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
STATE ROUTE 4
FairOver: DUCK CREEK
10-SJ-004-R22.72, San Joaquin, CA
Built 1951 Load: 32.4 t ADT: 4,550
SR 4
FairOver: LITTLEJOHNS CREEK
10-SJ-004-33.59, San Joaquin, CA
Built 1988 Load: 32.4 t ADT: 4,800
STATE ROUTE 99 SB
FairOver: SOUTH CHANNEL DRY CREEK
10-SJ-099-38.51, San Joaquin, CA
Built 1938 Load: 32.4 t ADT: 29,500
STATE ROUTE 99 NB
FairOver: SOUTH CHANNEL DRY CREEK
10-SJ-099-38.51, San Joaquin, CA
Built 1955 Load: 32.4 t ADT: 29,500
STATE ROUTE 12
FairOver: LITTLE POTATO SLOUGH
10-SJ-012-R4.44, San Joaquin, CA
Built 1991 Load: 32.4 t ADT: 15,000
INTERSTATE 5 NB
FairOver: BROOKSIDE, CALAVERAS RIV
10-SJ-005-29.56, San Joaquin, CA
Built 1968 Load: 32.4 t ADT: 124,000
INTERSTATE 205 WB
FairOver: UP RR
10-SJ-205-R11.60, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 48,500
INTERSTATE 205 EB
FairOver: UP RR
10-SJ-205-R11.60, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 48,500
INTERSTATE 205 WB
FairOver: CANAL ROAD
10-SJ-205-R11.72, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 48,500
INTERSTATE 205 EB
FairOver: CANAL ROAD
10-SJ-205-R11.72, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 48,500
INTERSTATE 5
FairOver: BUENA VISTA UC
10-SJ-005-27.28-STKN, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 56,500
RAMP/CONNECTOR 5
FairOver: CARLTON AVE
10-SJ-005-27.66-STKN, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 1,750
INTERSTATE 5 NB
FairOver: ROTH ROAD
10-SJ-005-R19.58, San Joaquin, CA
Built 1971 Load: 32.4 t ADT: 42,250
INTERSTATE 5 NB
FairOver: EBMUD AQUEDUCT
10-SJ-005-29.83, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 124,000
INTERSTATE 5 SB
FairOver: BARBER ROAD
10-SJ-005-49.18, San Joaquin, CA
Built 1979 Load: 32.4 t ADT: 26,500
INTERSTATE 5
FairOver: BARBER ROAD
10-SJ-005-49.18, San Joaquin, CA
Built 1979 Load: 32.4 t ADT: 26,500
SR 120 WB
FairOver: UP RR & ACE
10-SJ-120-R1.81, San Joaquin, CA
Built 1995 Load: 32.4 t ADT: 37,500
E132 -S5 CONNECTOR
FairOver: DELTA-MENDOTA CANAL
10-SJ-132-3.22, San Joaquin, CA
Built 1971 Load: 32.4 t ADT: 5,000
ROUTE 12
FairOver: FARMER ACCESS
10-SJ-012-2.61, San Joaquin, CA
Built 2016 Load: 32.4 t ADT: 18,200
STATE ROUTE 4
FairOver: STATE ROUTE 4
10-SJ-004-R15.70-STKN, San Joaquin, CA
Built 2017 Load: 32.4 t ADT: 15,800
MOUNTAIN HOUSE RD
FairOver: CALIFORNIA AQUEDUCT
0.1 MI S. SCHULTE RD, San Joaquin, CA
Built 1993 Load: 32.4 t ADT: 4,403
WEBER ST
FairOver: MORMON SLOUGH
0.3 MI W LINCOLN ST, San Joaquin, CA
Built 1969 Load: 32.4 t ADT: 6,100
CHRISMAN ROAD
FairOver: DELTA-MENDOTA CANAL
1.2 MI NORTH OF I-580, San Joaquin, CA
Built 1948 Load: 32.4 t ADT: 617
ELLIOT RD
FairOver: N OVFLOW MOKELUMNE RIVER
0.7 MI NW OF SH 88/12, San Joaquin, CA
Built 1955 Load: 32.4 t ADT: 2,513
CORRAL HOLLOW RD
FairOver: CORRAL HOLLOW CREEK
3.3 MI SW OF I-580, San Joaquin, CA
Built 1959 Load: 32.4 t ADT: 1,006
CORRAL HOLLOW RD
FairOver: CORRAL HOLLOW CREEK
2.8 MI SW OF I-580, San Joaquin, CA
Built 1959 Load: 32.4 t ADT: 1,006
CORRAL HOLLOW RD
FairOver: CORRAL HOLLOW CREEK
2.1 MI SW OF S.H. 580, San Joaquin, CA
Built 1959 Load: 32.4 t ADT: 1,006
CORRAL HOLLOW RD
FairOver: CORRAL HOLLOW CREEK
1.5 MI SW OF I-580, San Joaquin, CA
Built 1959 Load: 32.4 t ADT: 1,006
CORRAL HOLLOW RD
FairOver: CORRAL HOLLOW CREEK
0.9 MI SW OF I-580, San Joaquin, CA
Built 1959 Load: 32.4 t ADT: 1,006
ALPINE RD
FairOver: PIXLEY CREEK
0.4 MI N LIVE OAK RD, San Joaquin, CA
Built 1977 Load: 32.4 t ADT: 1,032
COLLIER RD
FairOver: SOUTH FORK COYOTE CREEK
1.3 MI E OF TULLY RD, San Joaquin, CA
Built 1963 Load: 32.4 t ADT: 514
COLE DRIVE
FairOver: MOSHER SLOUGH
N OF ASHLEY LANE, San Joaquin, CA
Built 1977 Load: 32.4 t ADT: 566
LIVE OAK RD
FairOver: PIXLEY SLOUGH
0.1 MI EAST OF S.H. 99, San Joaquin, CA
Built 1993 Load: 32.4 t ADT: 488
TRACY BOULEVARD
FairOver: CORRAL HOLLOW CREEK
1.3 MI N OF SR 580, San Joaquin, CA
Built 1990 Load: 32.4 t ADT: 999
MOUNTAIN HOUSE RD
FairOver: DELTA-MENDOTA CANAL
0.8 MI S OF I-205, San Joaquin, CA
Built 1993 Load: 32.4 t ADT: 7,819
ORO AVENUE
FairOver: MORMON SLOUGH
0.3 MI SOUTH MAIN ST, San Joaquin, CA
Built 1988 Load: 32.4 t ADT: 4,300
SCHULTE ROAD
FairOver: DELTA-MENDOTA CANAL
0.2 MI W HANSEN RD, San Joaquin, CA
Built 1993 Load: 32.4 t ADT: 6,662
HANSEN ROAD
FairOver: DELTA-MENDOTA CANAL
0.3 MI S SCHULTE RD, San Joaquin, CA
Built 1993 Load: 32.4 t ADT: 2,119
GAFFERY RD
FairOver: CALIFORNIA AQUEDUCT
0.4 MI W KOSTER RD, San Joaquin, CA
Built 1967 Load: 32.4 t ADT: 50
MARIPOSA RD DRIVWY
FairOver: DUCK CREEK S BRANCH
DRIVEWAY SE CARPENTER RD, San Joaquin, CA
Built 1974 Load: 32.4 t ADT: 60
TAM O'SHANTER DR
FairOver: MOSHER SLOUGH
0.5 MI N HAMMER LANE, San Joaquin, CA
Built 1981 Load: 32.4 t ADT: 7,968
CHERBOURG WAY
FairOver: MOSHER SLOUGH
0.6 MI S MORASA LANE, San Joaquin, CA
Built 1981 Load: 32.4 t ADT: 2,500
CADLE RD
FairOver: SOUTH PADDY CREEK
0.1 MI N OF GREENLAND RD., San Joaquin, CA
Built 1983 Load: 32.4 t ADT: 19
CHESTNUT STREET
FairOver: WOODBRIDGE ID MAIN CANAL
NORTH OF W TURNER ROAD, San Joaquin, CA
Built 1989 Load: 32.4 t ADT: 7,617
FEATHER RIVER DR
FairOver: FOURTEEN MILE SLOUGH
1.0 MI N OF MARCH LANE, San Joaquin, CA
Built 1992 Load: 32.4 t ADT: 8,300
JACK TONE ROAD
FairOver: N FK S LITTLEJOHNS CREEK
0.4 MI N/O E VERDON RD, San Joaquin, CA
Built 2004 Load: 32.4 t ADT: 3,684
QUANTAS LANE
FairOver: WEBER CREEK S BRANCH
W OF RTE 99, S OF AIRPORT, San Joaquin, CA
Built 2001 Load: 32.4 t ADT: 4,000
HOLMAN ROAD
FairOver: MOSHER SLOUGH
N OF MORADA LANE, San Joaquin, CA
Built 2006 Load: 32.4 t ADT: 8,000
BETHANY ROAD
FairOver: W. SIDE IRRIGATION CANAL
0.6 MI EAST OF BYRON ROAD, San Joaquin, CA
Built 2005 Load: 32.4 t ADT: 271
MORADA LANE
FairOver: MOSHER SLOUGH
1 MILE W OF ROUTE 99, San Joaquin, CA
Built 2007 Load: 32.4 t ADT: 13,800
Showing 13,951-14,000 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.