US Bridges

400 St. 2.0-K.5 over Stream

Poor

Allen County, Kansas · 5.0W 2.5S of Iola · Structure no. 000011019005905

Built
1940
85 years old
Condition
Poor
inspected February 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
30
2006 count
Owner
County
County Highway Agency

About this bridge

400 St. 2.0-K.5 over Stream is a concrete culvert carrying 400 St. 2.0-K.5 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 30 vehicles a day, projected to reach 30 by 2044. The structure is 27 ft (8.2 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries400 St. 2.0-K.5
CrossesStream
Location5.0W 2.5S of Iola
RouteCounty Highway 0
CountyAllen County
StateKansas
Coordinates37.88485, -95.50075
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.8 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width22 ft (6.7 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$50,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 400 St. 2.0-K.5 over Stream built?

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

What condition is 400 St. 2.0-K.5 over Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does 400 St. 2.0-K.5 over Stream carry?

About 30 vehicles per day (2006 count).

How long is 400 St. 2.0-K.5 over Stream?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 22 ft wide.

Who owns 400 St. 2.0-K.5 over Stream?

It is owned by the County Highway Agency.