US Bridges

1st. Ave. over Little Arkansas River

Fair

McPherson County, Kansas · 7.0W 1.3N of Inman · Structure no. 000590759005407

Built
1982
43 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
153 ft
3 main spans
Daily traffic
35
2020 count
Owner
County
County Highway Agency

About this bridge

1st. Ave. over Little Arkansas River is a concrete continuous tee beam carrying 1st. Ave. over Little Arkansas River in McPherson County, Kansas. It was built in 1982, so it is 43 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 35 vehicles a day, roughly 6% of them trucks, projected to reach 43 by 2040. The structure is 153 ft (46.5 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries1st. Ave.
CrossesLittle Arkansas River
Location7.0W 1.3N of Inman
RouteCounty Highway 0
CountyMcPherson County
StateKansas
Coordinates38.25094, -97.90363
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.5 m)
Longest span60 ft (18.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic35 (2020)
Projected traffic43 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 1st. Ave. over Little Arkansas River built?

It was built in 1982, making it 43 years old in 2025.

What condition is 1st. Ave. 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 October 2024.

How much traffic does 1st. Ave. over Little Arkansas River carry?

About 35 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is 1st. Ave. over Little Arkansas River?

The structure is 153 ft (46.5 m) long with a longest span of 60 ft (18.2 m) and a deck 28 ft wide.

Who owns 1st. Ave. over Little Arkansas River?

It is owned by the County Highway Agency.