US Bridges

Local 3-D.6 over Stream

FairPosted for load

Harper County, Kansas · 8.0N 3.5W of Attica · Structure no. 000390715606640

Built
1954
71 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
35 ft
2 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

Local 3-D.6 over Stream is a wood or timber stringer/multi-beam or girder carrying Local 3-D.6 over Stream in Harper County, Kansas. It was built in 1954, so it is 71 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 10% of them trucks, projected to reach 10 by 2043. The structure is 35 ft (10.7 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLocal 3-D.6
CrossesStream
Location8.0N 3.5W of Attica
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.35506, -98.28464
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6.6 US tons
Inventory rating4.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span17 ft (5.2 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2021)
Projected traffic10 by 2043
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$475,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local 3-D.6 over Stream built?

It was built in 1954, making it 71 years old in 2025.

What condition is Local 3-D.6 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 February 2023.

How much traffic does Local 3-D.6 over Stream carry?

About 10 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Local 3-D.6 over Stream?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m) and a deck 18 ft wide.

Who owns Local 3-D.6 over Stream?

It is owned by the County Highway Agency.