US Bridges

7th Rd. 6.0-R.6 over Trib. to Big Blue River

FairPosted for load

Marshall County, Kansas · 1.5S 1.0W of Schroyer · Structure no. 000580889003346

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
10
2007 count
Owner
County
County Highway Agency

About this bridge

7th Rd. 6.0-R.6 over Trib. to Big Blue River is a steel stringer/multi-beam or girder carrying 7th Rd. 6.0-R.6 over Trib. to Big Blue River in Marshall County, Kansas. It was built in 1960, so it is 65 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 10 vehicles a day, projected to reach 10 by 2043. The structure is 41 ft (12.5 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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Carries7th Rd. 6.0-R.6
CrossesTrib. to Big Blue River
Location1.5S 1.0W of Schroyer
RouteCounty Highway 0
CountyMarshall County
StateKansas
Coordinates39.74654, -96.69453
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 inspectionMay 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.2 US tons
Inventory rating15 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span39 ft (11.8 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2007)
Projected traffic10 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 7th Rd. 6.0-R.6 over Trib. to Big Blue River built?

It was built in 1960, making it 65 years old in 2025.

What condition is 7th Rd. 6.0-R.6 over Trib. to Big Blue River 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 May 2023.

How much traffic does 7th Rd. 6.0-R.6 over Trib. to Big Blue River carry?

About 10 vehicles per day (2007 count).

How long is 7th Rd. 6.0-R.6 over Trib. to Big Blue River?

The structure is 41 ft (12.5 m) long with a longest span of 39 ft (11.8 m) and a deck 21 ft wide.

Who owns 7th Rd. 6.0-R.6 over Trib. to Big Blue River?

It is owned by the County Highway Agency.