US Bridges

Rs 60 170th St. over Unnamed Stream

FairPosted for load

Brown County, Kansas · 2.0E of Baker · Structure no. 000000000070007

Built
1930
95 years old, rebuilt 1940
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
28 ft
1 main span
Daily traffic
328
2016 count
Owner
County
County Highway Agency

About this bridge

Rs 60 170th St. over Unnamed Stream is a concrete tee beam carrying Rs 60 170th St. over Unnamed Stream in Brown County, Kansas. It was built in 1930 and reconstructed in 1940, so it is 95 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 5 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 328 vehicles a day, roughly 10% of them trucks, projected to reach 361 by 2044. The structure is 28 ft (8.5 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRs 60 170th St.
CrossesUnnamed Stream
Location2.0E of Baker
RouteCounty Highway 60
CountyBrown County
StateKansas
Coordinates39.75448, -95.52513
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating20 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic328 (2016)
Projected traffic361 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$125,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 60 170th St. over Unnamed Stream built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1940.

What condition is Rs 60 170th St. 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 January 2024.

How much traffic does Rs 60 170th St. over Unnamed Stream carry?

About 328 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Rs 60 170th St. over Unnamed Stream?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 27 ft wide.

Who owns Rs 60 170th St. over Unnamed Stream?

It is owned by the County Highway Agency.