US Bridges

US81 HWY over Chikaskia River

GoodPosted for load

Sumner County, Kansas · 6.52 MI E K49 · Structure no. 999908100960441

Built
1958
67 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Concrete Continuous
Length
534 ft
10 main spans
Daily traffic
1,088
2023 count
Owner
State
State Highway Agency

About this bridge

US81 HWY over Chikaskia River is a concrete continuous tee beam carrying US81 HWY over Chikaskia River in Sumner County, Kansas. It was built in 1958, so it is 67 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for other load-capacity restriction.

It carries about 1,088 vehicles a day, roughly 24% of them trucks, projected to reach 1,110 by 2044. The structure is 534 ft (162.9 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS81 HWY
CrossesChikaskia River
Location6.52 MI E K49
RouteU.S. Route 81
StateKansas
Coordinates37.04083, -97.49139
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length534 ft (162.9 m)
Longest span72 ft (21.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,088 (2023)
Projected traffic1,110 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 SystemNo

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 US81 HWY over Chikaskia River built?

It was built in 1958, making it 67 years old in 2025.

What condition is US81 HWY over Chikaskia River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does US81 HWY over Chikaskia River carry?

About 1,088 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US81 HWY over Chikaskia River?

The structure is 534 ft (162.9 m) long with a longest span of 72 ft (21.9 m) and a deck 30 ft wide.

Who owns US81 HWY over Chikaskia River?

It is owned by the State Highway Agency.