US Bridges

NW 120 Ave over Camp Creek

FairPosted for load

Harper County, Kansas · 2.5N 0.3W of Midway · Structure no. 000390719006865

Built
1961
64 years old, rebuilt 1991
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
64 ft
2 main spans
Daily traffic
20
2021 count
Owner
County
County Highway Agency

About this bridge

NW 120 Ave over Camp Creek is a steel continuous stringer/multi-beam or girder carrying NW 120 Ave over Camp Creek in Harper County, Kansas. It was built in 1961 and reconstructed in 1991, so it is 64 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 20 by 2043. The structure is 64 ft (19.4 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNW 120 Ave
CrossesCamp Creek
Location2.5N 0.3W of Midway
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.18783, -98.25722
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 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 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 rating9.4 US tons
Inventory rating5.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length64 ft (19.4 m)
Longest span31 ft (9.5 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2021)
Projected traffic20 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 120 Ave over Camp Creek built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1991.

What condition is NW 120 Ave over Camp 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 120 Ave over Camp Creek carry?

About 20 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is NW 120 Ave over Camp Creek?

The structure is 64 ft (19.4 m) long with a longest span of 31 ft (9.5 m) and a deck 20 ft wide.

Who owns NW 120 Ave over Camp Creek?

It is owned by the County Highway Agency.