US Bridges

Rs 450 783-474.4 over Local Drainage

Fair

Saline County, Kansas · S. Edge of Smolan · Structure no. 000000000850280

Built
1940
85 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
557
2020 count
Owner
County
County Highway Agency

About this bridge

Rs 450 783-474.4 over Local Drainage is a concrete culvert carrying Rs 450 783-474.4 over Local Drainage in Saline County, Kansas. It was built in 1940, so it is 85 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 557 vehicles a day, roughly 6% of them trucks, projected to reach 742 by 2043. The structure is 32 ft (9.7 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRs 450 783-474.4
CrossesLocal Drainage
LocationS. Edge of Smolan
RouteCounty Highway 450
CountySaline County
StateKansas
Coordinates38.73259, -97.68705
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length32 ft (9.7 m)
Longest span10 ft (3 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic557 (2020)
Projected traffic742 by 2043
Trucks6%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$100,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 450 783-474.4 over Local Drainage built?

It was built in 1940, making it 85 years old in 2025.

What condition is Rs 450 783-474.4 over Local Drainage 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 February 2023.

How much traffic does Rs 450 783-474.4 over Local Drainage carry?

About 557 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Rs 450 783-474.4 over Local Drainage?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns Rs 450 783-474.4 over Local Drainage?

It is owned by the County Highway Agency.