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
CHESTNUT AVE
FairOver: COLMA CANAL
0.1 MI S COMMERCIAL AVE, San Mateo, CA
Built 1976 Load: 32.4 t ADT: 23,265
ROAD-1 SOUTH
FairOver: EAST UNDERCROSSING
EAST OF US 101, San Mateo, CA
Built 1973 Load: 32.4 t ADT: 64,200
ROAD-1 NORTH
FairOver: R-1N OFF-RAMP
EAST OF US 101, San Mateo, CA
Built 1973 Load: 32.4 t ADT: 19,170
ROAD-1 SOUTH
FairOver: R-1S OFF-RAMP
EAST OF US 101, San Mateo, CA
Built 1973 Load: 32.4 t ADT: 19,170
THIRD AVENUE
FairOver: SEAL SLOUGH
0.4 MI W MRNRS ISLAND BL, San Mateo, CA
Built 1985 Load: 32.4 t ADT: 11,290
SAN PEDRO AVE
FairOver: SAN PEDRO CREEK
PACIFICA, San Mateo, CA
Built 1996 Load: 32.4 t ADT: 4,500
ANZA BLVD
FairOver: BURLINGAME LAGOON
EAST OF SH 101, San Mateo, CA
Built 1989 Load: 32.4 t ADT: 10,000
WESTRIDGE DR
FairOver: CORTE MADERA CREEK
0.4 MI N/E PORTOLA RD, San Mateo, CA
Built 1990 Load: 32.4 t ADT: 1,465
4TH AVENUE
FairOver: SAN MATEO CREEK
4TH AVE @ SR 101, San Mateo, CA
Built 1998 Load: 32.4 t ADT: 7,500
SF AIRPORT-S101 ON
FairOver: AIRPORT PROPERTY
A1 - B7 OF 35 0274K, San Mateo, CA
Built 1987 Load: 32.4 t ADT: 10,270
NORFOLK STREET
FairOver: SAN MATEO CREEK
SOUTH OF 3RD AVE, San Mateo, CA
Built 2001 Load: 32.4 t ADT: 14,780
ENTRADA WAY
FairOver: LA HONDA CREEK
0.1 MI. EAST OF SR 84, San Mateo, CA
Built 1973 Load: 32.4 t ADT: 100
FOX HOLLOW ROAD
FairOver: BEAR GULCH CREEK
500 FT S. OF SR 84, San Mateo, CA
Built 1975 Load: 32.4 t ADT: 50
ISLAND PARKWAY
FairOver: AUTOBAHN MOTORS
0.1 M. N. OF MARINE PKWY, San Mateo, CA
Built 2004 Load: 32.4 t ADT: 2,500
US HIGHWAY 101 NB
FairOver: DOS PUEBLOS CRK & CYN RD
05-SB-101-30.06, Santa Barbara, CA
Built 1958 Load: 32.4 t ADT: 16,000
STATE ROUTE 166
FairOver: COTTONWOOD CREEK
05-SB-166-R51.41, Santa Barbara, CA
Built 1980 Load: 32.4 t ADT: 2,900
STATE ROUTE 166
FairOver: SALISBURY CANYON
05-SB-166-64.76, Santa Barbara, CA
Built 1943 Load: 32.4 t ADT: 4,500
U.S. HIGHWAY 101
FairOver: SAN ANTONIO CREEK
05-SB-101-70.99, Santa Barbara, CA
Built 1958 Load: 32.4 t ADT: 29,000
STATE ROUTE 192
FairOver: CARPINTERIA CREEK
05-SB-192-R19.09, Santa Barbara, CA
Built 1977 Load: 32.4 t ADT: 1,925
STATE ROUTE 246
FairOver: SANTA ROSA CREEK
05-SB-246-R20.22, Santa Barbara, CA
Built 2000 Load: 32.4 t ADT: 16,000
STATE ROUTE 225
FairOver: UP RR & AMTRAK
05-SB-225-0.02-SB, Santa Barbara, CA
Built 1984 Load: 32.4 t ADT: 22,000
US HIGHWAY 101 SB
FairOver: GARDEN STREET
05-SB-101-13.49-SB, Santa Barbara, CA
Built 1990 Load: 32.4 t ADT: 54,500
US HIGHWAY 101 NB
FairOver: GARDEN STREET
05-SB-101-13.49-SB, Santa Barbara, CA
Built 1990 Load: 32.4 t ADT: 54,500
US HIGHWAY 101 SB
FairOver: STATE STREET
05-SB-101-13.79-SB, Santa Barbara, CA
Built 1990 Load: 32.4 t ADT: 54,500
US HIGHWAY 101 NB
FairOver: STATE STREET
05-SB-101-13.79-SB, Santa Barbara, CA
Built 1990 Load: 32.4 t ADT: 54,500
US HIGHWAY 101 NB
FairOver: MISSION CREEK
05-SB-101-13.96-SB, Santa Barbara, CA
Built 1990 Load: 32.4 t ADT: 54,500
N101-MAIN ST OFF
FairOver: BRADLEY CHANNEL
05-SB-101-88.54-SMRA, Santa Barbara, CA
Built 1997 Load: 32.4 t ADT: 14,500
MAIN ST-N101 ON RP
FairOver: BRADLEY CHANNEL
05-SB-101-88.68-SMRA, Santa Barbara, CA
Built 1997 Load: 32.4 t ADT: 16,500
STATE ROUTE 150
FairOver: RINCON CREEK
05-SB-150-1.09, Santa Barbara, CA
Built 2005 Load: 32.4 t ADT: 4,800
US HIGHWAY 101
FairOver: SYCAMORE CREEK
05-SB-101-12.30, Santa Barbara, CA
Built 2011 Load: 32.4 t ADT: 109,000
US HIGHWAY 101
FairOver: CACIQUE STREET
05-SB-101-12.60, Santa Barbara, CA
Built 2012 Load: 32.4 t ADT: 109,000
U.S. HIGHWAY 101
FairOver: LAS VEGAS CREEK
05-SB-101-22.57, Santa Barbara, CA
Built 2016 Load: 32.4 t ADT: 65,000
U.S. HIGHWAY 101
FairOver: SAN PEDRO CREEK
05-SB-101-22.80, Santa Barbara, CA
Built 2016 Load: 32.4 t ADT: 65,000
SANTA ROSA ROAD
FairOver: E BRANCH SALSIPUEDES CRK
0.47 MI EAST OF SH 1, Santa Barbara, CA
Built 1988 Load: 32.4 t ADT: 855
HOLLISTER AVE
FairOver: SAN JOSE CREEK
0.1 MI EAST KELLOG AVE, Santa Barbara, CA
Built 1964 Load: 32.4 t ADT: 25,445
MISSION CANYON RD
FairOver: MISSION CREEK
0.4 MI N OF SR192, Santa Barbara, CA
Built 1996 Load: 32.4 t ADT: 3,612
SAN MARCOS RD
FairOver: SAN ANTONIO CREEK
0.2MI N EL CAMINO REAL RD, Santa Barbara, CA
Built 1998 Load: 32.4 t ADT: 3,563
SANTA MARIA MESA
FairOver: SISQUOC RIVER
0.6 MI E FOXEN CANYON RD, Santa Barbara, CA
Built 1998 Load: 32.4 t ADT: 1,371
PATTERSON AVE
FairOver: UP RR & AMTRAK
S OF U.S. HWY 101, Santa Barbara, CA
Built 1992 Load: 32.4 t ADT: 26,359
AVE OF THE FLAGS
FairOver: ZACA CREEK
0.1 MI S OF SH 246, Santa Barbara, CA
Built 1948 Load: 32.4 t ADT: 3,000
UNIVERSITY DRIVE
FairOver: MARIA YGNACIA CREEK
0.2 MI E PATTERSON AVE, Santa Barbara, CA
Built 2003 Load: 32.4 t ADT: 1,500
VAREDA LEYENDA
FairOver: TECOLOTE CREEK
0.15 MI N VEREDA GALERIA, Santa Barbara, CA
Built 1961 Load: 32.4 t ADT: 293
CALLE DE LOS AMIGO
FairOver: ARROYO BURRO CREEK
0.15 MI S PORTOFINO WAY, Santa Barbara, CA
Built 1983 Load: 32.4 t ADT: 1,300
STORKE ROAD
FairOver: UP RR & AMTRAK
0.1 MI STH OF HWY 101, Santa Barbara, CA
Built 1997 Load: 32.4 t ADT: 34,976
BATH ST
FairOver: MISSION CREEK
BETWEEN ORTEGA AND COTA, Santa Barbara, CA
Built 1996 Load: 32.4 t ADT: 4,851
FAIRVIEW AVE
FairOver: UP RR & AMTRAK
JUST S/O U.S. HWY 101, Santa Barbara, CA
Built 2000 Load: 32.4 t ADT: 30,280
RANCHO VERDE ST
FairOver: BLOSSER CHANNEL
@ BLOSSER ROAD, Santa Barbara, CA
Built 1975 Load: 32.4 t ADT: 4,400
N JAMESON LN
FairOver: ROMERO CREEK
0.7 MI E SAN YSIDRO RD, Santa Barbara, CA
Built 2005 Load: 32.4 t ADT: 3,448
N JAMESON LN
FairOver: SAN YSIDRO CREEK
0.45 MI E SAN YSIDRO RD, Santa Barbara, CA
Built 2005 Load: 32.4 t ADT: 3,448
N JAMESON LN
FairOver: OAK CREEK
0.35 MI E SAN YSIDRO RD, Santa Barbara, CA
Built 2005 Load: 32.4 t ADT: 2,372
Showing 14,101-14,150 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.