US Bridges

Minor Col 15.6-F.0 over Stream

Fair

Allen County, Kansas · 3.5N 2.5E of LA Harpe · Structure no. 000011045605800

Built
1930
95 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
36 ft
3 main spans
Daily traffic
30
2006 count
Owner
County
County Highway Agency

About this bridge

Minor Col 15.6-F.0 over Stream is a concrete continuous slab carrying Minor Col 15.6-F.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 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 30 vehicles a day, projected to reach 30 by 2044. The structure is 36 ft (11 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMinor Col 15.6-F.0
CrossesStream
Location3.5N 2.5E of LA Harpe
RouteCounty Highway 114
CountyAllen County
StateKansas
Coordinates37.96528, -95.25115
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.8 US tons
Inventory rating21.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length36 ft (11 m)
Longest span10 ft (3 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2006)
Projected traffic30 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Minor Col 15.6-F.0 over Stream built?

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

What condition is Minor Col 15.6-F.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 2024.

How much traffic does Minor Col 15.6-F.0 over Stream carry?

About 30 vehicles per day (2006 count).

How long is Minor Col 15.6-F.0 over Stream?

The structure is 36 ft (11 m) long with a longest span of 10 ft (3 m) and a deck 21 ft wide.

Who owns Minor Col 15.6-F.0 over Stream?

It is owned by the County Highway Agency.