US Bridges

Rs 1207 120 over Trib. to Six Mile Creek

Fair

Shawnee County, Kansas · 3.5N 1.1E of Auburn · Structure no. 000000000890360

Built
1939
86 years old, rebuilt 1989
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
1,660
2020 count
Owner
County
County Highway Agency

About this bridge

Rs 1207 120 over Trib. to Six Mile Creek is a concrete culvert carrying Rs 1207 120 over Trib. to Six Mile Creek in Shawnee County, Kansas. It was built in 1939 and reconstructed in 1989, so it is 86 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 1,660 vehicles a day, roughly 1% of them trucks, projected to reach 2,000 by 2040. The structure is 21 ft (6.3 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRs 1207 120
CrossesTrib. to Six Mile Creek
Location3.5N 1.1E of Auburn
RouteCounty Highway 1207
StateKansas
Coordinates38.95611, -95.79681
Functional classUrban Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable 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 width36 ft (10.9 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,660 (2020)
Projected traffic2,000 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Rs 1207 120 over Trib. to Six Mile Creek built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1989.

What condition is Rs 1207 120 over Trib. to Six Mile 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 August 2024.

How much traffic does Rs 1207 120 over Trib. to Six Mile Creek carry?

About 1,660 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Rs 1207 120 over Trib. to Six Mile Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns Rs 1207 120 over Trib. to Six Mile Creek?

It is owned by the County Highway Agency.