US Bridges

Rich Bar RD over E Br N Fk Feather River

FairPosted for load

Plumas County, California · 0.3 MI S of SH 70 · Structure no. 09C0041

Built
1932
93 years old
Condition
Fair
inspected September 2023
Type
Truss - Thru
Steel
Length
118 ft
1 main span
Daily traffic
10
2019 count
Owner
County
County Highway Agency

About this bridge

Rich Bar RD over E Br N Fk Feather River is a steel truss - thru carrying Rich Bar RD over E Br N Fk Feather River in Plumas County, California. It was built in 1932, so it is 93 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 20 by 2044. The structure is 118 ft (36 m) long and 13 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesRich Bar RD
CrossesE Br N Fk Feather River
Location0.3 MI S of SH 70
RouteCounty Highway 0
CountyPlumas County
StateCalifornia
Coordinates40.00932, -121.19297
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.4 US tons
Inventory rating15.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1 (+2 approach)
Design loadUnknown
Structure length118 ft (36 m)
Longest span85 ft (25.9 m)
Deck width13 ft (3.9 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2019)
Projected traffic20 by 2044
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$540,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rich Bar RD over E Br N Fk Feather River built?

It was built in 1932, making it 93 years old in 2025.

What condition is Rich Bar RD over E Br N Fk Feather River 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 Rich Bar RD over E Br N Fk Feather River carry?

About 10 vehicles per day (2019 count).

How long is Rich Bar RD over E Br N Fk Feather River?

The structure is 118 ft (36 m) long with a longest span of 85 ft (25.9 m) and a deck 13 ft wide.

Who owns Rich Bar RD over E Br N Fk Feather River?

It is owned by the County Highway Agency.