US Bridges

Rs 412 30.8-F.0 over Stream

GoodPosted for load

Lyon County, Kansas · 5.0W 2.0N of Olpe · Structure no. 000000000560080

Built
1950
75 years old
Condition
Good
inspected February 2023
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
193
2007 count
Owner
County
County Highway Agency

About this bridge

Rs 412 30.8-F.0 over Stream is a steel culvert carrying Rs 412 30.8-F.0 over Stream in Lyon County, Kansas. It was built in 1950, so it is 75 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 193 vehicles a day, roughly 10% of them trucks, projected to reach 215 by 2043. The structure is 21 ft (6.3 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesRs 412 30.8-F.0
CrossesStream
Location5.0W 2.0N of Olpe
RouteCounty Highway 412
CountyLyon County
StateKansas
Coordinates38.29253, -96.26331
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15.2 US tons
Inventory rating9.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckOther
Main spans1
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span20 ft (6.2 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic193 (2007)
Projected traffic215 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Rs 412 30.8-F.0 over Stream built?

It was built in 1950, making it 75 years old in 2025.

What condition is Rs 412 30.8-F.0 over 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 February 2023.

How much traffic does Rs 412 30.8-F.0 over Stream carry?

About 193 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is Rs 412 30.8-F.0 over Stream?

The structure is 21 ft (6.3 m) long with a longest span of 20 ft (6.2 m) and a deck 24 ft wide.

Who owns Rs 412 30.8-F.0 over Stream?

It is owned by the County Highway Agency.