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
W54-N5 CONNECTOR
GoodOver: MTDB LRT
11-SD-054-0.11L-NATC, San Diego, CA
Built 1988 Load: 32.4 t ADT: 32,441
N5-E54 CONNECTOR
GoodOver: MTDB LRT
11-SD-005-9.17-NATC, San Diego, CA
Built 1988 Load: 32.4 t ADT: 23,000
STATE ROUTE 54 WB
GoodOver: UPPER PARADISE CREEK
11-SD-054-1.28L-CHV, San Diego, CA
Built 1990 Load: 32.4 t ADT: 45,500
S15-OCEANVIEW OFF
GoodOver: CHOLLAS CREEK
11-SD-015-R0.70-SD, San Diego, CA
Built 1978 Load: 32.4 t ADT: 10,000
INTERSTATE 15 SB
GoodOver: SAN LUIS REY RIVER
11-SD-015-R45.92, San Diego, CA
Built 1980 Load: 32.4 t ADT: 70,000
INTERSTATE 15 NB
GoodOver: SAN LUIS REY RIVER
11-SD-015-R45.92, San Diego, CA
Built 1980 Load: 32.4 t ADT: 70,000
W8-FAIRMOUNT OFF
GoodOver: ALVARADO CANYON RD EB
11-SD-008-6.36-SD, San Diego, CA
Built 1979 Load: 32.4 t ADT: 10,300
INTERSTATE 15 SB
GoodOver: CAMINO DEL REY
11-SD-015-R41.82, San Diego, CA
Built 1980 Load: 32.4 t ADT: 65,000
INTERSTATE 15 NB
GoodOver: CAMINO DEL REY
11-SD-015-R41.82, San Diego, CA
Built 1980 Load: 32.4 t ADT: 56,500
STATE ROUTE 78
GoodOver: GUEJITO CREEK
11-SD-078-R26.79-ESD, San Diego, CA
Built 1979 Load: 32.4 t ADT: 7,900
STATE ROUTE 52 WB
GoodOver: SAN CLEMENTE CREEK
11-SD-052-3.87-SD, San Diego, CA
Built 1987 Load: 32.4 t ADT: 50,500
STATE ROUTE 52 EB
GoodOver: SAN CLEMENTE CREEK
11-SD-052-3.85-SD, San Diego, CA
Built 1987 Load: 32.4 t ADT: 50,500
STATE ROUTE 76
GoodOver: WEST PAUMA CREEK
11-SD-076-29.23, San Diego, CA
Built 1970 Load: 32.4 t ADT: 10,800
STATE ROUTE 94
GoodOver: JAMUL CREEK
11-SD-094-22.80, San Diego, CA
Built 1976 Load: 32.4 t ADT: 12,800
CAMINO DEL REY
GoodOver: MOOSA CANYON CREEK
11-SD-000-R41.81, San Diego, CA
Built 1980 Load: 32.4 t ADT: 1,000
STATE ROUTE 78
GoodOver: ESCONDIDO CREEK
11-SD-078-T19.19-ESD, San Diego, CA
Built 1970 Load: 32.4 t ADT: 22,500
INTERSTATE 15 SB
GoodOver: RAINBOW CREEK
11-SD-015-R52.49, San Diego, CA
Built 1985 Load: 32.4 t ADT: 72,000
INTERSTATE 15 NB
GoodOver: RAINBOW CREEK
11-SD-015-R52.49, San Diego, CA
Built 1985 Load: 32.4 t ADT: 72,000
W8-N67 CONNECTOR
GoodOver: FORESTER CREEK
11-SD-008-15.85-ECJ, San Diego, CA
Built 1966 Load: 32.4 t ADT: 2,500
E54-S805 CONNECTOR
GoodOver: SWEETWATER RIVER
11-SD-054-1.89-CHV, San Diego, CA
Built 1975 Load: 32.4 t ADT: 82,000
STATE ROUTE 78
GoodOver: SANTA MARIA CREEK
11-SD-078-35.33, San Diego, CA
Built 1988 Load: 32.4 t ADT: 10,500
STATE ROUTE 94
GoodOver: SWEETWATER RIVER
11-SD-094-15.27, San Diego, CA
Built 1987 Load: 32.4 t ADT: 19,800
INTERSTATE 15
GoodOver: HORSE RANCH CREEK
11-SD-015-R47.91, San Diego, CA
Built 1981 Load: 32.4 t ADT: 22,000
STATE ROUTE 54 WB
GoodOver: TOWN & COUNTRY RCB
11-SD-054-1.39L, San Diego, CA
Built 1990 Load: 32.4 t ADT: 45,500
STATE ROUTE 52 WB
GoodOver: OAK CANYON
11-SD-052-11.80-SD, San Diego, CA
Built 1993 Load: 32.4 t ADT: 49,000
STATE ROUTE 52 EB
GoodOver: OAK CANYON
11-SD-052-11.80-SD, San Diego, CA
Built 1993 Load: 32.4 t ADT: 49,000
STATE ROUTE 52 WB
GoodOver: SPRING CANYON
11-SD-052-12.40-SD, San Diego, CA
Built 1993 Load: 32.4 t ADT: 49,000
STATE ROUTE 52 EB
GoodOver: SPRING CANYON
11-SD-052-12.40-SD, San Diego, CA
Built 1993 Load: 32.4 t ADT: 49,000
STATE ROUTE 79
GoodOver: WARNER SPR RANCH CRK
11-SD-079-35.42, San Diego, CA
Built 1986 Load: 32.4 t ADT: 1,700
STATE ROUTE 76
GoodOver: FIRESIDE CHANNEL
11-SD-076-M2.67-OCN, San Diego, CA
Built 1992 Load: 32.4 t ADT: 55,000
STATE ROUTE 76
GoodOver: JENNIFER DRAIN
11-SD-076-12.90-OCN, San Diego, CA
Built 1992 Load: 32.4 t ADT: 21,600
STATE ROUTE 76
GoodOver: HORSE RANCH CREEK
11-SD-076-17.75, San Diego, CA
Built 1996 Load: 32.4 t ADT: 12,900
BONITA ROAD
GoodOver: RICE CANYON
11-SD-000--CHV, San Diego, CA
Built 1973 Load: 32.4 t ADT: 30,000
INTERSTATE 5
GoodOver: CARMEL VALLEY CREEK
11-SD-005-R32.72-SD, San Diego, CA
Built 1998 Load: 32.4 t ADT: 203,000
N5-E56 CONNECTOR
GoodOver: CARMEL VALLEY CREEK
11-SD-005-R32.72-SD, San Diego, CA
Built 1998 Load: 32.4 t ADT: 30,000
SR 56 ON-RAMP
GoodOver: GONZALES CREEK
11-SD-056-2.97-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 2,500
STATE ROUTE 56
GoodOver: GONZALES CREEK
11-SD-056-2.97-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 27,000
SR 56 OFF RAMP
GoodOver: GONZALES CREEK
11-SD-056-2.97-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 2,500
STATE ROUTE 56 WB
GoodOver: SOLTERRA VISTA PKWY
11-SD-056-4.86-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 27,000
STATE ROUTE 56 EB
GoodOver: SOLTERRA VISTA PKWY
11-SD-056-4.86-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 27,000
STATE ROUTE 56
GoodOver: MCGONIGLE CREEK
11-SD-056-5.42-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 27,000
STATE ROUTE 56
GoodOver: MCGONIGLE CREEK
11-SD-056-5.42-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 27,000
STATE ROUTE 56
GoodOver: CAMINO DEL SUR
11-SD-056-6.12-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 27,000
STATE ROUTE 56
GoodOver: CAMINO DEL SUR
11-SD-056-6.12-SD, San Diego, CA
Built 2004 Load: 32.4 t ADT: 27,000
70TH STREET
GoodOver: MTDB LRT & SDIV RR
11-SD-000-0.00, San Diego, CA
Built 2006 Load: 32.4 t ADT: 19,200
I-8 EB ON/OFF RAMP
GoodOver: 70TH ST ON/OFF RAMP OH
11-SD-008-9.65, San Diego, CA
Built 2006 Load: 32.4 t ADT: 15,000
RANCHOBERNARDO DAR
GoodOver: NONE
11-SD-015-M23.30-SD, San Diego, CA
Built 2008 Load: 32.4 t ADT: 2,600
RANCHOBERNARDO DAR
GoodOver: NONE
11-SD-015-M23.30-SD, San Diego, CA
Built 2008 Load: 32.4 t ADT: 2,600
RANCHOBERNARDO DAR
GoodOver: NONE
11-SD-015-M23.30-SD, San Diego, CA
Built 2008 Load: 32.4 t ADT: 2,600
RANCHOBERNARDO DAR
GoodOver: NONE
11-SD-015-M23.30-SD, San Diego, CA
Built 2008 Load: 32.4 t ADT: 2,600
Showing 22,451-22,500 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |