US Bridges

Rs 429 Smoky Val. over East Kentucky Creek

FairPosted for load

McPherson County, Kansas · 8.9W of Roxbury · Structure no. 000000000590200

Built
1946
79 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
41 ft
2 main spans
Daily traffic
510
2020 count
Owner
County
County Highway Agency

About this bridge

Rs 429 Smoky Val. over East Kentucky Creek is a concrete culvert carrying Rs 429 Smoky Val. over East Kentucky Creek in McPherson County, Kansas. It was built in 1946, so it is 79 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 510 vehicles a day, roughly 12% of them trucks, projected to reach 750 by 2040. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesRs 429 Smoky Val.
CrossesEast Kentucky Creek
Location8.9W of Roxbury
RouteCounty Highway 429
CountyMcPherson County
StateKansas
Coordinates38.55087, -97.59154
Functional classRural Major 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.5 US tons
Inventory rating13.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length41 ft (12.5 m)
Longest span20 ft (6 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic510 (2020)
Projected traffic750 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedNone recorded
Estimated improvement cost$150,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 429 Smoky Val. over East Kentucky Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is Rs 429 Smoky Val. over East Kentucky 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 May 2023.

How much traffic does Rs 429 Smoky Val. over East Kentucky Creek carry?

About 510 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is Rs 429 Smoky Val. over East Kentucky Creek?

The structure is 41 ft (12.5 m) long with a longest span of 20 ft (6 m) and a deck 28 ft wide.

Who owns Rs 429 Smoky Val. over East Kentucky Creek?

It is owned by the County Highway Agency.