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.
Condition Distribution
All Bridges (108)
U.S. HIGHWAY 395
UnknownOver: STATE ROUTE 70
02-LAS-395-R4.60, Lassen, CA
U.S. HIGHWAY 395
UnknownOver: STATE ROUTE 70
02-LAS-395-R4.60, Lassen, CA
CR 417(PUNKIN CTR)
FairOver: MUDDY SLOUGH NO 2
2.6 MI S CR A2, Lassen, CA
ROAD 30N06
FairOver: SUSAN RIVER
NO DATA ENTERED, Lassen, CA
RD 304
FairOver: WHITEHEAD SLOUGH
0.9 MI E/O RD 302, Lassen, CA
RD 318
FairOver: SUSAN RIVER
1.7 MI E/O RD 305, Lassen, CA
CR306 (CAPEZOLLI)
FairOver: WHITEHEAD SLOUGH
0.3 MI E OF GALEPPI RD, Lassen, CA
RD 304 (ALEXANDER)
FairOver: SOUTH FORK DILL SLOUGH
1.1 MI E/O ROAD 302, Lassen, CA
RD 305 (MAPES RD)
FairOver: SUSAN RIVER OVERFLOW #6
1.7 MI E/O RD 304, Lassen, CA
CR527 (ASH VALLEY)
FairOver: NO NAME CREEK
3 MI W OF SPOONER ROAD, Lassen, CA
SCOTT ROAD
FairOver: LONG VALLEY CREEK
0.8 MI WEST OF US HWY 395, Lassen, CA
EAGLE LAKE RD
FairOver: PINE CREEK
10.6 MI S.W. OF SR 139, Lassen, CA
TRAVIS LANE
FairOver: BROCKMAN SLOUGH
.3 MI E/O JOHNSTONVILLE R, Lassen, CA
U.S. HIGHWAY 395
FairOver: SUSAN RIVER OVERFLOW
02-LAS-395-R71.92, Lassen, CA
SCOTT RD
FairOver: SCOTT CREEK
2.0 MI S OF SR 70, Lassen, CA
U.S. HIGHWAY 395
FairOver: DILL SLOUGH
02-LAS-395-R71.17, Lassen, CA
RD 305
FairOver: SUSAN RIVER OVERFLOW #8
1.6 MI SOUTH OF US 395, Lassen, CA
CENTER RD
FairOver: WILLOW CREEK
JUST EAST OF BELFAST RD, Lassen, CA
RD 315
FairOver: SUSAN RIVER
0.6 MI S OF CR 215, Lassen, CA
RD 303 (GALEPPI)
FairOver: HARTSON SLOUGH
0.5 MI N/O RD 305, Lassen, CA
BIEBER LOOKOUT RD
FairOver: ASH CREEK
2.3 MI N OF S.H. 299, Lassen, CA
RD 304
FairOver: SOUTH FORK DILL SLOUGH
0.5 MI N/O RD 306, Lassen, CA
COUNTY ROAD 311
FairOver: DEEP CUT (BAXTER) CREEK
1.3 MI E OF CR A3, Lassen, CA
C.R. 353
FairOver: BROWNELL CREEK
0.2 MI N/E US HWY 395, Lassen, CA
C.R. 353
FairOver: MCCLAY CREEK
1.3 MI NE OF US HWY 395, Lassen, CA
C.R. 353
FairOver: PARKER CREEK
0.5 MI N/W CR 301, Lassen, CA
JOHNSTONVILLE RD
FairOver: LASSEN CREEK
0.1 MI NW OF US 395, Lassen, CA
JOHNSTONVILLE RD
FairOver: SAND SLOUGH
0.2 MI N OF US 395, Lassen, CA
C.R. 301
FairOver: BAXTER CREEK
1.8 MI NE OF SH 395, Lassen, CA
SURPRISE VALLEY RD
FairOver: BARE CREEK
1.8 MI S OF MODOC C.L., Lassen, CA
ROAD 30N03
FairOver: SUSAN RIVER
14 MI W SUSANVILLE, Lassen, CA
STATE ROUTE 299
FairOver: PIT RIVER OVERFLOW
02-LAS-299-13.40, Lassen, CA
STATE ROUTE 299
FairOver: PIT RIVER OVERFLOW
02-LAS-299-13.61, Lassen, CA
STATE ROUTE 299
FairOver: PIT RIVER OVERFLOW
02-LAS-299-12.82, Lassen, CA
STATE ROUTE 299
FairOver: PIT RIVER
02-LAS-299-14.06, Lassen, CA
RD 304
FairOver: HARTSON SLOUGH
0.7 MI E/O RD 302, Lassen, CA
CR213 (LEAVITT LN)
FairOver: SUSAN RIVER
0.3 MI N OF US 395, Lassen, CA
C.R. 203
FairOver: GOLD RUN CREEK
4.2 MI S OF SR 36, Lassen, CA
C.R. 203
FairOver: LASSEN CREEK
6.8 MI SE OF SR 36, Lassen, CA
RD 306 (CAPEZOLLI)
FairOver: HARTSON SLOUGH
1.2 MI E/O RD 302, Lassen, CA
STATE ROUTE 70
FairOver: UP RR
02-LAS-070-1.16, Lassen, CA
CR213 (LEAVITT LN)
FairOver: SUSAN RIVER OVERFLOW
0.65 MI N OF US 395, Lassen, CA
STATE ROUTE 299
FairOver: PIT RIVER OVERFLOW
02-LAS-299-13.12, Lassen, CA
U.S. HIGHWAY 395
FairOver: UP RR & BNSF RY
02-LAS-395-R22.97, Lassen, CA
STATE ROUTE 299
FairOver: PIT RIVER OVERFLOW
02-LAS-299-12.27, Lassen, CA
GARNIER RD
FairOver: LONG VALLEY CREEK
2.0 MI N OF US HWY 395, Lassen, CA
U.S. HIGHWAY 395
FairOver: LONG VALLEY CREEK
02-LAS-395-15.87, Lassen, CA
STATE ROUTE 36
FairOver: SUSAN RIVER
02-LAS-036-R26.72, Lassen, CA
U.S. HIGHWAY 395
FairOver: LONG VALLEY CREEK
02-LAS-395-28.00, Lassen, CA
STATE ROUTE 70
FairOver: LONG VALLEY CREEK
02-LAS-070-1.97, Lassen, CA
Read our methodology - how this data is sourced, computed, and verified.
Related
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.