US Bridges

US50 HWY over Arkansas River Drainage

Good

Hamilton County, Kansas · 1.77 MI E Colo. State LN · Structure no. 999905000380041

Built
1937
88 years old, rebuilt 1970
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
30 ft
4 main spans
Daily traffic
2,216
2023 count
Owner
State
State Highway Agency

About this bridge

US50 HWY over Arkansas River Drainage is a concrete culvert carrying US50 HWY over Arkansas River Drainage in Hamilton County, Kansas. It was built in 1937 and reconstructed in 1970, so it is 88 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.

It carries about 2,216 vehicles a day, roughly 24% of them trucks, projected to reach 2,261 by 2044. The structure is 30 ft (9.2 m) long and 55 ft wide.

CarriesUS50 HWY
CrossesArkansas River Drainage
Location1.77 MI E Colo. State LN
RouteU.S. Route 50
StateKansas
Coordinates38.04111, -102.01306
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating31 US tons
Inventory rating19 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length30 ft (9.2 m)
Longest span7 ft (2.1 m)
Deck width55 ft (16.8 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,216 (2023)
Projected traffic2,261 by 2044
Trucks24%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 US50 HWY over Arkansas River Drainage built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1970.

What condition is US50 HWY over Arkansas River Drainage 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 May 2023.

How much traffic does US50 HWY over Arkansas River Drainage carry?

About 2,216 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US50 HWY over Arkansas River Drainage?

The structure is 30 ft (9.2 m) long with a longest span of 7 ft (2.1 m) and a deck 55 ft wide.

Who owns US50 HWY over Arkansas River Drainage?

It is owned by the State Highway Agency.