US Bridges

SW 70 Ave over S. Fork Ninnescah River

Good

Pratt County, Kansas · 2.0E 2.3S of Cullison · Structure no. 000760653006304

Built
2004
21 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
43 ft
3 main spans
Daily traffic
50
2021 count
Owner
County
County Highway Agency

About this bridge

SW 70 Ave over S. Fork Ninnescah River is a concrete culvert carrying SW 70 Ave over S. Fork Ninnescah River in Pratt County, Kansas. It was built in 2004, so it is 21 years old, younger 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.

It carries about 50 vehicles a day, roughly 5% of them trucks, projected to reach 60 by 2046. The structure is 43 ft (13.2 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSW 70 Ave
CrossesS. Fork Ninnescah River
Location2.0E 2.3S of Cullison
RouteCounty Highway 0
StateKansas
Coordinates37.59626, -98.86766
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating96.5 US tons
Inventory rating57.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length43 ft (13.2 m)
Longest span14 ft (4.2 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2021)
Projected traffic60 by 2046
Trucks5%
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 SW 70 Ave over S. Fork Ninnescah River built?

It was built in 2004, making it 21 years old in 2025.

What condition is SW 70 Ave over S. Fork Ninnescah River 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 November 2024.

How much traffic does SW 70 Ave over S. Fork Ninnescah River carry?

About 50 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SW 70 Ave over S. Fork Ninnescah River?

The structure is 43 ft (13.2 m) long with a longest span of 14 ft (4.2 m) and a deck 35 ft wide.

Who owns SW 70 Ave over S. Fork Ninnescah River?

It is owned by the County Highway Agency.