US Bridges

M Ave./Rd. 390 over Stream

Fair

Lyon County, Kansas · 5.5N 5.0W of Bushong · Structure no. 000560925104760

Built
1940
85 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
50
2007 count
Owner
County
County Highway Agency

About this bridge

M Ave./Rd. 390 over Stream is a steel stringer/multi-beam or girder carrying M Ave./Rd. 390 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.

It carries about 50 vehicles a day, projected to reach 50 by 2043. The structure is 33 ft (10.1 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesM Ave./Rd. 390
CrossesStream
Location5.5N 5.0W of Bushong
RouteCounty Highway 5601
CountyLyon County
StateKansas
Coordinates38.72453, -96.35028
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating29.1 US tons
Inventory rating17.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length33 ft (10.1 m)
Longest span31 ft (9.3 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.4 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 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$61,000
NavigationNo navigation control on waterway

Frequently asked questions

When was M Ave./Rd. 390 over Stream built?

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

What condition is M Ave./Rd. 390 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 M Ave./Rd. 390 over Stream carry?

About 50 vehicles per day (2007 count).

How long is M Ave./Rd. 390 over Stream?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.3 m) and a deck 20 ft wide.

Who owns M Ave./Rd. 390 over Stream?

It is owned by the County Highway Agency.