US Bridges

US 50 HWY over Diamond Creek

Good

Chase County, Kansas · 2.79 MI NE K150 HWY · Structure no. 999905000090481

Built
1975
50 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
214 ft
4 main spans
Daily traffic
5,315
2023 count
Owner
State
State Highway Agency

About this bridge

US 50 HWY over Diamond Creek is a prestressed concrete continuous tee beam carrying US 50 HWY over Diamond Creek in Chase County, Kansas. It was built in 1975, so it is 50 years old, younger 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 5,315 vehicles a day, roughly 51% of them trucks, projected to reach 6,485 by 2044. The structure is 214 ft (65.1 m) long and 46 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 50 HWY
CrossesDiamond Creek
Location2.79 MI NE K150 HWY
RouteU.S. Route 50
StateKansas
Coordinates38.39389, -96.62639
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.4 US tons
Inventory rating40.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length214 ft (65.1 m)
Longest span53 ft (16.2 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,315 (2023)
Projected traffic6,485 by 2044
Trucks51%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 US 50 HWY over Diamond Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is US 50 HWY over Diamond Creek 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 October 2023.

How much traffic does US 50 HWY over Diamond Creek carry?

About 5,315 vehicles per day (2023 count), of which roughly 51% are trucks.

How long is US 50 HWY over Diamond Creek?

The structure is 214 ft (65.1 m) long with a longest span of 53 ft (16.2 m) and a deck 46 ft wide.

Who owns US 50 HWY over Diamond Creek?

It is owned by the State Highway Agency.