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
FLOWER ST
FairOver: SANTIAGO CREEK CHANNEL
0.3 MI N SANTA CLARA AVE, Orange, CA
Built 1930 Load: 35.6 t ADT: 5,500
EB CERRITOS AVE
FairOver: COYOTE CREEK CHANNEL
0.2 MI. W/O LOS ALAMITOS, Orange, CA
Built 1956 Load: 35.6 t ADT: 29,391
INTERSTATE 10 EB
FairOver: 44TH AVENUE
08-RIV-010-R56.57-IND, Riverside, CA
Built 1972 Load: 35.6 t ADT: 28,500
STATE ROUTE 156
FairOver: SAN JUAN CREEK
05-SBT-156-3.56, San Benito, CA
Built 1961 Load: 35.6 t ADT: 26,000
INTERSTATE 40 WB
FairOver: SAND HILL WASH
08-SBD-040-R49.04, San Bernardino, CA
Built 1968 Load: 35.6 t ADT: 8,150
INTERSTATE 40 EB
FairOver: SAND HILL WASH
08-SBD-040-R49.04, San Bernardino, CA
Built 1968 Load: 35.6 t ADT: 8,150
PAVILLION S OFFRMP
FairOver: UP RR SPUR
08-SBD-010-R22.82-COL, San Bernardino, CA
Built 1970 Load: 35.6 t ADT: 5,400
ODELL AVENUE
FairOver: WALKER SLOUGH
NORTH OF DOWNING AVE, San Joaquin, CA
Built 1970 Load: 35.6 t ADT: 1,814
BUCKLEY RD
FairOver: E BR SAN LUIS OBISPO CRK
1.5 MI E US 101, San Luis Obispo, CA
Built 1978 Load: 35.6 t ADT: 4,396
KINEVAN RD
FairOver: SAN JOSE CREEK
0.1 MI WEST OF SR 154, Santa Barbara, CA
Built 1950 Load: 35.6 t ADT: 50
GOLD ST
FairOver: GUADALUPE RIVER
0.4 MI N SH 237, Santa Clara, CA
Built 1964 Load: 35.6 t ADT: 4,460
DESCHUTES RD
FairOver: UP RR, AMTRAK, BARNEY ST
0.35 MI N/E SR 273, Shasta, CA
Built 1966 Load: 35.6 t ADT: 4,530
MOUNTAIN HOUSE RD
FairOver: NORTH FORK OREGON CREEK
9.9 MI SOUTH OF RTE 49, Sierra, CA
Built 1966 Load: 35.6 t ADT: 75
MILL STATION RD
FairOver: ATASCADERO CREEK
0.25 MI E FERGUSON RD, Sonoma, CA
Built 1964 Load: 35.6 t ADT: 1,450
FELTA RD
FairOver: FELTA CREEK
0.3 MI W OF WESTSIDE RD, Sonoma, CA
Built 1975 Load: 35.6 t ADT: 50
SUMMERHOME PARK RD
FairOver: HILLSIDE
0.85 MI SW RIVER RD, Sonoma, CA
Built 1930 Load: 35.6 t ADT: 101
STATE ROUTE 108
FairOver: BNSF RY & AMTRAK
10-STA-108-R32.34, Stanislaus, CA
Built 1972 Load: 35.6 t ADT: 14,400
SIMPSON ROAD
FairOver: THOMES CREEK
0.3 MI S PASKENTA RD, Tehama, CA
Built 1948 Load: 35.6 t ADT: 200
ARAMAYO WAY
FairOver: SACRAMENTO RIV OVERFLOW
0.6 MI W OF SH 99, Tehama, CA
Built 1958 Load: 35.6 t ADT: 3,300
RATTLESNAKE ROAD
FairOver: SALT CREEK
150' WEST OF S.R. 3, Trinity, CA
Built 1966 Load: 35.6 t ADT: 440
SPRINGVILLE AVE
FairOver: PORTER SLOUGH
AT SUCCESS RD, Tulare, CA
Built 1937 Load: 35.6 t ADT: 3,650
ROAD 248
FairOver: DEER CREEK
0.35 MI N OF A108, Tulare, CA
Built 1970 Load: 35.6 t ADT: 1,150
U.S. HIGHWAY 101
FairOver: ARROYO CONEJO
07-VEN-101-11.44-CMRL, Ventura, CA
Built 1987 Load: 35.6 t ADT: 132,000
STATE ROUTE 33
FairOver: VENTURA AVE (NORTH)
07-VEN-033-R5.31, Ventura, CA
Built 1970 Load: 35.6 t ADT: 12,000
HARBOR BLVD
FairOver: ARUNDELL BARRANCA
1.0 MI S SEAWARD AVE, Ventura, CA
Built 1959 Load: 35.6 t ADT: 9,342
CHANNEL ISLANDS BL
FairOver: MANDALAY BAY
0.4 MI E OF HARBOR BLVD, Ventura, CA
Built 1957 Load: 35.6 t ADT: 24,750
INTERSTATE 505 SB
FairOver: COUNTY ROAD 12
03-YOL-505-20.11, Yolo, CA
Built 1977 Load: 35.6 t ADT: 7,000
INTERSTATE 505 NB
FairOver: COUNTY ROAD 12
03-YOL-505-20.11, Yolo, CA
Built 1977 Load: 35.6 t ADT: 7,000
RICHARDS AVE
FairOver: SUTTER-BUTTE CANAL
0.5 MI E LARKIN RD, Butte, CA
Built 1966 Load: 36.0 t ADT: 238
SACRAMENTO AVE
FairOver: SANDY GULCH
JUST W OF GRAPE WAY, Butte, CA
Built 1967 Load: 36.0 t ADT: 1,048
INTERSTATE 5 SB
FairOver: SALT CREEK
03-COL-005-R7.99, Colusa, CA
Built 1967 Load: 36.0 t ADT: 15,000
WILBUR AVE
FairOver: BNSF RY & AMTRAK, UP RR
0.25 MI E/O MINAKER DR, Contra Costa, CA
Built 1958 Load: 36.0 t ADT: 7,816
INTERSTATE 5 SB
FairOver: PANOCHE CREEK
06-FRE-005-49.99, Fresno, CA
Built 1966 Load: 36.0 t ADT: 17,000
INTERSTATE 5 NB
FairOver: PANOCHE CREEK
06-FRE-005-49.99, Fresno, CA
Built 1966 Load: 36.0 t ADT: 17,000
TRIMMER SPRINGS RD
FairOver: FRESNO CANAL
0.8 MI EAST OF BELMONT AV, Fresno, CA
Built 1964 Load: 36.0 t ADT: 1,800
TRIMMER SPRINGS RD
FairOver: GOULD CANAL
2 MI EAST OF BELMONT AVE, Fresno, CA
Built 1964 Load: 36.0 t ADT: 1,800
E DINUBA AVE
FairOver: TRAVERS CREEK
0.8 MI E OF BUTTONWILLOW, Fresno, CA
Built 1936 Load: 36.0 t ADT: 5,700
WINDING ROAD
FairOver: DINKEY CREEK
11S40-29.8, Fresno, CA
Built 1956 Load: 36.0 t ADT: 200
U.S. HIGHWAY 101
FairOver: BOYD DRAW
01-HUM-101-89.44, Humboldt, CA
Built 1959 Load: 36.0 t ADT: 12,900
SMITH POINT
FairOver: SOUTH FORK EEL RIVER
OLD SMITH POINT, Humboldt, CA
Built 1934 Load: 36.0 t ADT: 69
ROSEDALE HWY
FairOver: CALLOWAY CANAL
0.2 MI EAST COFFEE RD, Kern, CA
Built 1970 Load: 36.0 t ADT: 41,250
25TH AVE
FairOver: COASTAL AQUEDUCT
7.2 MI S OF I-5, Kings, CA
Built 1965 Load: 36.0 t ADT: 650
INTERSTATE 605
FairOver: SAN JOSE DIVERSION CHAN
07-LA-605-R17.69-IDY, Los Angeles, CA
Built 1964 Load: 36.0 t ADT: 230,000
STATE ROUTE 14
FairOver: AVENUE "O-8"
07-LA-014-R62.12-PMDL, Los Angeles, CA
Built 1972 Load: 36.0 t ADT: 44,500
FRANKLIN AVE
FairOver: GARDEN
0.1 W/O ST GEORGE ST, Los Angeles, CA
Built 1925 Load: 36.0 t ADT: 23,800
WILLOW ST
FairOver: EDISON ACCESS RD UC
0.3MI W/O I-605 FWY, Los Angeles, CA
Built 1962 Load: 36.0 t ADT: 28,620
ALONDRA BLVD
FairOver: COMPTON CRK
0.5MI E/O WILMINGTON AVE, Los Angeles, CA
Built 1938 Load: 36.0 t ADT: 29,362
TURNBULL CYN RD
FairOver: SAN JOSE CR
0.5MI S/O VALLEY BLVD, Los Angeles, CA
Built 1967 Load: 36.0 t ADT: 16,624
COMMERCE POINTE DR
FairOver: SAN JOSE CRK
0.1MI W/O BREA CYN RD, Los Angeles, CA
Built 1990 Load: 36.0 t ADT: 1,098
STATE ROUTE 41 SB
FairOver: SAN JOAQUIN RIVER OVRFLO
06-MAD-041-0.13, Madera, CA
Built 1999 Load: 36.0 t ADT: 28,000
Showing 15,301-15,350 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.