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
BAR ROAD
GoodOver: KLAMATH RIVER
AT SR 96, Siskiyou, CA
Built 1998 Load: 40.5 t ADT: 21
SALMON RIVER ROAD
GoodOver: MERRILL CREEK
SALMON RIVER ROAD, Siskiyou, CA
Built 2002 Load: 40.5 t ADT: 250
COLES RD
GoodOver: WESTSIDE CANAL
0.5 MI E CRANMORE RD, Sutter, CA
Built 1978 Load: 40.5 t ADT: 44
INTERSTATE 5 SB
GoodOver: COYOTE CREEK
02-TEH-005-R20.50, Tehama, CA
Built 1965 Load: 40.5 t ADT: 14,000
INTERSTATE 5 NB
GoodOver: COYOTE CREEK
02-TEH-005-R20.52, Tehama, CA
Built 1965 Load: 40.5 t ADT: 14,000
INTERSTATE 5 NB
GoodOver: BRANNIN CREEK
02-TEH-005-R5.50, Tehama, CA
Built 1966 Load: 40.5 t ADT: 12,300
STATE ROUTE 3
GoodOver: COFFEE CREEK
02-TRI-003-67.70, Trinity, CA
Built 1962 Load: 40.5 t ADT: 645
AVENIDA DEL RECREO
GoodOver: THACHER CREEK
0.2 MI S OF S.R. 150, Ventura, CA
Built 1967 Load: 40.5 t ADT: 200
STATE ROUTE 2
GoodOver: LA CANADA CANYON
07-LA-002-R25.51, Los Angeles, CA
Built 1930 Load: 40.8 t ADT: 6,600
ROUTE 10 WB
GoodOver: ALHAMBRA WASH
07-LA-010-25.50-RSMD, Los Angeles, CA
Built 1953 Load: 40.8 t ADT: 106,250
INTERSTATE 10
GoodOver: TYLER AVE
07-LA-010-29.03-EMTE, Los Angeles, CA
Built 1956 Load: 40.8 t ADT: 233,000
U.S. HIGHWAY 101
GoodOver: HELIOTROPE DR
07-LA-101-4.58-LA, Los Angeles, CA
Built 1950 Load: 40.8 t ADT: 175,000
INTERSTATE 405
GoodOver: SAN FERNANDO MISSION BL
07-LA-405-47.24-LA, Los Angeles, CA
Built 1963 Load: 40.8 t ADT: 142,000
GLADSTONE ST
GoodOver: BIG DALTON WASH
0.5MI W/O GRAND AVE, Los Angeles, CA
Built 1960 Load: 40.8 t ADT: 9,541
EAST RUSTIC RD
GoodOver: RUSTIC CANYON CHANNEL
0.2 M N/O SYCAMORE RD, Los Angeles, CA
Built 1982 Load: 40.8 t ADT: 130
ARLETA AVE
GoodOver: PACOIMA WASH DIV CHANNEL
30 M E. OF DEVONSHIRE ST, Los Angeles, CA
Built 1952 Load: 40.8 t ADT: 14,375
LA TUNA CANYON RD
GoodOver: HANSEN HEIGHTS CHANNEL
0.I MI E OF SUNLAND BLVD, Los Angeles, CA
Built 1966 Load: 40.8 t ADT: 9,910
190TH STREET
GoodOver: DOMINGUEZ CHANNEL
BTW FIGUEROA ST/VERMNT AV, Los Angeles, CA
Built 1966 Load: 40.8 t ADT: 35,500
SATICOY STREET
GoodOver: TUJUNGA WASH
0.3 MI E/O WOODMAN AVE, Los Angeles, CA
Built 1952 Load: 40.8 t ADT: 26,680
WHITING WOODS ROAD
GoodOver: VERDUGO WASH
0.1MI W/O HONOLULU AV, Los Angeles, CA
Built 1967 Load: 40.8 t ADT: 1,530
US HIGHWAY 101 SB
GoodOver: ORRS CREEK
01-MEN-101-R25.01-UKI, Mendocino, CA
Built 1964 Load: 40.8 t ADT: 10,450
US HIGHWAY 101 NB
GoodOver: ORRS CREEK
01-MEN-101-R25.01-UKI, Mendocino, CA
Built 1964 Load: 40.8 t ADT: 10,450
ENTIDAD STREET
GoodOver: ENGLISH CANYON CHANNEL
300' W/O LOS ALISOS BLVD, Orange, CA
Built 1976 Load: 40.8 t ADT: 1,540
FDR 96
GoodOver: MIDDLE FK. AMERICAN RIV
S22 T15N R14E, Placer, CA
Built 1965 Load: 40.8 t ADT: 200
INTERSTATE 10 EB
GoodOver: UNION DITCH
08-RIV-010-R97.81, Riverside, CA
Built 1967 Load: 40.8 t ADT: 23,000
INTERSTATE 10
GoodOver: RAMON WASH
08-RIV-010-35.61, Riverside, CA
Built 1955 Load: 40.8 t ADT: 87,000
INTERSTATE 15 NB
GoodOver: INDIAN WASH
08-RIV-015-30.09, Riverside, CA
Built 1980 Load: 40.8 t ADT: 60,500
BOB HOPE DRIVE
GoodOver: WHITEWATER RIVER
0.6 MI. N/O ST RTE 111, Riverside, CA
Built 1969 Load: 40.8 t ADT: 21,000
STATE ROUTE 129
GoodOver: PAJARO RIVER
05-SBT-129-0.01, San Benito, CA
Built 1949 Load: 40.8 t ADT: 10,600
INTERSTATE 40
GoodOver: CRESTVIEW WASH
08-SBD-040-R132.18, San Bernardino, CA
Built 1971 Load: 40.8 t ADT: 13,600
INTERSTATE 10 EB
GoodOver: SANTA ANA RIVER
08-SBD-010-R23.82-COL, San Bernardino, CA
Built 1958 Load: 40.8 t ADT: 102,000
STATE ROUTE 210 EB
GoodOver: EAST ETIWANDA CREEK
08-SBD-210-11.02-RCUC, San Bernardino, CA
Built 2000 Load: 40.8 t ADT: 93,000
INTERSTATE 8 EB
GoodOver: VIEJAS CREEK
11-SD-008-R31.78, San Diego, CA
Built 1969 Load: 40.8 t ADT: 12,750
INTERSTATE 8 EB
GoodOver: UN GALLO RD
11-SD-008-R45.79, San Diego, CA
Built 1974 Load: 40.8 t ADT: 8,100
LOWER SACTO RD
GoodOver: BEAR CREEK
0.5 MI N/O ROYAL OAKS DR, San Joaquin, CA
Built 1963 Load: 40.8 t ADT: 12,932
STATE ROUTE 1
GoodOver: VILLA CREEK
05-SLO-001-40.29, San Luis Obispo, CA
Built 1962 Load: 40.8 t ADT: 10,300
H STREET
GoodOver: YERBA BUENA CREEK
0.02 MI S/W OF SH 58, San Luis Obispo, CA
Built 1948 Load: 40.8 t ADT: 100
US HIGHWAY 101 SB
GoodOver: SANTA YNEZ RIVER
05-SB-101-R56.64, Santa Barbara, CA
Built 1965 Load: 40.8 t ADT: 11,000
STATE ROUTE 1 SB
GoodOver: CONSTELLATION ROAD
05-SB-001-R25.07, Santa Barbara, CA
Built 1968 Load: 40.8 t ADT: 9,000
STATE ROUTE 1 NB
GoodOver: CONSTELLATION ROAD
05-SB-001-R25.07, Santa Barbara, CA
Built 1968 Load: 40.8 t ADT: 9,000
STATE ROUTE 82
GoodOver: CALABAZAS CREEK
04-SCL-082-13.66-SCL, Santa Clara, CA
Built 1958 Load: 40.8 t ADT: 32,000
U.S. HWY 101 (NB)
GoodOver: UP RR & AMTRAK
04-SCL-101-R5.08, Santa Clara, CA
Built 1973 Load: 40.8 t ADT: 26,000
COLLEGE VIEW DRIVE
GoodOver: CHURN CREEK
200' E HAWLEY RD, Shasta, CA
Built 1974 Load: 40.8 t ADT: 300
LEVERONI RD
GoodOver: SONOMA CREEK
0.65 MI W JCT WITH SR 12, Sonoma, CA
Built 1969 Load: 40.8 t ADT: 10,400
STATE ROUTE 120
GoodOver: BLITZ CREEK
10-STA-120-12.22, Stanislaus, CA
Built 1915 Load: 40.8 t ADT: 12,000
GEER ROAD
GoodOver: TUOLUMNE RIVER
1.3 MI S STATE ROUTE 132, Stanislaus, CA
Built 1960 Load: 40.8 t ADT: 13,202
MARGUERITE AVENUE
GoodOver: JEWETT CREEK
0.3 MI N OF S AVE, Tehama, CA
Built 1973 Load: 40.8 t ADT: 2,940
GYLE RD
GoodOver: CA NORTHERN RR (CFNR)
3 MI E/O I-5, Tehama, CA
Built 1966 Load: 40.8 t ADT: 600
STATE ROUTE 36
GoodOver: MAD RIVER
02-TRI-036-R2.73, Trinity, CA
Built 1958 Load: 40.8 t ADT: 1,300
SAND CREEK RD
GoodOver: SAND CREEK
.15 MI S OF FRE CO LINE, Tulare, CA
Built 1947 Load: 40.8 t ADT: 150
Showing 24,751-24,800 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 |