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
SCOTT GRANT RD
FairOver: TENNESSEE CREEK
1 MI NW OF MARYSVILLE RD, Yuba, CA
Built 1921 Load: 16.2 t ADT: 180
SPENCEVILLE RD
FairOver: DRY CREEK
0.8 MI E OF WALDO RD, Yuba, CA
Built 1920 Load: 16.2 t ADT: 50
FRENCHTOWN RD
FairOver: DRY CREEK
2 1/3 MI N OF MARYSVILLE, Yuba, CA
Built 1930 Load: 16.2 t ADT: 430
SPRING VALLEY RD
FairOver: LITTLE DRY CREEK
0.3 MI W MARYSVILLE RD, Yuba, CA
Built 1920 Load: 16.2 t ADT: 190
TRAIL
FairOver: TENAYA CREEK
Approximately 0.4 miles n, Mariposa, CA
Built 1928 Load: 16.3 t ADT: 1
State Route 186
FairOver: All American Canal
6 miles NW of Yuma, Ari, Imperial, CA
Built 1938 Load: 16.4 t ADT: 13,200
NORD GIANELLA RD
FairOver: ROCK CREEK
0.55 MI W HMTN ND CA HY, Butte, CA
Built 1940 Load: 16.5 t ADT: 83
WHITE ROAD
FairOver: RD 108 10P CANAL
2.4 MI E OF JOHNS SCHOOL, Colusa, CA
Built 1970 Load: 16.5 t ADT: 59
PERRY CREEK RD
FairOver: PERRY CREEK
0.2 MI E/O MT AUKUM RD, El Dorado, CA
Built 1930 Load: 16.5 t ADT: 1,110
N FRANKWOOD AVE
FairOver: ALTA MAIN CANAL
1.15 MI S OF PIEDRA RD, Fresno, CA
Built 1925 Load: 16.5 t ADT: 1,080
E PARLIER AVE
FairOver: TRAVERS CREEK
0.5 MI E ENGLEHART AVE, Fresno, CA
Built 1925 Load: 16.5 t ADT: 600
ROAD 67
FairOver: PANCAKE DRAW
1 MI E OF RD 'Z', Glenn, CA
Built 1930 Load: 16.5 t ADT: 93
CO ROAD C
FairOver: HAMBRIGHT CREEK
0.5 MI N ROAD 200, Glenn, CA
Built 1960 Load: 16.5 t ADT: 51
MAIN STREET
FairOver: ROHNER CREEK
JUST EAST OF 16TH STREET, Humboldt, CA
Built 1922 Load: 16.5 t ADT: 11,181
9TH AVE
FairOver: FRIANT-KERN CANAL
0.6 MI EAST OF ZACHARY AV, Kern, CA
Built 1955 Load: 16.5 t ADT: 390
ZACHARY AVE
FairOver: FRIANT-KERN CANAL
0.4 MI SOUTH OF POND RD, Kern, CA
Built 1949 Load: 16.5 t ADT: 150
SCOTT ROAD
FairOver: LONG VALLEY CREEK
0.8 MI WEST OF US HWY 395, Lassen, CA
Built 1975 Load: 16.5 t ADT: 100
U.S. HIGHWAY 101
FairOver: GOLDEN GATE-SAN FRAN BAY
04-MRN-101-L0.01, Marin, CA
Built 1937 Load: 16.5 t ADT: 112,000
MADRONE AVE
FairOver: SAN ANSELMO CREEK
150 FT E OF NOKOMIS, Marin, CA
Built 1930 Load: 16.5 t ADT: 1,500
U.S. HIGHWAY 101
FairOver: LONG VALLEY CREEK
01-MEN-101-63.47, Mendocino, CA
Built 1959 Load: 16.5 t ADT: 6,700
SNELLING ROAD
FairOver: MAIN CANAL
1 MI N LA PALOMA ROAD, Merced, CA
Built 1935 Load: 16.5 t ADT: 1,451
YOUD ROAD
FairOver: ESCALADIAN CANAL
1.1 MI E AMSTERDAM RD, Merced, CA
Built 1940 Load: 16.5 t ADT: 123
LA PALOMA ROAD
FairOver: MAIN CANAL
0.7 MI NE SNELLING ROAD, Merced, CA
Built 1935 Load: 16.5 t ADT: 56
CHOLAME ROAD
FairOver: LITTLE CHOLAME CREEK
0.03 MI S RANCHITA CYN RD, Monterey, CA
Built 1910 Load: 16.5 t ADT: 160
NORTH FORK ROAD
FairOver: N FORK LEWIS CREEK
2 MI NE OF SR 198, Monterey, CA
Built 1950 Load: 16.5 t ADT: 200
BUTT RESERVOIR RD
FairOver: BUTT RESERVOIR SPILLWAY
9.3 MI SOUTH OF SR 89, Plumas, CA
Built 1940 Load: 16.5 t ADT: 80
WALNUT GROVE XING
FairOver: SACRAMENTO RIVER
IN WALNUT GROVE, Sacramento, CA
Built 1952 Load: 16.5 t ADT: 6,626
FRANKLIN BLVD
FairOver: STONE LAKE DRAIN
3.2 MI N LAMBERT RD, Sacramento, CA
Built 1925 Load: 16.5 t ADT: 2,346
ANZAR ROAD
FairOver: SAN JUAN CREEK
0.35 MI W SAN JUAN HWY R, San Benito, CA
Built 1935 Load: 16.5 t ADT: 1,464
COMSTOCK ROAD
FairOver: ARROYO DE LOS VIBORAS
4 MI E FAIRVIEW RD, San Benito, CA
Built 1940 Load: 16.5 t ADT: 1,500
MERLIN DRIVE
FairOver: ENCANTO CREEK
150 FT S/O MARKET ST, San Diego, CA
Built 1940 Load: 16.5 t ADT: 5,743
TREASURE ISLAND RD
FairOver: SIDEHILL
JSO SHV #4/ JNO SHV #7B, San Francisco, CA
Built 1938 Load: 16.5 t ADT: 3,000
INTERSTATE 5 NB
FairOver: BEAVER SLOUGH
10-SJ-005-45.86, San Joaquin, CA
Built 1979 Load: 16.5 t ADT: 25,000
CLOVERDALE RD
FairOver: BUTANO CREEK
0.2 MI N CANYON RD, San Mateo, CA
Built 1963 Load: 16.5 t ADT: 193
STAFFORD ST
FairOver: CORDILLERAS CREEK
NORTH OF 'F' ST, San Mateo, CA
Built 1903 Load: 16.5 t ADT: 5,000
STATE ROUTE 192
FairOver: SANTA MONICA CANYON
05-SB-192-16.57, Santa Barbara, CA
Built 1928 Load: 16.5 t ADT: 2,600
RINCON HILL RD
FairOver: RINCON CREEK
0.45 MI N OF SR 150, Santa Barbara, CA
Built 1915 Load: 16.5 t ADT: 191
CARPINTERIA RD
FairOver: CARPINTERIA CREEK
0.2 MI S OF CASITAS PASS, Santa Barbara, CA
Built 1937 Load: 16.5 t ADT: 17,400
FRAZIER LAKE ROAD
FairOver: BRANCH OF PAJARO RIVER
0.4 MI S/E BLOOMFIELD AVE, Santa Clara, CA
Built 1927 Load: 16.5 t ADT: 3,800
SHOTGUN ROAD
FairOver: SHOTGUN CREEK
02-SHA-005-R55.59, Shasta, CA
Built 1915 Load: 16.5 t ADT: 10
CLARK CREEK ROAD
FairOver: BURNEY CREEK
0.5 MI NW OF SR 89, Shasta, CA
Built 1930 Load: 16.5 t ADT: 359
SUISUN VALLEY RD
FairOver: SUISUN CREEK
0.35 MI S MORRISON LANE, Solano, CA
Built 1909 Load: 16.5 t ADT: 1,052
GEYSERS RD
FairOver: FRASIER CREEK
20.4 MI N OF SR 128, Sonoma, CA
Built 1941 Load: 16.5 t ADT: 250
LAUGHLIN RD
FairOver: MARK WEST CREEK
1 MI N OF RIVER RD, Sonoma, CA
Built 1910 Load: 16.5 t ADT: 2,338
STATE ROUTE 4
FairOver: HOODS CREEK
10-STA-004-7.28, Stanislaus, CA
Built 1930 Load: 16.5 t ADT: 4,900
LAMPLEY ROAD
FairOver: T.I.D. MAIN CANAL
0.2 MI N/O LAKE RD, Stanislaus, CA
Built 1935 Load: 16.5 t ADT: 288
LASSEN RD
FairOver: SINGER CREEK
2.9 MI E HIGHWAY 99, Tehama, CA
Built 1938 Load: 16.5 t ADT: 60
STATE ROUTE 137
FairOver: OUTSIDE CREEK
06-TUL-137-23.38, Tulare, CA
Built 1921 Load: 16.5 t ADT: 21,000
RD 120
FairOver: SAND CREEK
0.35 MI. N SR 201, Tulare, CA
Built 1939 Load: 16.5 t ADT: 600
AVE 448 (MANNING)
FairOver: FRIANT-KERN CANAL
0.1 MI WEST OF ROAD 124, Tulare, CA
Built 1947 Load: 16.5 t ADT: 100
Showing 8,651-8,700 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.