US Bridges

RD 70 931.7-540.7 over Stream

FairPosted for load

Lyon County, Kansas · 6.3W of Olpe · Structure no. 000560931705400

Built
1939
86 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
10
2007 count
Owner
County
County Highway Agency

About this bridge

RD 70 931.7-540.7 over Stream is a concrete culvert carrying RD 70 931.7-540.7 over Stream in Lyon County, Kansas. It was built in 1939, so it is 86 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, projected to reach 10 by 2043. The structure is 26 ft (7.9 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesRD 70 931.7-540.7
CrossesStream
Location6.3W of Olpe
RouteCounty Highway 0
CountyLyon County
StateKansas
Coordinates38.26017, -96.28892
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24 US tons
Inventory rating15 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2007)
Projected traffic10 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$52,000
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 70 931.7-540.7 over Stream built?

It was built in 1939, making it 86 years old in 2025.

What condition is RD 70 931.7-540.7 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 2024.

How much traffic does RD 70 931.7-540.7 over Stream carry?

About 10 vehicles per day (2007 count).

How long is RD 70 931.7-540.7 over Stream?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 27 ft wide.

Who owns RD 70 931.7-540.7 over Stream?

It is owned by the County Highway Agency.