US Bridges

County RD 337 over Warm Fk of Spring

FairPosted for load

Oregon County, Missouri · S 6 T 22 N R 5 W · Structure no. 18322

Built
1948
77 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
60
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 337 over Warm Fk of Spring is a steel stringer/multi-beam or girder carrying County RD 337 over Warm Fk of Spring in Oregon County, Missouri. It was built in 1948, so it is 77 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 72 by 2044. The structure is 61 ft (18.6 m) long and 20 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesCounty RD 337
CrossesWarm Fk of Spring
LocationS 6 T 22 N R 5 W
RouteCounty Highway 181
CountyOregon County
StateMissouri
Coordinates36.5932, -91.5471
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18.8 US tons
Inventory rating8.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length61 ft (18.6 m)
Longest span57 ft (17.4 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2024)
Projected traffic72 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$472,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 337 over Warm Fk of Spring built?

It was built in 1948, making it 77 years old in 2025.

What condition is County RD 337 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 337 over Warm Fk of Spring carry?

About 60 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 337 over Warm Fk of Spring?

The structure is 61 ft (18.6 m) long with a longest span of 57 ft (17.4 m) and a deck 20 ft wide.

Who owns County RD 337 over Warm Fk of Spring?

It is owned by the County Highway Agency.