US Bridges

Local DD.6-18.4 over Stream

FairPosted for load

Chautauqua County, Kansas · 1.0S 1.0E of Niotaze · Structure no. 000100965607064

Built
1930
95 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
10
2016 count
Owner
County
County Highway Agency

About this bridge

Local DD.6-18.4 over Stream is a steel stringer/multi-beam or girder carrying Local DD.6-18.4 over Stream in Chautauqua County, Kansas. It was built in 1930, so it is 95 years old, older 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 10 vehicles a day, roughly 5% of them trucks, projected to reach 15 by 2043. The structure is 36 ft (11.1 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLocal DD.6-18.4
CrossesStream
Location1.0S 1.0E of Niotaze
RouteCounty Highway 0
CountyChautauqua County
StateKansas
Coordinates37.04583, -95.99021
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11.6 US tons
Inventory rating6.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOther
Main spans1
Design loadUnknown
Structure length36 ft (11.1 m)
Longest span35 ft (10.6 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2016)
Projected traffic15 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local DD.6-18.4 over Stream built?

It was built in 1930, making it 95 years old in 2025.

What condition is Local DD.6-18.4 over Stream 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 July 2023.

How much traffic does Local DD.6-18.4 over Stream carry?

About 10 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Local DD.6-18.4 over Stream?

The structure is 36 ft (11.1 m) long with a longest span of 35 ft (10.6 m) and a deck 14 ft wide.

Who owns Local DD.6-18.4 over Stream?

It is owned by the County Highway Agency.