US Bridges

11th. Rd. over Rock Creek

Fair

Coffey County, Kansas · 11.0-I.6 · Structure no. 000160985705500

Built
1935
90 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
50
2013 count
Owner
County
County Highway Agency

About this bridge

11th. Rd. over Rock Creek is a concrete culvert carrying 11th. Rd. over Rock Creek in Coffey 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 60 by 2044. The structure is 21 ft (6.3 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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Carries11th. Rd.
CrossesRock Creek
Location11.0-I.6
RouteCounty Highway 0
CountyCoffey County
StateKansas
Coordinates38.18519, -95.80067
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2013)
Projected traffic60 by 2044
Trucks5%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 11th. Rd. over Rock Creek built?

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

What condition is 11th. Rd. over Rock 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 April 2024.

How much traffic does 11th. Rd. over Rock Creek carry?

About 50 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is 11th. Rd. over Rock Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns 11th. Rd. over Rock Creek?

It is owned by the County Highway Agency.