US Bridges

6th ST Osawatomie over Pottawatomie Creek

GoodPosted for load

Miami County, Kansas · 0.9S of Osawatomie · Structure no. 000000000610581

Built
1932
93 years old, rebuilt 2012
Condition
Good
inspected July 2023
Type
Arch - Thru
Concrete
Length
373 ft
3 main spans
Daily traffic
2,715
2011 count
Owner
County
County Highway Agency

About this bridge

6th ST Osawatomie over Pottawatomie Creek is a concrete arch - thru carrying 6th ST Osawatomie over Pottawatomie Creek in Miami County, Kansas. It was built in 1932 and reconstructed in 2012, so it is 93 years old, older 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. Its operating status is: posted for load restriction.

It carries about 2,715 vehicles a day, roughly 10% of them trucks, projected to reach 2,736 by 2043. The structure is 373 ft (113.7 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries6th ST Osawatomie
CrossesPottawatomie Creek
Location0.9S of Osawatomie
RouteCounty Highway 1604
StateKansas
Coordinates38.48531, -94.95091
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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.4 US tons
Inventory rating35.6 US tons

Structure

Structure typeArch - Thru
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadH 15
Structure length373 ft (113.7 m)
Longest span120 ft (36.6 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck30 ft (9.1 m)

Traffic and service

Average daily traffic2,715 (2011)
Projected traffic2,736 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 6th ST Osawatomie over Pottawatomie Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2012.

What condition is 6th ST Osawatomie over Pottawatomie Creek 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 July 2023.

How much traffic does 6th ST Osawatomie over Pottawatomie Creek carry?

About 2,715 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is 6th ST Osawatomie over Pottawatomie Creek?

The structure is 373 ft (113.7 m) long with a longest span of 120 ft (36.6 m) and a deck 26 ft wide.

Who owns 6th ST Osawatomie over Pottawatomie Creek?

It is owned by the County Highway Agency.