US Bridges

2700 RD Mile 9 over Trib. to Onion Creek

Fair

Montgomery County, Kansas · 5.3N of Tyro · Structure no. 000000000630290

Built
1935
90 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
488
2010 count
Owner
County
County Highway Agency

About this bridge

2700 RD Mile 9 over Trib. to Onion Creek is a concrete culvert carrying 2700 RD Mile 9 over Trib. to Onion Creek in Montgomery 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 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 488 vehicles a day, roughly 3% of them trucks, projected to reach 586 by 2039. The structure is 24 ft (7.2 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries2700 RD Mile 9
CrossesTrib. to Onion Creek
Location5.3N of Tyro
RouteCounty Highway 474
CountyMontgomery County
StateKansas
Coordinates37.11606, -95.81941
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length24 ft (7.2 m)
Longest span8 ft (2.4 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic488 (2010)
Projected traffic586 by 2039
Trucks3%
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 2700 RD Mile 9 over Trib. to Onion Creek built?

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

What condition is 2700 RD Mile 9 over Trib. to Onion 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 March 2023.

How much traffic does 2700 RD Mile 9 over Trib. to Onion Creek carry?

About 488 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is 2700 RD Mile 9 over Trib. to Onion Creek?

The structure is 24 ft (7.2 m) long with a longest span of 8 ft (2.4 m) and a deck 29 ft wide.

Who owns 2700 RD Mile 9 over Trib. to Onion Creek?

It is owned by the County Highway Agency.