US Bridges

SW 120th Ave over W. Sandy Creek

FairPosted for load

Harper County, Kansas · 1.0S 0.3W of Midway · Structure no. 000390719006929

Built
1930
95 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
198 ft
6 main spans
Daily traffic
30
2021 count
Owner
County
County Highway Agency

About this bridge

SW 120th Ave over W. Sandy Creek is a concrete tee beam carrying SW 120th Ave over W. Sandy Creek in Harper County, Kansas. It was built in 1930, so it is 95 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 5% of them trucks, projected to reach 30 by 2043. The structure is 198 ft (60.4 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSW 120th Ave
CrossesW. Sandy Creek
Location1.0S 0.3W of Midway
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.14006, -98.25703
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating20 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length198 ft (60.4 m)
Longest span33 ft (10 m)
Deck width22 ft (6.8 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2021)
Projected traffic30 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 120th Ave over W. Sandy Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is SW 120th Ave over W. Sandy 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 May 2023.

How much traffic does SW 120th Ave over W. Sandy Creek carry?

About 30 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SW 120th Ave over W. Sandy Creek?

The structure is 198 ft (60.4 m) long with a longest span of 33 ft (10 m) and a deck 22 ft wide.

Who owns SW 120th Ave over W. Sandy Creek?

It is owned by the County Highway Agency.