US Bridges

98th over Big Slough Creek

Good

Jefferson County, Kansas · 0.8N 0.9W of Oskaloosa · Structure no. 000441035104061

Built
2019
6 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

98th over Big Slough Creek is a concrete continuous slab carrying 98th over Big Slough Creek in Jefferson County, Kansas. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, projected to reach 25 by 2040. The structure is 122 ft (37.3 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries98th
CrossesBig Slough Creek
Location0.8N 0.9W of Oskaloosa
RouteCounty Highway 0
StateKansas
Coordinates39.2296, -95.32889
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating109 US tons
Inventory rating65.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length122 ft (37.3 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2040
Trucks0%
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 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 98th over Big Slough Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is 98th over Big Slough Creek 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 November 2024.

How much traffic does 98th over Big Slough Creek carry?

About 25 vehicles per day (2022 count).

How long is 98th over Big Slough Creek?

The structure is 122 ft (37.3 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns 98th over Big Slough Creek?

It is owned by the County Highway Agency.