Total Bridges
27,040
Public highway bridges in California
State profile · Below median Poor share
California bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in California, based on the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
Data updated May 2026
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges whose lowest applicable component is rated 0-4
-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 - Poor-condition share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below California on the same metric.
OH
Ohio
4.54% top marginal rate
NJ
New Jersey
4.59% top marginal rate
CA
California
4.60% top marginal rate
AR
Arkansas
4.71% top marginal rate
WA
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
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
PoorOver: 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
SWTWATER SPRING RD
GoodOver: PORTER CREEK
4 MI W/O WESTSIDE RD, Sonoma, CA
Built 2005 Load: 31.4 t ADT: 140
AVE 176
GoodOver: LAKELAND CANAL
AT RD 24, Tulare, CA
Built 1965 Load: 31.4 t ADT: 200
WINDING ROAD
GoodOver: TUOLUMNE RIVER
NO DATA ENTERED, Tuolumne, CA
Built 1999 Load: 31.4 t ADT: 155
STATE ROUTE 33
GoodOver: BILLY CREEK
07-VEN-033-47.91, Ventura, CA
Built 1953 Load: 31.4 t ADT: 340
STATE ROUTE 150
GoodOver: COYOTE CREEK OVERFLOW
07-VEN-150-9.60, Ventura, CA
Built 1959 Load: 31.4 t ADT: 2,650
US HIGHWAY 101 SB
GoodOver: MOBIL PIER ACCESS
07-VEN-101-R39.78, Ventura, CA
Built 1973 Load: 31.4 t ADT: 38,000
INTERSTATE 5
GoodOver: OAT CREEK
03-YOL-005-R21.84, Yolo, CA
Built 1968 Load: 31.4 t ADT: 11,200
STATE ROUTE 24 WB
GoodOver: PRESLEY WAY
04-ALA-024-R3.97-OAK, Alameda, CA
Built 1970 Load: 31.8 t ADT: 143,000
STATE ROUTE 32
GoodOver: ROCK CREEK OVERFLOW
03-BUT-032-2.41, Butte, CA
Built 1921 Load: 31.8 t ADT: 11,700
STATE ROUTE 32
GoodOver: ROCK CREEK OVERFLOW
03-BUT-032-2.34, Butte, CA
Built 1921 Load: 31.8 t ADT: 11,700
STATE ROUTE 49
GoodOver: CALAVERITAS CREEK
10-CAL-049-16.41, Calaveras, CA
Built 1930 Load: 31.8 t ADT: 7,300
CENTER AVENUE
GoodOver: GRAYSON CREEK
0.1 MI W PACHECO BLVD, Contra Costa, CA
Built 1970 Load: 31.8 t ADT: 6,706
SR 269 (LASSEN AV)
GoodOver: CALIFORNIA AQUEDUCT
06-FRE-269-13.38, Fresno, CA
Built 1966 Load: 31.8 t ADT: 2,550
STATE ROUTE 162
GoodOver: BRUSH CANAL
03-GLE-162-73.55, Glenn, CA
Built 1963 Load: 31.8 t ADT: 2,700
ROAD 59
GoodOver: COLUSA DRAIN
1.4 MI W HWY 45, Glenn, CA
Built 1945 Load: 31.8 t ADT: 113
N101-DEAN CRK RD
GoodOver: DEAN CREEK
01-HUM-101-R14.31, Humboldt, CA
Built 1967 Load: 31.8 t ADT: 310
US HIGHWAY 101 SB
GoodOver: VAN DUZEN RIVER OVERFLOW
01-HUM-101-57.36, Humboldt, CA
Built 1952 Load: 31.8 t ADT: 4,400
US HIGHWAY 101 NB
GoodOver: VAN DUZEN RIVER OVERFLOW
01-HUM-101-57.36, Humboldt, CA
Built 1952 Load: 31.8 t ADT: 4,400
US HIGHWAY 101 NB
GoodOver: JORDAN CREEK
01-HUM-101-R46.19, Humboldt, CA
Built 1966 Load: 31.8 t ADT: 6,000
INTERSTATE 8 WB
GoodOver: BOULDER CREEK
11-IMP-008-R0.87L, Imperial, CA
Built 1963 Load: 31.8 t ADT: 5,423
US HIGHWAY 395 SB
GoodOver: LOS ANGELES AQUEDUCT
09-INY-395-R21.31, Inyo, CA
Built 1979 Load: 31.8 t ADT: 6,400
6TH AVE
GoodOver: TULE RIVER
0.5 MI S QUEBEC AVE, Kings, CA
Built 1953 Load: 31.8 t ADT: 1,500
ELDER AVE
GoodOver: LOWER KINGS RIVER DITCH
0.7 MI E OF 16TH AVE, Kings, CA
Built 1962 Load: 31.8 t ADT: 400
ATLANTIC-S710 ONRP
GoodOver: LA JUNCTION RY
07-LA-710-21.79-BELL, Los Angeles, CA
Built 1957 Load: 31.8 t ADT: 1,100
STATE ROUTE 14 NB
GoodOver: PURITAN MINE ROAD
07-LA-014-45.73, Los Angeles, CA
Built 1963 Load: 31.8 t ADT: 48,500
INTERSTATE 5 SB
GoodOver: QUAIL LAKE RD
07-LA-005-R81.76, Los Angeles, CA
Built 1967 Load: 31.8 t ADT: 35,890
INTERSTATE 210
GoodOver: ARROYO STREET
07-LA-210-R5.46-LA, Los Angeles, CA
Built 1975 Load: 31.8 t ADT: 121,000
SOLEDAD CYN RD
GoodOver: SPRING CYN WASH
0.1MI E/O SR-14 FWY, Los Angeles, CA
Built 1948 Load: 31.8 t ADT: 4,811
SIERRA MDR BLVD W
GoodOver: EATON WASH
0.5MI W/O SIERRA MADRE VL, Los Angeles, CA
Built 1958 Load: 31.8 t ADT: 7,604
PARTHENIA ST
GoodOver: ALISO CREEK
0.57MI W/O RESEDA BLVD, Los Angeles, CA
Built 1955 Load: 31.8 t ADT: 34,493
US HIGHWAY 101 SB
GoodOver: GIBSON CREEK
01-MEN-101-R24.32-UKI, Mendocino, CA
Built 1964 Load: 31.8 t ADT: 10,450
US HIGHWAY 101 NB
GoodOver: GIBSON CREEK
01-MEN-101-R24.32-UKI, Mendocino, CA
Built 1964 Load: 31.8 t ADT: 10,450
RESERVATION RD
GoodOver: EL TORO CREEK
0.5 MI W OF SH 68, Monterey, CA
Built 1973 Load: 31.8 t ADT: 10,400
OAK KNOLL AVE
GoodOver: NAPA RIVER OVERFLOW
0.35 MI SW SLVRDO TRAIL, Napa, CA
Built 1930 Load: 31.8 t ADT: 2,600
INTERSTATE 80
GoodOver: EAGLE LAKES ROAD
03-NEV-080-R62.03R, Nevada, CA
Built 1964 Load: 31.8 t ADT: 11,750
RETRAC WAY
GoodOver: WOLF CREEK
0.7 MI W/O LIME KILN RD, Nevada, CA
Built 2017 Load: 31.8 t ADT: 650
CROTHER RD
GoodOver: UP RR, BNSF RY, & AMTRAK
NEAR BURGAN RD, Placer, CA
Built 1973 Load: 31.8 t ADT: 700
INTERSTATE 10 EB
GoodOver: WIDE DITCH
08-RIV-010-R101.14, Riverside, CA
Built 1967 Load: 31.8 t ADT: 11,500
INTERSTATE 10 EB
GoodOver: EAST CHANNEL STUBBY WASH
08-RIV-010-R24.24, Riverside, CA
Built 1940 Load: 31.8 t ADT: 45,500
INTERSTATE 10 WB
GoodOver: KEIM ACCESS ROAD
08-RIV-010-R146.90, Riverside, CA
Built 1972 Load: 31.8 t ADT: 11,250
INTERSTATE 10 EB
GoodOver: KEIM ACCESS ROAD
08-RIV-010-R146.90-BLY, Riverside, CA
Built 1972 Load: 31.8 t ADT: 11,250
STETSON AVENUE
GoodOver: HEMET CHANNEL
0.7 M E/O WARREN RD, Riverside, CA
Built 2020 Load: 31.8 t ADT: 3,000
DILLARD RD
GoodOver: COSUMNES RIVER OVERFLOW
0.4 MI E OF SH 99, Sacramento, CA
Built 1973 Load: 31.8 t ADT: 2,920
I-15 NB ON RAMP
GoodOver: PANO DITCH
08-SBD-015-R138.72, San Bernardino, CA
Built 1965 Load: 31.8 t ADT: 1,800
INTERSTATE 15 NB
GoodOver: IVANPAH DITCH
08-SBD-015-179.39, San Bernardino, CA
Built 1963 Load: 31.8 t ADT: 19,000
ROUTE 40 E BOUND
GoodOver: WONSAN DITCH
08-SBD-040-R3.81, San Bernardino, CA
Built 1964 Load: 31.8 t ADT: 9,850
INTERSTATE 40 WB
GoodOver: RED WASH
08-SBD-040-R39.00, San Bernardino, CA
Built 1967 Load: 31.8 t ADT: 8,150
INTERSTATE 40 EB
GoodOver: RED WASH
08-SBD-040-R39.00, San Bernardino, CA
Built 1967 Load: 31.8 t ADT: 8,150
STATE ROUTE 18
GoodOver: HILLSIDE
08-SBD-018-R11.45, San Bernardino, CA
Built 1967 Load: 31.8 t ADT: 16,800
INTERSTATE 8 EB
GoodOver: CANEBRAKE RD
11-SD-008-R63.32, San Diego, CA
Built 1967 Load: 31.8 t ADT: 8,100
Showing 19,851-19,900 of 27,040 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.