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
CANA HWY
FairOver: BRANCH PINE CREEK
5 MI W OF S.R 99, Butte, CA
Built 1930 Load: 16.2 t ADT: 276
COTTONWOOD RD
FairOver: DUDLEY CREEK
0.9 MI W TABLE MTN BLVD, Butte, CA
Built 1930 Load: 16.2 t ADT: 135
CENTRAL HOUSE RD
FairOver: E BRANCH WYANDOTTE CREEK
0.4 MI W PALERMO-HONCUT, Butte, CA
Built 1920 Load: 16.2 t ADT: 100
CENTRAL HOUSE RD
FairOver: DRAINAGE DITCH
0.5 MI W OF PALERMO-HONC, Butte, CA
Built 1920 Load: 16.2 t ADT: 100
COTTONWOOD RD
FairOver: COTTONWOOD CREEK
2.8 MI E/O RTE 99, Butte, CA
Built 1930 Load: 16.2 t ADT: 135
NELSON RD
FairOver: LITTLE DRY CREEK OVFLOW
1.9 MI W MIDWAY RD, Butte, CA
Built 1930 Load: 16.2 t ADT: 164
NELSON RD
FairOver: DURHAM SLOUGH
4.6 MI W MIDWAY RD, Butte, CA
Built 1938 Load: 16.2 t ADT: 88
STATE ROUTE 26
FairOver: N. FORK MOKELUMNE RIVER
10-CAL-026-38.31, Calaveras, CA
Built 1930 Load: 16.2 t ADT: 1,350
ROCK CREEK ROAD
FairOver: ROCK CREEK OVERFLOW
1.8 MI SE OF MILTON, Calaveras, CA
Built 1936 Load: 16.2 t ADT: 37
LIME CREEK RD
FairOver: YOUNGS CREEK
0.6 MI SW OF SR 12, Calaveras, CA
Built 1915 Load: 16.2 t ADT: 379
MAIN ST
FairOver: ANGELS CREEK
AT JONES ST IN MURPHYS, Calaveras, CA
Built 1909 Load: 16.2 t ADT: 2,064
DOGTOWN RD
FairOver: INDIAN CREEK
6.5 MI N/O SR 49, Calaveras, CA
Built 1930 Load: 16.2 t ADT: 65
DOGTOWN RD
FairOver: INDIAN CREEK
8.6 MI N/O SR 49, Calaveras, CA
Built 1930 Load: 16.2 t ADT: 35
WARREN RD
FairOver: WARREN CREEK
0.5 MI W/O EVERGREEN RD, Calaveras, CA
Built 1937 Load: 16.2 t ADT: 207
WARREN RD
FairOver: WARREN CREEK
0.9 MI W/O EVERGREEN RD, Calaveras, CA
Built 1937 Load: 16.2 t ADT: 207
WARREN RD
FairOver: INDIAN CREEK
N OF INTERSECT SR 26, Calaveras, CA
Built 1936 Load: 16.2 t ADT: 277
EVERGREEN RD
FairOver: WARREN CREEK
0.7 MI S OF SOUTHWORTH RD, Calaveras, CA
Built 1938 Load: 16.2 t ADT: 237
PETTINGER RD
FairOver: BEAR CREEK
3/4 MI S OF S.R. 12, Calaveras, CA
Built 1937 Load: 16.2 t ADT: 955
WALNUT DRIVE
FairOver: GLENN-COLUSA CANAL
0.2 MI W ZUMWALT RD, Colusa, CA
Built 1940 Load: 16.2 t ADT: 650
DANLEY ROAD
FairOver: GLENN-COLUSA CANAL
0.7 MI N FRESHWATER RD, Colusa, CA
Built 1924 Load: 16.2 t ADT: 161
FINKS ROAD
FairOver: GLENN-COLUSA CANAL
AT DANLEY ROAD, Colusa, CA
Built 1930 Load: 16.2 t ADT: 10
INTERSTATE 680
FairOver: CANAL & BIKE PATH
04-CC-680-16.08, Contra Costa, CA
Built 1956 Load: 16.2 t ADT: 257,000
MONUMENT BLVD
FairOver: PINE CREEK
0.2 MI NE OAK GROVE RD, Contra Costa, CA
Built 1940 Load: 16.2 t ADT: 32,500
BYRON HWY
FairOver: KELLOGG CREEK
0.5 MI S SR 4, Contra Costa, CA
Built 1940 Load: 16.2 t ADT: 13,637
MARSH CREEK RD
FairOver: MARSH CREEK
3 MI E MORGAN TERITORY RD, Contra Costa, CA
Built 1937 Load: 16.2 t ADT: 5,637
MARINA VISTA AVE
FairOver: SHELL OIL CO PIPE UC
0.4 MI S/W SHELL AVE, Contra Costa, CA
Built 1920 Load: 16.2 t ADT: 14,000
BEAR CREEK RD
FairOver: TRAVERSE CREEK
1.1 MI S/E GEORGETOWN RD, El Dorado, CA
Built 1925 Load: 16.2 t ADT: 300
OLD WHITE ROCK RD
FairOver: CARSON CREEK
1.1 MI E OF LATROBE RD, El Dorado, CA
Built 1918 Load: 16.2 t ADT: 100
FORNI ROAD
FairOver: WEBER CREEK
1.1 MI N/E MISSOURI FLAT, El Dorado, CA
Built 1914 Load: 16.2 t ADT: 2,049
E MANNING AVE
FairOver: FOWLER SWITCH CANAL
1.0 MI W OF MCCALL AVE, Fresno, CA
Built 1938 Load: 16.2 t ADT: 4,200
S ELM AVE
FairOver: MURPHY SLOUGH
2 MI SOUTH OF ELKHORN AVE, Fresno, CA
Built 1922 Load: 16.2 t ADT: 340
BRANNON AVE
FairOver: LAGUNA CANAL
0.3 MI S OF MERRILL AVE, Fresno, CA
Built 1931 Load: 16.2 t ADT: 830
N. CLOVIS AVE
FairOver: MILL DITCH
SOUTH OF MCKINLEY AV, Fresno, CA
Built 1921 Load: 16.2 t ADT: 35,496
E HERNDON AVE
FairOver: ENTERPRISE CANAL
.05 MI WEST OF DEWOLF AVE, Fresno, CA
Built 1947 Load: 16.2 t ADT: 7,900
N ACADEMY AVE
FairOver: FRESNO CANAL
0.4 MI SOUTH OF MCKINLEY, Fresno, CA
Built 1942 Load: 16.2 t ADT: 3,200
S FOWLER AVE
FairOver: MURPHY SLOUGH
0.06 MI N OF RIVERDALE AV, Fresno, CA
Built 1922 Load: 16.2 t ADT: 2,200
S FOWLER AVE
FairOver: LIBERTY DITCH
0.9 MI NORTH OF HARLAN AV, Fresno, CA
Built 1925 Load: 16.2 t ADT: 1,900
S FOWLER AVE
FairOver: FOWLER SWITCH CANAL
0.4 MI S OF FLORAL AVE, Fresno, CA
Built 1925 Load: 16.2 t ADT: 2,300
E ELKHORN AVE
FairOver: LIBERTY DITCH
0.4 MI EAST OF S.R. 41, Fresno, CA
Built 1949 Load: 16.2 t ADT: 1,600
N SAN PABLO AVE
FairOver: DRY CREEK CANAL
AT ELIZABETH ST, Fresno, CA
Built 1935 Load: 16.2 t ADT: 3,101
E FLORAL AVE
FairOver: SELMA BRANCH C & K CANAL
AT (E/O) ORANGE AVE, Fresno, CA
Built 1936 Load: 16.2 t ADT: 5,650
E ASHLAN AVE
FairOver: ENTERPRISE CANAL
0.1 MI WEST OF RIVERBEND, Fresno, CA
Built 1940 Load: 16.2 t ADT: 800
N RIVERBEND AVE
FairOver: ENTERPRISE CANAL
0.5 MI NORTH OF SHIELDS, Fresno, CA
Built 1940 Load: 16.2 t ADT: 800
N GRANTLAND AVE
FairOver: HOUGHTON CANAL
0.5 MI SOUTH OF BELMONT, Fresno, CA
Built 1940 Load: 16.2 t ADT: 700
N ZEDIKER AVE
FairOver: GOULD CANAL
0.6 MI NORTH OF OLIVE AVE, Fresno, CA
Built 1950 Load: 16.2 t ADT: 300
E NEBRASKA AVE
FairOver: CROSSCUT CANAL
0.9 MI E OF FOWLER AV, Fresno, CA
Built 1925 Load: 16.2 t ADT: 2,100
E ADAMS AVE
FairOver: COLE SLOUGH CANAL
1.25 MI E OF ACADEMY AVE, Fresno, CA
Built 1925 Load: 16.2 t ADT: 3,000
S NEWMARK AVE
FairOver: COLE SLOUGH CANAL
0.5 MI S OF ADAMS AVE, Fresno, CA
Built 1925 Load: 16.2 t ADT: 1,400
E SOUTH AVE
FairOver: KINGSBURG BRANCH CANAL
0.1 MI E OF ACADEMY AVE, Fresno, CA
Built 1925 Load: 16.2 t ADT: 300
E HUNTSMAN AVE
FairOver: KINGSBURG BRANCH CANAL
0.7 MI E OF BETHEL AVE, Fresno, CA
Built 1935 Load: 16.2 t ADT: 200
Showing 8,351-8,400 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.