US Bridges

Kennebec ST at 9th over Rock Creek

Fair

Coffey County, Kansas · In Burlington at 9th ST · Structure no. 503550160000002

Built
1950
75 years old, rebuilt 2021
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
200
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kennebec ST at 9th over Rock Creek is a steel stringer/multi-beam or girder carrying Kennebec ST at 9th over Rock Creek in Coffey County, Kansas. It was built in 1950 and reconstructed in 2021, so it is 75 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 240 by 2044. The structure is 44 ft (13.4 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesKennebec ST at 9th
CrossesRock Creek
LocationIn Burlington at 9th ST
RouteCity Street 0
CountyCoffey County
StateKansas
Coordinates38.19921, -95.74625
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66.2 US tons
Inventory rating51.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic200 (2013)
Projected traffic240 by 2044
Trucks5%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Kennebec ST at 9th over Rock Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2021.

What condition is Kennebec ST at 9th 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 2023.

How much traffic does Kennebec ST at 9th over Rock Creek carry?

About 200 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Kennebec ST at 9th over Rock Creek?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 27 ft wide.

Who owns Kennebec ST at 9th over Rock Creek?

It is owned by the City or Municipal Highway Agency.