Rs 1250 18.0-13.5 over Unnamed Stream built?

It was built in 1965, making it 60 years old in 2025.

What condition is Rs 1250 18.0-13.5 over Unnamed Stream 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 Rs 1250 18.0-13.5 over Unnamed Stream carry?

About 115 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Rs 1250 18.0-13.5 over Unnamed Stream?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.6 m) and a deck 36 ft wide.

Who owns Rs 1250 18.0-13.5 over Unnamed Stream?

It is owned by the County Highway Agency.