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
SILVERADO TRAIL
FairOver: DUTCH HENRY CREEK
.4 MI N/O LARKMEAD LANE, Napa, CA
Built 1938 Load: 16.2 t ADT: 4,310
OAK KNOLL AVE
FairOver: NAPA RIVER OVERFLOW
300' W SILVERADO TRAIL, Napa, CA
Built 1910 Load: 16.2 t ADT: 2,600
POPE ST
FairOver: NAPA RIVER
SILVERADO TRAIL, Napa, CA
Built 1894 Load: 16.2 t ADT: 2,790
POPE ST
FairOver: SULPHUR CREEK
0.25 MI N/W SR 29, Napa, CA
Built 1908 Load: 16.2 t ADT: 2,790
SPRING MOUNTAIN RD
FairOver: YORK CREEK
0.3 MI WEST OF MADRONA ST, Napa, CA
Built 1903 Load: 16.2 t ADT: 1,500
E JIBBOOM ST
FairOver: TROUT CREEK
JUST E/O BRIDGE ST, Nevada, CA
Built 1940 Load: 16.2 t ADT: 2,600
STATE ROUTE 74
FairOver: SAN JUAN CANYON
12-ORA-074-13.29-SJCP, Orange, CA
Built 1929 Load: 16.2 t ADT: 9,800
EDGEWOOD RD
FairOver: WISE CANAL
0.2 MI W SH 49, Placer, CA
Built 1930 Load: 16.2 t ADT: 2,413
HAINES RD
FairOver: SOUTH FORK DRY CREEK
JUST S DRY CREEK RD, Placer, CA
Built 1930 Load: 16.2 t ADT: 1,269
GOPHER HILL LDFL R
FairOver: SPANISH CREEK
200FT N/O BUCKS LAKE RD, Plumas, CA
Built 1969 Load: 16.2 t ADT: 120
SUTTER SLU BR RD
FairOver: SUTTER SLOUGH
SAC RIV ACROSS COURTLAND, Sacramento, CA
Built 1939 Load: 16.2 t ADT: 1,913
HERNANDO RD
FairOver: CHICKEN RANCH SLOUGH
200' W/O GWEN RD, Sacramento, CA
Built 1940 Load: 16.2 t ADT: 2,300
MISSION VINYARD RD
FairOver: SAN JUAN CREEK
SOUTH OF SH 156, San Benito, CA
Built 1940 Load: 16.2 t ADT: 500
NAT TRAILS HWY
FairOver: WORKMAN WASH
0.5 MI N/O RTE 40, San Bernardino, CA
Built 1890 Load: 16.2 t ADT: 146
E BROADWAY
FairOver: NEEDLES FLOOD CONTROL CH
0.45 MI N/O RTE 40, San Bernardino, CA
Built 1941 Load: 16.2 t ADT: 5,141
CARNELIAN STREET
FairOver: REDHILL PARK RESV CHAN
0.4 MI N OF RTE 66, San Bernardino, CA
Built 1936 Load: 16.2 t ADT: 20,613
PARKER DAM RD
FairOver: COPPER BASIN WASH
5.7 MI S/O PARKER DAM, San Bernardino, CA
Built 1940 Load: 16.2 t ADT: 1,500
FOOTHILL BLVD
FairOver: CUCAMONGA OVERFLOW
JUST E/O HOSPITAL PKWY, San Bernardino, CA
Built 1914 Load: 16.2 t ADT: 31,500
GIRD RD
FairOver: LIVE OAK CANYON
1.7MI N/O ROUTE 76, San Diego, CA
Built 1940 Load: 16.2 t ADT: 3,259
NOAKES ST
FairOver: HARBISON CYN CREEK
140 FT E/O HARBISON CYN, San Diego, CA
Built 1944 Load: 16.2 t ADT: 220
KEARNY VILLA RD
FairOver: LINDA VISTA WASH
1.7MI N/O SR 163, San Diego, CA
Built 1948 Load: 16.2 t ADT: 19,332
PAMO ROAD
FairOver: SANTA YSABEL CREEK
3.85 MI N/O HAVERFORD RD., San Diego, CA
Built 1920 Load: 16.2 t ADT: 114
GAWNE ROAD
FairOver: DRAIN B
0.3 MI E NELSON RD, San Joaquin, CA
Built 1935 Load: 16.2 t ADT: 709
MESSICK ROAD
FairOver: MOSHER SLOUGH
0.6 MI W OF CLEMENTS RD, San Joaquin, CA
Built 1931 Load: 16.2 t ADT: 150
HENRY RD
FairOver: SSJID CANAL
AT N INTERSECT W RIVER RD, San Joaquin, CA
Built 1945 Load: 16.2 t ADT: 2,375
VAN ALLEN RD
FairOver: SSJID CANAL
0.2 MI N OF RIVER RD, San Joaquin, CA
Built 1928 Load: 16.2 t ADT: 240
CARROLTON ROAD
FairOver: SSJID CANAL
0.2 MI N OF RIVER RD, San Joaquin, CA
Built 1940 Load: 16.2 t ADT: 545
STATE ROUTE 84
FairOver: WEST UNION CREEK
04-SM-084-19.89-WDS, San Mateo, CA
Built 1903 Load: 16.2 t ADT: 6,600
STATE ROUTE 82
FairOver: BELMONT CREEK
04-SM-082-7.36-SM, San Mateo, CA
Built 1941 Load: 16.2 t ADT: 34,750
BEAN HOLLOW ROAD
FairOver: ARROYO DE LOS FRIJOLES
0.2 MI NORTH OF S.H. 1, San Mateo, CA
Built 1922 Load: 16.2 t ADT: 175
INDUSTRIAL BLVD
FairOver: CORDILLERAS CREEK
NORTH OF 'G' ST, San Mateo, CA
Built 1930 Load: 16.2 t ADT: 8,612
ODDSTAD BLVD
FairOver: SOUTH FORK SAN PEDRO CRK
0.1 MI N LINDA MAR BLVD, San Mateo, CA
Built 1948 Load: 16.2 t ADT: 6,886
MIDDLEFIELD RD
FairOver: SAN FRANCISQUITO CREEK
0.1 MI E WILLOW RD, San Mateo, CA
Built 1936 Load: 16.2 t ADT: 18,700
DRAKE AVE
FairOver: EASTON CREEK
EAST OF EASTON DRIVE, San Mateo, CA
Built 1930 Load: 16.2 t ADT: 100
ACCESS ROAD
FairOver: SAN BRUNO CHANNEL
NORTH OF NORTH ACCESS RD, San Mateo, CA
Built 1948 Load: 16.2 t ADT: 8,252
STONEHEDGE ROAD
FairOver: SAN MATEO CREEK
500 FT N OF BRIDGE RD, San Mateo, CA
Built 1900 Load: 16.2 t ADT: 1,000
BAYWOOD DRIVE
FairOver: SAN MATEO CREEK
BRIDGE RD, San Mateo, CA
Built 1900 Load: 16.2 t ADT: 1,000
SAN LEANDRO LN
FairOver: SAN YSIDRO CREEK
0.3 MI E OF SANTA ROSA LN, Santa Barbara, CA
Built 1940 Load: 16.2 t ADT: 2,110
E MASON STREET
FairOver: SYCAMORE CANYON CREEK
0.6 MI N JCT. W/ RTE. 101, Santa Barbara, CA
Built 1946 Load: 16.2 t ADT: 6,000
STATE ROUTE 9
FairOver: SARATOGA CREEK
04-SCL-009-4.85, Santa Clara, CA
Built 1902 Load: 16.2 t ADT: 2,450
MC KEAN ROAD
FairOver: ARROYO CALERO
NEAR CALERO RESERVOIR, Santa Clara, CA
Built 1916 Load: 16.2 t ADT: 3,760
SAN FERNANDO ST
FairOver: LOS GATOS CREEK
WEST OF HWY 87, Santa Clara, CA
Built 1920 Load: 16.2 t ADT: 8,270
POMEROY AVE
FairOver: CALABAZAS CREEK
AT CALABAZAS BLVD, Santa Clara, CA
Built 1940 Load: 16.2 t ADT: 5,000
ALMADEN EXPWY
FairOver: RANDOL CREEK
300 FT N/O VIA VALIENTE, Santa Clara, CA
Built 1948 Load: 16.2 t ADT: 25,850
REDWOOD RETREAT RD
FairOver: LITTLE ARTHUR CREEK
0.3 MI W WATSONVILLE RD, Santa Clara, CA
Built 1909 Load: 16.2 t ADT: 400
EL CAMINO REAL
FairOver: LAGUNA SECA CREEK
0.4 MI SE/O METCALF RD, Santa Clara, CA
Built 1935 Load: 16.2 t ADT: 21,050
MATADERO RD
FairOver: MATADERO CREEK
TIPPAWINGO & JOSINA AVE, Santa Clara, CA
Built 1929 Load: 16.2 t ADT: 3,000
SOQUEL DR
FairOver: RODEO GULCH
0.7 MI W PORTER ST, Santa Cruz, CA
Built 1937 Load: 16.2 t ADT: 18,900
VARNI ROAD
FairOver: LOS CORRALITOS CREEK
0.3 MI W OF AMESTI RD, Santa Cruz, CA
Built 1936 Load: 16.2 t ADT: 500
HIHN'S MILL RD
FairOver: SOQUEL CREEK
WEST OF HIGHLAND WAY, Santa Cruz, CA
Built 1954 Load: 16.2 t ADT: 50
Showing 8,501-8,550 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.