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
ZENOS RD
PoorOver: ALAMO RIVER
0.6 MI E/O SR-115, Imperial, CA
Built 1965 Load: 38.6 t ADT: 948
INTERSTATE 5 SB
PoorOver: DELTA-MENDOTA CANAL
10-MER-005-19.55, Merced, CA
Built 1966 Load: 38.6 t ADT: 15,500
STATE ROUTE 1
PoorOver: LIMEKILN CREEK
05-MON-001-20.95, Monterey, CA
Built 1957 Load: 38.6 t ADT: 2,000
W120-N5 CONNECTOR
PoorOver: UP RR
10-SJ-120-R0.76, San Joaquin, CA
Built 1980 Load: 38.6 t ADT: 19,750
STIMSON AVE
PoorOver: SAN JOSE CRK
E/O HACIENDA BLVD, Los Angeles, CA
Built 1967 Load: 38.9 t ADT: 18,869
US HIGHWAY 101 SB
PoorOver: UP RR & AMTRAK
05-SB-101-R0.26, Santa Barbara, CA
Built 1971 Load: 38.9 t ADT: 32,500
FIRST STREET
PoorOver: STANISLAUS RIVER
STANLS-SAN JOAQIN CO LINE, Stanislaus, CA
Built 1967 Load: 38.9 t ADT: 11,900
BECKWITH ROAD
PoorOver: UP RR
JUST W/O STATE RTE 99, Stanislaus, CA
Built 1976 Load: 38.9 t ADT: 9,068
STATE ROUTE 41
PoorOver: O STREET
06-FRE-041-R22.95-FRE, Fresno, CA
Built 1974 Load: 39.2 t ADT: 76,000
ALDERPOINT ROAD
PoorOver: BURR CREEK
4 MI S OF SR 36, Humboldt, CA
Built 1960 Load: 39.2 t ADT: 173
INTERSTATE 5 SB
PoorOver: KERN RIVER FLOOD CANAL
06-KER-005-71.64, Kern, CA
Built 1967 Load: 39.2 t ADT: 16,000
INTERSTATE 5 NB
PoorOver: KERN RIVER FLOOD CANAL
06-KER-005-71.66, Kern, CA
Built 1967 Load: 39.2 t ADT: 16,000
INTERSTATE 5 SB
PoorOver: CANAL ROAD
10-MER-005-19.40, Merced, CA
Built 1966 Load: 39.2 t ADT: 15,500
INTERSTATE 5
PoorOver: CANAL ROAD
10-MER-005-19.40, Merced, CA
Built 1966 Load: 39.2 t ADT: 17,300
MISSION GORGE RD
PoorOver: FORESTER CREEK
0.7MI W/O CUYAMACA ST, San Diego, CA
Built 1959 Load: 39.2 t ADT: 10,997
E EVANS REIMER RD
PoorOver: SUTTER-BUTTE CANAL
JUST E/O ALEXANDER AVE, Butte, CA
Built 1940 Load: 39.5 t ADT: 10
U.S. HIGHWAY 101
PoorOver: LONG VALLEY CREEK
01-MEN-101-59.90, Mendocino, CA
Built 1957 Load: 39.5 t ADT: 6,700
TAFT AVENUE
PoorOver: SANTA ANA RIVER CHANNEL
0.3 M E/O FWY 57, Orange, CA
Built 1967 Load: 39.5 t ADT: 34,300
LIVE OAK CYN RD
PoorOver: LIVE OAK CREEK
2.0 MI SW'LY OF I-10, San Bernardino, CA
Built 1970 Load: 39.5 t ADT: 2,200
INTERSTATE 5 NB
PoorOver: SAN LUIS REY RIVER
11-SD-005-R54.04-OCN, San Diego, CA
Built 1970 Load: 39.8 t ADT: 78,500
U.S. HIGHWAY 101
PoorOver: NOVATO CREEK
04-MRN-101-R20.51-NVTO, Marin, CA
Built 1974 Load: 39.9 t ADT: 61,500
CISCO RD
PoorOver: SOUTH YUBA RIVER
NEAR HAMPSHIRE ROCKS RD, Placer, CA
Built 1963 Load: 39.9 t ADT: 250
AUBURNDALE STREET
PoorOver: TEMESCAL CREEK
0.2 MI. N/O RINCON STREET, Riverside, CA
Built 1981 Load: 39.9 t ADT: 4,000
STATE ROUTE 25
PoorOver: PAJARO RIVER
05-SBT-025-60.04, San Benito, CA
Built 1951 Load: 39.9 t ADT: 18,000
INTERSTATE 15 SB
PoorOver: WHEATON WASH
08-SBD-015-173.84L, San Bernardino, CA
Built 1963 Load: 39.9 t ADT: 18,500
W BERNARDO DR
PoorOver: GREEN VALLEY CREEK
1.4MI N/O RANCHO BERNARDO, San Diego, CA
Built 1983 Load: 39.9 t ADT: 7,200
ALISAL ROAD
PoorOver: SANTA YNEZ RIVER
0.8 MI S SR 246, Santa Barbara, CA
Built 1971 Load: 39.9 t ADT: 1,712
W80-S680&N680-W80
PoorOver: GREEN VALLEY CREEK
04-SOL-080-12.90-FRFD, Solano, CA
Built 1961 Load: 39.9 t ADT: 33,700
HICKMAN ROAD
PoorOver: T.I.D. MAIN CANAL
1.2 MI N WHITMORE AVE, Stanislaus, CA
Built 1924 Load: 39.9 t ADT: 4,874
STATE ROUTE 24 WB
PoorOver: LAFAYETTE STA PUC(BARTD)
04-CC-024-R6.08-LFYT, Contra Costa, CA
Built 1970 Load: 40.2 t ADT: 79,500
WILDWOOD ROAD
PoorOver: POSO CREEK
2.4 MI S OF POND ROAD, Kern, CA
Built 1966 Load: 40.2 t ADT: 640
GUN CLUB ROAD
PoorOver: POSO CREEK
5.5 MI N/O SR 46, Kern, CA
Built 1966 Load: 40.2 t ADT: 680
SANBORN RD
PoorOver: UP RR & AMTRAK
0.3 MI N ABBOT ST, Monterey, CA
Built 1948 Load: 40.2 t ADT: 28,392
HOWARD ROAD
PoorOver: SAN JOAQUIN RIVER 01
1.6 MI W OF S WOLFE RD, San Joaquin, CA
Built 1975 Load: 40.2 t ADT: 1,482
U.S. HWY 101 (SB)
PoorOver: LLAGAS CREEK
04-SCL-101-R10.63, Santa Clara, CA
Built 1973 Load: 40.2 t ADT: 55,000
U.S. HWY 101 (NB)
PoorOver: LLAGAS CREEK
04-SCL-101-R10.63, Santa Clara, CA
Built 1972 Load: 40.2 t ADT: 55,000
SALMON RIVER ROAD
PoorOver: SALMON RIVER
13.2 MI W/O SAWYERS BAR R, Siskiyou, CA
Built 1966 Load: 40.2 t ADT: 210
EL SEGUNDO BLVD
PoorOver: ACTA
25FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 40.5 t ADT: 11,268
INTERSTATE 5 SB
PoorOver: CANAL ROAD
10-MER-005-19.65, Merced, CA
Built 1966 Load: 40.5 t ADT: 15,500
SB US HIGHWAY 101
PoorOver: COYOTE CREEK
04-SCL-101-29.83, Santa Clara, CA
Built 1947 Load: 40.5 t ADT: 64,000
LOMAND ST
PoorOver: SAN LORENZO RIVER
0.5 MI E SR 9, Santa Cruz, CA
Built 1941 Load: 40.5 t ADT: 3,000
INTERSTATE 5
PoorOver: CASTLE CREEK ROAD
02-SHA-005-63.58, Shasta, CA
Built 1960 Load: 40.5 t ADT: 18,000
GREEN VALLEY RD
PoorOver: GREEN VALLEY CREEK
1.3 MI W SH 116, Sonoma, CA
Built 1958 Load: 40.5 t ADT: 2,700
BRIGGSMORE ROAD
PoorOver: UP RR & BRINK AVENUE
SPRR & 9TH STREET, Stanislaus, CA
Built 1976 Load: 40.5 t ADT: 71,797
MADERA ROAD
PoorOver: UP RR, AMTRAK, METROLINK
0.3 MI S OF STATE RTE 118, Ventura, CA
Built 1981 Load: 40.5 t ADT: 33,000
INTERSTATE 40
PoorOver: BLOSSOM WASH
08-SBD-040-R12.00, San Bernardino, CA
Built 1968 Load: 40.8 t ADT: 19,500
CREEKSIDE DR
PoorOver: SAN RAMON CREEK
200 FT E OF S MAIN ST, Contra Costa, CA
Built 1959 Load: 41.1 t ADT: 5,800
STATE ROUTE 134
PoorOver: PACIFIC AVE
07-LA-134-R6.57-GNDL, Los Angeles, CA
Built 1967 Load: 41.1 t ADT: 240,000
SEVENTH AVE
PoorOver: SAN JOSE CRK CHAN
0.4MI N/O SR-60 FWY, Los Angeles, CA
Built 1967 Load: 41.1 t ADT: 26,484
PARRIOT PL
PoorOver: SAN JOSE CRK
100FT W/O HACIENDA BLVD, Los Angeles, CA
Built 1964 Load: 41.1 t ADT: 2,244
Showing 26,751-26,800 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 |