US Bridges

Rs 446 8th. Ave. over Trib. to Blaze Fork

Fair

McPherson County, Kansas · 4.2N of Inman · Structure no. 000000000590500

Built
1975
50 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
260
2020 count
Owner
County
County Highway Agency

About this bridge

Rs 446 8th. Ave. over Trib. to Blaze Fork is a concrete culvert carrying Rs 446 8th. Ave. over Trib. to Blaze Fork in McPherson County, Kansas. It was built in 1975, so it is 50 years old, younger 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 260 vehicles a day, roughly 12% of them trucks, projected to reach 400 by 2040. The structure is 37 ft (11.4 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesRs 446 8th. Ave.
CrossesTrib. to Blaze Fork
Location4.2N of Inman
RouteCounty Highway 446
CountyMcPherson County
StateKansas
Coordinates38.29201, -97.77776
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.5 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length37 ft (11.4 m)
Longest span12 ft (3.6 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic260 (2020)
Projected traffic400 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Rs 446 8th. Ave. over Trib. to Blaze Fork built?

It was built in 1975, making it 50 years old in 2025.

What condition is Rs 446 8th. Ave. over Trib. to Blaze Fork 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 September 2024.

How much traffic does Rs 446 8th. Ave. over Trib. to Blaze Fork carry?

About 260 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is Rs 446 8th. Ave. over Trib. to Blaze Fork?

The structure is 37 ft (11.4 m) long with a longest span of 12 ft (3.6 m) and a deck 35 ft wide.

Who owns Rs 446 8th. Ave. over Trib. to Blaze Fork?

It is owned by the County Highway Agency.