US Bridges

S. 70th Ave. over Trib. to Fourmile Creek

FairPosted for load

Osborne County, Kansas · 17.5S 4.0E of Osborne · Structure no. 000710683004125

Built
1949
76 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
34 ft
2 main spans
Daily traffic
5
2020 count
Owner
County
County Highway Agency

About this bridge

S. 70th Ave. over Trib. to Fourmile Creek is a wood or timber stringer/multi-beam or girder carrying S. 70th Ave. over Trib. to Fourmile Creek in Osborne County, Kansas. It was built in 1949, so it is 76 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 5 vehicles a day, projected to reach 5 by 2043. The structure is 34 ft (10.5 m) long and 18 ft wide.

Location

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CarriesS. 70th Ave.
CrossesTrib. to Fourmile Creek
Location17.5S 4.0E of Osborne
RouteCounty Highway 7113
CountyOsborne County
StateKansas
Coordinates39.18214, -98.62005
Functional classRural Minor Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.4 US tons
Inventory rating21.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length34 ft (10.5 m)
Longest span17 ft (5.1 m)
Deck width18 ft (5.6 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic5 (2020)
Projected traffic5 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$71,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S. 70th Ave. over Trib. to Fourmile Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is S. 70th Ave. over Trib. to Fourmile Creek 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 August 2024.

How much traffic does S. 70th Ave. over Trib. to Fourmile Creek carry?

About 5 vehicles per day (2020 count).

How long is S. 70th Ave. over Trib. to Fourmile Creek?

The structure is 34 ft (10.5 m) long with a longest span of 17 ft (5.1 m) and a deck 18 ft wide.

Who owns S. 70th Ave. over Trib. to Fourmile Creek?

It is owned by the County Highway Agency.