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
ROUTE 23
GoodOver: AVENIDA DE LOS ARBOLES
07-VEN-023-R6.03-THOK, Ventura, CA
Built 1970 Load: 42.8 t ADT: 94,000
MANDALAY VILLAGE
GoodOver: OXNARD WEST DRAIN
1.0 MI W VENTURA RD, Ventura, CA
Built 1988 Load: 42.8 t ADT: 2,470
ESPLANADE
GoodOver: MUD CREEK
NORTH OF NORD HWY, Butte, CA
Built 1963 Load: 43.1 t ADT: 1,434
U.S. HIGHWAY 101
GoodOver: MCDONALD CREEK
01-HUM-101-114.54, Humboldt, CA
Built 1972 Load: 43.1 t ADT: 4,300
PAVED ROAD
GoodOver: ROCK CREEK
ROCK CREEK ROAD, Inyo, CA
Built 1984 Load: 43.1 t ADT: 50
U.S. HIGHWAY 101
GoodOver: WILBUR AVE
07-LA-101-21.76-LA, Los Angeles, CA
Built 1959 Load: 43.1 t ADT: 229,000
ROUTE 5
GoodOver: PENROSE STREET
07-LA-005-34.28-LA, Los Angeles, CA
Built 1961 Load: 43.1 t ADT: 4,320
INTERSTATE 605
GoodOver: WALNUT CREEK
07-LA-605-R19.85-BWP, Los Angeles, CA
Built 1957 Load: 43.1 t ADT: 237,090
SIERRE MADRE AVE
GoodOver: BIG DALTON WASH
0.5MI E/O LORAINE AVE, Los Angeles, CA
Built 1968 Load: 43.1 t ADT: 5,605
THURMAN AVE
GoodOver: BALLONA CREEK
0.2 MI N WASHINGTON BLVD, Los Angeles, CA
Built 1974 Load: 43.1 t ADT: 2,462
HARBOR PLZ DR E
GoodOver: UPRR
200FT W/O PICO AVE, Los Angeles, CA
Built 1994 Load: 43.1 t ADT: 8,971
IRR EAST LANE
GoodOver: SHORT CREEK
2.17 MI E SH 162, Mendocino, CA
Built 1973 Load: 43.1 t ADT: 210
Volta Road
GoodOver: San Luis Canal
1.6 mi S of SR 152, Merced, CA
Built 1968 Load: 43.1 t ADT: 50
EAST YALE LOOP
GoodOver: SAN DIEGO CREEK CHANNEL
0.2 MI SW BARRANCA PKWY, Orange, CA
Built 1981 Load: 43.1 t ADT: 10,200
INTERSTATE 215
GoodOver: SPRUCE STREET
08-RIV-215-R42.84R-RIV, Riverside, CA
Built 1961 Load: 43.1 t ADT: 202,000
LOVEKIN BOULEVARD
GoodOver: "C" CANAL
2.2 MI. N/O RTE. I-10 FWY, Riverside, CA
Built 1972 Load: 43.1 t ADT: 2,000
GUAVA STREET
GoodOver: MURRIETA CREEK
0.1 MI NE/O WASHINGTON AV, Riverside, CA
Built 2018 Load: 43.1 t ADT: 2,793
INTERSTATE 15 SB
GoodOver: FIELD WASH
08-SBD-015-R104.77, San Bernardino, CA
Built 1964 Load: 43.1 t ADT: 22,000
INTERSTATE 15 NB
GoodOver: FIELD WASH
08-SBD-015-R104.77, San Bernardino, CA
Built 1964 Load: 43.1 t ADT: 22,000
W10-N215 CONNECTOR
GoodOver: SANTA ANA RV, FAIRWAY DR
08-SBD-010-R24.27-COL, San Bernardino, CA
Built 1958 Load: 43.1 t ADT: 23,000
INTERSTATE 15
GoodOver: CHOLLAS CREEK
11-SD-015-2.08-SD, San Diego, CA
Built 1954 Load: 43.1 t ADT: 114,000
INTERSTATE 8 WB
GoodOver: MICA GEM UC
11-SD-008-R76.24, San Diego, CA
Built 1967 Load: 43.1 t ADT: 7,350
INTERSTATE 8 EB
GoodOver: MICA GEM UC
11-SD-008-R76.25, San Diego, CA
Built 1967 Load: 43.1 t ADT: 7,350
INTERSTATE 8 WB
GoodOver: WILLIAMS RD
11-SD-008-R62.27, San Diego, CA
Built 1967 Load: 43.1 t ADT: 8,100
INTERSTATE 8 EB
GoodOver: WILLIAMS RD
11-SD-008-R62.27, San Diego, CA
Built 1967 Load: 43.1 t ADT: 8,100
POCK LANE
GoodOver: DUCK CREEK
0.1 MI S OF LOOMIS AVE, San Joaquin, CA
Built 1963 Load: 43.1 t ADT: 1,688
SANTA TERESA BLVD
GoodOver: FISHER CREEK
BTWN PALM AVE/KALANA AVE, Santa Clara, CA
Built 1926 Load: 43.1 t ADT: 4,470
DUZEL CREEK RD
GoodOver: MOFFETT CREEK
0.1 MI SW SCARFACE RD, Siskiyou, CA
Built 1971 Load: 43.1 t ADT: 15
INTERSTATE 5 NB
GoodOver: JEWETT CREEK
02-TEH-005-R8.75, Tehama, CA
Built 1966 Load: 43.1 t ADT: 13,500
STATE ROUTE 299
GoodOver: PONY BAR CREEK
02-TRI-299-5.94, Trinity, CA
Built 1966 Load: 43.1 t ADT: 3,080
NO DATA ENTERED
GoodOver: GOODS CREEK
WILD WOOD, Trinity, CA
Built 2006 Load: 43.1 t ADT: 20
ROUTE 23
GoodOver: AVENIDA DE LOS ARBOLES
07-VEN-023-R6.03-THOK, Ventura, CA
Built 1970 Load: 43.1 t ADT: 94,000
COUNTY ROAD 90A
GoodOver: LONG CREEK
0.25 MI N OF CR #19, Yolo, CA
Built 1977 Load: 43.1 t ADT: 250
WINDING ROAD
GoodOver: SOUTH FORK RUBICON
NO DATA ENTERED, El Dorado, CA
Built 1970 Load: 43.4 t ADT: 50
STATE ROUTE 91
GoodOver: UP RR, MTA BLUE LINE
07-LA-091-R9.97-COM, Los Angeles, CA
Built 1974 Load: 43.4 t ADT: 206,000
LARK ELLEN AVE
GoodOver: BIG DALTON WASH
0.4MI E/O ARROW HWY, Los Angeles, CA
Built 1960 Load: 43.4 t ADT: 16,640
CAMERON AVE
GoodOver: WALNUT CRK
300FT N/O SUNSET AVE, Los Angeles, CA
Built 1962 Load: 43.4 t ADT: 15,158
OCEAN VIEW BLVD
GoodOver: HALLS CYN CHAN
0.3MI S/O FOOTHILL BLVD, Los Angeles, CA
Built 1936 Load: 43.4 t ADT: 16,230
LAS FLORES CYN RD
GoodOver: LAS FLORES CRK
0.5MI N/O SR-1 HWY, Los Angeles, CA
Built 1996 Load: 43.4 t ADT: 1,572
Creek Road
GoodOver: San Luis Canal
0.7 MI S ALMOND DRIVE, Merced, CA
Built 1968 Load: 43.4 t ADT: 60
ARROYO SECO RD
GoodOver: PINEY CREEK
0.2 MI W CARMEL VALLEY R, Monterey, CA
Built 2000 Load: 43.4 t ADT: 390
INTERSTATE 10 WB
GoodOver: AJAX DITCH
08-RIV-010-R96.85, Riverside, CA
Built 1967 Load: 43.4 t ADT: 23,000
INTERSTATE 10 EB
GoodOver: AJAX DITCH
08-RIV-010-R96.83, Riverside, CA
Built 1967 Load: 43.4 t ADT: 23,000
INTERSTATE 15 NB
GoodOver: LEMON STREET
08-RIV-015-16.89, Riverside, CA
Built 1981 Load: 43.4 t ADT: 117,000
INTERSTATE 5 SB
GoodOver: MIDDLE SLOUGH
03-SAC-005-0.71, Sacramento, CA
Built 1979 Load: 43.4 t ADT: 26,500
INTERSTATE 5 NB
GoodOver: MIDDLE SLOUGH
03-SAC-005-0.71, Sacramento, CA
Built 1979 Load: 43.4 t ADT: 26,500
STATE ROUTE 156 WB
GoodOver: WASHINGTON STREET
05-SBT-156-2.72-SJB, San Benito, CA
Built 1961 Load: 43.4 t ADT: 13,000
WEST OCEAN AVE
GoodOver: SAN MIGUELITO CREEK
1.6 MI W ARGUELLO BLVD, Santa Barbara, CA
Built 1963 Load: 43.4 t ADT: 5,346
LOCUST ST
GoodOver: A.C.I.D. CANAL
0.2 MI N ATHENS WAY, Shasta, CA
Built 1962 Load: 43.4 t ADT: 9,300
RAIL CREEK ROAD
GoodOver: EAST FORK SCOTT RIVER
0.2 MI E CALLAHAN-GAZELLE, Siskiyou, CA
Built 1998 Load: 43.4 t ADT: 300
Showing 24,951-25,000 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 |