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
STATE ROUTE 111
GoodOver: VINE DITCH
08-RIV-111-15.34, Riverside, CA
Built 1951 Load: 32.4 t ADT: 2,700
INTERSTATE 10
GoodOver: STATION DRAIN
08-RIV-010-26.17, Riverside, CA
Built 1952 Load: 32.4 t ADT: 79,000
STATE ROUTE 91
GoodOver: COAL CANYON
08-RIV-091-R0.06, Riverside, CA
Built 1970 Load: 32.4 t ADT: 264,000
STATE ROUTE 111
GoodOver: COACHELLA CANAL WSTWY 1
08-RIV-111-11.55, Riverside, CA
Built 1945 Load: 32.4 t ADT: 2,700
STATE ROUTE 71
GoodOver: SANTA ANA RIVER
08-RIV-071-2.75, Riverside, CA
Built 1950 Load: 32.4 t ADT: 57,200
I-15 & CONCORDIA
GoodOver: SIGN CREEK
08-RIV-015-27.50, Riverside, CA
Built 1958 Load: 32.4 t ADT: 79,000
ROUTE 74
GoodOver: SAN DIEGO CANAL
08-RIV-074-36.50, Riverside, CA
Built 1960 Load: 32.4 t ADT: 33,500
STATE ROUTE 91
GoodOver: PIERCE DITCH
08-RIV-091-10.70-RIV, Riverside, CA
Built 1961 Load: 32.4 t ADT: 239,000
N15-E&W91 CONNECTR
GoodOver: BNSF RY,AMTRAK,METROLINK
08-RIV-015-41.25-COR, Riverside, CA
Built 1981 Load: 32.4 t ADT: 30,000
INTERSTATE 215
GoodOver: CENTRAL AVE
08-RIV-215-39.48-RIV, Riverside, CA
Built 1966 Load: 32.4 t ADT: 247,000
STATE ROUTE 60
GoodOver: WATER STREET DRAIN
08-RIV-060-10.30, Riverside, CA
Built 1962 Load: 32.4 t ADT: 189,000
INTERSTATE 15 SB
GoodOver: SANTA ANA RIVER
08-RIV-015-46.16-NRCO, Riverside, CA
Built 1988 Load: 32.4 t ADT: 75,000
INTERSTATE 15 NB
GoodOver: SANTA ANA RIVER
08-RIV-015-46.16-NRCO, Riverside, CA
Built 1988 Load: 32.4 t ADT: 75,000
INTERSTATE 15 NB
GoodOver: WEIRICK ROAD
08-RIV-015-35.64, Riverside, CA
Built 1966 Load: 32.4 t ADT: 73,000
INTERSTATE 15 SB
GoodOver: COLDWATER WASH
08-RIV-015-32.96, Riverside, CA
Built 1979 Load: 32.4 t ADT: 60,500
INTERSTATE 10 EB
GoodOver: RUBBLE DITCH
08-RIV-010-R120.74, Riverside, CA
Built 1966 Load: 32.4 t ADT: 10,700
INTERSTATE 10 EB
GoodOver: BEEHIVE DITCH
08-RIV-010-R124.23, Riverside, CA
Built 1966 Load: 32.4 t ADT: 10,700
STATE ROUTE 79
GoodOver: UP RR & AMTRAK
08-RIV-079-40.33-BAU, Riverside, CA
Built 1992 Load: 32.4 t ADT: 28,000
INTERSTATE 10
GoodOver: EAST CABAZON DITCH
08-RIV-010-R19.41, Riverside, CA
Built 1964 Load: 32.4 t ADT: 106,000
INTERSTATE 10 WB
GoodOver: AQUEDUCT WASH
08-RIV-010-R75.04, Riverside, CA
Built 1965 Load: 32.4 t ADT: 11,250
INTERSTATE 10 WB
GoodOver: SAD GULCH
08-RIV-010-R76.55, Riverside, CA
Built 1965 Load: 32.4 t ADT: 11,250
INTERSTATE 10 EB
GoodOver: SAD GULCH
08-RIV-010-R76.55, Riverside, CA
Built 1965 Load: 32.4 t ADT: 9,150
INTERSTATE 10 WB
GoodOver: HOPE ARROYO
08-RIV-010-R77.66, Riverside, CA
Built 1965 Load: 32.4 t ADT: 11,250
INTERSTATE 10 EB
GoodOver: HOPE ARROYO
08-RIV-010-R77.66, Riverside, CA
Built 1965 Load: 32.4 t ADT: 11,250
INTERSTATE 10 WB
GoodOver: RESURRECTION WASH
08-RIV-010-R78.94, Riverside, CA
Built 1965 Load: 32.4 t ADT: 11,250
INTERSTATE 10 EB
GoodOver: RESURRECTION WASH
08-RIV-010-R78.94, Riverside, CA
Built 1965 Load: 32.4 t ADT: 11,250
INTERSTATE 10 WB
GoodOver: LOVEKIN BLVD
08-RIV-010-R152.15-BLY, Riverside, CA
Built 1972 Load: 32.4 t ADT: 13,000
INTERSTATE 10 EB
GoodOver: LOVEKIN BLVD
08-RIV-010-R152.15-BLY, Riverside, CA
Built 1972 Load: 32.4 t ADT: 26,000
SR 60,FAIRGROUNDS,
GoodOver: SPRING BROOK
08-RIV-060-11.33-RIV, Riverside, CA
Built 1962 Load: 32.4 t ADT: 195,000
PAINTED HILLS RD
GoodOver: OLD MORONGO RD DRAIN
08-RIV-062-R1.85, Riverside, CA
Built 1966 Load: 32.4 t ADT: 1,785
ACCESS ROAD
GoodOver: PIERSON BLVD DRAIN
08-RIV-062-R3.32, Riverside, CA
Built 1966 Load: 32.4 t ADT: 1,581
STATE ROUTE 91
GoodOver: E91-N71 CONNCTR (FUTURE)
08-RIV-091-R1.77-COR, Riverside, CA
Built 1970 Load: 32.4 t ADT: 267,000
STATE ROUTE 91
GoodOver: SERFAS DRIVE
08-RIV-091-R3.71, Riverside, CA
Built 1970 Load: 32.4 t ADT: 269,000
INTERSTATE 10 EB
GoodOver: DESERT CENTER DITCH
08-RIV-010-R104.43, Riverside, CA
Built 1967 Load: 32.4 t ADT: 11,500
INTERSTATE 15 SB
GoodOver: TEMESCAL CANYON ROAD
08-RIV-015-27.78, Riverside, CA
Built 1980 Load: 32.4 t ADT: 61,000
INTERSTATE 15 NB
GoodOver: TEMESCAL CANYON ROAD
08-RIV-015-27.80, Riverside, CA
Built 1980 Load: 32.4 t ADT: 61,000
STATE ROUTE 91
GoodOver: WARDLOW WASH
08-RIV-091-R1.73, Riverside, CA
Built 1970 Load: 32.4 t ADT: 264,000
INTERSTATE 15 SB
GoodOver: RIVERSIDE DRIVE
08-RIV-015-51.26, Riverside, CA
Built 1987 Load: 32.4 t ADT: 72,500
INTERSTATE 15 NB
GoodOver: RIVERSIDE DRIVE
08-RIV-015-51.26, Riverside, CA
Built 1987 Load: 32.4 t ADT: 72,500
INTERSTATE 15 NB
GoodOver: RR CANYON RD
08-RIV-015-19.16-ESN, Riverside, CA
Built 1982 Load: 32.4 t ADT: 61,000
INTERSTATE 15 SB
GoodOver: LEMON STREET
08-RIV-015-16.89, Riverside, CA
Built 1981 Load: 32.4 t ADT: 112,000
INTERSTATE 15 NB
GoodOver: OLIVE STREET
08-RIV-015-17.52, Riverside, CA
Built 1981 Load: 32.4 t ADT: 56,500
INTERSTATE 15 SB
GoodOver: SAN JACINTO RIVER
08-RIV-015-19.37, Riverside, CA
Built 1982 Load: 32.4 t ADT: 61,000
INTERSTATE 15 NB
GoodOver: SAN JACINTO RIVER
08-RIV-015-19.37, Riverside, CA
Built 1982 Load: 32.4 t ADT: 61,000
INTERSTATE 15
GoodOver: WADDELL WASH
08-RIV-015-6.05-TMCA, Riverside, CA
Built 1976 Load: 32.4 t ADT: 163,000
INTERSTATE 15 NB
GoodOver: WASSON CANYON WASH
08-RIV-015-21.57, Riverside, CA
Built 1982 Load: 32.4 t ADT: 61,000
I-15 & MONTE VISTA
GoodOver: GROVE CREEK
08-RIV-015-15.75, Riverside, CA
Built 1981 Load: 32.4 t ADT: 118,000
INTERSTATE 215 SB
GoodOver: ROMOLAND FLOOD CNTL CHNL
08-RIV-215-22.33, Riverside, CA
Built 1992 Load: 32.4 t ADT: 87,000
INTERSTATE 215 NB
GoodOver: ROMOLAND FLOOD CNTL CHNL
08-RIV-215-22.33, Riverside, CA
Built 1992 Load: 32.4 t ADT: 87,000
SR 111 GENE AUTRY
GoodOver: PALM CANYON WASH
08-RIV-111-T48.32-PSP, Riverside, CA
Built 1982 Load: 32.4 t ADT: 12,500
Showing 21,851-21,900 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 |