US Bridges

SW 100 RD over Stream

Fair

Harper County, Kansas · 0.8E of Waldron · Structure no. 000390729707120

Built
1988
37 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
80 ft
3 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

SW 100 RD over Stream is a steel continuous stringer/multi-beam or girder carrying SW 100 RD over Stream in Harper County, Kansas. It was built in 1988, so it is 37 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.

It carries about 10 vehicles a day, roughly 2% of them trucks, projected to reach 10 by 2043. The structure is 80 ft (24.4 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSW 100 RD
CrossesStream
Location0.8E of Waldron
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.00722, -98.15231
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length80 ft (24.4 m)
Longest span33 ft (10 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2021)
Projected traffic10 by 2043
Trucks2%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 100 RD over Stream built?

It was built in 1988, making it 37 years old in 2025.

What condition is SW 100 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 June 2023.

How much traffic does SW 100 RD over Stream carry?

About 10 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is SW 100 RD over Stream?

The structure is 80 ft (24.4 m) long with a longest span of 33 ft (10 m) and a deck 25 ft wide.

Who owns SW 100 RD over Stream?

It is owned by the County Highway Agency.