US Bridges

County RD 326 over Trib Warm Fk Sprin

FairPosted for load

Oregon County, Missouri · S 17 T 22 N R 5 W · Structure no. 19492

Built
1940
85 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
20 ft
2 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 326 over Trib Warm Fk Sprin is a concrete slab carrying County RD 326 over Trib Warm Fk Sprin in Oregon County, Missouri. It was built in 1940, so it is 85 years old, older 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2044. The structure is 20 ft (6.1 m) long and 21 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty RD 326
CrossesTrib Warm Fk Sprin
LocationS 17 T 22 N R 5 W
RouteCounty Highway 222
CountyOregon County
StateMissouri
Coordinates36.5705, -91.5319
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating20.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length20 ft (6.1 m)
Longest span10 ft (3 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic60 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 326 over Trib Warm Fk Sprin built?

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

What condition is County RD 326 over Trib Warm Fk Sprin 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 326 over Trib Warm Fk Sprin carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 326 over Trib Warm Fk Sprin?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m) and a deck 21 ft wide.

Who owns County RD 326 over Trib Warm Fk Sprin?

It is owned by the County Highway Agency.