US Bridges

P-21.2 Minor over Antelope Creek

GoodPosted for load

Ottawa County, Kansas · 3.0W 1.3S of Bennington · Structure no. 000720787004362

Built
1960
65 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
40
2001 count
Owner
County
County Highway Agency

About this bridge

P-21.2 Minor over Antelope Creek is a steel stringer/multi-beam or girder carrying P-21.2 Minor over Antelope Creek in Ottawa County, Kansas. It was built in 1960, so it is 65 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 40 vehicles a day, projected to reach 40 by 2044. The structure is 46 ft (14 m) long and 21 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesP-21.2 Minor
CrossesAntelope Creek
Location3.0W 1.3S of Bennington
RouteCounty Highway 7217
StateKansas
Coordinates39.01285, -97.64949
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.6 US tons
Inventory rating12.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span44 ft (13.3 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 traffic40 (2001)
Projected traffic40 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$175,000
NavigationNo navigation control on waterway

Frequently asked questions

When was P-21.2 Minor over Antelope Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is P-21.2 Minor over Antelope Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does P-21.2 Minor over Antelope Creek carry?

About 40 vehicles per day (2001 count).

How long is P-21.2 Minor over Antelope Creek?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.3 m) and a deck 21 ft wide.

Who owns P-21.2 Minor over Antelope Creek?

It is owned by the County Highway Agency.