US Bridges

SW 70th ST over Whitewater River

Good

Butler County, Kansas · 2.0W 3.0N of Augusta · Structure no. 000000000081270

Built
2001
24 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
364 ft
4 main spans
Daily traffic
2,835
2021 count
Owner
County
County Highway Agency

About this bridge

SW 70th ST over Whitewater River is a steel continuous stringer/multi-beam or girder carrying SW 70th ST over Whitewater River in Butler County, Kansas. It was built in 2001, so it is 24 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 2,835 vehicles a day, roughly 5% of them trucks, projected to reach 3,319 by 2045. The structure is 364 ft (110.9 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSW 70th ST
CrossesWhitewater River
Location2.0W 3.0N of Augusta
RouteCounty Highway 0
CountyButler County
StateKansas
Coordinates37.72358, -97.01196
Functional classRural Major 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length364 ft (110.9 m)
Longest span108 ft (33 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,835 (2021)
Projected traffic3,319 by 2045
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 70th ST over Whitewater River built?

It was built in 2001, making it 24 years old in 2025.

What condition is SW 70th ST over Whitewater 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 February 2025.

How much traffic does SW 70th ST over Whitewater River carry?

About 2,835 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SW 70th ST over Whitewater River?

The structure is 364 ft (110.9 m) long with a longest span of 108 ft (33 m) and a deck 32 ft wide.

Who owns SW 70th ST over Whitewater River?

It is owned by the County Highway Agency.