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)

GRNVLE RND VLY RD

Fair

Over: NORTH CANYON CREEK

0.8 MI S OF SH 89, Plumas, CA

Built 1957 Load: 38.6 t ADT: 110

BECKWRTH-GENESSEE

Fair

Over: RED CLOVER CREEK

3 MI S OF BIG INDIAN CRRD, Plumas, CA

Built 1962 Load: 38.9 t ADT: 10

DIAMOND MTN RD

Fair

Over: LIGHTS CREEK

9.4 MI NE BECKWRTH-GRN RD, Plumas, CA

Built 1997 Load: 39.2 t ADT: 80

STAMPFLI LN

Fair

Over: INDIAN CREEK

0.6 MI E OF SR 89, Plumas, CA

Built 1954 Load: 39.9 t ADT: 370

PORT WINE ROAD

Fair

Over: SLATE CREEK OVERFLOW

2 MI SE/O QUIN-LAPORT RD, Plumas, CA

Built 1936 Load: 40.5 t ADT: 30

1ST AVENUE

Fair

Over: NORTH FORK FEATHER RIVER

0.1 MI S OF S.H. 36, Plumas, CA

Built 1947 Load: 40.8 t ADT: 960

STAMPFLI LANE

Fair

Over: INDIAN CREEK

2.9 MI E SR 89, Plumas, CA

Built 1965 Load: 41.1 t ADT: 400

RICH GULCH RD

Fair

Over: RUSH CREEK

0.4 MI N OF SR 70, Plumas, CA

Built 1955 Load: 41.1 t ADT: 30

HUMBUG ROAD

Fair

Over: BUTT CREEK

1.2 MI W HUMBG-HUMBLT RD, Plumas, CA

Built 1960 Load: 42.4 t ADT: 35

DIXIE CNYN RD

Fair

Over: ROUND VALLEY LAKE OUTLET

2.9 MI SW OF SH 89, Plumas, CA

Built 1930 Load: 42.4 t ADT: 55

ROAD 21N02

Fair

Over: SULPHUR CREEK

SULPHUR CREEK, Plumas, CA

Built 1964 Load: 42.8 t ADT: 50

STATE ROUTE 70

Fair

Over: INDIAN CREEK

02-PLU-070-33.07, Plumas, CA

Built 1954 Load: 43.1 t ADT: 3,375

BUCKS LAKE ROAD

Fair

Over: ROCK CREEK

4.3 MI W/O SR 70, Plumas, CA

Built 1969 Load: 43.4 t ADT: 1,700

BECKWRTH-GEHN RD

Fair

Over: INDIAN CREEK

400 FT S OF INDIAN CR RD, Plumas, CA

Built 1956 Load: 46.3 t ADT: 10

ST LOUIS RD

Fair

Over: SLATE CREEK

AT PLUMAS CO LINE, Plumas, CA

Built 1990 Load: 47.3 t ADT: 50

BECKWORTH CALPINE

Fair

Over: MIDDLE FORK FEATHER RIV

0.2 MI SOUTH OF SH 70, Plumas, CA

Built 1961 Load: 48.9 t ADT: 1,090

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

0.8 MI E BCKWRTH-CALPN RD, Plumas, CA

Built 1959 Load: 48.9 t ADT: 22

HUMBOLDT ROAD

Fair

Over: SOLDIERS MEADOW CREEK

5.0 MI W OF SH 89, Plumas, CA

Built 1970 Load: 49.9 t ADT: 40

DIAMOND MTN RD

Fair

Over: LIGHTS CREEK

4.9 MI NE GRNVLE-BECK RD, Plumas, CA

Built 1956 Load: 58.6 t ADT: 70

NO DATA ENTERED

Good

Over: WEST BRANCH LIGHTS CREEK

NO DATA ENTERED, Plumas, CA

Built 2022 ADT: 2

ROAD 23N08

Good

Over: POPLAR CREEK

POPLAR CREEK, Plumas, CA

Built 1966 ADT: 50

ROAD 24N85Y

Good

Over: BIG GRIZZLY CREEK

BIG GRIZZLY CREEK, Plumas, CA

Built 1974 ADT: 50

ROAD 22N94

Good

Over: SOUTH BR MIDDLE FORK

NO DATA ENTERED, Plumas, CA

Built 1957 ADT: 60

ROAD 22N94

Good

Over: LGV DAM SPILLWAY APPROCH

500 FT NORTH OF LGV DAM, Plumas, CA

Built 1966 ADT: 50

ROAD 23N10

Good

Over: EAST BRANCH HOPKINS CREK

NO DATA ENTERED, Plumas, CA

Built 1984 ADT: 50

ROAD 22N57

Good

Over: LOWER KENZIE RAVINE

NO DATA ENTERED, Plumas, CA

Built 1960 ADT: 40

ROAD 27N26

Good

Over: MOSQUITO CREEK

CARIBOU ROAD, Plumas, CA

Built 1984 ADT: 50

ROAD 27N17

Good

Over: RUSH CREEK

RUSH CREEK, Plumas, CA

Built 1977 ADT: 25

GREENVILLE PARK RD

Good

Over: WOLF CREEK

0.1 MI S HOT SPRINGS RD, Plumas, CA

Built 1987 Load: 13.9 t ADT: 50

ARLINGTON RD

Good

Over: INDIAN CREEK

0.1 MI W/O BCKW-GRNV RD, Plumas, CA

Built 1964 Load: 19.4 t ADT: 280

21N10 IN L.B. CG

Good

Over: GRAY EAGLE CK

WITHIN CAMPGROUND, Plumas, CA

Built 1995 Load: 20.7 t ADT: 50

ROAD 26N04

Good

Over: LAST CHANCE CREEK

LAST CHANCE CREEK, Plumas, CA

Built 1973 Load: 21.1 t ADT: 50

STATE ROUTE 70

Good

Over: NORTH FORK FEATHER RIVER

02-PLU-070-5.58, Plumas, CA

Built 1936 Load: 22.4 t ADT: 1,345

ARLINGTON RD

Good

Over: INDIAN CREEK

0.1 MI E/O SR 89, Plumas, CA

Built 1964 Load: 22.7 t ADT: 780

STATE ROUTE 89

Good

Over: GRAEAGLE CREEK

02-PLU-089-7.29, Plumas, CA

Built 1954 Load: 24.3 t ADT: 2,025

STATE ROUTE 70

Good

Over: CLEAR STREAM

02-PLU-070-42.86, Plumas, CA

Built 1937 Load: 24.3 t ADT: 6,700

ROAD 26N70

Good

Over: DIXIE CREEK

DIXIE CREEK, Plumas, CA

Built 2002 Load: 24.6 t ADT: 150

STATE ROUTE 70

Good

Over: UP RR & BNSF RY

02-PLU-070-35.56, Plumas, CA

Built 1932 Load: 25.9 t ADT: 3,375

STATE ROUTE 147

Good

Over: HAMILTON BRANCH CREEK

02-PLU-147-8.98, Plumas, CA

Built 2018 Load: 26.9 t ADT: 1,525

SLOAT ROAD

Good

Over: LONG VALLEY CREEK

1.2 MI S/W SH 70, Plumas, CA

Built 1989 Load: 26.9 t ADT: 180

STATE ROUTE 36

Good

Over: BAILEY CREEK

02-PLU-036-R13.73, Plumas, CA

Built 1966 Load: 28.5 t ADT: 5,000

STATE ROUTE 89

Good

Over: FRAZIER CREEK

02-PLU-089-6.29, Plumas, CA

Built 1954 Load: 29.5 t ADT: 1,015

STATE ROUTE 70

Good

Over: CHAMBERS CREEK

02-PLU-070-9.04, Plumas, CA

Built 1959 Load: 32.4 t ADT: 1,345

STATE ROUTE 89

Good

Over: SULPHUR CREEK

02-PLU-089-3.40, Plumas, CA

Built 2002 Load: 32.4 t ADT: 1,015

STATE ROUTE 89

Good

Over: BNSF RY

02-PLU-089-19.90, Plumas, CA

Built 1988 Load: 32.4 t ADT: 3,050

STATE ROUTE 89

Good

Over: WOLF CREEK

02-PLU-089-20.01, Plumas, CA

Built 1988 Load: 32.4 t ADT: 3,050

STATE ROUTE 70

Good

Over: GREENHORN CR, UP RR,BNSF

02-PLU-070-51.21, Plumas, CA

Built 1956 Load: 32.4 t ADT: 3,425

STATE ROUTE 284

Good

Over: LITTLE LAST CHANCE CREEK

02-PLU-284-7.01, Plumas, CA

Built 2000 Load: 32.4 t ADT: 640

STATE ROUTE 70

Good

Over: YELLOW CREEK

02-PLU-070-14.90, Plumas, CA

Built 2020 Load: 32.4 t ADT: 1,345

STATE ROUTE 89

Good

Over: LAKE ALMANOR SPILLWAY

02-PLU-089-29.97, Plumas, CA

Built 2018 Load: 32.4 t ADT: 1,150

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.