US Bridges

Rs 304 W 85th N over Trib. Big Ditch Floodway

Fair

Sedgwick County, Kansas · 85THN 0.7 E of 71STW · Structure no. 000000000871460

Built
1977
48 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
22 ft
3 main spans
Daily traffic
1,788
2022 count
Owner
County
County Highway Agency

About this bridge

Rs 304 W 85th N over Trib. Big Ditch Floodway is a steel culvert carrying Rs 304 W 85th N over Trib. Big Ditch Floodway in Sedgwick County, Kansas. It was built in 1977, so it is 48 years old, younger 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 1,788 vehicles a day, roughly 7% of them trucks, projected to reach 2,182 by 2044. The structure is 22 ft (6.7 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRs 304 W 85th N
CrossesTrib. Big Ditch Floodway
Location85THN 0.7 E of 71STW
RouteCounty Highway 304
CountySedgwick County
StateKansas
Coordinates37.83949, -97.41478
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.1 US tons
Inventory rating52.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckOther
Main spans3
Design loadH 20
Structure length22 ft (6.7 m)
Longest span6 ft (1.8 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,788 (2022)
Projected traffic2,182 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 304 W 85th N over Trib. Big Ditch Floodway built?

It was built in 1977, making it 48 years old in 2025.

What condition is Rs 304 W 85th N over Trib. Big Ditch Floodway 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 August 2023.

How much traffic does Rs 304 W 85th N over Trib. Big Ditch Floodway carry?

About 1,788 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Rs 304 W 85th N over Trib. Big Ditch Floodway?

The structure is 22 ft (6.7 m) long with a longest span of 6 ft (1.8 m) and a deck 38 ft wide.

Who owns Rs 304 W 85th N over Trib. Big Ditch Floodway?

It is owned by the County Highway Agency.