US Bridges

K148 HWY over Little Blue River

Fair

Washington County, Kansas · 4.92 MI N K9 · Structure no. 999914801010181

Built
1954
71 years old, rebuilt 1998
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
663 ft
7 main spans
Daily traffic
584
2023 count
Owner
State
State Highway Agency

About this bridge

K148 HWY over Little Blue River is a steel continuous stringer/multi-beam or girder carrying K148 HWY over Little Blue River in Washington County, Kansas. It was built in 1954 and reconstructed in 1998, so it is 71 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 584 vehicles a day, roughly 14% of them trucks, projected to reach 868 by 2044. The structure is 663 ft (202.2 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesK148 HWY
CrossesLittle Blue River
Location4.92 MI N K9
RouteState Highway 148
StateKansas
Coordinates39.77722, -96.86278
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

MaterialSteel Continuous
DeckNot applicable
Main spans7
Design loadH 15
Structure length663 ft (202.2 m)
Longest span100 ft (30.5 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic584 (2023)
Projected traffic868 by 2044
Trucks14%
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 K148 HWY over Little Blue River built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1998.

What condition is K148 HWY over Little Blue 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 February 2024.

How much traffic does K148 HWY over Little Blue River carry?

About 584 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is K148 HWY over Little Blue River?

The structure is 663 ft (202.2 m) long with a longest span of 100 ft (30.5 m) and a deck 28 ft wide.

Who owns K148 HWY over Little Blue River?

It is owned by the State Highway Agency.