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 5
FairOver: DUNNIGAN CREEK
03-YOL-005-R25.97, Yolo, CA
Built 1968 Load: 32.4 t ADT: 30,000
STATE ROUTE 113
FairOver: DRAINAGE DITCH
03-YOL-113-R2.33, Yolo, CA
Built 1976 Load: 32.4 t ADT: 32,500
I-505 NB OFF RAMP
FairOver: HUNGRY HOLLOW WTRSHD CH
03-YOL-505-13.34, Yolo, CA
Built 1977 Load: 32.4 t ADT: 100
I-505 SB ON RAMP
FairOver: HUNGRY HOLLOW WTRSHD CH
03-YOL-505-13.42, Yolo, CA
Built 1977 Load: 32.4 t ADT: 100
COUNTY ROAD 19
FairOver: HUNGRY HOLLOW WTRSHD CH
03-YOL-505-13.46, Yolo, CA
Built 1977 Load: 32.4 t ADT: 8,000
INTERSTATE 80
FairOver: BIKE & PEDESTRIAN TUNNEL
03-YOL-080-0.01-DVS, Yolo, CA
Built 2001 Load: 32.4 t ADT: 128,000
SH 128
FairOver: APRICOT DRAW
03-YOL-128-7.70-WIN, Yolo, CA
Built 2001 Load: 32.4 t ADT: 6,500
C. R. 85
FairOver: CACHE CREEK
0.25 MI N OF S.H. 16, Yolo, CA
Built 1997 Load: 32.4 t ADT: 461
COUNTY ROAD 16
FairOver: KNIGHTS LANDING RIDGE CU
2.1 MILE EAST OF CR 102, Yolo, CA
Built 2001 Load: 32.4 t ADT: 290
COUNTY ROAD 99W
FairOver: CACHE CREEK
APPROX 1 MI NW/O CO RD 18, Yolo, CA
Built 2003 Load: 32.4 t ADT: 862
CO RD 89
FairOver: COTTONWOOD SLOUGH
0.1 MI S OF CR 23, Yolo, CA
Built 1993 Load: 32.4 t ADT: 1,500
COUNTY ROAD 27
FairOver: WILLOW SLOUGH
1.5 MI W OF CO RD 98, Yolo, CA
Built 1987 Load: 32.4 t ADT: 1,476
COUNTY ROAD 92
FairOver: BRETONA CREEK
0.12 MI SOUTH OF CR 12A, Yolo, CA
Built 2004 Load: 32.4 t ADT: 200
COUNTY ROAD 19
FairOver: SLOUGH S11
0.2 MI W OF I 505, Yolo, CA
Built 1976 Load: 32.4 t ADT: 1,010
CR #93
FairOver: SOUTH FORK WILLOW SLOUGH
1/2 MI S OF CR #24, Yolo, CA
Built 1989 Load: 32.4 t ADT: 107
SB JEFFERSON BLVD
FairOver: DEEP WATER CANAL
0.2 MI S OF STONE ST, Yolo, CA
Built 2005 Load: 32.4 t ADT: 17,499
CO RD 57
FairOver: CACHE CREEK
0.42 MI E OF SH 16, Yolo, CA
Built 2010 Load: 32.4 t ADT: 50
RAILROAD AVE(CR89)
FairOver: DRY SLOUGH
0.37 N OF CR 33, Yolo, CA
Built 2015 Load: 32.4 t ADT: 2,100
SOUTH RIVER ROAD
FairOver: SACRAMENTO BARGE CANAL
0.3 MI E OF JEFFERSON BL, Yolo, CA
Built 2015 Load: 32.4 t ADT: 5,000
STATE ROUTE 20
FairOver: YUBA RIVER, TIMBUCTOO PL
03-YUB-020-R17.73, Yuba, CA
Built 1993 Load: 32.4 t ADT: 7,800
STATE ROUTE 20
FairOver: SMARTSVILLE FARM CANAL
03-YUB-020-R20.92, Yuba, CA
Built 2019 Load: 32.4 t ADT: 8,421
LOMA RICA RD
FairOver: JACK SLOUGH
0.8 MI N OF SR 20, Yuba, CA
Built 1957 Load: 32.4 t ADT: 2,670
ERLE ROAD
FairOver: UP RR & AMTRAK
0.1 MI EAST OF S.R. 70, Yuba, CA
Built 1980 Load: 32.4 t ADT: 2,890
MATHEWS LANE
FairOver: JACK SLOUGH
0.7 MI N WOODRUFF LANE, Yuba, CA
Built 1988 Load: 32.4 t ADT: 1,470
FRUITLAND RD
FairOver: LITTLE DRY CREEK
0.5 MI NW MARYSVILLE RD, Yuba, CA
Built 1987 Load: 32.4 t ADT: 1,030
RIVERBANK DRIVE
FairOver: OLIVEHURST CANAL
1/4 MI E OF EDGEWATER CIR, Yuba, CA
Built 2007 Load: 32.4 t ADT: 1,200
CHUCK YEAGER ROAD
FairOver: VINEYARD CREEK
0.3 MI SW OF WALDO ROAD, Yuba, CA
Built 2013 Load: 32.4 t ADT: 500
SCALES ROAD
FairOver: SLATE CREEK
3 MI EAST OF LA PORTE RD, Yuba, CA
Built 2017 Load: 32.4 t ADT: 100
SPRING VALLEY ROAD
FairOver: BROWNS VALLEY DITCH
2 MI E OF SR 20, Yuba, CA
Built 2015 Load: 32.4 t ADT: 400
MARYSVILLE ROAD
FairOver: DOBBINS CREEK
0.1 MI N OF POWDER HOUSE, Yuba, CA
Built 1999 Load: 32.4 t ADT: 2,400
AFTON RD
FairOver: SCHOHR DRAIN
0.3 MI E COLUSA CO. LINE, Butte, CA
Built 1957 Load: 32.6 t ADT: 60
WILSON LANDING RD
FairOver: PINE CREEK
4.9 MI W OF SH 99, Butte, CA
Built 1962 Load: 32.6 t ADT: 164
ENTRANCE ROAD
FairOver: MORRISON CREEK
NAVY RESEARCH CENTER, Kings, CA
Built 1965 Load: 32.6 t ADT: 150
INTERSTATE 5
FairOver: INDIANA STREET
07-LA-005-14.94-LA, Los Angeles, CA
Built 1948 Load: 32.6 t ADT: 256,000
SANTIAGO CANYON RD
FairOver: WILLIAMS CANYON CREEK
0.8 MI N/O MODJESKA RD, Orange, CA
Built 1970 Load: 32.6 t ADT: 8,000
BELL ROAD
FairOver: WISE CANAL
0.4 MI E OF S.H. 49, Placer, CA
Built 1975 Load: 32.6 t ADT: 19,716
NAT'L TRAILS HWY
FairOver: DRAINAGE DITCH
0.9KM NW OF IWO JIMA ST., San Bernardino, CA
Built 1943 Load: 32.6 t ADT: 1,000
NAT'L TRAILS HWY
FairOver: DRAINAGE DITCH
0.6KM SE OF N IWO JIMA ST, San Bernardino, CA
Built 1943 Load: 32.6 t ADT: 1,000
SAN MATEO ROAD
FairOver: SAN MATEO CREEK
SAN MATEO ROAD OVER SAN M, San Diego, CA
Built 1970 Load: 32.6 t ADT: 4,300
BASILONE ROAD
FairOver: S. FORK SAN ONOFRE CREEK
330' SE OF AIRFIELD ROAD, San Diego, CA
Built 1960 Load: 32.6 t ADT: 4,775
LAS PULGAS ROAD
FairOver: PIEDRA DE LA LUMBRE CRK
.3 MI NE OF STUART MESA R, San Diego, CA
Built 1990 Load: 32.6 t ADT: 4,920
STUART MESA ROAD
FairOver: LAS PULGAS CREEK
.6 MI SE OF LAS PULGAS RD, San Diego, CA
Built 1970 Load: 32.6 t ADT: 4,750
BELLEAU WOOD AVE.
FairOver: MCDR GATE 4 ENTRY ROAD
GATE 4 AT PACIFIC HIGHWAY, San Diego, CA
Built 1986 Load: 32.6 t ADT: 2,000
MITSCHER WAY
FairOver: ROSE CREEK
1.5KM SOUTH OF MIRAMAR RD, San Diego, CA
Built 1935 Load: 32.6 t ADT: 4,000
AVILA BEACH DR
FairOver: SAN LUIS OBISPO CREEK
AVILA RD, San Luis Obispo, CA
Built 1967 Load: 32.6 t ADT: 7,434
CAMPBELL AVE
FairOver: LOS GATOS CREEK
NEAR SH 17, Santa Clara, CA
Built 1940 Load: 32.6 t ADT: 23,509
GEER-ALBERS ROAD
FairOver: T.I.D. CERES MAIN CANAL
S/O HATCH RD, Stanislaus, CA
Built 1925 Load: 32.6 t ADT: 9,842
HATCH ROAD
FairOver: CERES MAIN SPWY
W/O FAITH HOME ROAD, Stanislaus, CA
Built 1916 Load: 32.6 t ADT: 11,486
POWELL ST
FairOver: UP RR, BNSF RY, & AMTRAK
0.3 MI E OF I-80, Alameda, CA
Built 1968 Load: 32.7 t ADT: 23,000
VETERANS ROAD
FairOver: ARROYO VALLEY
Livermore VAMC 4951 Arroy, Alameda, CA
Built 1992 Load: 32.7 t ADT: 600
Showing 14,701-14,750 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.