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)

STATE ROUTE 70

Fair

Over: NORTH FORK FEATHER RIVER

02-PLU-070-6.99, Plumas, CA

Built 1936 Load: 24.3 t ADT: 1,345

STATE ROUTE 70

Fair

Over: GREENHORN CREEK

02-PLU-070-47.74, Plumas, CA

Built 1941 Load: 24.3 t ADT: 3,425

HARRIET LN

Fair

Over: MID FK FEATHER RIV OVRFL

1.4 MI S DYSON LN, Plumas, CA

Built 1963 Load: 24.3 t ADT: 125

N ARM ESIDE RD

Fair

Over: PETERS CREEK

3.8 MI NE OF BECKWRTH-GRD, Plumas, CA

Built 1955 Load: 24.3 t ADT: 100

STATE ROUTE 70

Fair

Over: BIG GRIZZLY CREEK

02-PLU-070-R78.64, Plumas, CA

Built 1969 Load: 24.6 t ADT: 3,400

CHANDLER ROAD

Fair

Over: SPANISH CR & GREENHRN CR

INTERSECT OAKLAND CAMP RD, Plumas, CA

Built 1953 Load: 24.6 t ADT: 520

HARRIET LANE

Fair

Over: MID FK FEATHER RIV OVRFL

1.2 MI S DYSON LN, Plumas, CA

Built 1963 Load: 24.9 t ADT: 125

HARRLET LN

Fair

Over: MID FK FEATHER RIV OVRFL

1.3 MI S DYSON LN, Plumas, CA

Built 1963 Load: 24.9 t ADT: 125

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

1.86 MI E BCKWTH-CLPIN RD, Plumas, CA

Built 1959 Load: 25.3 t ADT: 45

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

1.9 MI E BCKWRTH-CALPN RD, Plumas, CA

Built 1959 Load: 25.3 t ADT: 45

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

1.95 MI E BCKWTH-CLPIN RD, Plumas, CA

Built 1959 Load: 25.3 t ADT: 45

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

2.30 MI E BCKWTH-CLPIN RD, Plumas, CA

Built 1959 Load: 25.3 t ADT: 45

HARRIET LANE

Fair

Over: MID FK FEATHER RIV OVRFL

1.1 MI S DYSON LN, Plumas, CA

Built 1963 Load: 25.3 t ADT: 125

LAKE DAVIS ROAD

Fair

Over: LAKE DAVIS SPILLWAY

7.1 MI N/O SH 70, Plumas, CA

Built 1966 Load: 25.3 t ADT: 300

DRYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

2.5 MI E BCKWTH-CLPINE RD, Plumas, CA

Built 1962 Load: 25.6 t ADT: 45

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

2.55 MI E BCKWTH-CLPIN RD, Plumas, CA

Built 1962 Load: 25.6 t ADT: 45

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

2.6 MI E BCKWTH-CLPINE RD, Plumas, CA

Built 1962 Load: 25.6 t ADT: 45

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

2.65 MI E BCKWTH-CLPIN RD, Plumas, CA

Built 1962 Load: 25.6 t ADT: 22

ROUND HOUSE RD

Fair

Over: SPANISH CREEK

AT SH 70, Plumas, CA

Built 1940 Load: 26.2 t ADT: 60

STATE ROUTE 70

Fair

Over: NORTH FORK FEATHER RIVER

02-PLU-070-3.07, Plumas, CA

Built 1936 Load: 26.9 t ADT: 1,345

BECKWTH GRNVLE RD

Fair

Over: INDIAN CREEK

0.6 MI S BKWOTH GENESE RD, Plumas, CA

Built 1986 Load: 26.9 t ADT: 30

BECKWORTH GENESEE

Fair

Over: RED CLOVER CREEK

8.0 MI SE INDIAN CREEK RD, Plumas, CA

Built 1961 Load: 26.9 t ADT: 40

CLIO-STATE 40A RD

Fair

Over: MIDDLE FORK FEATHER RIV

0.1 MILE NORTH OF SR 89, Plumas, CA

Built 1953 Load: 27.2 t ADT: 570

WARNER VALLEY RD

Fair

Over: WARNER CREEK

9.1 MI NW OF SH 36, Plumas, CA

Built 1956 Load: 27.5 t ADT: 60

SPANISH RANCH RD

Fair

Over: SPANISH CREEK

INTERSECT BUCKS LAKE RD, Plumas, CA

Built 1962 Load: 28.8 t ADT: 50

GULLING STREET

Fair

Over: UP RR & BNSF RY

0.35 MI S SH 70, Plumas, CA

Built 1954 Load: 30.5 t ADT: 10,046

DYSON LANE

Fair

Over: MID FK FEATHER RIV OVRFL

0.9 MI E BCKWRTH-CALPN RD, Plumas, CA

Built 1959 Load: 31.8 t ADT: 22

BECKWOURTH GRNVLE

Fair

Over: LIGHTS CRK (DEADFALL BR)

JNCT DIAMOND MTN RD, Plumas, CA

Built 1947 Load: 32.1 t ADT: 345

STATE ROUTE 284

Fair

Over: LITTLE LAST CHANCE CREEK

02-PLU-284-5.60, Plumas, CA

Built 2000 Load: 32.4 t ADT: 640

STATE ROUTE 284

Fair

Over: LITTLE LAST CHANCE CREEK

02-PLU-284-7.31, Plumas, CA

Built 2000 Load: 32.4 t ADT: 640

STATE ROUTE 70

Fair

Over: SPANISH CREEK

02-PLU-070-35.32, Plumas, CA

Built 2012 Load: 32.4 t ADT: 3,375

MOHAWK HWY

Fair

Over: MIDDLE FORK FEATHER RIV

0.4 MI S/E OF S.H. 70, Plumas, CA

Built 1989 Load: 32.4 t ADT: 690

QUINCY-LA PORTE RD

Fair

Over: MIDDLE FORK FEATHER RIV

7.9 MI S/W SH 70, Plumas, CA

Built 1975 Load: 32.4 t ADT: 180

QUINCY-LA PORTE RD

Fair

Over: NELSON CREEK

10.4 MI SOUTH OF SH 70, Plumas, CA

Built 1986 Load: 32.4 t ADT: 180

MAIN STREET

Fair

Over: WOLF CREEK

0.2 MI SW SH 89, Plumas, CA

Built 1980 Load: 32.4 t ADT: 1,100

VIRGILIA ROAD

Fair

Over: E BR N FK FEATHER RIVER

0.1 MILE S OF SR 70, Plumas, CA

Built 1949 Load: 32.4 t ADT: 50

SENECA ROAD

Fair

Over: NORTH FORK FEATHER RIVER

5.6 MI S OF SH 89, Plumas, CA

Built 1983 Load: 32.4 t ADT: 80

DOTTA-GUIDICCI RD

Fair

Over: LAST CHANCE CREEK

0.6 MI W FRENCHMAN LKE RD, Plumas, CA

Built 1965 Load: 32.4 t ADT: 50

BKWTH GRNVILLE RD

Fair

Over: HOSSELKUS CREEK

0.3 MI W OF GENESSEE, Plumas, CA

Built 1983 Load: 32.4 t ADT: 115

STATE ROUTE 70

Fair

Over: CHIPPS CREEK

02-PLU-070-13.56, Plumas, CA

Built 1959 Load: 33.4 t ADT: 1,345

PAXTON RD

Fair

Over: E BR N FK FEATHER RIVER

AT SH 70, Plumas, CA

Built 1957 Load: 33.4 t ADT: 50

HUMBUG RD

Fair

Over: YELLOW CREEK

7.8 MI W HUMBG-HMBLT RD, Plumas, CA

Built 1960 Load: 33.4 t ADT: 35

QUINCY JUNCTION RD

Fair

Over: GREENHORN CREEK

2.2 MI N OF S.H. 70, Plumas, CA

Built 1955 Load: 34.7 t ADT: 930

SETZER CAMP RD

Fair

Over: WOLF CREEK

200 FT S OF SH 89, Plumas, CA

Built 1957 Load: 34.7 t ADT: 100

OLD RED BLUFF RD

Fair

Over: NORTH FORK FEATHER RIVER

7.0 MI W WARNER CREEK RD, Plumas, CA

Built 1956 Load: 36.0 t ADT: 130

BUTTERFLY VLY RD

Fair

Over: E BR N FK FEATHER RIVER

0.5 MI SE/O SR 70, Plumas, CA

Built 1950 Load: 36.3 t ADT: 20

FEATHER RIVER DR

Fair

Over: BRANCH CREEK

0.5 MI NW OF SH 36, Plumas, CA

Built 1966 Load: 36.6 t ADT: 400

STATE ROUTE 89

Fair

Over: MIDDLE FORK FEATHER RIV

02-PLU-089-8.23, Plumas, CA

Built 1955 Load: 37.3 t ADT: 2,025

BUCKS LAKE ROAD

Fair

Over: HASKINS CREEK

AT BUCKS LAKE, Plumas, CA

Built 1967 Load: 37.6 t ADT: 360

DIAMOND MOUNTAN RD

Fair

Over: E BRANCH LIGHTS CREEK

12.6 MI NE GRNVLE-BKWT RD, Plumas, CA

Built 1954 Load: 38.6 t ADT: 80

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.