US Bridges

RD 170 931.5-520 over Lindy Creek

FairPosted for load

Lyon County, Kansas · 0.5S 2.0E of Plymouth · Structure no. 000560931505200

Built
1921
104 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete
Length
47 ft
1 main span
Daily traffic
50
2007 count
Owner
County
County Highway Agency

About this bridge

RD 170 931.5-520 over Lindy Creek is a concrete tee beam carrying RD 170 931.5-520 over Lindy Creek in Lyon County, Kansas. It was built in 1921, so it is 104 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 6 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 50 vehicles a day, projected to reach 50 by 2043. The structure is 47 ft (14.2 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesRD 170 931.5-520
CrossesLindy Creek
Location0.5S 2.0E of Plymouth
RouteCounty Highway 0
CountyLyon County
StateKansas
Coordinates38.40583, -96.28919
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.3 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length47 ft (14.2 m)
Longest span44 ft (13.5 m)
Deck width23 ft (6.9 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2007)
Projected traffic50 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$83,000
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 170 931.5-520 over Lindy Creek built?

It was built in 1921, making it 104 years old in 2025.

What condition is RD 170 931.5-520 over Lindy 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 170 931.5-520 over Lindy Creek carry?

About 50 vehicles per day (2007 count).

How long is RD 170 931.5-520 over Lindy Creek?

The structure is 47 ft (14.2 m) long with a longest span of 44 ft (13.5 m) and a deck 23 ft wide.

Who owns RD 170 931.5-520 over Lindy Creek?

It is owned by the County Highway Agency.