US Bridges

W 309th ST 164 over Unnamed Stream

FairPosted for load

Osage County, Kansas · 0.8S 0.9E of Reading · Structure no. 000700969905060

Built
1925
100 years old
Condition
Fair
inspected November 2024
Type
Girder and Floorbeam System
Steel
Length
29 ft
1 main span
Daily traffic
45
2019 count
Owner
County
County Highway Agency

About this bridge

W 309th ST 164 over Unnamed Stream is a steel girder and floorbeam system carrying W 309th ST 164 over Unnamed Stream in Osage County, Kansas. It was built in 1925, so it is 100 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. Its operating status is: posted for load restriction.

It carries about 45 vehicles a day, projected to reach 54 by 2044. The structure is 29 ft (8.8 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesW 309th ST 164
CrossesUnnamed Stream
Location0.8S 0.9E of Reading
RouteCounty Highway 0
CountyOsage County
StateKansas
Coordinates38.50667, -95.93323
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20 US tons
Inventory rating11.9 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span27 ft (8.3 m)
Deck width14 ft (4.4 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic45 (2019)
Projected traffic54 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was W 309th ST 164 over Unnamed Stream built?

It was built in 1925, making it 100 years old in 2025.

What condition is W 309th ST 164 over Unnamed Stream 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 November 2024.

How much traffic does W 309th ST 164 over Unnamed Stream carry?

About 45 vehicles per day (2019 count).

How long is W 309th ST 164 over Unnamed Stream?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.3 m) and a deck 14 ft wide.

Who owns W 309th ST 164 over Unnamed Stream?

It is owned by the County Highway Agency.