US Bridges

Road 24N05 over Red Clover Creek

Fair

Plumas County, California · No Data Entered · Structure no. 051151000001003

Built
1954
71 years old, rebuilt 1988
Condition
Fair
inspected September 2023
Type
Girder and Floorbeam System
Steel
Length
52 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road 24N05 over Red Clover Creek is a steel girder and floorbeam system carrying Road 24N05 over Red Clover Creek in Plumas County, California. It was built in 1954 and reconstructed in 1988, so it is 71 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 52 ft (15.8 m) long and 15 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesRoad 24N05
CrossesRed Clover Creek
LocationNo Data Entered
RouteFederal Lands Road 25N05
Coordinates39.968, -120.52063
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation*: *
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating—
Inventory rating—

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road 24N05 over Red Clover Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1988.

What condition is Road 24N05 over Red Clover 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 September 2023.

How much traffic does Road 24N05 over Red Clover Creek carry?

About 50 vehicles per day (latest count).

How long is Road 24N05 over Red Clover Creek?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 15 ft wide.

Who owns Road 24N05 over Red Clover Creek?

It is owned by the U.S. Forest Service.