US Bridges

Rs 1158 over Trib. Little Osage River

FairPosted for load

Bourbon County, Kansas · 9.5N of Bronson · Structure no. 000000000060290

Built
1967
58 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
149
2006 count
Owner
County
County Highway Agency

About this bridge

Rs 1158 over Trib. Little Osage River is a concrete culvert carrying Rs 1158 over Trib. Little Osage River in Bourbon County, Kansas. It was built in 1967, so it is 58 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 149 vehicles a day, roughly 10% of them trucks, projected to reach 149 by 2042. The structure is 29 ft (8.8 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRs 1158
CrossesTrib. Little Osage River
Location9.5N of Bronson
RouteCounty Highway 1158
CountyBourbon County
StateKansas
Coordinates38.03056, -95.07301
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.8 US tons
Inventory rating12 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length29 ft (8.8 m)
Longest span14 ft (4.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic149 (2006)
Projected traffic149 by 2042
Trucks10%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$77,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 1158 over Trib. Little Osage River built?

It was built in 1967, making it 58 years old in 2025.

What condition is Rs 1158 over Trib. Little Osage 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 2024.

How much traffic does Rs 1158 over Trib. Little Osage River carry?

About 149 vehicles per day (2006 count), of which roughly 10% are trucks.

How long is Rs 1158 over Trib. Little Osage River?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.2 m) and a deck 32 ft wide.

Who owns Rs 1158 over Trib. Little Osage River?

It is owned by the County Highway Agency.