US Bridges

Minor Col 9.0-N.0 over Stream

Fair

Allen County, Kansas · 3.5E 2.5N of Humboldt · Structure no. 000011033005960

Built
1930
95 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
37 ft
4 main spans
Daily traffic
60
2006 count
Owner
County
County Highway Agency

About this bridge

Minor Col 9.0-N.0 over Stream is a concrete continuous slab carrying Minor Col 9.0-N.0 over Stream in Allen County, Kansas. It was built in 1930, so it is 95 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 60 vehicles a day, projected to reach 60 by 2044. The structure is 37 ft (11.3 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMinor Col 9.0-N.0
CrossesStream
Location3.5E 2.5N of Humboldt
RouteCounty Highway 110
CountyAllen County
StateKansas
Coordinates37.84937, -95.37178
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span9 ft (2.6 m)
Deck width36 ft (11.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic60 (2006)
Projected traffic60 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$103,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Minor Col 9.0-N.0 over Stream built?

It was built in 1930, making it 95 years old in 2025.

What condition is Minor Col 9.0-N.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 June 2024.

How much traffic does Minor Col 9.0-N.0 over Stream carry?

About 60 vehicles per day (2006 count).

How long is Minor Col 9.0-N.0 over Stream?

The structure is 37 ft (11.3 m) long with a longest span of 9 ft (2.6 m) and a deck 36 ft wide.

Who owns Minor Col 9.0-N.0 over Stream?

It is owned by the County Highway Agency.