US Bridges

3400 RD Mile 10 over Trib. to Onion Creek

FairPosted for load

Montgomery County, Kansas · 0.5E of Bolton · Structure no. 000630987306920

Built
1930
95 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
10
2010 count
Owner
County
County Highway Agency

About this bridge

3400 RD Mile 10 over Trib. to Onion Creek is a concrete continuous slab carrying 3400 RD Mile 10 over Trib. to Onion Creek in Montgomery County, Kansas. It was built in 1930, so it is 95 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 5 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 10 vehicles a day, projected to reach 15 by 2039. The structure is 35 ft (10.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries3400 RD Mile 10
CrossesTrib. to Onion Creek
Location0.5E of Bolton
RouteCounty Highway 0
CountyMontgomery County
StateKansas
Coordinates37.15326, -95.79587
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.8 US tons
Inventory rating20.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length35 ft (10.8 m)
Longest span17 ft (5.1 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2010)
Projected traffic15 by 2039
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$120,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 3400 RD Mile 10 over Trib. to Onion Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is 3400 RD Mile 10 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 3400 RD Mile 10 over Trib. to Onion Creek carry?

About 10 vehicles per day (2010 count).

How long is 3400 RD Mile 10 over Trib. to Onion Creek?

The structure is 35 ft (10.8 m) long with a longest span of 17 ft (5.1 m) and a deck 24 ft wide.

Who owns 3400 RD Mile 10 over Trib. to Onion Creek?

It is owned by the County Highway Agency.