US Bridges

94th over Big Slough Creek

FairPosted for load

Jefferson County, Kansas · 2.0E of Oskaloosa · Structure no. 000000000440040

Built
1958
67 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
94 ft
3 main spans
Daily traffic
60
2019 count
Owner
County
County Highway Agency

About this bridge

94th over Big Slough Creek is a concrete continuous tee beam carrying 94th over Big Slough Creek in Jefferson County, Kansas. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, roughly 5% of them trucks, projected to reach 273 by 2040. The structure is 94 ft (28.5 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries94th
CrossesBig Slough Creek
Location2.0E of Oskaloosa
RouteCounty Highway 1688
StateKansas
Coordinates39.21618, -95.27345
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38 US tons
Inventory rating22.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length94 ft (28.5 m)
Longest span35 ft (10.6 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic60 (2019)
Projected traffic273 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 94th over Big Slough Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is 94th over Big Slough 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 94th over Big Slough Creek carry?

About 60 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is 94th over Big Slough Creek?

The structure is 94 ft (28.5 m) long with a longest span of 35 ft (10.6 m) and a deck 27 ft wide.

Who owns 94th over Big Slough Creek?

It is owned by the County Highway Agency.