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
LUCAS VALLEY ROAD
GoodOver: MILLER CREEK
1.7 MI W OF SR 101, Marin, CA
Built 1961 Load: 35.3 t ADT: 1,000
US HIGHWAY 101
GoodOver: HAEHL CREEK
01-MEN-101-R43.85, Mendocino, CA
Built 2016 Load: 35.3 t ADT: 8,000
STATE ROUTE 59
GoodOver: BLACK RASCAL CANAL
10-MER-059-16.27, Merced, CA
Built 1916 Load: 35.3 t ADT: 15,950
IRR CO RD 87
GoodOver: ROBERTS SLOUGH
0.9 MI NE LKOT HKAMORE RD, Modoc, CA
Built 1955 Load: 35.3 t ADT: 255
IRR ADIN-LKT CR87
GoodOver: ROBERTS SLOUGH
1.0 MI NE LKOT-HCKMORE RD, Modoc, CA
Built 1955 Load: 35.3 t ADT: 255
SAN BENANCIO RD
GoodOver: TORO CREEK
0.05 MI S SR 68, Monterey, CA
Built 1971 Load: 35.3 t ADT: 5,000
ALLISON RANCH ROAD
GoodOver: WOLF CREEK
0.6 MI N/O SR 49, Nevada, CA
Built 1999 Load: 35.3 t ADT: 265
INTERSTATE 10 WB
GoodOver: ISORA DITCH
08-RIV-010-R139.18, Riverside, CA
Built 1969 Load: 35.3 t ADT: 11,750
INTERSTATE 10 EB
GoodOver: ISORA DITCH
08-RIV-010-R139.18, Riverside, CA
Built 1969 Load: 35.3 t ADT: 11,750
EAST NATOMA ST WB
GoodOver: HUMBUG CREEK
NEAR BLUE RAVINE ROAD, Sacramento, CA
Built 2005 Load: 35.3 t ADT: 6,000
MARIPOSA RD
GoodOver: UP RR
100 FT S/E OF ROUTE 15, San Bernardino, CA
Built 1967 Load: 35.3 t ADT: 2,864
CALIENTE RD
GoodOver: UP RR
80' NW OF RTE 15, San Bernardino, CA
Built 1966 Load: 35.3 t ADT: 1,208
INTERSTATE 5
GoodOver: ROSE CANYON CREEK
11-SD-005-R23.82-SD, San Diego, CA
Built 1954 Load: 35.3 t ADT: 143,000
PALOMAR AIRPORT RD
GoodOver: NCTD, BNSF RY & AMTRAK
0.25MI W/O ROUTE 1-5, San Diego, CA
Built 1965 Load: 35.3 t ADT: 10,933
ALPINE BLVD
GoodOver: VIEJAS CREEK
0.45 MI E/O I-8 EXIT 33, San Diego, CA
Built 1969 Load: 35.3 t ADT: 1,500
HEWITT ROAD
GoodOver: SOUTH BRANCH DUCK CREEK
0.7 MI N SH 4, San Joaquin, CA
Built 1963 Load: 35.3 t ADT: 270
CLEMENTS RD
GoodOver: BRANCH MOSHER SLOUGH
0.5 MI N COMSTOCK RD, San Joaquin, CA
Built 1969 Load: 35.3 t ADT: 1,146
PRICE ST-S101 ONRP
GoodOver: PISMO CREEK
05-SLO-101-16.40-PBCH, San Luis Obispo, CA
Built 1956 Load: 35.3 t ADT: 8,400
ROAD-1 SOUTH
GoodOver: PEDESTRIAN WALKWAY
TERMINAL 1 - AREA A, San Mateo, CA
Built 1973 Load: 35.3 t ADT: 12,930
ROAD-1 SOUTH
GoodOver: PEDESTRIAN WALKWAY
TERMINAL 1 - AREA C, San Mateo, CA
Built 1973 Load: 35.3 t ADT: 12,930
ROAD-1 SOUTH
GoodOver: PEDESTRIAN WALKWAY
TERMINAL 2 - AREA D, San Mateo, CA
Built 1964 Load: 35.3 t ADT: 12,930
CAMPGROUND ROAD
GoodOver: ALISO CREEK
.5 MI FROM RIVER XING, Santa Barbara, CA
Built 1978 Load: 35.3 t ADT: 50
INTERSTATE 680
GoodOver: UPPER PENITENCIA CREEK
04-SCL-680-M3.45, Santa Clara, CA
Built 1974 Load: 35.3 t ADT: 175,000
WESTSIDE ROAD
GoodOver: A.C.I.D. CANAL
0.2 MI N BRANSTETTER LANE, Shasta, CA
Built 1962 Load: 35.3 t ADT: 1,100
STATE ROUTE 49
GoodOver: HILLSIDE
03-SIE-049-7.47, Sierra, CA
Built 1976 Load: 35.3 t ADT: 600
STATE ROUTE 113
GoodOver: NEW ALAMO CREEK CHANNEL
04-SOL-113-11.58, Solano, CA
Built 1964 Load: 35.3 t ADT: 4,100
DEL PUERTO CYN RD
GoodOver: DEL PUERTO CREEK
18.8 MI W/O RTE I-5, Stanislaus, CA
Built 1960 Load: 35.3 t ADT: 96
INTERSTATE 5 SB
GoodOver: THOMES CREEK OVERFLOW
02-TEH-005-R11.78, Tehama, CA
Built 1965 Load: 35.3 t ADT: 14,500
INTERSTATE 5 NB
GoodOver: THOMES CREEK OVERFLOW
02-TEH-005-R11.78, Tehama, CA
Built 1965 Load: 35.3 t ADT: 14,500
STATE ROUTE 63
GoodOver: COTTONWOOD CREEK
06-TUL-063-17.29, Tulare, CA
Built 1969 Load: 35.3 t ADT: 5,900
STATE ROUTE 16
GoodOver: MOSSY CREEK
03-YOL-016-18.13, Yolo, CA
Built 1954 Load: 35.3 t ADT: 1,550
CR E11 (ROAD 99E)
GoodOver: COLUSA BASIN DRAIN CANAL
.2 MI N OF CR 13, Yolo, CA
Built 1966 Load: 35.3 t ADT: 265
INTERSTATE 10 WB
GoodOver: SAN GABRIEL RIVER
07-LA-010-30.84-BWP, Los Angeles, CA
Built 1933 Load: 35.4 t ADT: 116,500
STATE ROUTE 60
GoodOver: SUNOL DR
07-LA-060-R2.75, Los Angeles, CA
Built 1967 Load: 35.4 t ADT: 241,000
GREENBACK LANE
GoodOver: AMERICAN RIVER
0.2 MI E FOLSOM-AUBURN RD, Sacramento, CA
Built 1917 Load: 35.4 t ADT: 25,000
SOLSTICE CANYON RO
GoodOver: SOLSTICE CREEK
CA Route 1 (Pacific Coast, San Benito, CA
Built 2002 Load: 35.4 t ADT: 50
S880-W84 CONNECTOR
GoodOver: PEDESTRIAN WALKWAY
04-ALA-880-10.31-FMT, Alameda, CA
Built 1990 Load: 35.6 t ADT: 22,000
STATE ROUTE 99 NB
GoodOver: HAMLIN SLOUGH
03-BUT-099-25.35, Butte, CA
Built 1952 Load: 35.6 t ADT: 14,125
ROAD 21N20
GoodOver: SLY CREEK
SLY CREEK, Butte, CA
Built 1966 Load: 35.6 t ADT: 50
BURSON RD
GoodOver: BEAR CREEK
1/4 MI S OF SR 12, Calaveras, CA
Built 1986 Load: 35.6 t ADT: 1,104
TULE ROAD
GoodOver: COLUSA DRAIN
1.2 MI E COLLEGE CITY RD, Colusa, CA
Built 1958 Load: 35.6 t ADT: 524
GOLF CLUB ROAD
GoodOver: GRAYSON CREEK
0.15 MI W- CONTRA COSTA, Contra Costa, CA
Built 2014 Load: 35.6 t ADT: 700
INTERSTATE 5 NB
GoodOver: DOMENGINE UC
06-FRE-005-22.85, Fresno, CA
Built 1968 Load: 35.6 t ADT: 16,500
W MT WHITNEY AVE
GoodOver: BURREL DITCH
0.7 MI E OF S MARKS AVE, Fresno, CA
Built 1925 Load: 35.6 t ADT: 5,600
STATE ROUTE 43
GoodOver: POSO CREEK
06-KER-043-29.52, Kern, CA
Built 1959 Load: 35.6 t ADT: 3,200
E10 ON-RAMP
GoodOver: BALLONA CREEK
07-LA-010-R9.12-LA, Los Angeles, CA
Built 1964 Load: 35.6 t ADT: 7,750
RAMONA BLVD
GoodOver: SAN GABRIEL RIV
0.1MI W/O I-605 FWY, Los Angeles, CA
Built 1961 Load: 35.6 t ADT: 38,792
LARK ELLEN AVE
GoodOver: WALNUT CRK
0.4MI S/O I-10 FWY, Los Angeles, CA
Built 1960 Load: 35.6 t ADT: 11,999
TOURNAMENT RD
GoodOver: PICO CYN CHAN
0.3MI N/O WILEY CYN RD, Los Angeles, CA
Built 1973 Load: 35.6 t ADT: 7,993
PICKENS ST
GoodOver: PICKENS CYN CHAN
0.1MI W/O ROSEMONT AVE, Los Angeles, CA
Built 1935 Load: 35.6 t ADT: 510
Showing 24,101-24,150 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |