US Bridges

150 Road over Cottonwood Creek

FairPosted for load

Smith County, Kansas · 2.0N 2.9E of Kensington · Structure no. 000920645903280

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
30 ft
4 main spans
Daily traffic
20
2020 count
Owner
County
County Highway Agency

About this bridge

150 Road over Cottonwood Creek is a steel continuous stringer/multi-beam or girder carrying 150 Road over Cottonwood Creek in Smith County, Kansas. It was built in 1967, so it is 58 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 20 vehicles a day, projected to reach 20 by 2043. The structure is 30 ft (9.1 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries150 Road
CrossesCottonwood Creek
Location2.0N 2.9E of Kensington
RouteCounty Highway 0
CountySmith County
StateKansas
Coordinates39.79972, -98.97378
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating24.6 US tons
Inventory rating14.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans4
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2020)
Projected traffic20 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$300,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 150 Road over Cottonwood Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is 150 Road over Cottonwood 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 August 2024.

How much traffic does 150 Road over Cottonwood Creek carry?

About 20 vehicles per day (2020 count).

How long is 150 Road over Cottonwood Creek?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m) and a deck 16 ft wide.

Who owns 150 Road over Cottonwood Creek?

It is owned by the County Highway Agency.