US Bridges

279th Minor Col over S. Fork Big Slough

Poor

Sedgwick County, Kansas · 279THW 0.3 N of 61STN · Structure no. 000870785006028

Built
1999
26 years old
Condition
Poor
inspected April 2023
Type
Slab
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
325
2022 count
Owner
County
County Highway Agency

About this bridge

279th Minor Col over S. Fork Big Slough is a concrete continuous slab carrying 279th Minor Col over S. Fork Big Slough in Sedgwick County, Kansas. It was built in 1999, so it is 26 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 325 vehicles a day, roughly 7% of them trucks, projected to reach 397 by 2044. The structure is 142 ft (43.4 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries279th Minor Col
CrossesS. Fork Big Slough
Location279THW 0.3 N of 61STN
RouteCounty Highway 0
StateKansas
Coordinates37.79669, -97.66333
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating74.5 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length142 ft (43.4 m)
Longest span55 ft (16.7 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 traffic325 (2022)
Projected traffic397 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$280,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 279th Minor Col over S. Fork Big Slough built?

It was built in 1999, making it 26 years old in 2025.

What condition is 279th Minor Col over S. Fork Big Slough in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does 279th Minor Col over S. Fork Big Slough carry?

About 325 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is 279th Minor Col over S. Fork Big Slough?

The structure is 142 ft (43.4 m) long with a longest span of 55 ft (16.7 m) and a deck 30 ft wide.

Who owns 279th Minor Col over S. Fork Big Slough?

It is owned by the County Highway Agency.