US Bridges

120th Rd. over Branch of Plum Creek

FairPosted for load

Woodson County, Kansas · 283 2.0S 2.4W of Piqua · Structure no. 001041009605900

Built
1930
95 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
30
2019 count
Owner
County
County Highway Agency

About this bridge

120th Rd. over Branch of Plum Creek is a steel stringer/multi-beam or girder carrying 120th Rd. over Branch of Plum Creek in Woodson 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, projected to reach 36 by 2044. The structure is 23 ft (7 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries120th Rd.
CrossesBranch of Plum Creek
Location283 2.0S 2.4W of Piqua
RouteCounty Highway 0
CountyWoodson County
StateKansas
Coordinates37.893, -95.58125
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.6 US tons
Inventory rating15.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width18 ft (5.4 m)
Roadway width16 ft (5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2019)
Projected traffic36 by 2044
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$250,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 120th Rd. over Branch of Plum Creek built?

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

What condition is 120th Rd. over Branch of Plum 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 September 2024.

How much traffic does 120th Rd. over Branch of Plum Creek carry?

About 30 vehicles per day (2019 count).

How long is 120th Rd. over Branch of Plum Creek?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 18 ft wide.

Who owns 120th Rd. over Branch of Plum Creek?

It is owned by the County Highway Agency.