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 273
GoodOver: SPRING GULCH
02-SHA-273-7.10, Shasta, CA
Built 1914 Load: 24.6 t ADT: 9,800
INTERSTATE 505 SB
GoodOver: SWEENEY CREEK
04-SOL-505-R5.20, Solano, CA
Built 1946 Load: 24.6 t ADT: 12,000
INDIAN VALLEY
GoodOver: BUTTER CREEK
NO DATA ENTERED, Trinity, CA
Built 1965 Load: 24.6 t ADT: 50
STATE ROUTE 99 SB
GoodOver: AVENUE 76
06-TUL-099-9.71, Tulare, CA
Built 1956 Load: 24.6 t ADT: 20,500
STATE ROUTE 99 NB
GoodOver: AVENUE 76
06-TUL-099-9.71, Tulare, CA
Built 1956 Load: 24.6 t ADT: 20,500
D 60
GoodOver: CROSS CREEK
1.15 MI S OF AVE 352, Tulare, CA
Built 1962 Load: 24.6 t ADT: 225
RD 136 (PINKHAM)
GoodOver: PACKWOOD CREEK
RD 136 @ WALNUT AVE (288), Tulare, CA
Built 1970 Load: 24.6 t ADT: 875
STATE ROUTE 33
GoodOver: SHELDON CANYON
07-VEN-033-14.58, Ventura, CA
Built 1953 Load: 24.6 t ADT: 1,150
MINES RD
GoodOver: ARROYO MOCHO
4.8 MI S/E TESLA RD, Alameda, CA
Built 1988 Load: 24.9 t ADT: 1,930
TOLLHOUSE RD
GoodOver: DRY CREEK
1 MI N/O LODGE RD, Fresno, CA
Built 1925 Load: 24.9 t ADT: 600
STATE ROUTE 99 SB
GoodOver: BEARDSLEY CANAL
06-KER-099-R28.39, Kern, CA
Built 1964 Load: 24.9 t ADT: 55,000
STATE ROUTE 39
GoodOver: CARPENTER CANYON
07-LA-039-21.45, Los Angeles, CA
Built 1933 Load: 24.9 t ADT: 1,850
INTERSTATE 5
GoodOver: ALLEN AVENUE
07-LA-005-28.14-GNDL, Los Angeles, CA
Built 1957 Load: 24.9 t ADT: 239,010
STATE ROUTE 126
GoodOver: THE OLD ROAD
07-LA-126-R5.66, Los Angeles, CA
Built 1964 Load: 24.9 t ADT: 51,000
STATE ROUTE 1
GoodOver: ALAMEDA STREET
07-LA-001-9.05-LA, Los Angeles, CA
Built 2004 Load: 24.9 t ADT: 33,000
CLARA ST
GoodOver: LOS ANGELES RIV
0.3MI S/O FLORENCE AVE, Los Angeles, CA
Built 1939 Load: 24.9 t ADT: 16,274
SIERRA MDRE BLVD E
GoodOver: EATON WASH
0.5MI W/O SIERRA MDRE VLL, Los Angeles, CA
Built 1958 Load: 24.9 t ADT: 8,699
STATE ROUTE 162
GoodOver: GRIST CREEK
01-MEN-162-28.30, Mendocino, CA
Built 1983 Load: 24.9 t ADT: 2,200
STATE ROUTE 1
GoodOver: GARRAPATA CREEK
05-MON-001-62.97, Monterey, CA
Built 1931 Load: 24.9 t ADT: 4,300
STATE ROUTE 1
GoodOver: DOLAN CREEK
05-MON-001-31.17, Monterey, CA
Built 1961 Load: 24.9 t ADT: 2,000
ROBINSON CANYON RD
GoodOver: CARMEL RIVER
0.1 MI S CARMEL VALLEY RD, Monterey, CA
Built 1971 Load: 24.9 t ADT: 3,600
INTERSTATE 5
GoodOver: SAN JUAN CREEK
12-ORA-005-8.87-SJCP, Orange, CA
Built 1958 Load: 24.9 t ADT: 285,000
E/B ALTON PARKWAY
GoodOver: BNSF RY,AMTRAK,METROLINK
0.3 MI NE/O MUIRLAND BLVD, Orange, CA
Built 1980 Load: 24.9 t ADT: 18,200
STATE ROUTE 111 NB
GoodOver: WHITEWATER RIVER OVERFLO
08-RIV-111-R60.55-PSP, Riverside, CA
Built 1939 Load: 24.9 t ADT: 9,690
DEL PASO RD EB
GoodOver: EAST DRAINAGE CANAL
0.24MI E/O TRUXEL RD., Sacramento, CA
Built 1986 Load: 24.9 t ADT: 8,695
STATE HIGHWAY 330
GoodOver: CITY CREEK
08-SBD-330-32.51, San Bernardino, CA
Built 1947 Load: 24.9 t ADT: 11,000
MARIPOSA ROAD
GoodOver: WEBER CREEK BRANCH
0.5 MI E JACK TONE RD, San Joaquin, CA
Built 1934 Load: 24.9 t ADT: 6,626
ATASCADERO ROAD
GoodOver: EAGLE CREEK
.1 MI E OF SA. BARBARA RD, San Luis Obispo, CA
Built 2005 Load: 24.9 t ADT: 150
US HIGHWAY 101 SB
GoodOver: NOJOQUI CREEK
05-SB-101-56.00, Santa Barbara, CA
Built 1955 Load: 24.9 t ADT: 11,000
US HIGHWAY 101 NB
GoodOver: EL CAPITAN STATE BEACH
05-SB-101-33.85, Santa Barbara, CA
Built 1958 Load: 24.9 t ADT: 16,000
DAKOTA STREET
GoodOver: BRANCIFORTE CREEK
0.4 MI N SOQUEL AVE, Santa Cruz, CA
Built 1959 Load: 24.9 t ADT: 20,000
MOOSE CAMP RD
GoodOver: HATCHET CREEK
0.3 MI S OF S.R. 299, Shasta, CA
Built 1970 Load: 24.9 t ADT: 100
BRANSTETTER LANE
GoodOver: A.C.I.D. CANAL
0.1 MI W WESTSIDE RD, Shasta, CA
Built 1950 Load: 24.9 t ADT: 3,180
INTERSTATE 5 SB
GoodOver: CORP RR & EDGEWOOD RD
02-SIS-005-R25.22, Siskiyou, CA
Built 1967 Load: 24.9 t ADT: 7,400
INTERSTATE 80 EB
GoodOver: SWEENEY CREEK
04-SOL-080-32.90, Solano, CA
Built 1946 Load: 24.9 t ADT: 60,000
INTERSTATE 80 WB
GoodOver: MC CUNE CREEK
04-SOL-080-34.48, Solano, CA
Built 1946 Load: 24.9 t ADT: 81,500
INTERSTATE 80 EB
GoodOver: MC CUNE CREEK
04-SOL-080-34.48, Solano, CA
Built 1946 Load: 24.9 t ADT: 60,000
STATE ROUTE 12
GoodOver: OLIVE STREET
04-SON-012-R15.70-SRO, Sonoma, CA
Built 1964 Load: 24.9 t ADT: 36,500
STATE ROUTE 12
GoodOver: OLIVE STREET
04-SON-012-R15.70-SRO, Sonoma, CA
Built 1964 Load: 24.9 t ADT: 36,500
INTERSTATE 5 NB
GoodOver: FINK ROAD
10-STA-005-10.71, Stanislaus, CA
Built 1967 Load: 24.9 t ADT: 18,000
INTERSTATE 5 NB
GoodOver: SALADO CREEK
10-STA-005-12.68, Stanislaus, CA
Built 1967 Load: 24.9 t ADT: 18,000
STATE ROUTE 36
GoodOver: SOUTH FORK COTTONWOOD CR
02-TEH-036-R25.54, Tehama, CA
Built 1969 Load: 24.9 t ADT: 470
RIVER ROAD
GoodOver: TEHAMA-COLUSA CANAL
EAST OF WALNUT ROAD, Tehama, CA
Built 1965 Load: 24.9 t ADT: 263
ORANGEWOOD RD
GoodOver: TEHAMA-COLUSA CANAL
EAST OF WALNUT ROAD, Tehama, CA
Built 1967 Load: 24.9 t ADT: 489
INGRAM ROAD
GoodOver: TEHAMA-COLUSA CANAL
0.45 MI N CHRISTIAN RD, Tehama, CA
Built 1968 Load: 24.9 t ADT: 87
INTERSTATE 80
GoodOver: COUNTY ROAD 32
03-YOL-080-5.78, Yolo, CA
Built 1962 Load: 24.9 t ADT: 135,000
STATE ROUTE 149 NB
GoodOver: CLEAR CREEK
03-BUT-149-R3.96, Butte, CA
Built 1951 Load: 25.3 t ADT: 6,875
CO RD 99W
GoodOver: TEHAMA-COLUSA CANAL
0.5 MI NORTH OF C.R. #27, Glenn, CA
Built 1975 Load: 25.3 t ADT: 2,513
CARSON WOODS ROAD
GoodOver: ROHNER CREEK
0.3 MI N OF MAIN, Humboldt, CA
Built 1996 Load: 25.3 t ADT: 472
STATE ROUTE 111
GoodOver: WISTER WASH
11-IMP-111-47.87, Imperial, CA
Built 1950 Load: 25.3 t ADT: 3,600
Showing 18,901-18,950 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.