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
INTERSTATE 215 SB
FairOver: SALT CREEK
08-RIV-215-R18.92, Riverside, CA
Built 1979 Load: 59.0 t ADT: 99,000
TYRONE ROAD
FairOver: TYRONE GULCH CREEK
1.8 MI S/O MONTE RIO, Sonoma, CA
Built 2004 Load: 59.0 t ADT: 150
MANTON RD
FairOver: SOUTH FORK BATTLE CREEK
8.1 MI N/E OF SH 36, Tehama, CA
Built 1958 Load: 59.0 t ADT: 534
BURREL ROAD
FairOver: UPPER N FK MATTOLE RIV
0.5 MI W MATTOLE RD, Humboldt, CA
Built 1961 Load: 59.3 t ADT: 142
BRIDGE ARBOR RD
FairOver: ROBINSON CREEK
0.4 MI E OF SR 29, Lake, CA
Built 1925 Load: 59.3 t ADT: 65
BENZ RD
FairOver: BOUQUET CYN CHAN
0.1MI W/O BOUQUET CYN RD, Los Angeles, CA
Built 1978 Load: 59.3 t ADT: 1,108
EASTSIDE LANE
FairOver: WEST WALKER RIVER
0.1 MI N RTE 395 JCT, Mono, CA
Built 1952 Load: 59.3 t ADT: 826
INTERSTATE 805 SB
FairOver: SWEETWATER RIVER
11-SD-805-8.66, San Diego, CA
Built 1975 Load: 59.3 t ADT: 204,000
EL DORADO PKWY
FairOver: LOS COCHES CREEK
300' S OF HWY 8, San Diego, CA
Built 1983 Load: 59.3 t ADT: 156
INDIAN CREEK ROAD
FairOver: INDIAN CREEK
3.3 MI W READING CRK RD, Trinity, CA
Built 1976 Load: 59.3 t ADT: 35
SUTTON ROAD
FairOver: FUNKS CREEK
0.25 MI N OF LENAHAN RD, Colusa, CA
Built 1964 Load: 59.6 t ADT: 65
BOTTLE ROCK ROAD
FairOver: COLE CREEK
0.15 MI S OF S.R. 29, Lake, CA
Built 1971 Load: 59.6 t ADT: 1,205
TEMPLE AVE
FairOver: PUENTE CRK
0.8MI N/O VALLEY BLVD, Los Angeles, CA
Built 1955 Load: 59.6 t ADT: 30,150
STATE ROUTE 33
FairOver: GARZAS CREEK BYPASS
10-MER-033-24.54, Merced, CA
Built 1920 Load: 59.6 t ADT: 7,475
COUNTY ROAD 112
FairOver: J CANAL
SOUTH OF STATE LINE RD, Modoc, CA
Built 1940 Load: 59.6 t ADT: 380
INTERSTATE 8 EB
FairOver: LA POSTA CR, LA POSTA RD
11-SD-008-R56.78R, San Diego, CA
Built 1974 Load: 59.6 t ADT: 8,350
EDGEWOOD ROAD
FairOver: SHASTA RIVER
0.1 MI W OL EDGEWOOD WEED, Siskiyou, CA
Built 1973 Load: 59.9 t ADT: 395
MIDWAY ROAD
FairOver: SWEENY CREEK
0.45 MI E OF I-80, Solano, CA
Built 1970 Load: 59.9 t ADT: 5,000
BARTON RD
FairOver: SAN TIMOTEO CREEK
0.3 MI W CALIFORNIA ST, San Bernardino, CA
Built 1972 Load: 60.3 t ADT: 24,760
STATE ROUTE 76 EB
FairOver: MISSION AVE
11-SD-076-R4.55-OCN, San Diego, CA
Built 1999 Load: 60.3 t ADT: 23,000
Ave. 456
FairOver: Friant-Kern Canal
SE Orange Cove, Tulare, CA
Built 1948 Load: 60.3 t ADT: 50
NAVELENCIA AVE
FairOver: ALTA EAST BRANCH CANAL
0.1 MI N/O AMERICAN AVE, Fresno, CA
Built 1975 Load: 60.6 t ADT: 700
IRR SHERWOOD RD
FairOver: CURLEY COW CREEK
9 MI N/W OF US HWY 101, Mendocino, CA
Built 1988 Load: 60.6 t ADT: 377
"I" STREET
FairOver: SACRAMENTO,UP,BNSF,AMTRA
AT SACRAMENTO CO. LINE, Yolo, CA
Built 1911 Load: 60.6 t ADT: 4,938
LOS GATOS ROAD
FairOver: LOS GATOS CREEK
11.95 MI W OF DERRICK BL, Fresno, CA
Built 1974 Load: 60.9 t ADT: 200
ROAD 43
FairOver: DRAIN A
0.2 MI E ROAD TT, Glenn, CA
Built 1947 Load: 60.9 t ADT: 6
CADY RD
FairOver: WESTSIDE MAIN CANAL
0.37 MI S/O SR 86 & KALIN, Imperial, CA
Built 1975 Load: 60.9 t ADT: 1,150
STATE ROUTE 14 SB
FairOver: UP RR & BNSF RY
09-KER-014-R15.33, Kern, CA
Built 1990 Load: 60.9 t ADT: 8,975
CLARK DRIVE
FairOver: COLE CREEK
0.7 MI S/O SODA BAY RD, Lake, CA
Built 1940 Load: 60.9 t ADT: 114
INTERSTATE 5
FairOver: PAXTON STREET
07-LA-005-39.05-LA, Los Angeles, CA
Built 1963 Load: 60.9 t ADT: 275,000
STATE ROUTE 1
FairOver: TEXACO OH
07-LA-001-8.69-LA, Los Angeles, CA
Built 1967 Load: 60.9 t ADT: 33,000
STATE ROUTE 140
FairOver: MILES CREEK
10-MPA-140-4.06, Mariposa, CA
Built 1916 Load: 60.9 t ADT: 4,650
INTERSTATE 40
FairOver: ARBOL DITCH
08-SBD-040-R129.78, San Bernardino, CA
Built 1971 Load: 60.9 t ADT: 13,600
INTERSTATE 40
FairOver: ARBOL DITCH
08-SBD-040-R129.82, San Bernardino, CA
Built 1971 Load: 60.9 t ADT: 13,600
OLD OREGON TRAIL
FairOver: MOODY CREEK
0.2 MI E OASIS & AKRICH, Shasta, CA
Built 1976 Load: 60.9 t ADT: 2,300
INTERSTATE 505
FairOver: COTTONWOOD SLOUGH
03-YOL-505-9.66, Yolo, CA
Built 1980 Load: 60.9 t ADT: 6,000
E LAGUNA AVE
FairOver: GRANT CANAL (E DITCH)
0.20 MI W/O MAPLE AVE, Fresno, CA
Built 1925 Load: 61.2 t ADT: 50
MCCABE RD
FairOver: CENTRAL MAIN CANAL
25 FT E/O AUSTIN RD, Imperial, CA
Built 1975 Load: 61.2 t ADT: 1,100
INTERSTATE 210
FairOver: NEW YORK AVE
07-LA-210-R16.47-GNDL, Los Angeles, CA
Built 1972 Load: 61.2 t ADT: 166,000
LARK AVE
FairOver: LOS GATOS CREEK
WEST OF SH 17, Santa Clara, CA
Built 1965 Load: 61.2 t ADT: 40,000
WESTSIDE RD
FairOver: OREGON GULCH
0.2 MI N KENYON DR, Shasta, CA
Built 1957 Load: 61.2 t ADT: 1,100
BRANDY CITY ROAD
FairOver: CHEROKEE CREEK
1.1 MI N INTX CR S490, Sierra, CA
Built 1940 Load: 61.2 t ADT: 20
FRESHWATER ROAD
FairOver: SALT CREEK
0.1 MI E OF I-5, Colusa, CA
Built 1968 Load: 61.6 t ADT: 829
BLUE RAVINE ROAD
FairOver: WILLOW CREEK
0.6 MI S OF E BIDWELL RD, Sacramento, CA
Built 1986 Load: 61.6 t ADT: 18,500
PESCADERO RD
FairOver: PESCADERO CREEK
2 MI E BUTANO CUTOFF, San Mateo, CA
Built 1937 Load: 61.6 t ADT: 720
LASSEN PARK ROAD
FairOver: WEST FORK SULPHUR CREEK
2 miles north of South En, Shasta, CA
Built 1964 Load: 61.7 t ADT: 300
SIXTH ST
FairOver: UPRR
50FT S/O MISSION RD, Los Angeles, CA
Built 1979 Load: 61.9 t ADT: 8,778
BANCROFT AVE
FairOver: SAN LEANDRO CREEK
0.1 MI N/O CALLAHAN AVE, Alameda, CA
Built 1948 Load: 62.2 t ADT: 10,600
E2-E210 CONNECTOR
FairOver: VERDUGO BLVD
07-LA-002-R23.00-GNDL, Los Angeles, CA
Built 1972 Load: 62.2 t ADT: 8,900
OLD CAZADERO RD
FairOver: HUBERT CREEK
0.9 MI NW SH 116, Sonoma, CA
Built 1955 Load: 62.2 t ADT: 950
Showing 16,801-16,850 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.