US Bridges

K106 HWY over Salt Creek

Fair

Ottawa County, Kansas · 5.97 MI N K18 · Structure no. 999910600720291

Built
1940
85 years old, rebuilt 1978
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
139 ft
3 main spans
Daily traffic
296
2023 count
Owner
State
State Highway Agency

About this bridge

K106 HWY over Salt Creek is a steel continuous stringer/multi-beam or girder carrying K106 HWY over Salt Creek in Ottawa County, Kansas. It was built in 1940 and reconstructed in 1978, so it is 85 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 296 vehicles a day, roughly 6% of them trucks, projected to reach 440 by 2044. The structure is 139 ft (42.4 m) long and 30 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesK106 HWY
CrossesSalt Creek
Location5.97 MI N K18
RouteState Highway 106
StateKansas
Coordinates39.1025, -97.72417
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to 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 alignment7: Better than present minimum criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length139 ft (42.4 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic296 (2023)
Projected traffic440 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 K106 HWY over Salt Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1978.

What condition is K106 HWY over Salt Creek 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 November 2024.

How much traffic does K106 HWY over Salt Creek carry?

About 296 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is K106 HWY over Salt Creek?

The structure is 139 ft (42.4 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns K106 HWY over Salt Creek?

It is owned by the State Highway Agency.