US Bridges

S Road (rs 906) over Trib to Smoky Hill River

Fair

Trego County, Kansas · 1.0S 1.2E of Trego Center · Structure no. 000000000980410

Built
1959
66 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
50
2020 count
Owner
County
County Highway Agency

About this bridge

S Road (rs 906) over Trib to Smoky Hill River is a concrete culvert carrying S Road (rs 906) over Trib to Smoky Hill River in Trego County, Kansas. It was built in 1959, so it is 66 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.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2043. The structure is 43 ft (13 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesS Road (rs 906)
CrossesTrib to Smoky Hill River
Location1.0S 1.2E of Trego Center
RouteCounty Highway 906
CountyTrego County
StateKansas
Coordinates38.87047, -99.86949
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length43 ft (13 m)
Longest span10 ft (3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2020)
Projected traffic60 by 2043
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S Road (rs 906) over Trib to Smoky Hill River built?

It was built in 1959, making it 66 years old in 2025.

What condition is S Road (rs 906) over Trib to Smoky Hill River 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 S Road (rs 906) over Trib to Smoky Hill River carry?

About 50 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is S Road (rs 906) over Trib to Smoky Hill River?

The structure is 43 ft (13 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns S Road (rs 906) over Trib to Smoky Hill River?

It is owned by the County Highway Agency.