Total Bridges
27,040
Public highway bridges in California
State profile · Below national median SD
California bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in California — drawn straight from the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
- 4.6%
- Structurally deficient
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges rated 0-4
Structurally Deficient
4.6%
1,244 bridges flagged for repair priority
-2.4pp vs national avg 7.0%
California vs national bridge condition
California — Good condition share 32.5%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
California — Structurally deficient share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — California (FHWA NBI)
Counties (58)
Alameda 800 Alpine 32 Amador 62 Butte 441 Calaveras 106 Colusa 211 Contra Costa 686 Del Norte 96 El Dorado 196 Fresno 929 Glenn 242 Humboldt 398 Imperial 448 Inyo 67 Kern 686 Kings 168 Lake 129 Lassen 108 Los Angeles 3937 Madera 250 Marin 217 Mariposa 109 Mendocino 357 Merced 532 Modoc 87 Mono 49 Monterey 390 Napa 160 Nevada 135 Orange 1224 Placer 347 Plumas 170 Riverside 1142 Sacramento 775 San Benito 76 San Bernardino 1465 San Diego 1707 San Francisco 170 San Joaquin 666 San Luis Obispo 408 San Mateo 393 Santa Barbara 429 Santa Clara 1041 Santa Cruz 203 Shasta 500 Sierra 65 Siskiyou 423 Solano 383 Sonoma 613 Stanislaus 390 Sutter 120 Tehama 452 Trinity 194 Tulare 599 Tuolumne 128 Ventura 511 Yolo 282 Yuba 136
California vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below California on the same metric.
39
Ohio
4.54% top marginal rate
34
New Jersey
4.59% top marginal rate
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by composite NBI rating. Each is inspected at least every 24 months.
SPRING CREEK RD
PoorOver: FALL RIVER
0.5 MI N OF MCARTHUR RD, Shasta, CA
Built 1950 Load: 2.7 t ADT: 50
ORESTIMBA ROAD
PoorOver: CCID MAIN CANAL
0.1 MI E DRAPER RD, Stanislaus, CA
Built 1919 Load: 2.9 t ADT: 684
CLARK STREET
PoorOver: M.I.D. CANAL
0.1 MI WEST OF ROAD 26.0, Madera, CA
Built 1955 Load: 3.2 t ADT: 200
GULLING STREET
Structurally DeficientOver: MIDDLE FORK FEATHER RIV
0.2 MI S SH 70, Plumas, CA
Built 1954 Load: 3.2 t ADT: 10,046
AVENUE 10
PoorOver: COTTONWOOD CREEK
JUST E/O ROAD 23, Madera, CA
Built 1950 Load: 3.6 t ADT: 50
S BISHOP AVE
PoorOver: CRESCENT DITCH
0.64 MI S/O MT WHITNEY AV, Fresno, CA
Built 1950 Load: 3.9 t ADT: 125
All Bridges in California
NORTH BONNYVIEW RD
GoodOver: A.C.I.D. CANAL
0.3 MI EAST OF SR 273, Shasta, CA
Built 1975 Load: 32.4 t ADT: 300
OLD 44 DR
GoodOver: SPRING CREEK
0.2 MI E DESCHUTES RD, Shasta, CA
Built 1980 Load: 32.4 t ADT: 2,860
HIDDEN LANE
GoodOver: SPRING CREEK
0.7 MI DESCHTS RD BRYL LN, Shasta, CA
Built 1980 Load: 32.4 t ADT: 100
BERYL DR
GoodOver: SPRING CREEK
0.6 MI W & S DESCHUTES RD, Shasta, CA
Built 1978 Load: 32.4 t ADT: 100
ZOGG MINE RD
GoodOver: ANDREW CREEK
1.1 MI N OF SOUTH FORK RD, Shasta, CA
Built 1975 Load: 32.4 t ADT: 162
OLD OREGON TRAIL
GoodOver: STILLWATER CREEK TRIBTRY
1.5 MI S ST RTE 299, Shasta, CA
Built 1978 Load: 32.4 t ADT: 5,450
ELLIS ST
GoodOver: A.C.I.D. CANAL
0.2 MI E OF S.R. 273, Shasta, CA
Built 1978 Load: 32.4 t ADT: 3,500
LAWRENCE ROAD
GoodOver: WEST BRANCH CHURN CREEK
0.3 MI S HARTNELL AVE., Shasta, CA
Built 2000 Load: 32.4 t ADT: 1,855
PINE GROVE AVENUE
GoodOver: CHURN CREEK
1.0 MI W I-5., Shasta, CA
Built 2000 Load: 32.4 t ADT: 3,630
CHURN CREEK ROAD
GoodOver: WEST BRANCH CHURN CREEK
0.2 MI SOUTH OF SR 44, Shasta, CA
Built 1984 Load: 32.4 t ADT: 23,624
PARKVILLE ROAD
GoodOver: BEAR CREEK
2.4 MI N ASH CR RD, Shasta, CA
Built 2003 Load: 32.4 t ADT: 130
LONG HAY FLAT RD
GoodOver: BALLEY CREEK
1.3 MI SOUTH S.R. 44, Shasta, CA
Built 2003 Load: 32.4 t ADT: 114
ROCK CR RD
GoodOver: ROCK CREEK
6.5 MI OF S.R. 44, Shasta, CA
Built 2003 Load: 32.4 t ADT: 40
MCARTHUR ROAD
GoodOver: FALL RIVER
4.4 MI NW OF SR 299, Shasta, CA
Built 2004 Load: 32.4 t ADT: 661
IRR COVE ROAD
GoodOver: HATCHET CREEK
2.7 MI N OF SR 299, Shasta, CA
Built 2007 Load: 32.4 t ADT: 83
RANCHO RD
GoodOver: STILLWATER CREEK
3.2 MI E I5, Shasta, CA
Built 2007 Load: 32.4 t ADT: 29
LONETREE RD
GoodOver: LONETREE CREEK
0.4 MI E BALLS FERRY RD, Shasta, CA
Built 2006 Load: 32.4 t ADT: 29
ZOGG MINE RD
GoodOver: ZOGG CREEK
4.0 MI N OF S FORK RD, Shasta, CA
Built 2007 Load: 32.4 t ADT: 10
E FORK RD
GoodOver: CLEAR CREEK
100 FT E/O TRINITY RD, Shasta, CA
Built 2011 Load: 32.4 t ADT: 120
BUZZARD ROOST RD
GoodOver: CEDAR CREEK
150' S OF SR 299, Shasta, CA
Built 2010 Load: 32.4 t ADT: 247
TWIN VIEW BLVD
GoodOver: CHURN CREEK
04 MI SOUTH OF OASIS RD, Shasta, CA
Built 2013 Load: 32.4 t ADT: 1,400
INWOOD ROAD
GoodOver: SOUTH FORK BEAR CREEK
0.2 MI W OF PONDEROSA WAY, Shasta, CA
Built 2017 Load: 32.4 t ADT: 90
0.3 ML S OF OASIS
GoodOver: CHURN CREEK
0.3 M S OF OASIS RD, Shasta, CA
Built 2014 Load: 32.4 t ADT: 350
SWEDE CREEK ROAD
GoodOver: LITTLE COW CREEK
0.5 MI S/E DESCHUTES RD, Shasta, CA
Built 2015 Load: 32.4 t ADT: 1,684
COVE ROAD
GoodOver: ROARING CREEK
4.5 MI N OF STATE RTE 299, Shasta, CA
Built 1998 Load: 32.4 t ADT: 61
SHARON AVE
GoodOver: A.C.I.D CANAL
300' N/W RUSSELL ST, Shasta, CA
Built 2022 Load: 32.4 t ADT: 200
GAS PT RD
GoodOver: NO NAME DITCH
1.9 ML WEST OF I-5, Shasta, CA
Built 2022 Load: 32.4 t ADT: 5,104
UPPER BRIDGE ROAD
GoodOver: SOUTH COW CREEK
LATOUR STATE FOREST, Shasta, CA
Built 1990 Load: 32.4 t ADT: 10
STATE ROUTE 89
GoodOver: LITTLE TRUCKEE RIVER
03-SIE-089-2.56, Sierra, CA
Built 1982 Load: 32.4 t ADT: 2,000
STATE ROUTE 89
GoodOver: TURNER CANYON
03-SIE-089-18.80, Sierra, CA
Built 1975 Load: 32.4 t ADT: 1,400
STATE ROUTE 49
GoodOver: HILLSIDE
03-SIE-049-6.55, Sierra, CA
Built 1980 Load: 32.4 t ADT: 600
STATE ROUTE 49
GoodOver: HILLSIDE
03-SIE-049-2.65, Sierra, CA
Built 1988 Load: 32.4 t ADT: 600
SR 49
GoodOver: BURIED DRAIN PIPE
03-SIE-049-44.75, Sierra, CA
Built 2017 Load: 32.4 t ADT: 850
STATE ROUTE 49
GoodOver: N YUBA RIVER,N SIDE CHNL
03-SIE-049-9.19, Sierra, CA
Built 2021 Load: 32.4 t ADT: 850
STATE ROUTE 49
GoodOver: N YUBA RIVER,N SIDE CHNL
03-SIE-049-19.54, Sierra, CA
Built 2021 Load: 32.4 t ADT: 680
STATE ROUTE 49
GoodOver: N YUBA RIVER,N SIDE CHNL
03-SIE-049-21.53, Sierra, CA
Built 2021 Load: 32.4 t ADT: 680
STATE ROUTE 49
GoodOver: N YUBA RIVER,N SIDE CHNL
03-SIE-049-24.70, Sierra, CA
Built 2021 Load: 32.4 t ADT: 680
HENNESS PASS ROAD
GoodOver: LITTLE TRUCKEE RIVER
3 MI EAST OF WEBBER LAKE, Sierra, CA
Built 2002 Load: 32.4 t ADT: 340
SIERRA BUTTE ROAD
GoodOver: REIS RAVINE
0.4 MI NORTH OF ROUTE 49, Sierra, CA
Built 2005 Load: 32.4 t ADT: 150
OLD FIBREBOARD RD
GoodOver: LITTLE TRUCKEE RIVER
S OF JACKSON MEADOW RD, Sierra, CA
Built 2014 Load: 32.4 t ADT: 400
STATE ROUTE 3
GoodOver: SCOTT RIVER
02-SIS-003-31.68, Siskiyou, CA
Built 1956 Load: 32.4 t ADT: 2,750
STATE ROUTE 96
GoodOver: SWILLUP CREEK
02-SIS-096-23.25, Siskiyou, CA
Built 2002 Load: 32.4 t ADT: 360
STATE ROUTE 96
GoodOver: DOGGETT CREEK
02-SIS-096-82.67, Siskiyou, CA
Built 1953 Load: 32.4 t ADT: 650
STATE ROUTE 96 WB
GoodOver: HILLSIDE
02-SIS-096-R15.30, Siskiyou, CA
Built 2009 Load: 32.4 t ADT: 330
STATE ROUTE 96
GoodOver: FORT GOFF CREEK
02-SIS-096-55.96, Siskiyou, CA
Built 2015 Load: 32.4 t ADT: 615
STATE ROUTE 263
GoodOver: KLAMATH RIVER
02-SIS-263-57.10, Siskiyou, CA
Built 2021 Load: 32.4 t ADT: 990
STATE ROUTE 89
GoodOver: MUD CREEK
02-SIS-089-21.08, Siskiyou, CA
Built 2018 Load: 32.4 t ADT: 2,400
INTERSTATE 5 SB
GoodOver: UP RR & AMTRAK
02-SIS-005-R15.94, Siskiyou, CA
Built 2021 Load: 32.4 t ADT: 12,750
STATE ROUTE 3
GoodOver: MOFFETT CREEK
02-SIS-003-38.26, Siskiyou, CA
Built 2021 Load: 32.4 t ADT: 2,900
SAWYERS BAR RD
GoodOver: MILL CREEK
5.8 MI W OF SH 3, Siskiyou, CA
Built 1982 Load: 32.4 t ADT: 167
Showing 23,151-23,200 of 27,040 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |