US Bridges

NW 50 RD over Stream

FairPosted for load

Harper County, Kansas · 2.7S 1.3E Crystal Springs · Structure no. 000390733806820

Built
1980
45 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
40 ft
2 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

NW 50 RD over Stream is a steel continuous stringer/multi-beam or girder carrying NW 50 RD over Stream in Harper County, Kansas. It was built in 1980, so it is 45 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 10 vehicles a day, projected to reach 10 by 2043. The structure is 40 ft (12.1 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNW 50 RD
CrossesStream
Location2.7S 1.3E Crystal Springs
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.22429, -98.11557
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.9 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length40 ft (12.1 m)
Longest span19 ft (5.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2021)
Projected traffic10 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$115,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 50 RD over Stream built?

It was built in 1980, making it 45 years old in 2025.

What condition is NW 50 RD over Stream 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 50 RD over Stream carry?

About 10 vehicles per day (2021 count).

How long is NW 50 RD over Stream?

The structure is 40 ft (12.1 m) long with a longest span of 19 ft (5.7 m) and a deck 24 ft wide.

Who owns NW 50 RD over Stream?

It is owned by the County Highway Agency.