US Bridges

Road Z over Amazon Ditch

FairPosted for load

Kearny County, Kansas · 0.3W 3.9N of Deerfield · Structure no. 000470405005720

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
150
2018 count
Owner
County
County Highway Agency

About this bridge

Road Z over Amazon Ditch is a steel stringer/multi-beam or girder carrying Road Z over Amazon Ditch in Kearny County, Kansas. It was built in 1975, so it is 50 years old, younger 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2041. The structure is 46 ft (14 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRoad Z
CrossesAmazon Ditch
Location0.3W 3.9N of Deerfield
RouteCounty Highway 0
CountyKearny County
StateKansas
Coordinates38.03228, -101.13967
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating11.5 US tons
Inventory rating6.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width30 ft (9 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic150 (2018)
Projected traffic150 by 2041
Trucks10%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$490,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Road Z over Amazon Ditch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Road Z over Amazon Ditch 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 November 2023.

How much traffic does Road Z over Amazon Ditch carry?

About 150 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is Road Z over Amazon Ditch?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 30 ft wide.

Who owns Road Z over Amazon Ditch?

It is owned by the County Highway Agency.