US Bridges

12th Rd. over Trib. to Bommer Creek

FairPosted for load

Marshall County, Kansas · 1.7S of Oketo · Structure no. 000000000580160

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
474
2007 count
Owner
County
County Highway Agency

About this bridge

12th Rd. over Trib. to Bommer Creek is a concrete culvert carrying 12th Rd. over Trib. to Bommer Creek in Marshall County, Kansas. It was built in 1967, so it is 58 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 474 vehicles a day, roughly 11% of them trucks, projected to reach 500 by 2043. The structure is 30 ft (9.1 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries12th Rd.
CrossesTrib. to Bommer Creek
Location1.7S of Oketo
RouteCounty Highway 433
CountyMarshall County
StateKansas
Coordinates39.93782, -96.60084
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating21.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length30 ft (9.1 m)
Longest span14 ft (4.2 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic474 (2007)
Projected traffic500 by 2043
Trucks11%
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 12th Rd. over Trib. to Bommer Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is 12th Rd. over Trib. to Bommer 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 July 2023.

How much traffic does 12th Rd. over Trib. to Bommer Creek carry?

About 474 vehicles per day (2007 count), of which roughly 11% are trucks.

How long is 12th Rd. over Trib. to Bommer Creek?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.2 m) and a deck 37 ft wide.

Who owns 12th Rd. over Trib. to Bommer Creek?

It is owned by the County Highway Agency.