US Bridges

US40 Bs over Smoky Hill River

Good

Geary County, Kansas · 1.32 MI E - Washington ST · Structure no. 9999040B0310371

Built
1947
78 years old, rebuilt 2000
Condition
Good
inspected January 2025
Type
Girder and Floorbeam System
Steel Continuous
Length
564 ft
4 main spans
Daily traffic
8,242
2023 count
Owner
State
State Highway Agency

About this bridge

US40 Bs over Smoky Hill River is a steel continuous girder and floorbeam system carrying US40 Bs over Smoky Hill River in Geary County, Kansas. It was built in 1947 and reconstructed in 2000, so it is 78 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 8,242 vehicles a day, roughly 5% of them trucks, projected to reach 9,666 by 2044. The structure is 564 ft (171.8 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS40 Bs
CrossesSmoky Hill River
Location1.32 MI E - Washington ST
RouteU.S. Route 40
StateKansas
Coordinates39.02806, -96.80472
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating91.6 US tons
Inventory rating55 US tons

Structure

MaterialSteel Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length564 ft (171.8 m)
Longest span160 ft (48.8 m)
Deck width56 ft (17.2 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,242 (2023)
Projected traffic9,666 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 US40 Bs over Smoky Hill River built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 2000.

What condition is US40 Bs over Smoky Hill 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 January 2025.

How much traffic does US40 Bs over Smoky Hill River carry?

About 8,242 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US40 Bs over Smoky Hill River?

The structure is 564 ft (171.8 m) long with a longest span of 160 ft (48.8 m) and a deck 56 ft wide.

Who owns US40 Bs over Smoky Hill River?

It is owned by the State Highway Agency.