US Bridges

120th RD over Trib to Coyote Creek

Fair

Trego County, Kansas · 2.9N 0.6W of Collyer · Structure no. 000980519004266

Built
1935
90 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
20
2020 count
Owner
County
County Highway Agency

About this bridge

120th RD over Trib to Coyote Creek is a concrete culvert carrying 120th RD over Trib to Coyote Creek in Trego County, Kansas. It was built in 1935, so it is 90 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20 vehicles a day, projected to reach 30 by 2043. The structure is 26 ft (7.8 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries120th RD
CrossesTrib to Coyote Creek
Location2.9N 0.6W of Collyer
RouteCounty Highway 0
CountyTrego County
StateKansas
Coordinates39.08266, -100.1302
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length26 ft (7.8 m)
Longest span8 ft (2.4 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2020)
Projected traffic30 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 120th RD over Trib to Coyote Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is 120th RD over Trib to Coyote 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 2023.

How much traffic does 120th RD over Trib to Coyote Creek carry?

About 20 vehicles per day (2020 count).

How long is 120th RD over Trib to Coyote Creek?

The structure is 26 ft (7.8 m) long with a longest span of 8 ft (2.4 m) and a deck 24 ft wide.

Who owns 120th RD over Trib to Coyote Creek?

It is owned by the County Highway Agency.