Plumas County, CA

170 public highway bridges

Plumas County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Plumas County, California contains 170 public highway bridges. Roughly 25.9% are rated “Good,” 67.1% “Fair,” and 4.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

170
Total Bridges
25.9%
Good
67.1%
Fair
4.1%
Poor Condition

Condition Distribution

Good
25.9% (44)
Fair
67.1% (114)
Poor
4.1% (7)

All Bridges (170)

JOHNSVILLE ROAD

Good

Over: JAMISON CREEK

5.1 MI W SH 89, Plumas, CA

Built 2003 Load: 32.4 t ADT: 560

CR 413 SPN RCH RD

Good

Over: SPANISH CREEK

0.1 MI N BUCKS LAKE RD, Plumas, CA

Built 2021 Load: 32.4 t ADT: 80

COUNTY ROAD 322A

Good

Over: BAILEY CREEK

W OF CR 322, N OF CA 36, Plumas, CA

Built 2016 Load: 32.4 t ADT: 25

CHSTR-WARNER VLYRD

Good

Over: WARNER CREEK

C.R. 312, Plumas, CA

Built 2011 Load: 32.4 t ADT: 280

NO DATA ENTERED

Good

Over: JACKASS CREEK

NO DATA ENTERED, Plumas, CA

Built 2017 Load: 33.0 t ADT: 50

STATE ROUTE 70

Good

Over: HUMBUG CREEK

02-PLU-070-73.99, Plumas, CA

Built 1969 Load: 34.0 t ADT: 6,200

ROAD 28N03

Good

Over: LAST CHANCE CREEK

LAST CHANCE CREEK, Plumas, CA

Built 1975 Load: 37.6 t ADT: 50

BECKWOURTH-GENESEE

Good

Over: CROCKER CREEK

6.8 MI NORTH OF RTE 70, Plumas, CA

Built 2016 Load: 38.6 t ADT: 200

ROAD 24N28

Good

Over: ROCK CREEK

ROCK CREEK, Plumas, CA

Built 1956 Load: 46.7 t ADT: 50

STATE ROUTE 70

Good

Over: RUSH CREEK

02-PLU-070-23.67, Plumas, CA

Built 1932 Load: 49.2 t ADT: 1,345

STATE ROUTE 36

Good

Over: CHESTER FLOOD CNTRL CHAN

02-PLU-036-6.47, Plumas, CA

Built 1975 Load: 51.2 t ADT: 3,550

DIAMOND MTN RD

Good

Over: LIGHTS CREEK

8.2 MI NE BECKWRTH-GRN RD, Plumas, CA

Built 1970 Load: 68.4 t ADT: 80

STATE ROUTE 70

Good

Over: GRIZZLY CREEK

02-PLU-070-0.67, Plumas, CA

Built 1936 Load: 75.5 t ADT: 1,345

ROAD 23N37

Poor

Over: EUREKA CREEK

EUREKA CREEK, Plumas, CA

Built 1942 ADT: 50

GULLING STREET

Poor

Over: MIDDLE FORK FEATHER RIV

0.2 MI S SH 70, Plumas, CA

Built 1954 Load: 3.2 t ADT: 10,046

ROAD 24N28

Poor

Over: SLATE CREEK

SLATE CREEK, Plumas, CA

Built 1956 Load: 13.9 t ADT: 50

ACTUALLY RD 28N03

Poor

Over: INDIAN CREEK

NO DATA ENTERED, Plumas, CA

Built 1965 Load: 23.3 t ADT: 50

ROAD 28N03

Poor

Over: INDIAN CREEK

INDIAN CREEK, Plumas, CA

Built 1965 Load: 23.3 t ADT: 50

DYSON LANE

Poor

Over: MID FK FEATHER RIV OVRFL

2.16 MI E BCKWTH-CLPIN RD, Plumas, CA

Built 1959 Load: 25.3 t ADT: 45

DYSON LANE

Poor

Over: MID FK FEATHER RIV OVRFL

2.23 MI E BCKWTH-CLPIN RD, Plumas, CA

Built 1959 Load: 25.3 t ADT: 45

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.