Lassen County, CA

108 public highway bridges

Lassen County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lassen County, California contains 108 public highway bridges. Roughly 25% are rated “Good,” 64.8% “Fair,” and 8.3% “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.

108
Total Bridges
25%
Good
64.8%
Fair
8.3%
Poor Condition

Condition Distribution

Good
25% (27)
Fair
64.8% (70)
Poor
8.3% (9)

All Bridges (108)

U.S. HIGHWAY 395

Fair

Over: SOUTH TERMO DITCH

02-LAS-395-R114.25, Lassen, CA

Built 1971 Load: 32.4 t ADT: 1,200

FISH AND GAME ROAD

Fair

Over: SUSAN RIVER

1.6 MI. EAST OF MAPES LN, Lassen, CA

Built 1938 Load: 32.4 t ADT: 100

RICHMOND ROAD

Fair

Over: SUSAN RIVER

JUST N. OF RIVERSIDE DR., Lassen, CA

Built 1995 Load: 32.4 t ADT: 3,300

ALEXANDER AVE

Fair

Over: SUSAN RIVER

0.22 MI S OF S.H. 36, Lassen, CA

Built 1986 Load: 32.4 t ADT: 4,850

ON COUNTY ROAD 320

Fair

Over: SKEDADDLE CREEK

19.9 MI S/E OF US 395, Lassen, CA

Built 1988 Load: 32.4 t ADT: 200

CR312-BLICKENSTAFF

Fair

Over: DEEP CUT (BAXTER) CREEK

2.0 MI NE OF ROUTE 395, Lassen, CA

Built 2002 Load: 32.4 t ADT: 130

LEAVITT LN (CR213)

Fair

Over: SUSAN RIVER OVERFLOW

0.1 MI N OF US 395, Lassen, CA

Built 2009 Load: 32.4 t ADT: 1,500

MAPES LANE RD 305

Fair

Over: SUSAN RIVER OVERFLOW # 3

3.1 MI E OF LAMBERT LANE, Lassen, CA

Built 2016 Load: 32.4 t ADT: 130

MAPES LANE RD 305

Fair

Over: SUSAN RIVER OVERFLOW # 5

3.3 MI E OF LAMBERT LANE, Lassen, CA

Built 2016 Load: 32.4 t ADT: 130

HACKSTAFF ROAD

Fair

Over: LONG VALLEY CREEK

0.4 MI NE OF CR 361, Lassen, CA

Built 2021 Load: 32.4 t ADT: 80

CR316 (MCCLELLAND)

Fair

Over: NORTH FORK DILL SLOUGH

0.2 MI N OF CR 304, Lassen, CA

Built 1978 Load: 35.3 t ADT: 50

U.S. HIGHWAY 395

Fair

Over: GALEPPI UC

02-LAS-395-R17.51, Lassen, CA

Built 1969 Load: 36.3 t ADT: 5,500

STATE ROUTE 36

Fair

Over: SUSAN RIVER

02-LAS-036-R17.38, Lassen, CA

Built 1966 Load: 37.6 t ADT: 2,900

LASSEN ST

Fair

Over: SUSAN RIVER

0.3 MI S OF S.H. 36, Lassen, CA

Built 1965 Load: 37.9 t ADT: 400

JOHNSTONVILLE RD

Fair

Over: SUSAN RIVER

0.3 MI N OF US 395, Lassen, CA

Built 1921 Load: 38.2 t ADT: 600

STATE ROUTE 36

Fair

Over: ROBBERS CREEK

02-LAS-036-3.15, Lassen, CA

Built 1924 Load: 40.2 t ADT: 2,300

U.S. HIGHWAY 395

Fair

Over: LONG VALLEY CREEK OVFL

02-LAS-395-R21.34, Lassen, CA

Built 1969 Load: 41.1 t ADT: 5,500

CHAPPIUS LANE

Fair

Over: SUSAN RIVER

1.5 MI N OF SH 395, Lassen, CA

Built 1986 Load: 42.8 t ADT: 300

U.S. HIGHWAY 395

Fair

Over: WILLOW RANCH CREEK

02-LAS-395-R24.69, Lassen, CA

Built 1969 Load: 44.4 t ADT: 5,500

U.S. HIGHWAY 395

Fair

Over: EVANS CANYON RD

02-LAS-395-R0.10, Lassen, CA

Built 1976 Load: 50.2 t ADT: 4,600

U.S. HIGHWAY 395

Fair

Over: EVANS CANYON RD

02-LAS-395-R0.10, Lassen, CA

Built 1976 Load: 52.2 t ADT: 4,600

MAPES LANE RD 305

Fair

Over: SUSAN RIVER OVERFLOW #4

1.3 MI E OF RD 304, Lassen, CA

Built 2000 Load: 56.1 t ADT: 100

NO DATA ENTERED

Good

Over: PINE CREEK

NO DATA ENTERED, Lassen, CA

Built 1961 ADT: 20

PARK RIVERSIDE DR

Good

Over: SUSAN RIVER

0.6 MI E ALEXANDER DR, Lassen, CA

Built 1973 Load: 13.0 t ADT: 4,500

U.S. HIGHWAY 395

Good

Over: STANDISH IRRIG. CANAL

02-LAS-395-62.19, Lassen, CA

Built 1936 Load: 24.3 t ADT: 2,975

STATE ROUTE 299

Good

Over: RAINES CREEK

02-LAS-299-2.45, Lassen, CA

Built 1931 Load: 24.3 t ADT: 1,500

STATE ROUTE 299

Good

Over: BIEBER CREEK

02-LAS-299-19.83, Lassen, CA

Built 1928 Load: 24.3 t ADT: 1,050

STATE ROUTE 299

Good

Over: WILLOW CREEK

02-LAS-299-24.01, Lassen, CA

Built 1929 Load: 24.3 t ADT: 1,050

HERLONG ACCESS RD

Good

Over: LONG VALLEY CREEK

2.2 MI E US HWY 395, Lassen, CA

Built 1979 Load: 27.9 t ADT: 800

STATE ROUTE 299

Good

Over: BNSF RY

02-LAS-299-11.89, Lassen, CA

Built 1977 Load: 29.5 t ADT: 1,800

U.S. HIGHWAY 395

Good

Over: SUSAN RIVER

02-LAS-395-72.29, Lassen, CA

Built 1954 Load: 30.8 t ADT: 1,775

U.S. HIGHWAY 395

Good

Over: LONG VALLEY CREEK

02-LAS-395-26.19, Lassen, CA

Built 1946 Load: 32.4 t ADT: 5,500

STATE ROUTE 36

Good

Over: JENSEN SLOUGH

02-LAS-036-R26.36, Lassen, CA

Built 1964 Load: 32.4 t ADT: 15,300

STATE ROUTE 36

Good

Over: GOLD RUN CREEK

02-LAS-036-R27.36, Lassen, CA

Built 1964 Load: 32.4 t ADT: 10,300

STATE ROUTE 36

Good

Over: GOODRICH CREEK

02-LAS-036-7.30, Lassen, CA

Built 2021 Load: 32.4 t ADT: 2,300

MCCOY RD

Good

Over: SUSAN RIVER

1.6 MI S OF SR 44, Lassen, CA

Built 1989 Load: 32.4 t ADT: 100

COUNTY RD 311

Good

Over: DEEP CUT (BAXTER) CREEK

1.75 MI E OF CR A 3, Lassen, CA

Built 1988 Load: 32.4 t ADT: 150

CR 518 (SPALDING)

Good

Over: PINE CREEK

1.5 MI S EAGLE LAKE RD, Lassen, CA

Built 1976 Load: 32.4 t ADT: 1,800

ARMSTRONG ROAD

Good

Over: WILLOW CREEK

0.25 MI. S. OF SUSANV. RD, Lassen, CA

Built 1995 Load: 32.4 t ADT: 50

SKYLINE ROAD

Good

Over: SUSAN RIVER

0.15 MILE NE OF US 395, Lassen, CA

Built 2019 Load: 32.4 t ADT: 2,000

HACKSTAFF ROAD

Good

Over: LONG VALLEY CREEK

0.6 MI NE OF CR 361, Lassen, CA

Built 2021 Load: 32.4 t ADT: 80

STATE ROUTE 139

Good

Over: WILLOW CREEK

02-LAS-139-17.02, Lassen, CA

Built 1966 Load: 33.0 t ADT: 550

CONSERVATION CTR R

Good

Over: BROCKMAN SLOUGH

7.5 MI E OF SR 36, Lassen, CA

Built 1969 Load: 36.3 t ADT: 1,200

STATE ROUTE 139

Good

Over: MEADOW CHANNEL

02-LAS-139-16.92, Lassen, CA

Built 1966 Load: 41.1 t ADT: 550

BERT ROAD

Good

Over: LONG VALLEY CRK OVRFLOW

0.6 MI S OF US HWY 395, Lassen, CA

Built 1968 Load: 41.1 t ADT: 10

CR302 (LAMBERT LN)

Good

Over: HARTSON SLOUGH

0.4 MI SOUTH OF US 395, Lassen, CA

Built 2011 Load: 50.5 t ADT: 166

RD 302 (LAMBERT)

Good

Over: HARTSON SLOUGH OVERFLOW

0.3 MI SOUTH OF US 395, Lassen, CA

Built 2011 Load: 50.5 t ADT: 100

U.S. HIGHWAY 395

Good

Over: SCOTT UC

02-LAS-395-R1.09, Lassen, CA

Built 1976 Load: 52.2 t ADT: 4,600

U.S. HIGHWAY 395

Good

Over: SCOTT UC

02-LAS-395-R1.09, Lassen, CA

Built 1976 Load: 53.8 t ADT: 4,600

CR 305 (MAPES RD)

Poor

Over: HARTSON SLOUGH

0.4 MI E/O RD 303, Lassen, CA

Built 1978 ADT: 100

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

Related

Browse all → | Rankings →
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.