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
STATE ROUTE 99
GoodOver: FRESNO RIVER
06-MAD-099-11.65-MAD, Madera, CA
Built 1989 Load: 32.4 t ADT: 68,000
STATE ROUTE 99
GoodOver: SR 99
06-MAD-099-R14.60, Madera, CA
Built 1973 Load: 32.4 t ADT: 65,000
STATE ROUTE 145
GoodOver: SAN JOAQUIN RIVER
06-MAD-145-R0.01, Madera, CA
Built 2005 Load: 32.4 t ADT: 6,300
STATE ROUTE 145
GoodOver: COTTONWOOD CREEK
06-MAD-145-5.39, Madera, CA
Built 2009 Load: 32.4 t ADT: 5,800
ONRAMP
GoodOver: SR 99
06-MAD-099-R7.28, Madera, CA
Built 2016 Load: 32.4 t ADT: 1,650
CLEVELAND AVE
GoodOver: FRESNO RIVER
0.1 MI W OF SH145, Madera, CA
Built 1988 Load: 32.4 t ADT: 22,326
ROAD 225
GoodOver: SOUTH FORK WILLOW CREEK
0.3 MI E OF ROAD 274, Madera, CA
Built 1951 Load: 32.4 t ADT: 2,200
AVENUE 7
GoodOver: CHOWCHILLA CANAL BYPASS
1.5 MI E OF AVE 7.5, Madera, CA
Built 1990 Load: 32.4 t ADT: 1,500
AVENUE 17.5
GoodOver: BERENDA CREEK
0.1 MI E OF CR 16.5, Madera, CA
Built 1987 Load: 32.4 t ADT: 50
AVENUE 20
GoodOver: BERENDA SLOUGH
0.3 KM W OF CR 14, Madera, CA
Built 1994 Load: 32.4 t ADT: 395
CR 13
GoodOver: CHOWCHILLA RIVER
0.5 MI NORTH OF AVE 26.5, Madera, CA
Built 1995 Load: 32.4 t ADT: 1,800
ROAD 23
GoodOver: COTTONWOOD CREEK
S/O AVENUE 10, Madera, CA
Built 1995 Load: 32.4 t ADT: 700
COUNTY ROAD 8
GoodOver: CHOWCHILLA RIVER
0.4 MI N/O AVENUE 25, Madera, CA
Built 1995 Load: 32.4 t ADT: 275
HENSLEY RD(RD 407)
GoodOver: WILLOW CREEK
1.3 MILE SE RAYMOND RD, Madera, CA
Built 1998 Load: 32.4 t ADT: 110
COUNTY ROAD 19
GoodOver: CHOWCHILLA RIVER
1.8 MI. NORTH OF AVE. 26, Madera, CA
Built 1998 Load: 32.4 t ADT: 225
SCHNOOR AVENUE
GoodOver: FRESNO RIVER
0.5 MI N OF SUNSET AVE, Madera, CA
Built 1993 Load: 32.4 t ADT: 13,655
C R 13
GoodOver: BERENDA SLOUGH
AT AVENUE 19, Madera, CA
Built 2005 Load: 32.4 t ADT: 366
RD 425B
GoodOver: CHINA CREEK
AT CRANE VALLEY RD, Madera, CA
Built 2014 Load: 32.4 t ADT: 3,000
AVENUE 12
GoodOver: UP RR, COTTONWOOD CREEK
0.04 MI E/O SR 99, Madera, CA
Built 2015 Load: 32.4 t ADT: 2,000
ROAD 29
GoodOver: COTTONWOOD CREEK
0.19 MI N/O AVE 12, Madera, CA
Built 2015 Load: 32.4 t ADT: 615
ROAD 29
GoodOver: COTTONWOOD CREEK
0.27 MI S/O AVE 12, Madera, CA
Built 2015 Load: 32.4 t ADT: 615
CR 600(RAYMOND RD)
GoodOver: MADERA CANAL
3.9 MI NE OF AVE 21, Madera, CA
Built 2016 Load: 32.4 t ADT: 1,700
ROAD 23
GoodOver: DRY CREEK
0.1 MILE N OF AVE 18, Madera, CA
Built 2021 Load: 32.4 t ADT: 2,263
AVENUE 8
GoodOver: FUTURE HIGH SPEED TRAIN
0.7 M WEST OF ROAD 33, Madera, CA
Built 2019 Load: 32.4 t ADT: 1,000
AVENUE 11
GoodOver: FUTURE HIGH SPEED TRAIN
0.9 M WEST OF ROAD 32, Madera, CA
Built 2019 Load: 32.4 t ADT: 1,000
AVENUE 7
GoodOver: FUTURE HIGH SPEED TRAIN
0.1 M WEST OF ROAD 33, Madera, CA
Built 2020 Load: 32.4 t ADT: 1,000
AVENUE 10
GoodOver: FUTURE HIGH SPEED TRAIN
0.7 M WEST OF ROAD 33, Madera, CA
Built 2020 Load: 32.4 t ADT: 1,000
AVENUE 12
GoodOver: FUTURE RD & TRACKS(CHSR)
2.2 MI EAST OF RTE 99, Madera, CA
Built 2021 Load: 32.4 t ADT: 1,000
AVENUE 15
GoodOver: FUTURE HIGH SPEED TRAIN
0.9 M WEST OF ROAD 33, Madera, CA
Built 2020 Load: 32.4 t ADT: 1,000
ROAD 27 (LAKE ST)
GoodOver: RAILROAD (CHSR, BNSF)
NORTH OF AVENUE 17, Madera, CA
Built 2021 Load: 32.4 t ADT: 1,000
AVENUE 12
GoodOver: RAILROAD TRACKS (BNSF)
2.6 MI EAST OF RTE 99, Madera, CA
Built 2021 Load: 32.4 t ADT: 1,000
AVENUE 15 1/5
GoodOver: FUTURE HIGH SPEED RAIL
NEAR INTERSECT OF ROAD 29, Madera, CA
Built 2022 Load: 32.4 t ADT: 1,000
U.S. HIGHWAY 101
GoodOver: NWP RR / SMART
04-MRN-101-13.25-SRF, Marin, CA
Built 1957 Load: 32.4 t ADT: 167,000
STATE ROUTE 1
GoodOver: WALKER CREEK
04-MRN-001-44.45, Marin, CA
Built 1982 Load: 32.4 t ADT: 5,900
STATE ROUTE 1
GoodOver: STEMPLE CREEK
04-MRN-001-47.41, Marin, CA
Built 1982 Load: 32.4 t ADT: 5,900
STATE ROUTE 1
GoodOver: FALLON CREEK
04-MRN-001-47.60, Marin, CA
Built 2001 Load: 32.4 t ADT: 5,900
U.S. HIGHWAY 101
GoodOver: FRANKLIN AV & NWP RR
04-MRN-101-R20.88-NVTO, Marin, CA
Built 1974 Load: 32.4 t ADT: 61,500
ROUTE 101 SB
GoodOver: RUSH LANDING RD & NWP RR
04-MRN-101-R22.24-NVTO, Marin, CA
Built 1974 Load: 32.4 t ADT: 61,500
U.S. HIGHWAY 101
GoodOver: RUSH CREEK (S BRANCH)
04-MRN-101-R22.04-NVTO, Marin, CA
Built 1974 Load: 32.4 t ADT: 123,000
U.S. HIGHWAY 101
GoodOver: RUSH CREEK (N BRANCH)
04-MRN-101-R22.13-NVTO, Marin, CA
Built 1974 Load: 32.4 t ADT: 123,000
U.S. HIGHWAY 101
GoodOver: SAN ANTONIO CREEK
04-MRN-101-27.53, Marin, CA
Built 2019 Load: 32.4 t ADT: 96,600
STATE ROUTE 1
GoodOver: OLEMA CREEK TRIBUTARY
04-MRN-001-24.67, Marin, CA
Built 2018 Load: 32.4 t ADT: 3,650
STATE ROUTE 1
GoodOver: AMERICANO CREEK
04-MRN-001-50.44, Marin, CA
Built 2018 Load: 32.4 t ADT: 1,200
STATE ROUTE 1
GoodOver: GIACOMINI GULCH
04-MRN-001-22.78, Marin, CA
Built 2018 Load: 32.4 t ADT: 3,650
101N OFFRAMP 2 ST
GoodOver: SAN RAFAEL CREEK
04-MRN-101-10.79-SRF, Marin, CA
Built 2022 Load: 32.4 t ADT: 22,800
TOMALES PETALUMA R
GoodOver: KEYES CREEK
0.1 MI EAST OF SR 1, Marin, CA
Built 1977 Load: 32.4 t ADT: 1,200
IGNACIO BLVD
GoodOver: NCRRA\NWP RR
EAST OF US 101, Marin, CA
Built 1984 Load: 32.4 t ADT: 25,546
MEADWOOD DR
GoodOver: BRANCH CORTE MADERA CRK
IN LARKSPUR, Marin, CA
Built 1974 Load: 32.4 t ADT: 3,000
CALETA AVE
GoodOver: SLEEPY HOLLOW CREEK
200 FT E BUTTERFIELD RD, Marin, CA
Built 1989 Load: 32.4 t ADT: 500
MUIR WOODS RD
GoodOver: REDWOOD CREEK
0.7 MI N OF SR 1, Marin, CA
Built 1958 Load: 32.4 t ADT: 2,187
Showing 21,201-21,250 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.