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
ARTESIA BLVD
UnknownOver: INTERSTATE 710
07-LA-710-12.89-LBCH, Los Angeles, CA
Built 1953 ADT: 199,000
ALONDRA BLVD
UnknownOver: ROUTE 710
07-LA-710-13.95-COM, Los Angeles, CA
Built 1958 ADT: 233,000
COMPTON BLVD
UnknownOver: ROUTE 710
07-LA-710-14.45-PRM, Los Angeles, CA
Built 1986 ADT: 234,000
ROSECRANS AVE
UnknownOver: ROUTE 710
07-LA-710-14.98-PRM, Los Angeles, CA
Built 1990 ADT: 6,700
IMPERIAL HIGHWAY
UnknownOver: ROUTE 710
07-LA-710-16.99-LYN, Los Angeles, CA
Built 1956 ADT: 20,000
FIRESTONE BLVD
UnknownOver: INTERSTATE 710
07-LA-710-18.44-SGT, Los Angeles, CA
Built 1957 ADT: 19,401
UP RR
UnknownOver: INTERSTATE 710
07-LA-710-18.74-SGT, Los Angeles, CA
Built 1957 ADT: 225,000
CLARA STREET
UnknownOver: INTERSTATE 710
07-LA-710-19.40-BELL, Los Angeles, CA
Built 1957 ADT: 213,000
FLORENCE AVE
UnknownOver: INTERSTATE 710
07-LA-710-19.73-BELL, Los Angeles, CA
Built 1957 ADT: 13,601
GAGE AVENUE
UnknownOver: INTERSTATE 710
07-LA-710-20.27-BELL, Los Angeles, CA
Built 1957 ADT: 222,000
UP RR & AMTRAK
UnknownOver: INTERSTATE 710
07-LA-710-20.51-BELL, Los Angeles, CA
Built 1957 ADT: 218,000
SLAUSON AVE
UnknownOver: INTERSTATE 710
07-LA-710-21.03-BELL, Los Angeles, CA
Built 1957 ADT: 207,000
LA JUNCTION RY
UnknownOver: INTERSTATE 710
07-LA-710-21.28-BELL, Los Angeles, CA
Built 1955 ADT: 207,000
I 710
UnknownOver: BNSF RY,AMTRAK,METROLINK
07-LA-710-22.17-VER, Los Angeles, CA
Built 1954 ADT: 1,300
I 710
UnknownOver: WASHINGTON BLVD
07-LA-710-22.45-CMRC, Los Angeles, CA
Built 1955 ADT: 32,000
I 5 TRUCK
UnknownOver: SR 14 (SIERRA HWY)
07-LA-005S-C45.49-LA, Los Angeles, CA
Built 1955 ADT: 5,200
N5TRK-N14 CONN
UnknownOver: SR 14 (SIERRA HWY)
07-LA-005S-C45.49-LA, Los Angeles, CA
Built 1975 ADT: 5,200
DUDLEY STREET
UnknownOver: INTERSTATE 10 AND RAMPS
07-LA-010-44.19-POM, Los Angeles, CA
Built 1969 ADT: 247,000
INTERSTATE 10
UnknownOver: WHITE AVENUE
07-LA-010-45.28-POM, Los Angeles, CA
Built 1954 ADT: 12,000
INTERSTATE 10
UnknownOver: GAREY, ORANGE, MC KINLEY
07-LA-010-45.73-POM, Los Angeles, CA
Built 1954 ADT: 99
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 110
07-LA-110-21.04-LA, Los Angeles, CA
Built 1954 ADT: 3,000
INTERSTATE 10
UnknownOver: TOWNE AVENUE
07-LA-010-46.40-POM, Los Angeles, CA
Built 1954 ADT: 17,000
INTERSTATE 10
UnknownOver: SAN ANTONIO AVE
07-LA-010-46.72-POM, Los Angeles, CA
Built 1954 ADT: 6,000
INTERSTATE 10
UnknownOver: INDIAN HILL BLVD
07-LA-010-47.74-CLA, Los Angeles, CA
Built 1954 ADT: 28,000
BNSF, SCRRA METRO
UnknownOver: WB10-CAMPUS RD OFFRAMP
07-LA-010-21.10-LA, Los Angeles, CA
Built 1974 ADT: 9,000
S101-GOWER ST OFF
UnknownOver: ARGYLE AV-S101 ON-RAMP
07-LA-101-7.04-LA, Los Angeles, CA
Built 1977 ADT: 7,000
US HIGHWAY 101 OFF
UnknownOver: CAHUENGA BLVD
07-LA-101-8.25-LA, Los Angeles, CA
Built 1954 ADT: 18,000
ROUTE 710
UnknownOver: TRIGGS STREET
07-LA-710-23.14-CMRC, Los Angeles, CA
Built 1955 ADT: 1,000
INTERSTATE 10
UnknownOver: VIA VERDE
07-LA-010-40.46, Los Angeles, CA
Built 1954 ADT: 481
FAIRPLEX DRIVE
UnknownOver: INTERSTATE 10
07-LA-010-43.66-POM, Los Angeles, CA
Built 1969 ADT: 247,000
ATLANTIC BL NB-N71
UnknownOver: ATLANTIC BLVD S/BND
07-LA-710-22.00-VER, Los Angeles, CA
Built 1957 ADT: 18,687
S710-BANDINI OFFRP
UnknownOver: BANDINI BLVD
07-LA-710-21.99-VER, Los Angeles, CA
Built 1957 ADT: 23,898
INTERSTATE 710
UnknownOver: BANDINI BLVD
07-LA-710-21.99-VER, Los Angeles, CA
Built 1957 ADT: 24,800
ESTARA AVE OC
UnknownOver: ROUTE 2
07-LA-002-16.38-LA, Los Angeles, CA
Built 1976 ADT: 153,000
STATE ROUTE 110
UnknownOver: 11TH STREET
07-LA-110-21.99-LA, Los Angeles, CA
Built 1953 ADT: 10,000
INTERSTATE 10
UnknownOver: W10-S605 RAMP
07-LA-010-31.11-BWP, Los Angeles, CA
Built 1956 ADT: 207,800
I 10
UnknownOver: LEXINGTON AVE
07-LA-010-28.84-EMTE, Los Angeles, CA
Built 1956 ADT: 2,740
INTERSTATE 110
UnknownOver: PICO BLVD
07-LA-110-21.76-LA, Los Angeles, CA
Built 1953 ADT: 15,000
INTERSTATE 110
UnknownOver: VENICE BLVD
07-LA-110-21.50-LA, Los Angeles, CA
Built 1953 ADT: 18,000
INTERSTATE 110
UnknownOver: WASHINGTON BLVD
07-LA-110-21.24-LA, Los Angeles, CA
Built 1954 ADT: 1
FIGUEROA ST & 23RD
UnknownOver: INTERSTATE 110
07-LA-110-20.92-LA, Los Angeles, CA
Built 1954 ADT: 244,600
ADAMS BLVD
UnknownOver: INTERSTATE 110
07-LA-110-20.71-LA, Los Angeles, CA
Built 1956 ADT: 300,000
28TH STREET
UnknownOver: INTERSTATE 110 & RAMP
07-LA-110-20.58-LA, Los Angeles, CA
Built 1996 ADT: 1,000
30TH STREET
UnknownOver: INTERSTATE 110 & RAMP
07-LA-110-20.46-LA, Los Angeles, CA
Built 1996 ADT: 300,000
INTERSTATE 110
UnknownOver: JEFFERSON BLVD
07-LA-110-20.21-LA, Los Angeles, CA
Built 1995 ADT: 23,000
INTERSTATE 110
UnknownOver: EXPOSITION BLVD
07-LA-110-20.00-LA, Los Angeles, CA
Built 1956 ADT: 3,000
INTERSTATE 110 SB
UnknownOver: 39TH STREET
07-LA-110-19.68-LA, Los Angeles, CA
Built 1996 ADT: 3,000
INTERSTATE 110 NB
UnknownOver: 39TH STREET
07-LA-110-19.68-LA, Los Angeles, CA
Built 1996 ADT: 3,000
INTERSTATE 110
UnknownOver: MARTIN LUTHER KING JR BL
07-LA-110-19.50-LA, Los Angeles, CA
Built 1956 ADT: 3,000
43RD ST
UnknownOver: INTERSTATE 110
07-LA-110-19.12-LA, Los Angeles, CA
Built 1993 ADT: 300,000
Showing 1,601-1,650 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 |