US Bridges

NW 40th RD over Cottonwood Creek

FairPosted for load

Harper County, Kansas · 2.0S 5.0W of Attica · Structure no. 000390711606840

Built
1987
38 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
3 main spans
Daily traffic
12
2021 count
Owner
County
County Highway Agency

About this bridge

NW 40th RD over Cottonwood Creek is a wood or timber stringer/multi-beam or girder carrying NW 40th RD over Cottonwood Creek in Harper County, Kansas. It was built in 1987, so it is 38 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 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 12 vehicles a day, projected to reach 12 by 2043. The structure is 59 ft (18 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNW 40th RD
CrossesCottonwood Creek
Location2.0S 5.0W of Attica
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.21011, -98.31844
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.
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; 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating9.1 US tons
Inventory rating5.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length59 ft (18 m)
Longest span19 ft (5.7 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic12 (2021)
Projected traffic12 by 2043
Trucks0%
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$138,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 40th RD over Cottonwood Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is NW 40th RD 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 February 2023.

How much traffic does NW 40th RD over Cottonwood Creek carry?

About 12 vehicles per day (2021 count).

How long is NW 40th RD over Cottonwood Creek?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.7 m) and a deck 20 ft wide.

Who owns NW 40th RD over Cottonwood Creek?

It is owned by the County Highway Agency.