US Bridges

Rs 320 142 C1 over Illinois Creek

Fair

Jackson County, Kansas · 4.0N 1.9W of Delia · Structure no. 000000000430080

Built
1970
55 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
79
2018 count
Owner
County
County Highway Agency

About this bridge

Rs 320 142 C1 over Illinois Creek is a concrete culvert carrying Rs 320 142 C1 over Illinois Creek in Jackson County, Kansas. It was built in 1970, so it is 55 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.

It carries about 79 vehicles a day, projected to reach 85 by 2044. The structure is 21 ft (6.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRs 320 142 C1
CrossesIllinois Creek
Location4.0N 1.9W of Delia
RouteCounty Highway 320
CountyJackson County
StateKansas
Coordinates39.30357, -95.9925
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.4 m)
Longest span10 ft (2.9 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic79 (2018)
Projected traffic85 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 320 142 C1 over Illinois Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Rs 320 142 C1 over Illinois 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 January 2025.

How much traffic does Rs 320 142 C1 over Illinois Creek carry?

About 79 vehicles per day (2018 count).

How long is Rs 320 142 C1 over Illinois Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (2.9 m) and a deck 33 ft wide.

Who owns Rs 320 142 C1 over Illinois Creek?

It is owned by the County Highway Agency.