US Bridges

City Rd. 400 over Stream

FairPosted for load

Lyon County, Kansas · 5.5N 3.0W of Allen · Structure no. 000560937504740

Built
1940
85 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
50
2007 count
Owner
County
County Highway Agency

About this bridge

City Rd. 400 over Stream is a concrete culvert carrying City Rd. 400 over Stream in Lyon County, Kansas. It was built in 1940, so it is 85 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 50 vehicles a day, projected to reach 50 by 2043. The structure is 29 ft (8.7 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCity Rd. 400
CrossesStream
Location5.5N 3.0W of Allen
RouteCounty Highway 5615
CountyLyon County
StateKansas
Coordinates38.73889, -96.23392
Functional classRural Minor 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 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
Deck geometry6: 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 spans3
Design loadUnknown
Structure length29 ft (8.7 m)
Longest span9 ft (2.7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2007)
Projected traffic50 by 2043
Trucks0%
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 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 City Rd. 400 over Stream built?

It was built in 1940, making it 85 years old in 2025.

What condition is City Rd. 400 over Stream 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 February 2023.

How much traffic does City Rd. 400 over Stream carry?

About 50 vehicles per day (2007 count).

How long is City Rd. 400 over Stream?

The structure is 29 ft (8.7 m) long with a longest span of 9 ft (2.7 m) and a deck 27 ft wide.

Who owns City Rd. 400 over Stream?

It is owned by the County Highway Agency.