US Bridges

RD 290 939.4-496.0 over Stream

FairPosted for load

Lyon County, Kansas · 5.0S 2.5W of Allen · Structure no. 000000000560400

Built
1923
102 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
46
2007 count
Owner
County
County Highway Agency

About this bridge

RD 290 939.4-496.0 over Stream is a concrete culvert carrying RD 290 939.4-496.0 over Stream in Lyon County, Kansas. It was built in 1923, so it is 102 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 46 vehicles a day, projected to reach 50 by 2043. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRD 290 939.4-496.0
CrossesStream
Location5.0S 2.5W of Allen
RouteCounty Highway 821
CountyLyon County
StateKansas
Coordinates38.57925, -96.2195
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 inspectionFebruary 2023
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15 US tons
Inventory rating15 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.7 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic46 (2007)
Projected traffic50 by 2043
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$58,000
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 290 939.4-496.0 over Stream built?

It was built in 1923, making it 102 years old in 2025.

What condition is RD 290 939.4-496.0 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 RD 290 939.4-496.0 over Stream carry?

About 46 vehicles per day (2007 count).

How long is RD 290 939.4-496.0 over Stream?

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

Who owns RD 290 939.4-496.0 over Stream?

It is owned by the County Highway Agency.