US Bridges

RD 310 929.4-492.0 over Stream

FairPosted for load

Lyon County, Kansas · 2.5S 2.5W of Bushong · Structure no. 000560929404920

Built
1940
85 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
3 main spans
Daily traffic
10
2007 count
Owner
County
County Highway Agency

About this bridge

RD 310 929.4-492.0 over Stream is a steel stringer/multi-beam or girder carrying RD 310 929.4-492.0 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 10 vehicles a day, projected to reach 10 by 2043. The structure is 66 ft (20.2 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRD 310 929.4-492.0
CrossesStream
Location2.5S 2.5W of Bushong
RouteCounty Highway 0
CountyLyon County
StateKansas
Coordinates38.60861, -96.30833
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.8 US tons
Inventory rating28.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans3
Design loadHS 20
Structure length66 ft (20.2 m)
Longest span24 ft (7.3 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2007)
Projected traffic10 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$116,000
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 310 929.4-492.0 over Stream built?

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

What condition is RD 310 929.4-492.0 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 310 929.4-492.0 over Stream carry?

About 10 vehicles per day (2007 count).

How long is RD 310 929.4-492.0 over Stream?

The structure is 66 ft (20.2 m) long with a longest span of 24 ft (7.3 m) and a deck 20 ft wide.

Who owns RD 310 929.4-492.0 over Stream?

It is owned by the County Highway Agency.