US Bridges

155th RD over Silver Creek

PoorPosted for load

Cowley County, Kansas · 2.6N of Cameron City · Structure no. 000180871506969

Built
1910
115 years old
Condition
Poor
inspected May 2024
Type
Truss - Thru
Steel
Length
109 ft
1 main span
Daily traffic
30
2018 count
Owner
County
County Highway Agency

About this bridge

155th RD over Silver Creek is a steel truss - thru carrying 155th RD over Silver Creek in Cowley County, Kansas. It was built in 1910, so it is 115 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 5% of them trucks, projected to reach 35 by 2044. The structure is 109 ft (33.2 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries155th RD
CrossesSilver Creek
Location2.6N of Cameron City
RouteCounty Highway 0
StateKansas
Coordinates37.11526, -96.8686
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12.6 US tons
Inventory rating9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+1 approach)
Design loadUnknown
Structure length109 ft (33.2 m)
Longest span89 ft (27 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2018)
Projected traffic35 by 2044
Trucks5%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$740,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 155th RD over Silver Creek built?

It was built in 1910, making it 115 years old in 2025.

What condition is 155th RD over Silver Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does 155th RD over Silver Creek carry?

About 30 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is 155th RD over Silver Creek?

The structure is 109 ft (33.2 m) long with a longest span of 89 ft (27 m) and a deck 23 ft wide.

Who owns 155th RD over Silver Creek?

It is owned by the County Highway Agency.