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
RIVERSIDE DR
FairOver: SWEETWATER RIVER
0.3 MI N/O SR 79, San Diego, CA
Built 1947 Load: 22.0 t ADT: 2,500
MARKET ST
FairOver: HILLSIDE
NORTH CORBETT AVE, San Francisco, CA
Built 1958 Load: 22.0 t ADT: 55,000
STATE ROUTE 99 NB
FairOver: MOKELUMNE RI,FRONTAGE R
10-SJ-099-31.72, San Joaquin, CA
Built 1930 Load: 22.0 t ADT: 29,500
INTERSTATE 205
FairOver: DELTA-MENDOTA CANAL
10-SJ-205-0.15, San Joaquin, CA
Built 1953 Load: 22.0 t ADT: 106,000
CORBETT CANYON RD
FairOver: QUIEN SABE CREEK
0.8 MI SE SR 227, San Luis Obispo, CA
Built 1938 Load: 22.0 t ADT: 1,433
CHORRO ST
FairOver: SAN LUIS OBISPO CREEK
JUST W OF HIGUERA, San Luis Obispo, CA
Built 1923 Load: 22.0 t ADT: 5,400
MAINTANENCE ROAD
FairOver: PERMANENTE CREEK
0.5 MI WEST OF SHORELINE, Santa Clara, CA
Built 1997 Load: 22.0 t ADT: 200
STATE ROUTE 1
FairOver: SCOTT CREEK
05-SCR-001-31.55, Santa Cruz, CA
Built 1939 Load: 22.0 t ADT: 4,800
STATE ROUTE 273
FairOver: OLNEY CREEK
02-SHA-273-12.58-RDG, Shasta, CA
Built 1940 Load: 22.0 t ADT: 23,000
DERSCH RD
FairOver: LACK CREEK
2.8 MI W ASH CR RD, Shasta, CA
Built 1963 Load: 22.0 t ADT: 1,120
PITTVILLE ROAD
FairOver: PIT RIVER
1 MI N DEAN KNOCH RD, Shasta, CA
Built 1949 Load: 22.0 t ADT: 750
EASTSIDE RD
FairOver: OLNEY CREEK
0.1 MI S BONNYVIEW RD, Shasta, CA
Built 1954 Load: 22.0 t ADT: 3,828
CANYON CREEK RD
FairOver: SCOTT RIVER
0.1 MI S/O SCOTT RIV RD, Siskiyou, CA
Built 1938 Load: 22.0 t ADT: 6
BOULDER CREEK RD
FairOver: CANYON CREEK
0.1 MI SW SCOTT RIVER RD, Siskiyou, CA
Built 1993 Load: 22.0 t ADT: 8
SUGAR CREEK ROAD
FairOver: MINERS CREEK
0.2 MI S MINER CREEK RD, Siskiyou, CA
Built 1976 Load: 22.0 t ADT: 41
OLD REDWOOD HWY
FairOver: POOL CREEK
0.5 MI S/O PLEASANT RD, Sonoma, CA
Built 1925 Load: 22.0 t ADT: 13,800
TACHEVAH DR
FairOver: DRAINAGE CANAL
0.1 M WEST NEUTOMAS AVE, Sonoma, CA
Built 1968 Load: 22.0 t ADT: 3,000
RAINSVILLE RD
FairOver: WIGGINS CREEK
0.8 MI W STONY POINT RD, Sonoma, CA
Built 1986 Load: 22.0 t ADT: 3,200
CHALK HILL RD
FairOver: BROOKS CREEK
4.5 MI S OF SR 128, Sonoma, CA
Built 1956 Load: 22.0 t ADT: 850
SWEETWTR SPRNGS RD
FairOver: PORTER CREEK
6.6 MI W ARMSTRONG RD, Sonoma, CA
Built 1968 Load: 22.0 t ADT: 140
FITCH MOUNTAIN RD
FairOver: HILLSIDE
1.6 MI E JCT HEALDSBG AVE, Sonoma, CA
Built 1970 Load: 22.0 t ADT: 525
ROAD 99W
FairOver: TRUCKEE CREEK
0.1 MI NORTH OF HAMILTON, Tehama, CA
Built 1917 Load: 22.0 t ADT: 2,000
RAWSON RD
FairOver: UNNAMED DRAINAGE
0.3 MI SOUTH OF GYLE RD, Tehama, CA
Built 1957 Load: 22.0 t ADT: 200
ROWLES ROAD
FairOver: SHORT CREEK
1.5 MI W OF S.H. 99, Tehama, CA
Built 1939 Load: 22.0 t ADT: 289
AVE 220
FairOver: LEWIS CREEK
0.25 MI E OF RD 244, Tulare, CA
Built 1956 Load: 22.0 t ADT: 200
AVE 264
FairOver: CAMERON CREEK
0.5 MI E OF RD 100, Tulare, CA
Built 1946 Load: 22.0 t ADT: 1,275
STATE ROUTE 45
FairOver: SYCAMORE SLOUGH
03-YOL-045-0.13, Yolo, CA
Built 1939 Load: 22.0 t ADT: 860
COUNTY ROAD #26
FairOver: UNION SCHOOL SLOUGH TRIB
0.58 MI W/O CR #87, Yolo, CA
Built 1971 Load: 22.0 t ADT: 10
MINERS RANCH RD
FairOver: HONCUT CREEK
0.8 MI N/O BANGOR HWY, Butte, CA
Built 1954 Load: 22.4 t ADT: 2,072
NORMAN ROAD
FairOver: WILLOW CREEK
0.2 MI W YOUNG'S RD, Colusa, CA
Built 1973 Load: 22.4 t ADT: 282
UPPER TRUCKEE RD
FairOver: ECHO CREEK
0.2 MI S OF U.S. 50, El Dorado, CA
Built 1951 Load: 22.4 t ADT: 2,390
BEAR CREEK RD
FairOver: BEAR CREEK
0.9 MI SE/O TRAVERS CR RD, El Dorado, CA
Built 1958 Load: 22.4 t ADT: 300
E JENSEN AVE WB
FairOver: FOWLER SWITCH CANAL
0.3 MI W OF BETHEL AVE, Fresno, CA
Built 1962 Load: 22.4 t ADT: 13,400
E LEWISTON AVE
FairOver: GRANT CANAL (E DITCH)
0.01 MI WEST OF MAPLE AVE, Fresno, CA
Built 1946 Load: 22.4 t ADT: 200
N GOLDENROD AVE
FairOver: HERNDON CANAL
AT SHAW AVE, Fresno, CA
Built 1938 Load: 22.4 t ADT: 110
W HERNDON AVE
FairOver: 2ND LIFT CANAL
1.5 MI EAST OF JERROLD AV, Fresno, CA
Built 1965 Load: 22.4 t ADT: 125
ROAD 64
FairOver: COLUSA DRAIN
0.6 MI W RD WW, Glenn, CA
Built 1941 Load: 22.4 t ADT: 44
ROHNERVILLE ROAD
FairOver: STRONGS CREEK
0.3 MI W OF NEWBURG RD, Humboldt, CA
Built 1915 Load: 22.4 t ADT: 4,924
ERSKINE RD
FairOver: WESTSIDE MAIN CANAL
0.75 MI N/O WORTHINGTON, Imperial, CA
Built 1950 Load: 22.4 t ADT: 109
RD 315
FairOver: SUSAN RIVER
0.6 MI S OF CR 215, Lassen, CA
Built 1987 Load: 22.4 t ADT: 100
RD 303 (GALEPPI)
FairOver: HARTSON SLOUGH
0.5 MI N/O RD 305, Lassen, CA
Built 1978 Load: 22.4 t ADT: 100
214TH ST
FairOver: ARTESIA-NORWALK STORM DN
0.1MI W/O NORWALK BLVD, Los Angeles, CA
Built 1956 Load: 22.4 t ADT: 2,828
MUIR WOODS RD
FairOver: REDWOOD CREEK
2.0 MI N OF SR 1, Marin, CA
Built 1946 Load: 22.4 t ADT: 2,090
CARMEL VALLEY RD
FairOver: PALOMA CREEK
4 MI N ARROYO SECO RD, Monterey, CA
Built 1959 Load: 22.4 t ADT: 290
SILVERADO CANYN RD
FairOver: LADD CANYON
2.2 MI. E/O SANTIAGO ROAD, Orange, CA
Built 1947 Load: 22.4 t ADT: 2,000
LIVE OAK CYN RD
FairOver: SAN TIMOTEO CREEK
0.1 MI. E/O SAN TIMOTEO, Riverside, CA
Built 1954 Load: 22.4 t ADT: 4,470
OLIVER STREET
FairOver: CHANNEL LINE "F"
0.6 MI N IRIS AVENUE, Riverside, CA
Built 2007 Load: 22.4 t ADT: 4,200
TAVERNOR RD
FairOver: PASTURE CREEK
0.9 MI S DILLARD RD, Sacramento, CA
Built 1981 Load: 22.4 t ADT: 1,163
MESQUITE ST
FairOver: CALIFORNIA AQUEDUCT
0.1 MI E MAPLE AVE, San Bernardino, CA
Built 1971 Load: 22.4 t ADT: 1,403
INTERSTATE 580 EB
FairOver: CORRAL HOLLOW CREEK
10-SJ-580-7.88, San Joaquin, CA
Built 1966 Load: 22.4 t ADT: 16,000
Showing 9,651-9,700 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.