US Bridges

Rs 408 18 over Trib. Little Osage River

GoodPosted for load

Linn County, Kansas · 2.5W of Prescott · Structure no. 000000000540029

Built
1954
71 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
272
2006 count
Owner
County
County Highway Agency

About this bridge

Rs 408 18 over Trib. Little Osage River is a concrete culvert carrying Rs 408 18 over Trib. Little Osage River in Linn County, Kansas. It was built in 1954, so it is 71 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 272 vehicles a day, roughly 10% of them trucks, projected to reach 300 by 2044. The structure is 29 ft (8.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRs 408 18
CrossesTrib. Little Osage River
Location2.5W of Prescott
RouteCounty Highway 408
StateKansas
Coordinates38.06636, -94.74256
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 inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating21.2 US tons
Inventory rating12 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length29 ft (8.7 m)
Longest span14 ft (4.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic272 (2006)
Projected traffic300 by 2044
Trucks10%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 408 18 over Trib. Little Osage River built?

It was built in 1954, making it 71 years old in 2025.

What condition is Rs 408 18 over Trib. Little Osage River 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 March 2024.

How much traffic does Rs 408 18 over Trib. Little Osage River carry?

About 272 vehicles per day (2006 count), of which roughly 10% are trucks.

How long is Rs 408 18 over Trib. Little Osage River?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.2 m) and a deck 26 ft wide.

Who owns Rs 408 18 over Trib. Little Osage River?

It is owned by the County Highway Agency.