US Bridges

Rs 1250 18.0-12.8 over Unnamed Stream

GoodPosted for load

Osage County, Kansas · 1.0W of Lyndon · Structure no. 000000000700302

Built
1970
55 years old
Condition
Good
inspected December 2024
Type
Culvert
Steel
Length
28 ft
1 main span
Daily traffic
101
2019 count
Owner
County
County Highway Agency

About this bridge

Rs 1250 18.0-12.8 over Unnamed Stream is a steel culvert carrying Rs 1250 18.0-12.8 over Unnamed Stream in Osage County, Kansas. It was built in 1970, so it is 55 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 101 vehicles a day, roughly 7% of them trucks, projected to reach 121 by 2044. The structure is 28 ft (8.5 m) long and 64 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesRs 1250 18.0-12.8
CrossesUnnamed Stream
Location1.0W of Lyndon
RouteCounty Highway 1250
CountyOsage County
StateKansas
Coordinates38.60875, -95.71615
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating65.3 US tons
Inventory rating39.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width64 ft (19.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic101 (2019)
Projected traffic121 by 2044
Trucks7%
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 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 18.0-12.8 over Unnamed Stream built?

It was built in 1970, making it 55 years old in 2025.

What condition is Rs 1250 18.0-12.8 over Unnamed Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Rs 1250 18.0-12.8 over Unnamed Stream carry?

About 101 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Rs 1250 18.0-12.8 over Unnamed Stream?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 64 ft wide.

Who owns Rs 1250 18.0-12.8 over Unnamed Stream?

It is owned by the County Highway Agency.