US Bridges

Rs 604 11th S over Trib. to Ninnescah River

Poor

Sedgwick County, Kansas · 111THS 0.6 E of 247THW · Structure no. 000000000871390

Built
1975
50 years old
Condition
Poor
inspected July 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
447
2022 count
Owner
County
County Highway Agency

About this bridge

Rs 604 11th S over Trib. to Ninnescah River is a concrete culvert carrying Rs 604 11th S over Trib. to Ninnescah River in Sedgwick County, Kansas. It was built in 1975, so it is 50 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 447 vehicles a day, roughly 9% of them trucks, projected to reach 545 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

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CarriesRs 604 11th S
CrossesTrib. to Ninnescah River
Location111THS 0.6 E of 247THW
RouteCounty Highway 604
CountySedgwick County
StateKansas
Coordinates37.48949, -97.6138
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.8 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length22 ft (6.7 m)
Longest span10 ft (2.9 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic447 (2022)
Projected traffic545 by 2044
Trucks9%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$150,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 604 11th S over Trib. to Ninnescah River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Rs 604 11th S over Trib. to Ninnescah River 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 July 2024.

How much traffic does Rs 604 11th S over Trib. to Ninnescah River carry?

About 447 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Rs 604 11th S over Trib. to Ninnescah River?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (2.9 m) and a deck 38 ft wide.

Who owns Rs 604 11th S over Trib. to Ninnescah River?

It is owned by the County Highway Agency.