US Bridges

1950 9.8-O.3 over Stream

Fair

Allen County, Kansas · 4.3E 1.2N of Humboldt · Structure no. 000011033805983

Built
1940
85 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
24 ft
2 main spans
Daily traffic
50
2006 count
Owner
County
County Highway Agency

About this bridge

1950 9.8-O.3 over Stream is a concrete slab carrying 1950 9.8-O.3 over Stream in Allen 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 5 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 2044. The structure is 24 ft (7.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries1950 9.8-O.3
CrossesStream
Location4.3E 1.2N of Humboldt
RouteCounty Highway 0
CountyAllen County
StateKansas
Coordinates37.83012, -95.35787
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span11 ft (3.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2006)
Projected traffic50 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$66,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1950 9.8-O.3 over Stream built?

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

What condition is 1950 9.8-O.3 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 June 2024.

How much traffic does 1950 9.8-O.3 over Stream carry?

About 50 vehicles per day (2006 count).

How long is 1950 9.8-O.3 over Stream?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.3 m) and a deck 26 ft wide.

Who owns 1950 9.8-O.3 over Stream?

It is owned by the County Highway Agency.