US Bridges

2400 St. 12.0-N.8 over Stream

Fair

Allen County, Kansas · 6.0S 1.0W of LA Harpe · Structure no. 000011039005968

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

About this bridge

2400 St. 12.0-N.8 over Stream is a concrete continuous slab carrying 2400 St. 12.0-N.8 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 83 ft (25.3 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries2400 St. 12.0-N.8
CrossesStream
Location6.0S 1.0W of LA Harpe
RouteCounty Highway 0
CountyAllen County
StateKansas
Coordinates37.83713, -95.31758
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length83 ft (25.3 m)
Longest span11 ft (3.3 m)
Deck width24 ft (7.3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$62,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 2400 St. 12.0-N.8 over Stream built?

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

What condition is 2400 St. 12.0-N.8 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 2400 St. 12.0-N.8 over Stream carry?

About 30 vehicles per day (2006 count).

How long is 2400 St. 12.0-N.8 over Stream?

The structure is 83 ft (25.3 m) long with a longest span of 11 ft (3.3 m) and a deck 24 ft wide.

Who owns 2400 St. 12.0-N.8 over Stream?

It is owned by the County Highway Agency.