US Bridges

RD 240 943.6-506.0 over Stillman Creek

GoodPosted for load

Lyon County, Kansas · 4.5E of Americus · Structure no. 000000000560190

Built
1926
99 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
58
2007 count
Owner
County
County Highway Agency

About this bridge

RD 240 943.6-506.0 over Stillman Creek is a concrete culvert carrying RD 240 943.6-506.0 over Stillman Creek in Lyon County, Kansas. It was built in 1926, so it is 99 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 58 vehicles a day, projected to reach 65 by 2043. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesRD 240 943.6-506.0
CrossesStillman Creek
Location4.5E of Americus
RouteCounty Highway 413
CountyLyon County
StateKansas
Coordinates38.50661, -96.17922
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (6.9 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic58 (2007)
Projected traffic65 by 2043
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 240 943.6-506.0 over Stillman Creek built?

It was built in 1926, making it 99 years old in 2025.

What condition is RD 240 943.6-506.0 over Stillman 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 February 2023.

How much traffic does RD 240 943.6-506.0 over Stillman Creek carry?

About 58 vehicles per day (2007 count).

How long is RD 240 943.6-506.0 over Stillman Creek?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3.1 m).

Who owns RD 240 943.6-506.0 over Stillman Creek?

It is owned by the County Highway Agency.