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
LAKEWOOD BLVD
GoodOver: SPRING ST STORM DRN
AT SPRING ST, Los Angeles, CA
Built 1958 Load: 24.3 t ADT: 41,234
LAKEWOOD BLVD
GoodOver: DOUGLAS DRN
0.3MI N/O WARDLOW RD, Los Angeles, CA
Built 1966 Load: 24.3 t ADT: 38,690
LAKEWOOD BLVD
GoodOver: DOUGLAS PUC N
0.3MI N/O CONANT ST, Los Angeles, CA
Built 1941 Load: 24.3 t ADT: 35,616
LAKEWOOD BLVD
GoodOver: DEL AMO CHANNEL
07-LA-019-3.98-LBCH, Los Angeles, CA
Built 1952 Load: 24.3 t ADT: 27,000
DEODAR LN
GoodOver: SAWPIT WH
280FT E/O MOUNTAIN AVE, Los Angeles, CA
Built 1955 Load: 24.3 t ADT: 3
STONEHURST AVE.
GoodOver: LOPEZ CANYON CHANNEL
0.14 MI SE OF OSBORNE ST, Los Angeles, CA
Built 1962 Load: 24.3 t ADT: 150
STATE ROUTE 145
GoodOver: HILDRETH CREEK
06-MAD-145-19.68, Madera, CA
Built 1940 Load: 24.3 t ADT: 6,200
NICASIO VLY RD
GoodOver: NICASIO DRAIN #1
12.4 MI N OF HWY 101, Marin, CA
Built 1968 Load: 24.3 t ADT: 1,750
LUCKY DRIVE
GoodOver: BRANCH CORTE MADERA CRK
IN CORTE MADERA, Marin, CA
Built 1970 Load: 24.3 t ADT: 3,000
LINDARO ST
GoodOver: MAHON CREEK
SOUTH OF ANDERSEN DR, Marin, CA
Built 1962 Load: 24.3 t ADT: 5,735
REDWOOD HWY
GoodOver: GALLINAS CREEK
IN SAN RAFAEL, Marin, CA
Built 1969 Load: 24.3 t ADT: 16,000
FREITAS PRKY
GoodOver: GALLINAS CREEK
0.3 MI W US HWY 101, Marin, CA
Built 1950 Load: 24.3 t ADT: 8,738
LAS GALINAS AV
GoodOver: GALLINAS CREEK
AT FREITAS PKWY, Marin, CA
Built 1965 Load: 24.3 t ADT: 6,871
3RD ST
GoodOver: IRWIN CREEK
AT HETHERTON ST, Marin, CA
Built 1968 Load: 24.3 t ADT: 20,000
PACIFIC WAY
GoodOver: REDWOOD CREEK
0.09 MI S SR 1, Marin, CA
Built 1956 Load: 24.3 t ADT: 75
LA GOMA ST
GoodOver: AYO CORTE MADERA DEL PRE
300 FT N OF MILLER AVE, Marin, CA
Built 1950 Load: 24.3 t ADT: 3,000
W CASTLEWOOD DRIVE
GoodOver: SAN RAFAEL BAY INLET
SW OF KNIGHT DRIVE, Marin, CA
Built 1965 Load: 24.3 t ADT: 500
BEAR VALLEY ROAD
GoodOver: BURNS CREEK
3.8 MI NE HORNITOS RD, Mariposa, CA
Built 1951 Load: 24.3 t ADT: 190
U.S. HIGHWAY 101
GoodOver: ROSETTI CREEK
01-MEN-101-10.46, Mendocino, CA
Built 1942 Load: 24.3 t ADT: 13,800
STATE ROUTE 1
GoodOver: SOUTH FORK COTTONEVA CRK
01-MEN-001-87.82, Mendocino, CA
Built 1958 Load: 24.3 t ADT: 1,185
16TH STREET
GoodOver: BEAR CREEK OVERFLOW
0.1 MI NW YOSEMITE PARKWY, Merced, CA
Built 1938 Load: 24.3 t ADT: 2,000
16TH STREET
GoodOver: BEAR CREEK OVERFLOW
0.1 MI NW YOSEMITE PARKWY, Merced, CA
Built 1938 Load: 24.3 t ADT: 2,000
WHITWORTH ROAD
GoodOver: OUTSIDE CANAL
0.1 MI S COTTONWOOD RD, Merced, CA
Built 1965 Load: 24.3 t ADT: 400
EUCALYPTUS AVENUE
GoodOver: LIVINGSTON CANAL
0.3 MI E CRESSEY WAY, Merced, CA
Built 1960 Load: 24.3 t ADT: 461
BUCHANAN HOLLOW RD
GoodOver: DUTCHMAN CREEK #1
1.4 MI E WHITE ROCK RD, Merced, CA
Built 1960 Load: 24.3 t ADT: 155
STATE ROUTE 299
GoodOver: ROCK CREEK
02-MOD-299-37.16, Modoc, CA
Built 1937 Load: 24.3 t ADT: 2,800
U.S. HIGHWAY 395
GoodOver: SOUTH BRANCH ROBINSON CR
09-MNO-395-79.03, Mono, CA
Built 1934 Load: 24.3 t ADT: 6,950
U.S. HIGHWAY 395
GoodOver: NORTH BRANCH ROBINSON CR
09-MNO-395-79.17, Mono, CA
Built 1934 Load: 24.3 t ADT: 6,950
U.S. HIGHWAY 395
GoodOver: N BR BUCKEYE CREEK
09-MNO-395-79.48, Mono, CA
Built 1934 Load: 24.3 t ADT: 6,950
U.S. HIGHWAY 395
GoodOver: MIDDLE BRANCH BUCKEYE CR
09-MNO-395-79.38, Mono, CA
Built 1934 Load: 24.3 t ADT: 6,950
LOWER ROCK CRK RD
GoodOver: ROCK CREEK
1.9 MI S/O JCT US 395, Mono, CA
Built 1920 Load: 24.3 t ADT: 520
JOLON RD-S101 ONRP
GoodOver: KEMP CANYON CREEK
05-MON-101-R9.65, Monterey, CA
Built 1942 Load: 24.3 t ADT: 620
JOLON RD
GoodOver: KEMP CANYON CREEK
AT SH 101, Monterey, CA
Built 1942 Load: 24.3 t ADT: 1,900
NACIMIENTO LAKE DR
GoodOver: KEMP CANYON CREEK
NEAR JOLON RD, Monterey, CA
Built 1961 Load: 24.3 t ADT: 380
VAN BUREN AVE
GoodOver: SANTA RITA CREEK
0.1 MI S OF BOLIVAR, Monterey, CA
Built 1970 Load: 24.3 t ADT: 1,812
RUSSELL ROAD
GoodOver: SANTA RITA CREEK
0.1 M W SAN JUAN GRADE, Monterey, CA
Built 1961 Load: 24.3 t ADT: 1,500
STATE ROUTE 29
GoodOver: AMERICAN CANYON CREEK
04-NAP-029-0.56, Napa, CA
Built 1943 Load: 24.3 t ADT: 48,000
SILVERADO TRAIL
GoodOver: SODA SPRINGS CREEK
0.06 MI N SODA CANYON, Napa, CA
Built 1972 Load: 24.3 t ADT: 3,211
BUTTS CANYON RD
GoodOver: FP CREEK
3.5 MI S LAKE COUNTY LINE, Napa, CA
Built 1968 Load: 24.3 t ADT: 240
MULBERRY ST
GoodOver: HOPPER CREEK
0.2 MI E YOUNT ST, Napa, CA
Built 1970 Load: 24.3 t ADT: 785
CAPELL CROSS RD
GoodOver: CAPELL CREEK
0.1 MI W/O SR 128, Napa, CA
Built 1955 Load: 24.3 t ADT: 100
WINE COUNTRY AVE
GoodOver: NAPA DRAIN
AT SOLANO AVE, Napa, CA
Built 1960 Load: 24.3 t ADT: 3,853
RAIL ROAD AVENUE
GoodOver: WOLF CREEK
200'S IDAHO MARYLAND RD, Nevada, CA
Built 1970 Load: 24.3 t ADT: 882
FJORD RD
GoodOver: ALDER CREEK
BTWN ALDER CR RD NWOOD BL, Nevada, CA
Built 1970 Load: 24.3 t ADT: 2,145
INTERSTATE 5
GoodOver: AGUA CHINON WASH
12-ORA-005-22.04-IRVN, Orange, CA
Built 1927 Load: 24.3 t ADT: 201,000
PLACENTIA AVENUE
GoodOver: CARBON CREEK CHANNEL
0.1 MI. S/O ORANGETHORPE, Orange, CA
Built 1970 Load: 24.3 t ADT: 17,800
KATELLA AVENUE
GoodOver: COLLINS CHANNEL
AT BATAVIA ST, Orange, CA
Built 1959 Load: 24.3 t ADT: 30,900
KATELLA AVENUE
GoodOver: ANAHEIM-BARBER CITY CHAN
0.4 MI. E/O EUCLID STREET, Orange, CA
Built 1963 Load: 24.3 t ADT: 28,000
FIRST ST
GoodOver: E GARDEN GRV-WINTRBRG CH
0.2 MI E EUCLID ST, Orange, CA
Built 1960 Load: 24.3 t ADT: 25,000
CHAPMAN AVENUE
GoodOver: ANAHEIM-BARBER CITY CHA
0.4 MI E/O ROUTE 39, Orange, CA
Built 1959 Load: 24.3 t ADT: 20,800
Showing 18,451-18,500 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.