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
PESCADERO RD
FairOver: ALPINE CREEK
ALPINE RD @ PESCADERO RD, San Mateo, CA
Built 1968 Load: 24.3 t ADT: 848
NORFOLK ST
FairOver: 16TH AVE CHANNEL
SOUTH OF LODI AVE, San Mateo, CA
Built 1953 Load: 24.3 t ADT: 5,590
BAYSHORE HWY
FairOver: MILLS CREEK
0.5 MI N AIRPORT BLVD, San Mateo, CA
Built 1950 Load: 24.3 t ADT: 18,000
SOUTH CANAL STREET
FairOver: BRANCH OF COLMA CREEK
SPRUCE AVE, San Mateo, CA
Built 1955 Load: 24.3 t ADT: 1,381
OTAY AVE
FairOver: LAUREL CREEK
0.05 MI E CURTISS ST, San Mateo, CA
Built 1961 Load: 24.3 t ADT: 140
LATHROP ST
FairOver: REDWOOD CREEK
SOUTH OF MAPLE ST, San Mateo, CA
Built 1955 Load: 24.3 t ADT: 9,000
STATE ROUTE 166
FairOver: CUYAMA RIVER
05-SB-166-R34.95, Santa Barbara, CA
Built 1972 Load: 24.3 t ADT: 2,500
U.S. HIGHWAY 101
FairOver: WINCHESTER CREEK
05-SB-101-27.16, Santa Barbara, CA
Built 1929 Load: 24.3 t ADT: 32,000
GLEN ANNIE ROAD
FairOver: GLEN ANNIE CREEK
0.29 MI S HOLLISTER AVE, Santa Barbara, CA
Built 1964 Load: 24.3 t ADT: 8,229
ONTARE ROAD
FairOver: SAN ROQUE CREEK
0.45 MI S SR 192, Santa Barbara, CA
Built 1954 Load: 24.3 t ADT: 2,080
CATHEDRAL OAK RD
FairOver: MARIA YGNACIO CREEK
0.4 MI E PATTERSON AVE, Santa Barbara, CA
Built 1961 Load: 24.3 t ADT: 9,272
HOLLISTER AVE
FairOver: CARNEROS CREEK
0.05 MI E OF AERO CAMINO, Santa Barbara, CA
Built 1965 Load: 24.3 t ADT: 14,800
CALLE REAL RD
FairOver: LAS VEGAS CREEK
0.2 MI W FAIRVIEW AVE, Santa Barbara, CA
Built 1961 Load: 24.3 t ADT: 12,786
STATE STREET
FairOver: SAN ROQUE CREEK
0.15 W OF ONTARE RD, Santa Barbara, CA
Built 1962 Load: 24.3 t ADT: 29,107
TORINO DRIVE
FairOver: ARROYO BURRO CREEK
SOUTH OF BARCELONA DR, Santa Barbara, CA
Built 1965 Load: 24.3 t ADT: 430
POR LAMAR DR
FairOver: SYCAMORE CREEK
S ENTR TO EL ESCORIAL, Santa Barbara, CA
Built 1964 Load: 24.3 t ADT: 1,000
NINOS DR
FairOver: SYCAMORE CREEK
N ENTR TO EL ESCORIAL, Santa Barbara, CA
Built 1964 Load: 24.3 t ADT: 1,000
ZOOLOGICAL GARDEN
FairOver: SYCAMORE CREEK
AT NINOS DR, Santa Barbara, CA
Built 1967 Load: 24.3 t ADT: 1,500
STATE ROUTE 152
FairOver: KILLDEER CREEK
04-SCL-152-R25.36, Santa Clara, CA
Built 1922 Load: 24.3 t ADT: 30,750
CRISTO REY DR
FairOver: UP RR BRANCH
NEAR FOOTHILL BLVD, Santa Clara, CA
Built 1966 Load: 24.3 t ADT: 500
SAN TOMAS EXPWY
FairOver: UP RR, DELL AVE
WINCHESTER BLVD, Santa Clara, CA
Built 1968 Load: 24.3 t ADT: 9,500
UVAS RD
FairOver: UVAS CREEK
0.6 MI S/O CROY RD, Santa Clara, CA
Built 1928 Load: 24.3 t ADT: 1,040
ALMADEN EXPWY
FairOver: CANOAS CREEK
S/O ALMADEN RD JCT, Santa Clara, CA
Built 1960 Load: 24.3 t ADT: 40,560
SAN MARTIN AVE
FairOver: E LITTLE LLAGAS CREEK
0.2 MI E/O SH 101, Santa Clara, CA
Built 1972 Load: 24.3 t ADT: 6,080
E MIDDLEFIELD RD
FairOver: STEVENS CREEK
NEAR HWY 85, Santa Clara, CA
Built 1964 Load: 24.3 t ADT: 18,500
MOFFETT BLVD
FairOver: STEVENS CREEK
NEAR HWY 85, Santa Clara, CA
Built 1964 Load: 24.3 t ADT: 2,500
BENTON ST
FairOver: CALABAZAS CREEK
0.1 MI E LAWRENCE EXPRESS, Santa Clara, CA
Built 1960 Load: 24.3 t ADT: 9,750
CABRILLO AVE
FairOver: CALABAZAS CREEK
AT CALABAZAS BLVD, Santa Clara, CA
Built 1960 Load: 24.3 t ADT: 4,500
MONROE ST
FairOver: CALABAZAS CREEK
NEAR CALABAZAS BLVD, Santa Clara, CA
Built 1960 Load: 24.3 t ADT: 10,976
MCCOY AVE
FairOver: SAN TOMAS AQUINO CREEK
NEAR HARRIET AVE, Santa Clara, CA
Built 1970 Load: 24.3 t ADT: 5,009
TWIN CREEKS RD
FairOver: SAN TOMAS CREEK
NEAR QUITO RD, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 600
PADERO AVE
FairOver: CALABAZAS CREEK
NEAR PIERCE RD, Santa Clara, CA
Built 1975 Load: 24.3 t ADT: 169
CALABAZAS BLVD
FairOver: CALABAZAS CREEK
0.2 MI S MONROE ST, Santa Clara, CA
Built 1961 Load: 24.3 t ADT: 2,500
CENTRAL EXPRESSWAY
FairOver: CALABAZAS CREEK
0.5 MI E LAWRENCE EXPWY, Santa Clara, CA
Built 1968 Load: 24.3 t ADT: 1,750
LAWRENCE EXPWAY
FairOver: CALABAZAS CREEK
0.1 MI S BENTON ST, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 74,520
NIGHTINGALE AVE
FairOver: CANOAS CREEK
50 M S IRONWOOD DR, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 2,000
NARVAEZ AVE
FairOver: CANOAS CREEK
S/O AVENUE 10, Santa Clara, CA
Built 1971 Load: 24.3 t ADT: 250
CHERRY AVENUE
FairOver: ROSS CREEK
300 M N/O BRANHAM LANE, Santa Clara, CA
Built 1966 Load: 24.3 t ADT: 5,950
HOMESTEAD ROAD
FairOver: CALABAZAS CREEK
1000 FT W OF LAWRENCE EX, Santa Clara, CA
Built 1958 Load: 24.3 t ADT: 20,000
GREAT MALL PARKWAY
FairOver: PENETENCIA CREEK
SE OF ELMWOOD CORCTNL, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 9,500
CHURCH AVE
FairOver: LITTLE LLAGAS CREEK
0.3 MI E OF SH 101, Santa Clara, CA
Built 1972 Load: 24.3 t ADT: 1,290
FORTINI ROAD
FairOver: ARROYO CALERO
0.25 MI E MCKEAN RD, Santa Clara, CA
Built 1956 Load: 24.3 t ADT: 350
CORNING AVE
FairOver: PENITENCIA CREEK
AT ABEL ST, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 1,174
MARYLINN DR
FairOver: PENITENCIA CREEK
NEAR ABBOTT AVE, Santa Clara, CA
Built 1960 Load: 24.3 t ADT: 4,197
SYCAMORE AVENUE
FairOver: COYOTE CREEK
JNO MALAGUERRA AVENUE, Santa Clara, CA
Built 1977 Load: 24.3 t ADT: 500
VALLCO PARKWAY
FairOver: CALABAZAS CREEK
AT STEVENS CREEK BLVD, Santa Clara, CA
Built 1978 Load: 24.3 t ADT: 10,420
STATE ROUTE 9 NB
FairOver: HILLSIDE
05-SCR-009-2.11, Santa Cruz, CA
Built 1922 Load: 24.3 t ADT: 5,000
WATER ST
FairOver: SAN LORENZO RIVER
0.2 MI W OCEAN ST, Santa Cruz, CA
Built 1967 Load: 24.3 t ADT: 10,000
MT HERMON RD
FairOver: BEAN CREEK
1.8 MI E GRAHAM HILL RD, Santa Cruz, CA
Built 1971 Load: 24.3 t ADT: 19,400
OCEAN ST
FairOver: BRANCIFORTE CREEK
NEAR DAKOTA AVE, Santa Cruz, CA
Built 1963 Load: 24.3 t ADT: 10,000
Showing 10,451-10,500 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.