US Bridges

US56 HWY over Little Arkansas River

Fair

Rice County, Kansas · 1.38 MI E K46 · Structure no. 999905600800141

Built
1956
69 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
3,191
2023 count
Owner
State
State Highway Agency

About this bridge

US56 HWY over Little Arkansas River is a concrete continuous slab carrying US56 HWY over Little Arkansas River in Rice County, Kansas. It was built in 1956, so it is 69 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.

It carries about 3,191 vehicles a day, roughly 24% of them trucks, projected to reach 3,742 by 2044. The structure is 133 ft (40.4 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS56 HWY
CrossesLittle Arkansas River
Location1.38 MI E K46
RouteU.S. Route 56
StateKansas
Coordinates38.37667, -97.99111
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length133 ft (40.4 m)
Longest span52 ft (15.8 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,191 (2023)
Projected traffic3,742 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US56 HWY over Little Arkansas River built?

It was built in 1956, making it 69 years old in 2025.

What condition is US56 HWY 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 November 2024.

How much traffic does US56 HWY over Little Arkansas River carry?

About 3,191 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US56 HWY over Little Arkansas River?

The structure is 133 ft (40.4 m) long with a longest span of 52 ft (15.8 m) and a deck 33 ft wide.

Who owns US56 HWY over Little Arkansas River?

It is owned by the State Highway Agency.