US Bridges

K-147 over Smoky Hill River

Good

Trego County, Kansas · Cedar Bluff Spillway · Structure no. 999914700980561

Built
2021
4 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
157 ft
1 main span
Daily traffic
292
2023 count
Owner
State
State Highway Agency

About this bridge

K-147 over Smoky Hill River is a steel stringer/multi-beam or girder carrying K-147 over Smoky Hill River in Trego County, Kansas. It was built in 2021, so it is 4 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 292 vehicles a day, roughly 36% of them trucks, projected to reach 298 by 2044. The structure is 157 ft (47.8 m) long and 27 ft wide.

CarriesK-147
CrossesSmoky Hill River
LocationCedar Bluff Spillway
RouteState Highway 147
StateKansas
Coordinates38.77972, -99.72083
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating62.8 US tons
Inventory rating48.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length157 ft (47.8 m)
Longest span153 ft (46.6 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic292 (2023)
Projected traffic298 by 2044
Trucks36%
Lanes on structure2
Traffic directionHighway traffic not carried
CarriesHighway
CrossesWaterway
Detour if closed—
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 K-147 over Smoky Hill River built?

It was built in 2021, making it 4 years old in 2025.

What condition is K-147 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 April 2023.

How much traffic does K-147 over Smoky Hill River carry?

About 292 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is K-147 over Smoky Hill River?

The structure is 157 ft (47.8 m) long with a longest span of 153 ft (46.6 m) and a deck 27 ft wide.

Who owns K-147 over Smoky Hill River?

It is owned by the State Highway Agency.