US Bridges

2700 RD Mile 11 over Onion Creek Trib.

Good

Montgomery County, Kansas · 1.0S.W. of Bolton · Structure no. 000000000630293

Built
1991
34 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
387
2010 count
Owner
County
County Highway Agency

About this bridge

2700 RD Mile 11 over Onion Creek Trib. is a concrete continuous slab carrying 2700 RD Mile 11 over Onion Creek Trib. in Montgomery County, Kansas. It was built in 1991, so it is 34 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 387 vehicles a day, roughly 3% of them trucks, projected to reach 464 by 2039. The structure is 123 ft (37.4 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries2700 RD Mile 11
CrossesOnion Creek Trib.
Location1.0S.W. of Bolton
RouteCounty Highway 474
StateKansas
Coordinates37.14359, -95.8193
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length123 ft (37.4 m)
Longest span48 ft (14.6 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 traffic387 (2010)
Projected traffic464 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 2700 RD Mile 11 over Onion Creek Trib. built?

It was built in 1991, making it 34 years old in 2025.

What condition is 2700 RD Mile 11 over Onion Creek Trib. in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does 2700 RD Mile 11 over Onion Creek Trib. carry?

About 387 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is 2700 RD Mile 11 over Onion Creek Trib.?

The structure is 123 ft (37.4 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns 2700 RD Mile 11 over Onion Creek Trib.?

It is owned by the County Highway Agency.