US Bridges

NW 70 Ave over Dry Walnut Creek

Good

Barton County, Kansas · 2.0S 1.0W of Heizer · Structure no. 000050651005222

Built
2009
16 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
40
2018 count
Owner
County
County Highway Agency

About this bridge

NW 70 Ave over Dry Walnut Creek is a concrete continuous slab carrying NW 70 Ave over Dry Walnut Creek in Barton County, Kansas. It was built in 2009, so it is 16 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 40 vehicles a day, roughly 5% of them trucks, projected to reach 50 by 2043. The structure is 82 ft (25.1 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNW 70 Ave
CrossesDry Walnut Creek
Location2.0S 1.0W of Heizer
RouteCounty Highway 0
CountyBarton County
StateKansas
Coordinates38.38764, -98.90366
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length82 ft (25.1 m)
Longest span32 ft (9.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2018)
Projected traffic50 by 2043
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 NW 70 Ave over Dry Walnut Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is NW 70 Ave over Dry Walnut 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 March 2023.

How much traffic does NW 70 Ave over Dry Walnut Creek carry?

About 40 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is NW 70 Ave over Dry Walnut Creek?

The structure is 82 ft (25.1 m) long with a longest span of 32 ft (9.7 m) and a deck 30 ft wide.

Who owns NW 70 Ave over Dry Walnut Creek?

It is owned by the County Highway Agency.