US Bridges

P-21.8 Minor over Creek

Fair

Ottawa County, Kansas · 3.0W 1.8S Bennington · Structure no. 000720787004368

Built
1945
80 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
40
2001 count
Owner
County
County Highway Agency

About this bridge

P-21.8 Minor over Creek is a concrete culvert carrying P-21.8 Minor over Creek in Ottawa County, Kansas. It was built in 1945, so it is 80 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 40 vehicles a day, projected to reach 50 by 2044. The structure is 21 ft (6.3 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesP-21.8 Minor
CrossesCreek
Location3.0W 1.8S Bennington
RouteCounty Highway 7217
StateKansas
Coordinates39.0049, -97.64946
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2001)
Projected traffic50 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 P-21.8 Minor over Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is P-21.8 Minor over Creek 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 P-21.8 Minor over Creek carry?

About 40 vehicles per day (2001 count).

How long is P-21.8 Minor over Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns P-21.8 Minor over Creek?

It is owned by the County Highway Agency.