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
AVE T
FairOver: LITTLE ROCK CRK
0.5MI W/O 82ND ST E, Los Angeles, CA
Built 2000 Load: 40.5 t ADT: 13,905
GAGE AVE
FairOver: ACTA
40FT E/O ALAMEDA STR, Los Angeles, CA
Built 2000 Load: 40.5 t ADT: 12,226
SANTA ANA BLVD
FairOver: ACTA
30FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 40.5 t ADT: 6,108
IMPERIAL HWY
FairOver: ACTA
30FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 40.5 t ADT: 18,020
PALMER ST
FairOver: ACTA
20FT E/O ALAMEDA ST, Los Angeles, CA
Built 1999 Load: 40.5 t ADT: 3,224
VASQUEZ CYN RD
FairOver: BOUQUET CRK
150FT E/O BOUQUET CYN, Los Angeles, CA
Built 2010 Load: 40.5 t ADT: 6,353
PORT WINE ROAD
FairOver: SLATE CREEK OVERFLOW
2 MI SE/O QUIN-LAPORT RD, Plumas, CA
Built 1936 Load: 40.5 t ADT: 30
INTERSTATE 10 WB
FairOver: TECKA DITCH
08-RIV-010-R94.73, Riverside, CA
Built 1967 Load: 40.5 t ADT: 23,100
INTERSTATE 10 EB
FairOver: TECKA DITCH
08-RIV-010-R94.75, Riverside, CA
Built 1967 Load: 40.5 t ADT: 23,100
INTERSTATE 10 WB
FairOver: DETERMINATION DITCH
08-RIV-010-R90.98, Riverside, CA
Built 1967 Load: 40.5 t ADT: 23,000
STATE ROUTE 16
FairOver: COSUMNES RIVER
03-SAC-016-19.72, Sacramento, CA
Built 1952 Load: 40.5 t ADT: 11,100
US 50 (I-305) WB
FairOver: RIVERSIDE BLVD
03-SAC-050-L1.06-SAC, Sacramento, CA
Built 1967 Load: 40.5 t ADT: 115,500
US 50 (I-305) EB
FairOver: RIVERSIDE BLVD
03-SAC-050-L1.06-SAC, Sacramento, CA
Built 1967 Load: 40.5 t ADT: 115,500
INTERSTATE 15 SB
FairOver: MWD PIPELINE
08-SBD-015-3.94-RCUC, San Bernardino, CA
Built 1975 Load: 40.5 t ADT: 98,000
E. ARROW HWY
FairOver: SAN ANTONIO CREEK CHAN
0.7 MI W CENTRAL AVE, San Bernardino, CA
Built 1958 Load: 40.5 t ADT: 25,500
INTERSTATE 15 NB
FairOver: ESCONDIDO FLD CNTRL CHNL
11-SD-015-R30.81-ESD, San Diego, CA
Built 1977 Load: 40.5 t ADT: 97,000
FRIARS RD
FairOver: SAN DIEGO CON CO UC
0.7MI E/O RTE 163, San Diego, CA
Built 1968 Load: 40.5 t ADT: 32,204
INTERSTATE 580 EB
FairOver: VALPICO ROAD
10-SJ-580-9.71, San Joaquin, CA
Built 1966 Load: 40.5 t ADT: 13,300
INTERSTATE 580 WB
FairOver: VALPICO ROAD
10-SJ-580-9.71, San Joaquin, CA
Built 1966 Load: 40.5 t ADT: 13,300
STATE ROUTE 1
FairOver: LOS BERROS CREEK
05-SLO-001-10.35, San Luis Obispo, CA
Built 1952 Load: 40.5 t ADT: 6,200
CREEKSIDE WAY
FairOver: LOS GATOS CREEK
INTX WITH CAMPISI WAY, Santa Clara, CA
Built 1989 Load: 40.5 t ADT: 11,509
QUARTZ VALLEY ROAD
FairOver: SHACKLEFORD CREEK
3.6 MI S SCOTT RIVER RD, Siskiyou, CA
Built 1967 Load: 40.5 t ADT: 330
SALEM ROAD
FairOver: OLD ALAMO CREEK
1.0 MI S BROWN RD, Solano, CA
Built 1966 Load: 40.5 t ADT: 44
AVE 88
FairOver: DEER CREEK
0.2 MI E OF RD 176, Tulare, CA
Built 1971 Load: 40.5 t ADT: 300
SB 23- NB 101
FairOver: THOUSAND OAKS BLVD
07-VEN-023-R3.56-THOK, Ventura, CA
Built 1970 Load: 40.5 t ADT: 14,600
Senator Wash Road
FairOver: All-American Canal
15.2 miles NE of Yuma, Imperial, CA
Built 1978 Load: 40.6 t ADT: 200
INTERSTATE 580 EB
FairOver: SCHAEFER RANCH ROAD
04-ALA-580-R23.86, Alameda, CA
Built 1976 Load: 40.8 t ADT: 103,500
STATE ROUTE 162
FairOver: CHEROKEE CANAL
03-BUT-162-6.67, Butte, CA
Built 1956 Load: 40.8 t ADT: 930
LONGFELLOW AVE
FairOver: LINDO CHANNEL
BTWN E 1ST ST & MANZANITA, Butte, CA
Built 1965 Load: 40.8 t ADT: 15,546
OBYRNES FERRY RD
FairOver: BLACK CREEK
2.0 MI S INTX WITH SR 4, Calaveras, CA
Built 1972 Load: 40.8 t ADT: 3,082
MAXWELL ROAD
FairOver: STONE CORRAL CREEK
4.5 MI EAST OF I-5, Colusa, CA
Built 1971 Load: 40.8 t ADT: 2,306
STATE ROUTE 41
FairOver: MURPHY SLOUGH
06-FRE-041-R3.94, Fresno, CA
Built 1964 Load: 40.8 t ADT: 19,500
U.S. HIGHWAY 101
FairOver: E BRANCH S FRK EEL RIV
01-HUM-101-R8.80, Humboldt, CA
Built 1968 Load: 40.8 t ADT: 5,700
INTERSTATE 5 SB
FairOver: CALIFORNIA AQUEDUCT
06-KIN-005-14.92, Kings, CA
Built 1967 Load: 40.8 t ADT: 14,500
BUTTS CYN RD
FairOver: BUCKSNORT CREEK
6.8 MI SE/O SR 29, Lake, CA
Built 1969 Load: 40.8 t ADT: 1,900
VINELAND AVE
FairOver: WALNUT CRK
0.3MI S/O I-10 FWY, Los Angeles, CA
Built 1958 Load: 40.8 t ADT: 5,080
135TH ST
FairOver: DOMINGUEZ HOLLYPARK CHAN
200FT E/O CRENSHAW BLVD, Los Angeles, CA
Built 1961 Load: 40.8 t ADT: 11,615
ZOE AVE
FairOver: ACTA
40FT E/O ALAMEDA AVE, Los Angeles, CA
Built 2000 Load: 40.8 t ADT: 2,865
MRTN LUTHER KNG BL
FairOver: ACTA
30FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 40.8 t ADT: 7,437
134TH ST
FairOver: ACTA
25FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 40.8 t ADT: 4,631
JERONIMO ROAD
FairOver: ALISO CREEK
0.35 MI. S/O TORO ROAD, Orange, CA
Built 1974 Load: 40.8 t ADT: 28,281
1ST AVENUE
FairOver: NORTH FORK FEATHER RIVER
0.1 MI S OF S.H. 36, Plumas, CA
Built 1947 Load: 40.8 t ADT: 960
INTERSTATE 10 WB
FairOver: UNION DITCH
08-RIV-010-R97.81, Riverside, CA
Built 1967 Load: 40.8 t ADT: 23,000
INTERSTATE 15 SB
FairOver: TEMESCAL CANYON ROAD
08-RIV-015-33.25, Riverside, CA
Built 1979 Load: 40.8 t ADT: 60,500
WASHINGTON STREET
FairOver: WHITEWATER RIVER
0.2 MI. N/O ST RTE 111, Riverside, CA
Built 1976 Load: 40.8 t ADT: 37,370
INTERSTATE 40
FairOver: CRESTVIEW WASH
08-SBD-040-R132.18, San Bernardino, CA
Built 1971 Load: 40.8 t ADT: 13,600
STATE ROUTE 58 EB
FairOver: BNSF RY, UP RR, & AMTRAK
08-SBD-058-R33.41-BSW, San Bernardino, CA
Built 1997 Load: 40.8 t ADT: 6,750
E210-N15 CONNECTOR
FairOver: EAST ETIWANDA CREEK
08-SBD-210-11.02-RCUC, San Bernardino, CA
Built 1976 Load: 40.8 t ADT: 3,001
FLOOD ROAD
FairOver: MORMON SLOUGH
0.9 MI WEST OF FINE ROAD, San Joaquin, CA
Built 1973 Load: 40.8 t ADT: 401
STATE ROUTE 58
FairOver: NAVAJO CREEK
05-SLO-058-R29.92, San Luis Obispo, CA
Built 1984 Load: 40.8 t ADT: 495
Showing 15,901-15,950 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.