US Bridges

Arrowhead Rd. over Little Arkansas River

FairPosted for load

McPherson County, Kansas · 2.0S 4.9W of Inman · Structure no. 000590763205480

Built
1975
50 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
123 ft
4 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

Arrowhead Rd. over Little Arkansas River is a prestressed concrete tee beam carrying Arrowhead Rd. over Little Arkansas River 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 6% of them trucks, projected to reach 61 by 2040. The structure is 123 ft (37.4 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesArrowhead Rd.
CrossesLittle Arkansas River
Location2.0S 4.9W of Inman
RouteCounty Highway 0
CountyMcPherson County
StateKansas
Coordinates38.2025, -97.86426
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.8 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckNot applicable
Main spans4
Design loadH 20
Structure length123 ft (37.4 m)
Longest span30 ft (9.2 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2022)
Projected traffic61 by 2040
Trucks6%
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 Arrowhead Rd. over Little Arkansas River built?

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

What condition is Arrowhead Rd. over Little Arkansas 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 September 2024.

How much traffic does Arrowhead Rd. over Little Arkansas River carry?

About 50 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Arrowhead Rd. over Little Arkansas River?

The structure is 123 ft (37.4 m) long with a longest span of 30 ft (9.2 m) and a deck 30 ft wide.

Who owns Arrowhead Rd. over Little Arkansas River?

It is owned by the County Highway Agency.