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
US HIGHWAY 101 SB
UnknownOver: HIGHLAND-NB 101 ON RAMP
07-LA-101-7.84-LA, Los Angeles, CA
Built 1954 ADT: 71,000
WILTON PLACE
UnknownOver: ROUTE 101
07-LA-101-6.15-LA, Los Angeles, CA
Built 1951 ADT: 196,000
HOLLYWOOD BL-S101
UnknownOver: S101-VAN NESS AV ON-RAMP
07-LA-101-6.41-LA, Los Angeles, CA
Built 1977 ADT: 7,005
INTERSTATE 210
UnknownOver: BERKSHIRE PL UC
07-LA-210-R21.53-LCF, Los Angeles, CA
Built 1974 ADT: 9,500
INTERSTATE 405
UnknownOver: GETTY CENTER DRIVE
07-LA-405-34.21-LA, Los Angeles, CA
Built 1962 ADT: 2,500
INTERSTATE 405
UnknownOver: SEPULVEDA BLVD
07-LA-405-38.59-LA, Los Angeles, CA
Built 1962 ADT: 8,255
INTERSTATE 405
UnknownOver: VENTURA BLVD
07-LA-405-39.00-LA, Los Angeles, CA
Built 1956 ADT: 39,820
N405-N&S101 CONNEC
UnknownOver: VENTURA BLVD
07-LA-405-39.00-LA, Los Angeles, CA
Built 1956 ADT: 39,820
3RD ST-S110 ON RMP
UnknownOver: STATE ROUTE 110
07-LA-110-23.17-LA, Los Angeles, CA
Built 1951 ADT: 289,000
4TH ST EB & RAMP
UnknownOver: STATE ROUTE 110 & RAMPS
07-LA-110-23.01-LA, Los Angeles, CA
Built 1951 ADT: 500
5TH ST-SB 110 ONRP
UnknownOver: STATE ROUTE 110 & RAMP
07-LA-110-22.88-LA, Los Angeles, CA
Built 1953 ADT: 99
6TH STREET
UnknownOver: STATE ROUTE 110 & RAMPS
07-LA-110-22.80-LA, Los Angeles, CA
Built 1953 ADT: 2,000
SB110-16TH OFFRAMP
UnknownOver: STATE ROUTE 110 & RAMPS
07-LA-110-22.76-LA, Los Angeles, CA
Built 1953 ADT: 12,000
WILSHIRE BLVD
UnknownOver: STATE ROUTE 110 & RAMP
07-LA-110-22.67-LA, Los Angeles, CA
Built 1952 ADT: 99
7TH STREET
UnknownOver: STATE ROUTE 110 & RAMPS
07-LA-110-22.56-LA, Los Angeles, CA
Built 1953 ADT: 270,000
STATE ROUTE 110
UnknownOver: 8TH STREET
07-LA-110-22.44-LA, Los Angeles, CA
Built 1953 ADT: 19,000
NB 110-6TH OFFRAMP
UnknownOver: 8TH STREET
07-LA-110-22.44-LA, Los Angeles, CA
Built 1953 ADT: 21,000
SB 110-8TH OFFRAMP
UnknownOver: 8TH ST-SB 110 ON RAMP
07-LA-110-22.37-LA, Los Angeles, CA
Built 1953 ADT: 2,000
STATE ROUTE 110
UnknownOver: 9TH STREET
07-LA-110-22.27-LA, Los Angeles, CA
Built 1953 ADT: 19,000
3RD ST ON-RAMP
UnknownOver: ROUTE 60
07-LA-060-R2.39, Los Angeles, CA
Built 1965 ADT: 239,000
MAIN STREET
UnknownOver: S101-LOS ANGELES ST OFF
07-LA-101-0.95-LA, Los Angeles, CA
Built 1950 ADT: 7,500
ORANGE GROVE BLVD
UnknownOver: STATE ROUTE 134 & RAMPS
07-LA-134-R12.96-PAS, Los Angeles, CA
Built 1971 ADT: 14,401
INTERSTATE 5
UnknownOver: PARAMOUNT BLVD
07-LA-005-8.95-DNY, Los Angeles, CA
Built 1953 ADT: 22,440
LOS ANGELES STREET
UnknownOver: US 101 ON-RAMP
07-LA-101-0.88-LA, Los Angeles, CA
Built 1950 ADT: 13,700
STATE ROUTE 60
UnknownOver: THIRD STREET
07-LA-060-R2.59, Los Angeles, CA
Built 1965 ADT: 18,050
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 60
07-LA-060-R2.94, Los Angeles, CA
Built 1967 ADT: 249,000
EASTERN AVE
UnknownOver: STATE ROUTE 60
07-LA-060-R3.06, Los Angeles, CA
Built 1967 ADT: 62,000
AVE 36 OC
UnknownOver: ROUTE 2
07-LA-002-16.64-LA, Los Angeles, CA
Built 1976 ADT: 143,000
ALAMEDA ST
UnknownOver: ROUTE 101
07-LA-101-0.76-LA, Los Angeles, CA
Built 1954 ADT: 2,000
S101-VINE ST OFF-R
UnknownOver: CAHUENGA BL-S101 ON-RAMP
07-LA-101-7.32-LA, Los Angeles, CA
Built 1953 ADT: 3,500
DOWNEY ROAD
UnknownOver: INTERSTATE 5
07-LA-005-14.25, Los Angeles, CA
Built 1951 ADT: 251,000
ROUTE 710 NB
UnknownOver: ROUTE 5, CONN, TELEGRAPH
07-LA-710-23.19-CMRC, Los Angeles, CA
Built 1954 ADT: 232,000
PEDESTRIAN WALKWAY
UnknownOver: I 10, HOV, SCRRA, BNSF
07-LA-010-21.86-ALH, Los Angeles, CA
Built 1952 ADT: 35,500
4TH ST EB RAMP
UnknownOver: STATE ROUTE 110 & RAMPS
07-LA-110-23.00-LA, Los Angeles, CA
Built 1951 ADT: 270,000
ROUTE 710 SB
UnknownOver: ROUTE 5, CONN, TELEGRAPH
07-LA-710-23.21-CMRC, Los Angeles, CA
Built 1955 ADT: 5,000
S710-S5 & N5-N710
UnknownOver: I 5 NB & TELEGRAPH
07-LA-710-23.26-CMRC, Los Angeles, CA
Built 1956 ADT: 228,000
N710-N5 CONNECTOR
UnknownOver: ROUTE 5 SB
07-LA-710-23.20-CMRC, Los Angeles, CA
Built 1955 ADT: 232,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 10
07-LA-010S-19.53-LA, Los Angeles, CA
Built 1952 ADT: 6,200
NB 110-6TH OFFRAMP
UnknownOver: 8TH STREET-NB 110 ONRAMP
07-LA-110-22.49-LA, Los Angeles, CA
Built 1953 ADT: 99
STATE ROUTE 110
UnknownOver: OLYMPIC BLVD
07-LA-110-22.12-LA, Los Angeles, CA
Built 1953 ADT: 28,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 5
07-LA-005-10.06-CMRC, Los Angeles, CA
Built 1978 ADT: 218,000
PEDESTRIAN WALKWAY
UnknownOver: I 10, SCRRA, BNSF, HOV
07-LA-010-23.12-ALH, Los Angeles, CA
Built 1968 ADT: 35,500
STATE ROUTE 47
UnknownOver: W47-HARBOR BLVD OFF RAMP
07-LA-047-0.73-LA, Los Angeles, CA
Built 1963 ADT: 5,000
PEDESTRIAN WALKWAY
UnknownOver: U.S. HIGHWAY 101
07-LA-101-2.60-LA, Los Angeles, CA
Built 1951 ADT: 265,000
INTERSTATE 10 WB
UnknownOver: SIXTH STREET
07-LA-010-23.65-ALH, Los Angeles, CA
Built 1953 ADT: 14,000
INTERSTATE 10 EB
UnknownOver: SIXTH STREET
07-LA-010-23.65-ALH, Los Angeles, CA
Built 1953 ADT: 14,000
ARCADIA STREET
UnknownOver: N101-NEW HIGH ST OFF-RMP
07-LA-101-1.02-LA, Los Angeles, CA
Built 1951 ADT: 8,700
LACTC ACCESS RD
UnknownOver: ROUTE 710
07-LA-710-10.31-LBCH, Los Angeles, CA
Built 1954 ADT: 186,000
UP RR
UnknownOver: INTERSTATE 710
07-LA-710-10.28-LBCH, Los Angeles, CA
Built 1954 ADT: 193,000
LONG BEACH BLVD
UnknownOver: ROUTE 710
07-LA-710-12.01-LBCH, Los Angeles, CA
Built 1974 ADT: 200,000
Showing 1,551-1,600 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 |