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
GRATON RD
FairOver: PURRINGTON CREEK
0.1 MI N/E GREENHILL RD, Sonoma, CA
Built 1970 Load: 37.9 t ADT: 3,100
STWRT PT-SKGG SPRG
FairOver: HILLSIDE
9.7 MI E/O SR 1, Sonoma, CA
Built 1970 Load: 37.9 t ADT: 300
BELLEVUE AVE
FairOver: COLGAN CR FLD CNTRL CHNL
0.3 MI E STONY POINT RD, Sonoma, CA
Built 1964 Load: 37.9 t ADT: 400
MONTE VISTA TER
FairOver: HILLSIDE
IN MONTE RIO, Sonoma, CA
Built 1968 Load: 37.9 t ADT: 200
RED BANK ROAD
FairOver: UNNAMED DRAINAGE
2 MI W OF GALLATIN RD, Tehama, CA
Built 1970 Load: 37.9 t ADT: 440
VIOLA AVE
FairOver: VIOLA SLOUGH
0.6 MI W OF I-5, Tehama, CA
Built 1935 Load: 37.9 t ADT: 80
STATE ROUTE 299
FairOver: EAST WEAVER CREEK
02-TRI-299-52.13, Trinity, CA
Built 1962 Load: 37.9 t ADT: 7,125
M276
FairOver: NORTH FORK TULE RIVER
0.3 MI N OF SM296, Tulare, CA
Built 1967 Load: 37.9 t ADT: 100
INTERSTATE 405
FairOver: RINALDI STREET
07-LA-405-47.75-LA, Los Angeles, CA
Built 1963 Load: 38.1 t ADT: 142,000
LARAMIE ST
FairOver: MARKLEEVILLE CREEK
E/O MONTGOMERY ST, Alpine, CA
Built 1958 Load: 38.2 t ADT: 200
MERIDIAN RD
FairOver: MUD CREEK
1.28 MI W OF SACTO AVE, Butte, CA
Built 1962 Load: 38.2 t ADT: 433
STATE ROUTE 24
FairOver: EBMUD AQUEDUCT, BROWN AV
04-CC-024-R6.78-LFYT, Contra Costa, CA
Built 1970 Load: 38.2 t ADT: 79,500
WATER ISLAND PK DR
FairOver: HERNDON CANAL
0.2 MI N OF SHAW AVE, Fresno, CA
Built 1960 Load: 38.2 t ADT: 5,881
WHITESBRIDGE ROAD
FairOver: DRY CREEK CANAL
0.15 MI E/O HUGHES-WEST, Fresno, CA
Built 1919 Load: 38.2 t ADT: 10,400
EVAN HEWES HIGHWAY
FairOver: EAST HIGHLINE CANAL
1 MI E/O SR-115 EXIT I8, Imperial, CA
Built 1949 Load: 38.2 t ADT: 560
SHAFTER AVE
FairOver: CALLOWAY CANAL
0.7 MI S KIMBERLINA RD, Kern, CA
Built 1970 Load: 38.2 t ADT: 1,930
COFFEE ROAD SB
FairOver: KERN RIVER
0.2 MI N OF TRUXTUN AVE, Kern, CA
Built 1992 Load: 38.2 t ADT: 40,900
STATE ROUTE 58
FairOver: CALLOWAY CANAL
0.5 MI W OF MOHAWK ST., Kern, CA
Built 1970 Load: 38.2 t ADT: 41,250
STATE ROUTE 29
FairOver: COYOTE CREEK
01-LAK-029-11.89, Lake, CA
Built 1948 Load: 38.2 t ADT: 9,000
JOHNSTONVILLE RD
FairOver: SUSAN RIVER
0.3 MI N OF US 395, Lassen, CA
Built 1921 Load: 38.2 t ADT: 600
STATE ROUTE 60
FairOver: GERHART AVE
07-LA-060-R4.80, Los Angeles, CA
Built 1967 Load: 38.2 t ADT: 250,000
I 5 NB
FairOver: SMOKEY BEAR ROAD
07-LA-005-R77.96, Los Angeles, CA
Built 1967 Load: 38.2 t ADT: 35,890
STATE ROUTE 14
FairOver: AVENUE "O-8"
07-LA-014-R62.12-PMDL, Los Angeles, CA
Built 1972 Load: 38.2 t ADT: 44,500
STATE ROUTE 14
FairOver: 20TH STREET WEST
07-LA-014-R67.48-LAN, Los Angeles, CA
Built 1972 Load: 38.2 t ADT: 22,500
CRENSHAW BLVD
FairOver: BRANCH OF DOMINGUEZ CHAN
0.3MI S/O EL SEGUNDO BLV, Los Angeles, CA
Built 1959 Load: 38.2 t ADT: 39,804
77TH ST E
FairOver: CALIFORNIA AQUEDUCT
0.3MI S/O SR-138 HWY, Los Angeles, CA
Built 1968 Load: 38.2 t ADT: 408
SANTA FE DRIVE
FairOver: MERCED RIVER
0.5 MI S EL CAPITAN WAY, Merced, CA
Built 1970 Load: 38.2 t ADT: 7,297
STATE ROUTE 156 EB
FairOver: UP RR & AMTRAK
05-MON-156-R1.59, Monterey, CA
Built 1966 Load: 38.2 t ADT: 16,116
US HIGHWAY 101 SB
FairOver: SALINAS RIVER
05-MON-101-R30.80, Monterey, CA
Built 1971 Load: 38.2 t ADT: 7,450
US HIGHWAY 101 NB
FairOver: SALINAS RIVER
05-MON-101-R30.80, Monterey, CA
Built 1971 Load: 38.2 t ADT: 7,450
STATE ROUTE 111
FairOver: MAPLE DITCH
08-RIV-111-10.74, Riverside, CA
Built 1951 Load: 38.2 t ADT: 2,700
STATE ROUTE 78
FairOver: PALO VERDE LAGOON
08-RIV-078-8.06-BLY, Riverside, CA
Built 1968 Load: 38.2 t ADT: 2,150
INTERSTATE 10 WB
FairOver: RANNELS DRAIN
08-RIV-010-R148.53-BLY, Riverside, CA
Built 1969 Load: 38.2 t ADT: 11,250
MARKET STREET
FairOver: SANTA ANA RIVER
0.4 MI NW OF SR 60, Riverside, CA
Built 1953 Load: 38.2 t ADT: 17,821
BASE LINE RD WB
FairOver: UP RR
2.55 MI W I-215, San Bernardino, CA
Built 1967 Load: 38.2 t ADT: 9,767
ROUTE 125 NB
FairOver: SAN MIGUEL CREEK
11-SD-125-6.80, San Diego, CA
Built 2007 Load: 38.2 t ADT: 34,000
JEFFERSON ST
FairOver: BUENA VISTA CREEK
0.1 MI S/O SR 78, San Diego, CA
Built 1973 Load: 38.2 t ADT: 19,833
PECHO VALLEY RD
FairOver: ISLAY CREEK
4.9 MI SW BAYWOOD PARK, San Luis Obispo, CA
Built 1974 Load: 38.2 t ADT: 1,790
SAN MATEO AVE
FairOver: COLMA CREEK
.1 MI W/O AIRPORT BLVD, San Mateo, CA
Built 1960 Load: 38.2 t ADT: 9,343
STATE ROUTE 135
FairOver: SAN ANTONIO CREEK
05-SB-135-R7.22, Santa Barbara, CA
Built 1964 Load: 38.2 t ADT: 3,050
VIA REAL
FairOver: TORO CREEK
0.1 MI W OF TORO CYN RD, Santa Barbara, CA
Built 1968 Load: 38.2 t ADT: 4,458
LEIGH AVE
FairOver: LOS GATOS CREEK
N OF HAMILTON AVE, Santa Clara, CA
Built 1965 Load: 38.2 t ADT: 15,000
CLEAR CR RD
FairOver: CLEAR CREEK
6.8 MI E OF S.R. 273, Shasta, CA
Built 1956 Load: 38.2 t ADT: 1,164
COTTONWOOD CR RD
FairOver: DITCH CREEK
0.25 MI N/O DITCH CRK RD, Siskiyou, CA
Built 1968 Load: 38.2 t ADT: 95
PIERSON ST
FairOver: SANTA ROSA CREEK
0.2 MI N/O WEST 3RD ST, Sonoma, CA
Built 1960 Load: 38.2 t ADT: 500
STWRT PT-SKGG SPRG
FairOver: HILLSIDE
2.77 MI E OF ST HWY 1, Sonoma, CA
Built 2015 Load: 38.2 t ADT: 200
STWRT PT-SKGG SPRG
FairOver: HILLSIDE
2.8 MI E OF ST HWY 1, Sonoma, CA
Built 2015 Load: 38.2 t ADT: 200
MANTON RD
FairOver: PAYNES CREEK
0.1 MI N OF SH 36, Tehama, CA
Built 1949 Load: 38.2 t ADT: 600
D 109
FairOver: ELK BAYOU
0.5 MI S OF AVE 200, Tulare, CA
Built 1962 Load: 38.2 t ADT: 225
AVE 304
FairOver: CROCKER CUT
0.2 MI E OF RD 180, Tulare, CA
Built 1939 Load: 38.2 t ADT: 900
Showing 15,651-15,700 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.