US Bridges

NW 80 RD 9.0-I.4 over Bluff Ck.

FairPosted for load

Harper County, Kansas · 3.2W of Crystal Springs · Structure no. 000390725406760

Built
1998
27 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
144 ft
4 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

NW 80 RD 9.0-I.4 over Bluff Ck. is a steel stringer/multi-beam or girder carrying NW 80 RD 9.0-I.4 over Bluff Ck. in Harper County, Kansas. It was built in 1998, so it is 27 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 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 10 vehicles a day, roughly 5% of them trucks, projected to reach 10 by 2043. The structure is 144 ft (44 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNW 80 RD 9.0-I.4
CrossesBluff Ck.
Location3.2W of Crystal Springs
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.26831, -98.19425
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.5 US tons
Inventory rating11.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans4
Design loadUnknown
Structure length144 ft (44 m)
Longest span36 ft (10.9 m)
Deck width24 ft (7.4 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
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 80 RD 9.0-I.4 over Bluff Ck. built?

It was built in 1998, making it 27 years old in 2025.

What condition is NW 80 RD 9.0-I.4 over Bluff Ck. 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 80 RD 9.0-I.4 over Bluff Ck. carry?

About 10 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is NW 80 RD 9.0-I.4 over Bluff Ck.?

The structure is 144 ft (44 m) long with a longest span of 36 ft (10.9 m) and a deck 24 ft wide.

Who owns NW 80 RD 9.0-I.4 over Bluff Ck.?

It is owned by the County Highway Agency.