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
E MICHIGAN AVE
FairOver: HERNDON CANAL
WEST OF MILLBROOK AVE, Fresno, CA
Built 1954 Load: 16.2 t ADT: 2,121
N ROOSEVELT AVE
FairOver: DRY CREEK CANAL
SOUTH OF FRANKLIN AVE, Fresno, CA
Built 1935 Load: 16.2 t ADT: 367
E LINCOLN AVE
FairOver: SMITH-FERRY CANAL
AT (JEO) NEWMARK AVE, Fresno, CA
Built 1925 Load: 16.2 t ADT: 300
E. KINGS CANYON RD
FairOver: FANCHER CREEK CANAL
0.25 MI WEST OF CLOVIS AV, Fresno, CA
Built 1910 Load: 16.2 t ADT: 12,102
COUNTY RD P
FairOver: GLENN-COLUSA CANAL
2.1 MI N OF S.H. 162, Glenn, CA
Built 1940 Load: 16.2 t ADT: 381
ROAD 35
FairOver: WHITE CABIN CREEK
0.6 MI W/O ROAD 'D', Glenn, CA
Built 1925 Load: 16.2 t ADT: 185
ROAD 'F'
FairOver: BRANCH WALKER CREEK
0.5 MI N/O ROAD 28, Glenn, CA
Built 1928 Load: 16.2 t ADT: 65
ROAD #60
FairOver: BRANCH LOGAN CREEK
1.3 MI E OF 99W, Glenn, CA
Built 1930 Load: 16.2 t ADT: 1,100
ROAD 48
FairOver: PRINCETON-CODORA CANAL
JUST W HWY 45, Glenn, CA
Built 1941 Load: 16.2 t ADT: 166
ROAD 34
FairOver: PRINCETON CODORA CANAL
WEST OF ROAD X, Glenn, CA
Built 1935 Load: 16.2 t ADT: 95
COUNTY RD 306
FairOver: SALT CREEK
2.64 MI N COLUSA CO LINE, Glenn, CA
Built 1930 Load: 16.2 t ADT: 223
CO RD #99 W
FairOver: WILLOW CREEK
0.7 MI N OF CO RD #48, Glenn, CA
Built 1915 Load: 16.2 t ADT: 2,678
ROAD 99 W
FairOver: LOGAN CREEK
1.2 MI N OF ROAD 68, Glenn, CA
Built 1914 Load: 16.2 t ADT: 447
COUNTY RD 306
FairOver: CORBIN CREEK
17.64 MI N CO LINE, Glenn, CA
Built 1940 Load: 16.2 t ADT: 563
ROAD 32
FairOver: PRINCETON-CODORA CANAL
0.3 MI W RD X, Glenn, CA
Built 1945 Load: 16.2 t ADT: 316
ROAD 'V'
FairOver: C.I.C. DRAIN
0.2 MI S CUTLER AVE, Glenn, CA
Built 1940 Load: 16.2 t ADT: 208
ROAD 'W'
FairOver: C.I.C. DRAIN
0.1 MI S CAPAY AVE, Glenn, CA
Built 1940 Load: 16.2 t ADT: 57
COUNTY ROAD 303
FairOver: STONY CREEK
JUST EAST OF RD 306, Glenn, CA
Built 1981 Load: 16.2 t ADT: 25
BRICELAND RD
FairOver: REDWOOD CREEK
10 MI E SHELTER COVE RD, Humboldt, CA
Built 1935 Load: 16.2 t ADT: 1,836
MAPLE CREEK ROAD
FairOver: BOULDER CREEK
1/4 MI E BUTLER VLY RD, Humboldt, CA
Built 1923 Load: 16.2 t ADT: 106
ALDERPOINT RD
FairOver: MARTIN CREEK
6.7 MI SOUTH BRIDGEVILLE, Humboldt, CA
Built 1972 Load: 16.2 t ADT: 124
JACK SHAW ROAD
FairOver: BILLINGS CREEK
1.3 MI E MOUNTAIN VIEW, Humboldt, CA
Built 1987 Load: 16.2 t ADT: 50
12TH ST
FairOver: ROHNER CREEK
0.1 MILE NORTH NEWBURG RD, Humboldt, CA
Built 1935 Load: 16.2 t ADT: 3,160
STATE ROUTE 99
FairOver: LERDO CANAL
06-KER-099-37.22, Kern, CA
Built 1913 Load: 16.2 t ADT: 90,000
STATE ROUTE 33
FairOver: WASP WASH
06-KER-033-37.89, Kern, CA
Built 1940 Load: 16.2 t ADT: 1,400
STATE ROUTE 119
FairOver: BUENA VISTA SLOUGH
06-KER-119-14.98, Kern, CA
Built 1931 Load: 16.2 t ADT: 10,400
34TH STREET
FairOver: EAST SIDE CANAL
WEST OF UNION AVE, Kern, CA
Built 1935 Load: 16.2 t ADT: 10,689
KING,BAKER,KERN ST
FairOver: EAST SIDE CANAL
AT LAKE STREET, Kern, CA
Built 1940 Load: 16.2 t ADT: 3,877
CHESTER AVE
FairOver: LEVEE CANAL
NORTH OF 42ND ST, Kern, CA
Built 1930 Load: 16.2 t ADT: 15,625
4TH STREET
FairOver: KERN ISLAND CANAL
0.3 MI W OF UNION AVE, Kern, CA
Built 1940 Load: 16.2 t ADT: 4,402
8TH STREET
FairOver: KERN ISLAND CANAL
EAST OF 'R' ST, Kern, CA
Built 1936 Load: 16.2 t ADT: 7,541
ALTA VISTA DR
FairOver: EAST SIDE CANAL
SOUTH OF MONTEREY ST, Kern, CA
Built 1947 Load: 16.2 t ADT: 3,600
N STREET
FairOver: KERN ISLAND CANAL
150 FT N OF BRUNDAGE LN, Kern, CA
Built 1948 Load: 16.2 t ADT: 4,794
BRUNDAGE LANE
FairOver: KERN ISLAND CNL CNTRL BR
0.1 MI E/O 'P' STREET, Kern, CA
Built 1915 Load: 16.2 t ADT: 4,016
BRUNDAGE LANE
FairOver: KERN ISLAND CANAL
WEST OF 'N' STREET, Kern, CA
Built 1915 Load: 16.2 t ADT: 4,016
WHITLEY AVE
FairOver: SWEET CANAL
0.8 MI W TULARE CO LINE, Kings, CA
Built 1918 Load: 16.2 t ADT: 2,060
GRANGEVILLE BL
FairOver: LAST CHANCE DITCH
0.5 MI E OF 15TH AVE, Kings, CA
Built 1957 Load: 16.2 t ADT: 5,800
EXCELSIOR AVE
FairOver: SOUTH FORK PEOPLES DITCH
JUST E/O 7TH AVE, Kings, CA
Built 1918 Load: 16.2 t ADT: 670
18TH AVE
FairOver: W BR LEMOORE CANAL
0.4 MI N IDAHO AVE, Kings, CA
Built 1940 Load: 16.2 t ADT: 2,500
18TH AVE
FairOver: LEMOORE CANAL
N/O JACKSON AVE, Kings, CA
Built 1940 Load: 16.2 t ADT: 6,960
LAUREL AVE
FairOver: STRATFORD CANAL
0.65 MI E SR 41, Kings, CA
Built 1959 Load: 16.2 t ADT: 818
IDAHO AVE
FairOver: LEMOORE CANAL
0.5 MI E 18TH AVE, Kings, CA
Built 1940 Load: 16.2 t ADT: 641
CR527 (ASH VALLEY)
FairOver: NO NAME CREEK
3 MI W OF SPOONER ROAD, Lassen, CA
Built 1990 Load: 16.2 t ADT: 160
NEOPOLITAN LN E
FairOver: RIVO ALTO CANAL
400FT S/O THE TOLEDO E, Los Angeles, CA
Built 1968 Load: 16.2 t ADT: 612
SAINT ESTABAN ST
FairOver: HAINES CANYON CHANNEL
AT COMMERCE AVE, Los Angeles, CA
Built 1938 Load: 16.2 t ADT: 497
MCVINE AVENUE
FairOver: HAINES CANYON CHANNEL
100 FT S/O FOOTHILL BLVD, Los Angeles, CA
Built 1936 Load: 16.2 t ADT: 1,925
ROSCOE BLVD
FairOver: CHATSWORTH CREEK
0.2 M E/O WOODLAKE AVE, Los Angeles, CA
Built 1927 Load: 16.2 t ADT: 14,036
PRAIRIE AVE
FairOver: MOBIL OIL CO ACCESS RD
0.2MI S/O 190TH ST, Los Angeles, CA
Built 1975 Load: 16.2 t ADT: 52,000
MT GLEASON AVENUE
FairOver: HAINES CANYON CHANNEL
VALMONT STREET, Los Angeles, CA
Built 1936 Load: 16.2 t ADT: 1,674
HAINES CANYON AVE
FairOver: HAINES CANYON CHANNEL
0.2 MI N/O APPERSON ST, Los Angeles, CA
Built 1937 Load: 16.2 t ADT: 1,885
Showing 8,401-8,450 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.