US Bridges

NW 90 RD over Stream

FairPosted for load

Harper County, Kansas · 2.0E 1.3N Crystal Spgs. · Structure no. 000390735606740

Built
1972
53 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
99 ft
5 main spans
Daily traffic
30
2021 count
Owner
County
County Highway Agency

About this bridge

NW 90 RD over Stream is a steel continuous stringer/multi-beam or girder carrying NW 90 RD over Stream in Harper County, Kansas. It was built in 1972, so it is 53 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 30 by 2043. The structure is 99 ft (30.2 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 90 RD
CrossesStream
Location2.0E 1.3N Crystal Spgs.
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.28266, -98.10089
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans5
Design loadUnknown
Structure length99 ft (30.2 m)
Longest span19 ft (5.7 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2021)
Projected traffic30 by 2043
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$227,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 90 RD over Stream built?

It was built in 1972, making it 53 years old in 2025.

What condition is NW 90 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 90 RD over Stream carry?

About 30 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is NW 90 RD over Stream?

The structure is 99 ft (30.2 m) long with a longest span of 19 ft (5.7 m) and a deck 20 ft wide.

Who owns NW 90 RD over Stream?

It is owned by the County Highway Agency.