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
PASEO RD
FairOver: SUTTER-BUTTE CANAL
0.8 MI EAST OF ST RTE 99, Sutter, CA
Built 1940 Load: 24.3 t ADT: 75
ENCINAL RD
FairOver: LIVE OAK SLOUGH
0.2 MI W OF LARKIN RD, Sutter, CA
Built 1955 Load: 24.3 t ADT: 335
BOGUE RD
FairOver: SUTTER CO EXTENSION CNL
0.5 MI W TOWNSHIP RD, Sutter, CA
Built 1950 Load: 24.3 t ADT: 509
LARKIN RD
FairOver: SUTTER-BUTTE CANAL
0.7 MI S/O PASEO RD, Sutter, CA
Built 1964 Load: 24.3 t ADT: 1,405
STATE ROUTE 36
FairOver: SEVEN MILE CREEK
02-TEH-036-48.60, Tehama, CA
Built 1933 Load: 24.3 t ADT: 2,025
INTERSTATE 5 NB
FairOver: GAY CREEK
02-TEH-005-R0.11, Tehama, CA
Built 1966 Load: 24.3 t ADT: 12,300
GYLE ROAD
FairOver: MC CLURE CREEK
3.8 MI E OF I-5, Tehama, CA
Built 1965 Load: 24.3 t ADT: 645
FORWARD ROAD
FairOver: CROSS COUNTRY DITCH
0.2 MI E MANTON RD, Tehama, CA
Built 1967 Load: 24.3 t ADT: 496
RAWSON ROAD
FairOver: TRUCKEE CREEK
1.1 MI N OF GYLE RD, Tehama, CA
Built 1962 Load: 24.3 t ADT: 223
OLD HWY 99 W
FairOver: SOUR GRASS CREEK
2.5 MI N GLENN CO LINE, Tehama, CA
Built 1914 Load: 24.3 t ADT: 1,922
OLD HWY 99 W
FairOver: RICE CREEK
4.2 MI N GLENN CO LINE, Tehama, CA
Built 1914 Load: 24.3 t ADT: 2,799
BOWMAN RD
FairOver: ADAMS CREEK
1.0 MI WEST OF I-5, Tehama, CA
Built 1970 Load: 24.3 t ADT: 4,172
NEWVILLE RD
FairOver: ORLAND IRRIGATION CANAL
GLENN COUNTY LINE EAST, Tehama, CA
Built 1960 Load: 24.3 t ADT: 900
CORNING ROAD
FairOver: THOMES CREEK BRANCH
0.7 MI E PASKENTA RD, Tehama, CA
Built 1950 Load: 24.3 t ADT: 1,640
RAWSON RD
FairOver: MCCLURE CREEK
0.6 MI N OF GYLE RD, Tehama, CA
Built 1964 Load: 24.3 t ADT: 216
GALLAGHER AVE
FairOver: CORNING CANAL
0.5 MI E RAWSON RD, Tehama, CA
Built 1964 Load: 24.3 t ADT: 200
LOWREY ROAD
FairOver: MIDDLE FORK ELDER CREEK
9.95 MI N PASKENTA ROAD, Tehama, CA
Built 1942 Load: 24.3 t ADT: 500
SHERWOOD BLVD
FairOver: LOS MOLINOS CREEK
0.2 MI N TEHAMA VINA RD, Tehama, CA
Built 1970 Load: 24.3 t ADT: 970
MERRILL ROAD
FairOver: MERRILL SLOUGH
WEST OF WISCONSIN AVE, Tehama, CA
Built 1962 Load: 24.3 t ADT: 90
RAWSON RD
FairOver: JACKSON CREEK
1 MI SOUTH OF CHARD AVE, Tehama, CA
Built 1957 Load: 24.3 t ADT: 252
PETTYJOHN RD
FairOver: SOUTH FORK GUYRE CREEK
4.2 MI W OF VESTAL RD, Tehama, CA
Built 1965 Load: 24.3 t ADT: 40
LORENZ STREET
FairOver: MIDDLE WEAVER CREEK
100 FT S OF SR 299, Trinity, CA
Built 1950 Load: 24.3 t ADT: 125
RUTH-ZENIA ROAD
FairOver: VAN DUZEN RIVER
HETTENSHAW ROAD, Trinity, CA
Built 1960 Load: 24.3 t ADT: 88
STATE ROUTE 99 NB
FairOver: CROSS CREEK
06-TUL-099-44.62, Tulare, CA
Built 1916 Load: 24.3 t ADT: 24,500
S99-J ST&J ST-N99
FairOver: CAMERON CREEK
06-TUL-099-32.90, Tulare, CA
Built 1928 Load: 24.3 t ADT: 41,500
STATE ROUTE 99 SB
FairOver: SOUTH BRANCH TULE RIVER
06-TUL-099-21.43, Tulare, CA
Built 1931 Load: 24.3 t ADT: 21,500
STATE ROUTE 201
FairOver: TRAVER CANAL
06-TUL-201-4.44, Tulare, CA
Built 1929 Load: 24.3 t ADT: 5,400
STATE ROUTE 137
FairOver: EAST BRANCH BIG CANAL
06-TUL-137-0.53, Tulare, CA
Built 1920 Load: 24.3 t ADT: 4,200
STATE ROUTE 99
FairOver: PORTER SLOUGH
06-TUL-099-23.21, Tulare, CA
Built 1931 Load: 24.3 t ADT: 43,000
STATE ROUTE 99
FairOver: TULE RIVER OVERFLOW
06-TUL-099-22.23, Tulare, CA
Built 1931 Load: 24.3 t ADT: 43,000
K ST
FairOver: TULARE IRRIG DIST CANAL
AT PAIGE AVE, Tulare, CA
Built 1931 Load: 24.3 t ADT: 6,100
AVE 184
FairOver: ELK BAYOU
0.6 MI WEST OF ROAD 96, Tulare, CA
Built 1965 Load: 24.3 t ADT: 530
ROAD 192
FairOver: PORTER SLOUGH
0.5 MI S OF AVE 184, Tulare, CA
Built 1966 Load: 24.3 t ADT: 1,300
ROAD 96(PRATT ST)
FairOver: ELK BAYOU
0.1 MI N/O AVE 184, Tulare, CA
Built 1954 Load: 24.3 t ADT: 800
ROAD 140
FairOver: PACKWOOD CREEK
0.3 MI NORTH OF AVE 288, Tulare, CA
Built 1970 Load: 24.3 t ADT: 3,525
AVE 256
FairOver: TULARE IRRIG DIST CANAL
0.3 MI WEST ROAD 132, Tulare, CA
Built 1966 Load: 24.3 t ADT: 750
RD 164 (FRMSVL BL)
FairOver: DEEP CREEK
0.15 MI S OF AVE 280, Tulare, CA
Built 1956 Load: 24.3 t ADT: 4,088
ROAD 68
FairOver: MILL CREEK
0.6 MI N OF AVE 280, Tulare, CA
Built 1953 Load: 24.3 t ADT: 510
AVE 280
FairOver: MILL CREEK
0.6 MI W OF RD 68, Tulare, CA
Built 1953 Load: 24.3 t ADT: 940
AVE 280
FairOver: PACKWOOD CREEK
0.7 MI E OF SR 63, Tulare, CA
Built 1953 Load: 24.3 t ADT: 3,500
ROAD 196
FairOver: KETCHUM DI
3.25 MI N OF SR 198, Tulare, CA
Built 1950 Load: 24.3 t ADT: 1,150
VILLA ST
FairOver: PORTER SLOUGH
CITY OF PORTERVILLE, Tulare, CA
Built 1930 Load: 24.3 t ADT: 3,800
ROAD 16
FairOver: TULE RIVER
0.5 MI N OF AVENUE 132, Tulare, CA
Built 1955 Load: 24.3 t ADT: 425
ROAD 32
FairOver: BRANCH OF HOMELAND CANAL
1.0 MI N OF AVE 72, Tulare, CA
Built 1954 Load: 24.3 t ADT: 50
ROAD 202
FairOver: PORTER SLOUGH
0.13 MI S OF AVE 176, Tulare, CA
Built 1953 Load: 24.3 t ADT: 50
ROAD D76 (CAMP DR)
FairOver: MILL CREEK DITCH
0.4 MI SE OF AVE 304, Tulare, CA
Built 1950 Load: 24.3 t ADT: 100
CRENSHAW RD
FairOver: MILL CREEK
0.25 MI N OF SR 198, Tulare, CA
Built 1953 Load: 24.3 t ADT: 575
AVENUE 336
FairOver: WUTCHUMNA DITCH
ROAD 196, Tulare, CA
Built 1950 Load: 24.3 t ADT: 1,420
AVE 260
FairOver: PACKWOOD CREEK
0.2 MI E OF RD 64, Tulare, CA
Built 1952 Load: 24.3 t ADT: 250
AVE 256
FairOver: BRANCH OF PACKWOOD CREEK
0.3 MI E OF RD 56, Tulare, CA
Built 1952 Load: 24.3 t ADT: 175
Showing 10,601-10,650 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.