US Bridges

Local RD 12.7-S.0 over Stream

Fair

Allen County, Kansas · 2.5S 6.7E of Humboldt · Structure no. 000011039706060

Built
1940
85 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
24 ft
2 main spans
Daily traffic
30
2006 count
Owner
County
County Highway Agency

About this bridge

Local RD 12.7-S.0 over Stream is a concrete slab carrying Local RD 12.7-S.0 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 30 vehicles a day, projected to reach 30 by 2044. The structure is 24 ft (7.3 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLocal RD 12.7-S.0
CrossesStream
Location2.5S 6.7E of Humboldt
RouteCounty Highway 0
CountyAllen County
StateKansas
Coordinates37.77654, -95.31192
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
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 inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment6: Equal to present minimum criteria
Operating rating15 US tons
Inventory rating15 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span10 ft (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 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 Local RD 12.7-S.0 over Stream built?

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

What condition is Local RD 12.7-S.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 Local RD 12.7-S.0 over Stream carry?

About 30 vehicles per day (2006 count).

How long is Local RD 12.7-S.0 over Stream?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Local RD 12.7-S.0 over Stream?

It is owned by the County Highway Agency.