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
INTERSTATE 680
FairOver: SAN RAMON CREEK
04-CC-680-R4.46-DNVL, Contra Costa, CA
Built 1966 Load: 32.4 t ADT: 176,400
INTERSTATE 80
FairOver: RICHMOND GREENWAY TRAIL
04-CC-080-2.53-RCH, Contra Costa, CA
Built 1954 Load: 32.4 t ADT: 179,000
STATE ROUTE 580
FairOver: RUST DRAIN
04-CC-580-0.72-RCH, Contra Costa, CA
Built 1991 Load: 32.4 t ADT: 84,500
I 580
FairOver: MARINE STREET
04-CC-580-R5.43-RCH, Contra Costa, CA
Built 1990 Load: 32.4 t ADT: 68,000
OLYMPIC-S680 ON
FairOver: LAS TRAMPAS CREEK
04-CC-680-13.72-WLC, Contra Costa, CA
Built 1994 Load: 32.4 t ADT: 10,300
N680-OLYMPIC OFF
FairOver: LAS TRAMPAS CREEK
04-CC-680-13.72-WLC, Contra Costa, CA
Built 1996 Load: 32.4 t ADT: 25,000
NB SR 242 ON-RAMP
FairOver: CONCORD AVENUE
04-CC-242-R1.40-CND, Contra Costa, CA
Built 1996 Load: 32.4 t ADT: 5,200
STATE ROUTE 242
FairOver: RV STORAGE
04-CC-242-R1.61-CND, Contra Costa, CA
Built 1963 Load: 32.4 t ADT: 80,000
SB SR 242 OFFRAMP
FairOver: RV STORAGE
04-CC-242-R1.70-CND, Contra Costa, CA
Built 1996 Load: 32.4 t ADT: 18,300
E80-WILLOW OFF&ON
FairOver: RODEO CREEK
04-CC-080-10.71, Contra Costa, CA
Built 1958 Load: 32.4 t ADT: 2,250
INTERSTATE 680
FairOver: LAUREL DRIVE
04-CC-680-R7.02-DNVL, Contra Costa, CA
Built 1964 Load: 32.4 t ADT: 192,200
W580-CENTRAL OFF
FairOver: CENTRAL AVE
04-CC-580-0.14-RCH, Contra Costa, CA
Built 1991 Load: 32.4 t ADT: 4,300
STATE ROUTE 4
FairOver: FRANKLIN EQUIP & PIPE UC
04-CC-004-R7.27, Contra Costa, CA
Built 1967 Load: 32.4 t ADT: 55,000
E4-S242 CONNECTOR
FairOver: EBMUD SERVICE ROAD
04-CC-004-R14.45-CND, Contra Costa, CA
Built 1978 Load: 32.4 t ADT: 7,500
W580-BAYVIEW OFF
FairOver: NONE
04-CC-580-1.07, Contra Costa, CA
Built 1987 Load: 32.4 t ADT: 3,650
INTERSTATE 80 WB
FairOver: CARQUINEZ STRAITS, RR
04-CC-080-13.80-VAL, Contra Costa, CA
Built 2003 Load: 32.4 t ADT: 154,000
WATERFRONT-N680 ON
FairOver: MARSH WETLANDS
04-CC-680-24.25, Contra Costa, CA
Built 2006 Load: 32.4 t ADT: 3,000
WB ROUTE 4
FairOver: PRIVATE ACCESS ROAD
04-CC-004-R3.87L-MTZ, Contra Costa, CA
Built 2002 Load: 32.4 t ADT: 10,200
STATE ROUTE 4 WB
FairOver: SAND CREEK
04-CC-004-M34.40, Contra Costa, CA
Built 2003 Load: 32.4 t ADT: 23,000
STATE ROUTE 4 WB
FairOver: CENTURY BLVD
04-CC-004-25.00-ANT, Contra Costa, CA
Built 2013 Load: 32.4 t ADT: 57,000
STATE ROUTE 4 WB
FairOver: BART TRACKS,ACCESS ROAD
04-CC-004-R29.69-ANT, Contra Costa, CA
Built 2016 Load: 32.4 t ADT: 47,000
ONRAMP TO SR 4 EB
FairOver: DEER CREEK
04-CC-004-R35.51-BTWD, Contra Costa, CA
Built 2018 Load: 32.4 t ADT: 12,000
WATERFRONT RD
FairOver: UP RR, BNSF RY, & AMTRAK
0.8 MI E OF I-680, Contra Costa, CA
Built 1978 Load: 32.4 t ADT: 2,409
SYCAMORE VLY RD
FairOver: SAN RAMON CREEK
0.5 MI E OF SH 680, Contra Costa, CA
Built 1965 Load: 32.4 t ADT: 28,237
GLENSIDE DR
FairOver: LAS TRAMPAS CREEK
0.1 MI E ST MARY'S ROAD, Contra Costa, CA
Built 1963 Load: 32.4 t ADT: 6,025
BAILEY ROAD
FairOver: MOUNT DIABLO CREEK
0.2 MI NE CONCORD BLVD, Contra Costa, CA
Built 2003 Load: 32.4 t ADT: 5,858
IMHOFF ROAD
FairOver: GRAYSON CREEK
0.8 MI W SOLANO WAY, Contra Costa, CA
Built 1981 Load: 32.4 t ADT: 1,000
PINOLE VLY RD
FairOver: PINOLE CREEK
2.0 MI S/E OF I 80, Contra Costa, CA
Built 1996 Load: 32.4 t ADT: 4,000
TASSAJARA ROAD
FairOver: TASSAJARA CREEK
1.8 MI N COUNTY LINE, Contra Costa, CA
Built 1995 Load: 32.4 t ADT: 7,539
MORAGA WAY
FairOver: W BRANCH SAN LEANDRO CR
0.25 MI NW CANYON RD, Contra Costa, CA
Built 1954 Load: 32.4 t ADT: 10,000
GLENSIDE DR
FairOver: LAS TRAMPAS CREEK
0.1 M E ST MARY'S RD, Contra Costa, CA
Built 1980 Load: 32.4 t ADT: 2,000
BOULEVARD WAY
FairOver: LAS TRAMPAS CREEK
0.2 MI N OLYMPIC BLVD, Contra Costa, CA
Built 1978 Load: 32.4 t ADT: 4,840
COUNTRY CLUB DR
FairOver: SAN LEANDRO CREEK
0.2 MI W CANYON RD, Contra Costa, CA
Built 1999 Load: 32.4 t ADT: 1,000
JOHNSTON ROAD
FairOver: TASSAJARA CREEK
0.4 MI E CAMINO TASSAJARA, Contra Costa, CA
Built 1998 Load: 32.4 t ADT: 644
MINNESOTA AVE
FairOver: SAND CREEK
0.4 MI N/O DAINTY ROAD, Contra Costa, CA
Built 1992 Load: 32.4 t ADT: 7,400
BOLLINGER CANYON
FairOver: MAIN BRANCH ALAMO CREEK
1 MI E CROW CANYON RD, Contra Costa, CA
Built 2006 Load: 32.4 t ADT: 5,000
JAPONICA WAY
FairOver: ALAMO CREEK
1/10 MI E. OF N. MONARCH, Contra Costa, CA
Built 2007 Load: 32.4 t ADT: 1,000
CASABLANCA ROAD
FairOver: MAIN BRANCH ALAMO CREEK
.05 MI E OF KNOLLS CREEK., Contra Costa, CA
Built 2006 Load: 32.4 t ADT: 1,000
N. GALE RIDGE RD
FairOver: WEST BRANCH ALAMO CREEK
0.1 MI W OF DOUGHERTY RD, Contra Costa, CA
Built 2005 Load: 32.4 t ADT: 2,300
WINDEMERE PARKWAY
FairOver: CAMINO TASSAJARA
.2 MI W, CAMINO TASSAJARA, Contra Costa, CA
Built 2007 Load: 32.4 t ADT: 2,000
CLIPPER DRIVE
FairOver: FRISK CREEK
0.1 MI EAST OF NEWPORT DR, Contra Costa, CA
Built 1987 Load: 32.4 t ADT: 1,500
NEWPORT DRIVE
FairOver: KELLOGG CREEK
0.6 MI NORTH OF SR 4, Contra Costa, CA
Built 1987 Load: 32.4 t ADT: 1,500
DOUGHERTY
FairOver: LOWER M. BRANCH ALAMO CR
AT BOLLINGER CANYON RD, Contra Costa, CA
Built 2007 Load: 32.4 t ADT: 100
SHADY WILLOW LANE
FairOver: SAND CREEK
0.3 MI N SAND CREEK RD, Contra Costa, CA
Built 2007 Load: 32.4 t ADT: 3,700
TSUSHIMA STREET
FairOver: REFUGIO CREEK
AT JOHN MUIR PKWY, Contra Costa, CA
Built 2008 Load: 32.4 t ADT: 1,000
LAUREL ROAD
FairOver: MARSH CREEK
488 M. E. MAIN ST./SR-4, Contra Costa, CA
Built 1990 Load: 32.4 t ADT: 4,200
PUTNAM STREET
FairOver: WEST ANTIOCH CREEK
AT 'G' STREET, Contra Costa, CA
Built 1973 Load: 32.4 t ADT: 4,490
CHURCH LANE
FairOver: WILDCAT CREEK
0.1 MI S SAN PABLO AVE, Contra Costa, CA
Built 1973 Load: 32.4 t ADT: 13,320
GIANT HWY
FairOver: RHEAM CREEK
0.1 MI S STANTON AVE, Contra Costa, CA
Built 1993 Load: 32.4 t ADT: 4,220
OAK GROVE RD
FairOver: PINE CREEK
AT WALNUT AVE, Contra Costa, CA
Built 1974 Load: 32.4 t ADT: 6,600
Showing 12,351-12,400 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.