US Bridges

Y Road (rs 867) over Twelvemile Creek Trib.

FairPosted for load

Smith County, Kansas · 3.6N 4.0E of Portis · Structure no. 000000000920044

Built
1940
85 years old, rebuilt 2020
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
2 main spans
Daily traffic
70
2020 count
Owner
County
County Highway Agency

About this bridge

Y Road (rs 867) over Twelvemile Creek Trib. is a steel stringer/multi-beam or girder carrying Y Road (rs 867) over Twelvemile Creek Trib. in Smith County, Kansas. It was built in 1940 and reconstructed in 2020, so it is 85 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 70 vehicles a day, projected to reach 80 by 2043. The structure is 34 ft (10.4 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesY Road (rs 867)
CrossesTwelvemile Creek Trib.
Location3.6N 4.0E of Portis
RouteCounty Highway 867
CountySmith County
StateKansas
Coordinates39.61889, -98.61702
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
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.3 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span16 ft (5 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic70 (2020)
Projected traffic80 by 2043
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Y Road (rs 867) over Twelvemile Creek Trib. built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2020.

What condition is Y Road (rs 867) over Twelvemile Creek Trib. 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 March 2023.

How much traffic does Y Road (rs 867) over Twelvemile Creek Trib. carry?

About 70 vehicles per day (2020 count).

How long is Y Road (rs 867) over Twelvemile Creek Trib.?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (5 m) and a deck 24 ft wide.

Who owns Y Road (rs 867) over Twelvemile Creek Trib.?

It is owned by the County Highway Agency.