US Bridges

US56 HWY over Cimarron River

Fair

Haskell County, Kansas · 0.62 MI NE Seward Coln · Structure no. 999905600410011

Built
1966
59 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
1,399 ft
4 main spans
Daily traffic
1,457
2023 count
Owner
State
State Highway Agency

About this bridge

US56 HWY over Cimarron River is a concrete continuous tee beam carrying US56 HWY over Cimarron River in Haskell County, Kansas. It was built in 1966, so it is 59 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 1,457 vehicles a day, roughly 24% of them trucks, projected to reach 1,516 by 2044. The structure is 1,399 ft (426.3 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesUS56 HWY
CrossesCimarron River
Location0.62 MI NE Seward Coln
RouteU.S. Route 56
CountyHaskell County
StateKansas
Coordinates37.39306, -101.0475
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.9 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4 (+3 approach)
Design loadH 20
Structure length1,399 ft (426.3 m)
Longest span72 ft (21.9 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,457 (2023)
Projected traffic1,516 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 US56 HWY over Cimarron River built?

It was built in 1966, making it 59 years old in 2025.

What condition is US56 HWY over Cimarron 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 August 2024.

How much traffic does US56 HWY over Cimarron River carry?

About 1,457 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US56 HWY over Cimarron River?

The structure is 1,399 ft (426.3 m) long with a longest span of 72 ft (21.9 m) and a deck 33 ft wide.

Who owns US56 HWY over Cimarron River?

It is owned by the State Highway Agency.