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
US HIGHWAY 395
GoodOver: LOS ANGELES AQUEDUCT
09-INY-395-31.28, Inyo, CA
Built 1928 Load: 29.2 t ADT: 12,600
STATE ROUTE 119
GoodOver: KERN RIVER
06-KER-119-15.08, Kern, CA
Built 1924 Load: 29.2 t ADT: 10,600
INTERSTATE 5 NB
GoodOver: MARIETTA STREET
07-LA-005-16.29-LA, Los Angeles, CA
Built 1960 Load: 29.2 t ADT: 129,000
INTERSTATE 5 SB
GoodOver: MARIETTA STREET
07-LA-005-16.29-LA, Los Angeles, CA
Built 1960 Load: 29.2 t ADT: 129,000
INTERSTATE 5 SB
GoodOver: FRAZIER MT PK RD
07-LA-005-R88.56, Los Angeles, CA
Built 1966 Load: 29.2 t ADT: 37,708
INTERSTATE 5
GoodOver: FRAZIER MT PK RD
07-LA-005-R88.56, Los Angeles, CA
Built 1966 Load: 29.2 t ADT: 37,708
LAKE HUGHES RD
GoodOver: VIOLIN CRK
1.0MI E/O I-5 FWY, Los Angeles, CA
Built 1971 Load: 29.2 t ADT: 2,958
STAGG ST
GoodOver: BULL CREEK
BALBOA & RUFFNER AV, Los Angeles, CA
Built 1955 Load: 29.2 t ADT: 2,000
PALM AVENUE
GoodOver: POSO SLOUGH
1.65 MI S OF SR 152, Merced, CA
Built 1966 Load: 29.2 t ADT: 1,610
DALE AVENUE
GoodOver: CARBON CREEK CHANNEL
0.2 MI. S/O LINCOLN AVE., Orange, CA
Built 1959 Load: 29.2 t ADT: 17,100
INTERSTATE 10 WB
GoodOver: META DITCH
08-RIV-010-R110.99, Riverside, CA
Built 1966 Load: 29.2 t ADT: 10,700
INTERSTATE 10 WB
GoodOver: THREE STAR DITCH
08-RIV-010-R87.96, Riverside, CA
Built 1967 Load: 29.2 t ADT: 11,500
INTERSTATE 10 EB
GoodOver: THREE STAR DITCH
08-RIV-010-R87.96, Riverside, CA
Built 1967 Load: 29.2 t ADT: 11,500
SUNRISE BLVD
GoodOver: LAGUNA CREEK
100 YD SOUTH S.R. 16, Sacramento, CA
Built 1967 Load: 29.2 t ADT: 10,676
STATE ROUTE 38
GoodOver: SANTA ANA RIVER
08-SBD-038-30.86, San Bernardino, CA
Built 1960 Load: 29.2 t ADT: 2,500
STATE ROUTE 18
GoodOver: HILLSIDE
08-SBD-018-R11.90, San Bernardino, CA
Built 1966 Load: 29.2 t ADT: 16,800
STATE ROUTE 79
GoodOver: S BRNCH SANTA YSABEL CRK
11-SD-079-21.63, San Diego, CA
Built 1941 Load: 29.2 t ADT: 3,150
BRUELLA RD
GoodOver: MOKELUMNE RIVER
1.5 MI N SH 12 IN VICTOR, San Joaquin, CA
Built 1958 Load: 29.2 t ADT: 1,205
FLOOD ROAD
GoodOver: CHANNEL B
1.6 MI W ESCALON-BELTA RD, San Joaquin, CA
Built 1967 Load: 29.2 t ADT: 166
US HIGHWAY 101 NB
GoodOver: SAN LUIS OBISPO CREEK
05-SLO-101-R21.49, San Luis Obispo, CA
Built 1940 Load: 29.2 t ADT: 31,000
STATE ROUTE 1
GoodOver: MORRO CREEK
05-SLO-001-30.00, San Luis Obispo, CA
Built 1962 Load: 29.2 t ADT: 24,000
STATE ROUTE 1
GoodOver: SANTA ROSA CREEK
05-SLO-001-49.89, San Luis Obispo, CA
Built 1963 Load: 29.2 t ADT: 6,000
STAGE RD
GoodOver: SAN GREGORIO CREEK
0.1 MI S OF S.H. 84, San Mateo, CA
Built 1981 Load: 29.2 t ADT: 272
WILLOWBROOK DR
GoodOver: CORTE MADERA CREEK
0.2 MI S PORTOLA DR, San Mateo, CA
Built 1989 Load: 29.2 t ADT: 5,000
STEVENS CANYON RD
GoodOver: STEVENS CR (STEVENS CYN)
0.9 MI S/O MONTEBELLO RD, Santa Clara, CA
Built 1964 Load: 29.2 t ADT: 1,330
UVAS RD
GoodOver: LITTLE UVAS CREEK
0.2 MI N/O CROY RD, Santa Clara, CA
Built 1928 Load: 29.2 t ADT: 1,040
SAN FERNANDO ST EB
GoodOver: GUADALUPE RIVER
PARK AVE & SANTA CLARA ST, Santa Clara, CA
Built 1988 Load: 29.2 t ADT: 4,150
MISTLETOE LN
GoodOver: WEST BRANCH CHURN CREEK
INTX MSTOE LN & CANBY RD, Shasta, CA
Built 1954 Load: 29.2 t ADT: 7,307
MONTE VISTA TERRAC
GoodOver: HILLSIDE
NEAR BR. 20C0403, Sonoma, CA
Built 2008 Load: 29.2 t ADT: 211
AFTON RD
GoodOver: LATERAL "A"
0.5 MI E/O WICKMAN RD, Butte, CA
Built 1998 Load: 29.5 t ADT: 513
SELLERS AVE
GoodOver: E CONTRA COSTA ID CANAL
0.4 MI N OF SR 4, Contra Costa, CA
Built 1967 Load: 29.5 t ADT: 3,309
U.S. HIGHWAY 101
GoodOver: GILBERT CREEK
01-DN-101-45.30, Del Norte, CA
Built 1953 Load: 29.5 t ADT: 7,300
STATE ROUTE 198
GoodOver: HANS GRIEVE CANYON
06-FRE-198-4.34, Fresno, CA
Built 1954 Load: 29.5 t ADT: 1,200
INTERSTATE 5
GoodOver: WILSON CREEK
03-GLE-005-R12.58, Glenn, CA
Built 1966 Load: 29.5 t ADT: 12,750
INTERSTATE 5
GoodOver: WILSON CREEK
03-GLE-005-R12.58, Glenn, CA
Built 1966 Load: 29.5 t ADT: 12,750
CO RD 'D'
GoodOver: TEHAMA-COLUSA CANAL
1.4 MI N CO RD #33, Glenn, CA
Built 1975 Load: 29.5 t ADT: 114
CO RD #28
GoodOver: TEHAMA-COLUSA CANAL
0.4 MI EAST OF CO RD 'D', Glenn, CA
Built 1975 Load: 29.5 t ADT: 155
CO RD #25
GoodOver: TEHAMA-COLUSA CANAL
0.5 MI EAST CO RD 99W, Glenn, CA
Built 1975 Load: 29.5 t ADT: 223
CO RD #24
GoodOver: TEHAMA-COLUSA CANAL
0.1 MI WEST CO RD 'M', Glenn, CA
Built 1975 Load: 29.5 t ADT: 500
STATE ROUTE 86 SB
GoodOver: CENTRAL MAIN CANAL
11-IMP-086-17.82, Imperial, CA
Built 1948 Load: 29.5 t ADT: 7,700
STATE ROUTE 299
GoodOver: BNSF RY
02-LAS-299-11.89, Lassen, CA
Built 1977 Load: 29.5 t ADT: 1,800
STATE ROUTE 1
GoodOver: ESCONDIDO CREEK
07-LA-001-51.79, Los Angeles, CA
Built 1926 Load: 29.5 t ADT: 26,500
INTERSTATE 5
GoodOver: MARIETTA STREET
07-LA-005-16.29-LA, Los Angeles, CA
Built 1960 Load: 29.5 t ADT: 1,450
EB10-LA CIENEGA BL
GoodOver: GARTH AVE
07-LA-010-R8.65-LA, Los Angeles, CA
Built 1964 Load: 29.5 t ADT: 3,200
INTERSTATE 210 WB
GoodOver: POLK STREET
07-LA-210-R3.28-LA, Los Angeles, CA
Built 1969 Load: 29.5 t ADT: 38,000
N110-W91 CONNECTOR
GoodOver: ACCESS RD (DIRT)
07-LA-110-9.95-LA, Los Angeles, CA
Built 1985 Load: 29.5 t ADT: 5,250
MULHOLLAND HWY
GoodOver: LAS VIRGENES CR
3.5MI S/O US-101 FWY, Los Angeles, CA
Built 1941 Load: 29.5 t ADT: 1,122
PECK RD
GoodOver: SAN GABRIEL RIV
0.2MI S/O SR-60 FWY, Los Angeles, CA
Built 1952 Load: 29.5 t ADT: 14,317
CULLEN AVE
GoodOver: LITTLE DALTON WASH
0.1MI N/O FOOTHILL BVLD, Los Angeles, CA
Built 1959 Load: 29.5 t ADT: 3,687
ARTESIA BLVD
GoodOver: DOMINGUEZ CHAN
0.1MI W/O WESTERN AVE, Los Angeles, CA
Built 1958 Load: 29.5 t ADT: 37,440
Showing 19,451-19,500 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.