US Bridges

20 Road (rs 1417) over Ladder Creek

FairPosted for load

Wichita County, Kansas · 7.2N of Marienthal · Structure no. 000000001020100

Built
1966
59 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
275 ft
5 main spans
Daily traffic
350
2021 count
Owner
County
County Highway Agency

About this bridge

20 Road (rs 1417) over Ladder Creek is a steel continuous stringer/multi-beam or girder carrying 20 Road (rs 1417) over Ladder Creek in Wichita County, Kansas. It was built in 1966, so it is 59 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 350 vehicles a day, roughly 10% of them trucks, projected to reach 370 by 2044. The structure is 275 ft (83.8 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries20 Road (rs 1417)
CrossesLadder Creek
Location7.2N of Marienthal
RouteCounty Highway 1417
CountyWichita County
StateKansas
Coordinates38.59222, -101.22056
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11.1 US tons
Inventory rating5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length275 ft (83.8 m)
Longest span60 ft (18.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic350 (2021)
Projected traffic370 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 20 Road (rs 1417) over Ladder Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is 20 Road (rs 1417) over Ladder 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 June 2024.

How much traffic does 20 Road (rs 1417) over Ladder Creek carry?

About 350 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is 20 Road (rs 1417) over Ladder Creek?

The structure is 275 ft (83.8 m) long with a longest span of 60 ft (18.2 m) and a deck 28 ft wide.

Who owns 20 Road (rs 1417) over Ladder Creek?

It is owned by the County Highway Agency.