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 40 WB
PoorOver: BNSF RY & AMTRAK
08-SBD-040-R107.56, San Bernardino, CA
Built 2006 Load: 32.4 t ADT: 7,500
INTERSTATE 40
PoorOver: MACDONALD WASH
08-SBD-040-R94.37, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 13,600
FAIRWAY DRIVE
PoorOver: WARM CREEK
0.5 MI W OF RTE I-215, San Bernardino, CA
Built 1973 Load: 32.4 t ADT: 4,000
FOURTH ST
PoorOver: LITTLE CREEK OVERFLOW
0.25 MI E OF RTE 66, San Bernardino, CA
Built 1973 Load: 32.4 t ADT: 8,500
YUCCA ST
PoorOver: BNSF RY, AMTRAK, & UP RR
0.3 MI N OF MAIN ST, San Bernardino, CA
Built 1970 Load: 32.4 t ADT: 3,100
OAK GLEN ROAD
PoorOver: WILSON CREEK
0.2 MI W/O BRYANT ST, San Bernardino, CA
Built 1999 Load: 32.4 t ADT: 13,709
ROCK SPRINGS ROAD
PoorOver: MOJAVE RIVER
.9 MI E ARROWHEAD LK RD, San Bernardino, CA
Built 2005 Load: 32.4 t ADT: 12,780
ORANGE SHOW ROAD
PoorOver: TWIN WARM CREEK CHANNEL
0.5 MI W. OF WATERMAN AVE, San Bernardino, CA
Built 1999 Load: 32.4 t ADT: 13,607
INTERSTATE 805
PoorOver: TELEGRAPH CANYON DRAIN
11-SD-805-6.12-CHV, San Diego, CA
Built 1971 Load: 32.4 t ADT: 250,000
DAIRY MART ROAD
PoorOver: MESA CREEK
0.15 MI S/O ROUTE I-5, San Diego, CA
Built 1978 Load: 32.4 t ADT: 9,991
CITRUS AVE
PoorOver: ESCONDIDO CREEK
0.3 MI N/O VALLEY PKWY, San Diego, CA
Built 1971 Load: 32.4 t ADT: 14,600
MURRAY DRIVE
PoorOver: MTDB LRT & SDIV RR
AT INT. OF WATER ST, San Diego, CA
Built 1988 Load: 32.4 t ADT: 8,500
PACIFIC ST.
PoorOver: LOMA ALTA CREEK
0.3MI S/O OCEANSIDE BLVD, San Diego, CA
Built 1985 Load: 32.4 t ADT: 4,320
MAST BLVD
PoorOver: SANTEE LAKE #2
1MI E/O WEST HILLS PKWY, San Diego, CA
Built 1992 Load: 32.4 t ADT: 10,100
LEVANTE STREET
PoorOver: ENCINITAS CREEK
250 FT W/O EL CAMINO REAL, San Diego, CA
Built 2000 Load: 32.4 t ADT: 1,986
INTERSTATE 5 SB
PoorOver: DELTA-MENDOTA CANAL
10-SJ-005-3.27, San Joaquin, CA
Built 1971 Load: 32.4 t ADT: 11,400
INTERSTATE 5 NB
PoorOver: DELTA-MENDOTA CANAL
10-SJ-005-3.27, San Joaquin, CA
Built 1971 Load: 32.4 t ADT: 11,400
WAVERLY RD
PoorOver: DUCK CREEK BRANCH
1.2 MI N OF SR 4, San Joaquin, CA
Built 2004 Load: 32.4 t ADT: 71
STATE ROUTE 1
PoorOver: SANTA ROSA CREEK
05-SLO-001-50.07, San Luis Obispo, CA
Built 2008 Load: 32.4 t ADT: 6,000
HILLSDALE BLVD
PoorOver: MARINA LAGOON
0.1 MI NE OF NORFOLK ST, San Mateo, CA
Built 1963 Load: 32.4 t ADT: 46,460
GAZOS CREEK ROAD
PoorOver: GAZOS CREEK
3.3 MI EAST OF CLOVERDALE, San Mateo, CA
Built 1982 Load: 32.4 t ADT: 218
MATTHEWS STREET
PoorOver: SAN PEDRO CREEK
JUST WEST OF FAIRVIEW, Santa Barbara, CA
Built 2005 Load: 32.4 t ADT: 1,400
STATE ROUTE 237 WB
PoorOver: COYOTE CREEK
04-SCL-237-8.72-SJS, Santa Clara, CA
Built 1961 Load: 32.4 t ADT: 62,500
NB US HIGHWAY 101
PoorOver: COYOTE CREEK
04-SCL-101-R26.47-SJS, Santa Clara, CA
Built 1980 Load: 32.4 t ADT: 50,000
SB US HIGHWAY 101
PoorOver: COYOTE CREEK
04-SCL-101-R19.21-SJS, Santa Clara, CA
Built 1980 Load: 32.4 t ADT: 62,500
S101-E25 CONNECTOR
PoorOver: DRAINAGE DITCH
04-SCL-101-3.25, Santa Clara, CA
Built 1989 Load: 32.4 t ADT: 8,900
STEVENS CR BLVD
PoorOver: CALABAZAS CREEK
AT VALLCO PKWY, Santa Clara, CA
Built 1978 Load: 32.4 t ADT: 27,600
POLLARD RD
PoorOver: SAN TOMAS AQUINO CREEK
NEAR QUITO RD, Santa Clara, CA
Built 1976 Load: 32.4 t ADT: 20,000
MIDDLEFIELD RD
PoorOver: ADOBE CREEK
E MEADOW DR & CHARLSTN RD, Santa Clara, CA
Built 1989 Load: 32.4 t ADT: 20,000
E CHARLESTON RD
PoorOver: ADOBE CREEK
ALMA ST & MIDDLEFIELD RD, Santa Clara, CA
Built 1988 Load: 32.4 t ADT: 16,500
BUTTERFIELD BLVD
PoorOver: RAILROAD AVENUE
SOUTH OF TENNANT AVE, Santa Clara, CA
Built 2013 Load: 32.4 t ADT: 10,002
WAVERLEY ST
PoorOver: MATADERO CREEK
K ST & LOMA VERDE AVE, Santa Clara, CA
Built 1989 Load: 32.4 t ADT: 2,500
COWPER ST
PoorOver: MATADERO CREEK
COLO AVE & LOMA VERDE AV, Santa Clara, CA
Built 1989 Load: 32.4 t ADT: 5,000
OLD SANTA CRUZ HWY
PoorOver: ALDERCROFT CREEK
0.6 MI SE/O SR17, Santa Clara, CA
Built 2007 Load: 32.4 t ADT: 1,950
STATE ROUTE 152
PoorOver: SALSIPUEDES CREEK
05-SCR-152-R2.06, Santa Cruz, CA
Built 1967 Load: 32.4 t ADT: 7,000
ROGGE LANE
PoorOver: PAJARO RIVER
0.8 MI S OF S.R. 129, Santa Cruz, CA
Built 1994 Load: 32.4 t ADT: 2,500
MURRAY-EATON ST
PoorOver: WOODS LAGOON
W/O INT/O LUKE AVE, Santa Cruz, CA
Built 1963 Load: 32.4 t ADT: 25,000
MANABE OW ROAD
PoorOver: WATSONVILLE SLOUGH
OFF OHLONE PKWY CIRCLE, Santa Cruz, CA
Built 2017 Load: 32.4 t ADT: 5,000
EMILY RD
PoorOver: ANDERSON CREEK
EMILY RD 300 FT E OF S ST, Shasta, CA
Built 1980 Load: 32.4 t ADT: 958
STATE ROUTE 96
PoorOver: THOMPSON CREEK
02-SIS-096-52.48, Siskiyou, CA
Built 1952 Load: 32.4 t ADT: 615
BARKHOUSE CREEK RD
PoorOver: BARKHOUSE CREEK
0.7 MI S OF WALKER RD, Siskiyou, CA
Built 1998 Load: 32.4 t ADT: 29
STATE ROUTE 12
PoorOver: UP RR
04-SOL-012-R14.68, Solano, CA
Built 1993 Load: 32.4 t ADT: 12,200
STATE ROUTE 12
PoorOver: ALONZO DRAIN
04-SOL-012-L2.94-FRFD, Solano, CA
Built 1980 Load: 32.4 t ADT: 40,500
CAMROSE AVE
PoorOver: UNION DIVERSION CANAL
1/4 MI N CEMENT HILL RD, Solano, CA
Built 1991 Load: 32.4 t ADT: 1,000
CORDELIA ROAD
PoorOver: SUISUN CREEK
WEST OF CHADBOURNE RD, Solano, CA
Built 2007 Load: 32.4 t ADT: 4,277
SR 12
PoorOver: CALABAZAS CREEK
04-SON-012-29.41, Sonoma, CA
Built 1989 Load: 32.4 t ADT: 15,300
STATE ROUTE 128
PoorOver: RUSSIAN RIVER
04-SON-128-5.44, Sonoma, CA
Built 2006 Load: 32.4 t ADT: 2,650
STATE ROUTE 128
PoorOver: MAACAMA CREEK
04-SON-128-17.25, Sonoma, CA
Built 2011 Load: 32.4 t ADT: 2,900
OLD REDWOOD HWY
PoorOver: LAGUNA DE SANTA ROSA
COMMERCE BLVD, Sonoma, CA
Built 1956 Load: 32.4 t ADT: 9,800
TRENTON HEALDSBRG
PoorOver: MARK WEST CREEK
0.3 MI N OF RIVER RD, Sonoma, CA
Built 1988 Load: 32.4 t ADT: 1,700
Showing 26,551-26,600 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 |