US Bridges

W. 120th N over Silver Creek

FairPosted for load

Sumner County, Kansas · 0.2S 3.8E of Millerton · Structure no. 000960803606540

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
45 ft
2 main spans
Daily traffic
25
2009 count
Owner
County
County Highway Agency

About this bridge

W. 120th N over Silver Creek is a steel continuous stringer/multi-beam or girder carrying W. 120th N over Silver Creek in Sumner County, Kansas. It was built in 1960, so it is 65 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 25 vehicles a day, roughly 1% of them trucks, projected to reach 25 by 2043. The structure is 45 ft (13.7 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesW. 120th N
CrossesSilver Creek
Location0.2S 3.8E of Millerton
RouteCounty Highway 0
CountySumner County
StateKansas
Coordinates37.43253, -97.48576
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.6 US tons
Inventory rating15.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2009)
Projected traffic25 by 2043
Trucks1%
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 W. 120th N over Silver Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is W. 120th N over Silver 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 June 2024.

How much traffic does W. 120th N over Silver Creek carry?

About 25 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is W. 120th N over Silver Creek?

The structure is 45 ft (13.7 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns W. 120th N over Silver Creek?

It is owned by the County Highway Agency.