US Bridges

Rs 405 9 over Trib. to Big Sugar Creek

Good

Linn County, Kansas · 4.5W 1.5S of Boicourt · Structure no. 000000000540042

Built
1974
51 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
164
2006 count
Owner
County
County Highway Agency

About this bridge

Rs 405 9 over Trib. to Big Sugar Creek is a concrete culvert carrying Rs 405 9 over Trib. to Big Sugar Creek in Linn County, Kansas. It was built in 1974, so it is 51 years old, younger 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.

It carries about 164 vehicles a day, roughly 10% of them trucks, projected to reach 175 by 2044. The structure is 20 ft (6.2 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesRs 405 9
CrossesTrib. to Big Sugar Creek
Location4.5W 1.5S of Boicourt
RouteCounty Highway 405
StateKansas
Coordinates38.25352, -94.79878
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 statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span10 ft (3 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 traffic164 (2006)
Projected traffic175 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 405 9 over Trib. to Big Sugar Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Rs 405 9 over Trib. to Big Sugar Creek 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 405 9 over Trib. to Big Sugar Creek carry?

About 164 vehicles per day (2006 count), of which roughly 10% are trucks.

How long is Rs 405 9 over Trib. to Big Sugar Creek?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Rs 405 9 over Trib. to Big Sugar Creek?

It is owned by the County Highway Agency.