US Bridges

Rd. a (A.0-3.4) over Rock Creek

FairPosted for load

Lyon County, Kansas · 3.0N 5.0W of Bushong · Structure no. 000560925004804

Built
1975
50 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
80
2007 count
Owner
County
County Highway Agency

About this bridge

Rd. a (A.0-3.4) over Rock Creek is a prestressed concrete tee beam carrying Rd. a (A.0-3.4) over Rock Creek in Lyon 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 80 vehicles a day, projected to reach 90 by 2043. The structure is 80 ft (24.4 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesRd. a (A.0-3.4)
CrossesRock Creek
Location3.0N 5.0W of Bushong
RouteCounty Highway 5601
CountyLyon County
StateKansas
Coordinates38.68906, -96.35325
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating25 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length80 ft (24.4 m)
Longest span79 ft (24 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic80 (2007)
Projected traffic90 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$110,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rd. a (A.0-3.4) over Rock Creek built?

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

What condition is Rd. a (A.0-3.4) over Rock 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 February 2023.

How much traffic does Rd. a (A.0-3.4) over Rock Creek carry?

About 80 vehicles per day (2007 count).

How long is Rd. a (A.0-3.4) over Rock Creek?

The structure is 80 ft (24.4 m) long with a longest span of 79 ft (24 m) and a deck 24 ft wide.

Who owns Rd. a (A.0-3.4) over Rock Creek?

It is owned by the County Highway Agency.