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
PEDESTRIAN WALKWAY
UnknownOver: BOSWORTH STREET
1000 FT WEST OF S JOSE AV, San Francisco, CA
Built 1965 ADT: 22,315
PEDESTRIAN WALKWAY
UnknownOver: CESAR CHAVEZ ST
OVER ARMY STREET, San Francisco, CA
Built 1972 ADT: 63,120
POTRERO AVE
UnknownOver: CESAR CHAVEZ ST
OVER CESAR CHAVEZ ST, San Francisco, CA
Built 1974 ADT: 30,960
PEDESTRIAN WALKWAY
UnknownOver: MARKET STREET
OVER MARKET ST, San Francisco, CA
Built 1958 ADT: 27,000
PEDESTRIAN WALKWAY
UnknownOver: MARKET STREET
OVER MARKET STREET, San Francisco, CA
Built 1958 ADT: 25,989
HYDE ST
UnknownOver: BROADWAY
OVER BROADWAY, San Francisco, CA
Built 1952 ADT: 50,000
PEDESTRIAN WALKWAY
UnknownOver: PORTOLA DRIVE
JUST W/O KENSINGTON WY, San Francisco, CA
Built 1971 ADT: 25,989
FILLMORE ST
UnknownOver: GEARY BLVD
OVER GEARY BLVD, San Francisco, CA
Built 1961 ADT: 41,040
PEDESTRIAN WALKWAY
UnknownOver: GEARY BLVD
OVER GEARY BLVD, San Francisco, CA
Built 1966 ADT: 52,440
CALTRAIN & UP RR
UnknownOver: JERROLD AVENUE
JUST E/O RANKIN ST, San Francisco, CA
Built 1907 ADT: 7,320
CALTRAIN & UP RR
UnknownOver: EVANS AVENUE
EVANS AVE NEAR I-280, San Francisco, CA
Built 1964 ADT: 15,840
HARRISON STREET
UnknownOver: BEALE STREET
OVER BEAGLE ST, San Francisco, CA
Built 1936 ADT: 10,000
PEDESTRIAN WALKWAY
UnknownOver: WASHINGTON ST
OVER WASHINGTON ST, San Francisco, CA
Built 1967 ADT: 7,320
PEDESTRIAN WALKWAY
UnknownOver: WASHINGTON ST
OVER WASHINGTON ST, San Francisco, CA
Built 1967 ADT: 7,320
LINCOLN WAY
UnknownOver: SUNSET BLVD
OVER SUNSET BLVD, San Francisco, CA
Built 1931 ADT: 13,680
PEDESTRIAN WALKWAY
UnknownOver: BROTHERHOOD WY
500 FT W/O JUNIPERO SERRA, San Francisco, CA
Built 1960 ADT: 10,000
PEDESTRIAN WALKWAY
UnknownOver: OCEAN AVE
800 FT W/O I-280, San Francisco, CA
Built 1977 ADT: 10,000
PEDESTRIAN WALKWAY
UnknownOver: CLARENDON AVE
0.1 MI N OLYMPIA ON CL A, San Francisco, CA
Built 1962 ADT: 8,000
PEDESTRIAN WALKWAY
UnknownOver: CESAR CHAVEZ ST RAMP
JUST SOUTH OF POTRERO AVE, San Francisco, CA
Built 1971 ADT: 20,729
PEDESTRIAN WALKWAY
UnknownOver: GILMAN AVE
0.1 MI NW GIL AVE GRIF S, San Francisco, CA
Built 1970 ADT: 10,000
TREASURE ISD RD NB
UnknownOver: TREASURE ISD RD SB
NB TI RD TO 80 WB ON RAMP, San Francisco, CA
Built 1964 ADT: 1,500
TREASURE ISD RD SB
UnknownOver: SIDEHILL, TI RD NB
JNO SHV #1/ JSO SHV #7A, San Francisco, CA
Built 1964 ADT: 1,500
TERMINAL BUS RAMP
UnknownOver: HOWARD STREET
JSO TERMINAL BUILDING, San Francisco, CA
Built 2018 ADT: 20,000
TRANSIT BUS RAMP
UnknownOver: HARRISON STREET
TO I80 EAST, San Francisco, CA
Built 2018 ADT: 20,000
TRANSIT BUS RAMP
UnknownOver: HARRISON STREET
RETURN TO TRANSIT CENTER, San Francisco, CA
Built 2018 ADT: 20,000
BUS STORAGE RAMP
UnknownOver: SECOND STREET
NE OF THIRD STREET, San Francisco, CA
Built 2018 ADT: 20,000
PATTERSON PASS RD
UnknownOver: ROUTE 580
10-SJ-580-13.54, San Joaquin, CA
Built 1967 ADT: 26,600
INTERSTATE 5 SB
UnknownOver: PARADISE CUT UC
10-SJ-005-R13.87, San Joaquin, CA
Built 1971 ADT: 500
INTERSTATE 5 NB
UnknownOver: PARADISE CUT UC
10-SJ-005-R13.87, San Joaquin, CA
Built 1971 ADT: 980
INTERSTATE 5 SB
UnknownOver: LOUISE AVE
10-SJ-005-R16.47, San Joaquin, CA
Built 1971 ADT: 600
INTERSTATE 5 NB
UnknownOver: LOUISE AVE
10-SJ-005-R16.47, San Joaquin, CA
Built 1971 ADT: 1,540
STE RR
UnknownOver: STATE ROUTE 99
10-SJ-099-19.73, San Joaquin, CA
Built 1961 ADT: 83,000
ACACIA AVENUE POC
UnknownOver: STATE ROUTE 99
10-SJ-099-1.31-RIP, San Joaquin, CA
Built 1967 ADT: 107,000
INTERSTATE 205 WB
UnknownOver: UP RR & BYRON RD
10-SJ-205-R4.54, San Joaquin, CA
Built 1970 ADT: 4,310
INTERSTATE 205 EB
UnknownOver: UP RR & BYRON RD
10-SJ-205-R4.54, San Joaquin, CA
Built 1970 ADT: 4,310
CORRAL HOLLOW RD
UnknownOver: ROUTE 580
10-SJ-580-8.15, San Joaquin, CA
Built 1966 ADT: 26,600
TRACY BLVD
UnknownOver: ROUTE 580
10-SJ-580-6.57, San Joaquin, CA
Built 1966 ADT: 32,000
FRONTAGE ROAD
UnknownOver: STATE ROUTE 99
10-SJ-099-21.91, San Joaquin, CA
Built 1964 ADT: 64,000
MORADA LANE
UnknownOver: STATE ROUTE 99
10-SJ-099-24.03, San Joaquin, CA
Built 1964 ADT: 64,000
EIGHT MILE RD
UnknownOver: STATE ROUTE 99
10-SJ-099-25.42, San Joaquin, CA
Built 1964 ADT: 64,000
ARMSTRONG RD
UnknownOver: STATE ROUTE 99
10-SJ-099-27.50, San Joaquin, CA
Built 1964 ADT: 60,500
HARNEY LANE
UnknownOver: STATE ROUTE 99
10-SJ-099-28.48, San Joaquin, CA
Built 1964 ADT: 60,500
WILSON WY-N99 ONRP
UnknownOver: STATE ROUTE 99 SB
10-SJ-099-21.67, San Joaquin, CA
Built 1949 ADT: 44,000
CCT RR
UnknownOver: STATE ROUTE 99
10-SJ-099-21.56, San Joaquin, CA
Built 1949 ADT: 71,000
STATE ROUTE 99
UnknownOver: STATE ROUTE 120
10-SJ-099-6.65-MTCA, San Joaquin, CA
Built 2007 ADT: 14,100
AUSTIN ROAD
UnknownOver: STATE ROUTE 99
10-SJ-099-4.89, San Joaquin, CA
Built 1954 ADT: 107,000
INTERSTATE 205
UnknownOver: CORRAL HOLLOW RD
10-SJ-205-R5.94, San Joaquin, CA
Built 1970 ADT: 18,584
INTERSTATE 205
UnknownOver: CORRAL HOLLOW RD
10-SJ-205-R5.94, San Joaquin, CA
Built 1970 ADT: 18,584
COTTAGE AVE
UnknownOver: STATE ROUTE 99
10-SJ-099-7.46-MTCA, San Joaquin, CA
Built 1955 ADT: 92,500
JAHANT RD
UnknownOver: STATE ROUTE 99
10-SJ-099-35.60, San Joaquin, CA
Built 1957 ADT: 59,000
Showing 5,951-6,000 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.