US Bridges

County RD 323 over Warm Fk of Spring

Fair

Oregon County, Missouri · S 31 T 23 N R 5 W · Structure no. 18382

Built
1985
40 years old
Condition
Fair
inspected January 2024
Type
Culvert
Steel
Length
23 ft
8 main spans
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 323 over Warm Fk of Spring is a steel culvert carrying County RD 323 over Warm Fk of Spring in Oregon County, Missouri. It was built in 1985, so it is 40 years old, younger than the Missouri average of 45.1 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 36 by 2044. The structure is 23 ft (7 m) long and 15 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCounty RD 323
CrossesWarm Fk of Spring
LocationS 31 T 23 N R 5 W
RouteCounty Highway 183
CountyOregon County
StateMissouri
Coordinates36.6179, -91.559
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans8
Design loadOther
Structure length23 ft (7 m)
Longest span2 ft (0.6 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic36 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 County RD 323 over Warm Fk of Spring built?

It was built in 1985, making it 40 years old in 2025.

What condition is County RD 323 over Warm Fk of Spring 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 2024.

How much traffic does County RD 323 over Warm Fk of Spring carry?

About 30 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 323 over Warm Fk of Spring?

The structure is 23 ft (7 m) long with a longest span of 2 ft (0.6 m) and a deck 15 ft wide.

Who owns County RD 323 over Warm Fk of Spring?

It is owned by the County Highway Agency.