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
WARD ROAD
UnknownOver: ROUTE 14
07-LA-014-46.76, Los Angeles, CA
Built 1968 ADT: 98,000
SB I-5 (TRUCK)
UnknownOver: ROUTE 405
07-LA-005-41.55-LA, Los Angeles, CA
Built 1974 ADT: 144,864
SOLEDAD CANYON RD
UnknownOver: SOLEDAD CANYON RD
07-LA-014-35.71, Los Angeles, CA
Built 1963 ADT: 2,800
INTERSTATE 10
UnknownOver: MOTOR AVE
07-LA-010-R6.74-LA, Los Angeles, CA
Built 1964 ADT: 18,100
MANNING AV-E10 ON
UnknownOver: INTERSTATE 10
07-LA-010-R7.08-LA, Los Angeles, CA
Built 1964 ADT: 254,000
INTERSTATE 10
UnknownOver: NATIONAL BLVD
07-LA-010-R7.21-LA, Los Angeles, CA
Built 1964 ADT: 29,281
INTERSTATE 10
UnknownOver: ROBERTSON BL-W10 ON RAMP
07-LA-010-R7.83-LA, Los Angeles, CA
Built 1964 ADT: 16,001
INTERSTATE 10
UnknownOver: ROBERTSON BL NATIONAL BL
07-LA-010-R7.92-LA, Los Angeles, CA
Built 1964 ADT: 22,400
INTERSTATE 10
UnknownOver: CATTARAUGUS AVE
07-LA-010-R8.30-LA, Los Angeles, CA
Built 1964 ADT: 5,240
INTERSTATE 10
UnknownOver: VERMONT AVENUE
07-LA-010-R13.80-LA, Los Angeles, CA
Built 1962 ADT: 44,004
INTERSTATE 10
UnknownOver: NORMANDIE AVE
07-LA-010-R13.30-LA, Los Angeles, CA
Built 1962 ADT: 33,600
WESTERN AVE
UnknownOver: INTERSTATE 10 AND RAMPS
07-LA-010-R12.82-LA, Los Angeles, CA
Built 1962 ADT: 287,000
GRAMERCY PLACE
UnknownOver: INTERSTATE 10 AND RAMPS
07-LA-010-R12.57-LA, Los Angeles, CA
Built 1962 ADT: 2,000
ARLINGTON AVE
UnknownOver: INTERSTATE 10
07-LA-010-R12.32-LA, Los Angeles, CA
Built 1962 ADT: 287,000
SIXTH AVE
UnknownOver: INTERSTATE 10
07-LA-010-R11.97-LA, Los Angeles, CA
Built 1962 ADT: 287,000
TENTH AVE
UnknownOver: INTERSTATE 10
07-LA-010-R11.70-LA, Los Angeles, CA
Built 1962 ADT: 287,000
CRENSHAW BLVD
UnknownOver: INTERSTATE 10
07-LA-010-R11.39-LA, Los Angeles, CA
Built 1962 ADT: 273,000
WEST BLVD
UnknownOver: INTERSTATE 10
07-LA-010-R11.03-LA, Los Angeles, CA
Built 1962 ADT: 273,000
CHERRY AVE OFF RMP
UnknownOver: ROUTE 405 NB ON-RAMP
07-LA-405-5.01-LBCH, Los Angeles, CA
Built 1964 ADT: 940
ORANGE AVE OFF RMP
UnknownOver: RTE 405 ON-RAMP
07-LA-405-4.99-LBCH, Los Angeles, CA
Built 1964 ADT: 22,102
N405-SB N LAKEWOOD
UnknownOver: WILLOW STREET
07-LA-405-2.30-LBCH, Los Angeles, CA
Built 1964 ADT: 99
INTERSTATE 10
UnknownOver: BALLONA CRK, FAIRFAX OFF
07-LA-010-R9.12-LA, Los Angeles, CA
Built 1964 ADT: 10,700
INTERSTATE 10
UnknownOver: HAUSER BLVD
07-LA-010-R9.74-LA, Los Angeles, CA
Built 1964 ADT: 15,300
INTERSTATE 10
UnknownOver: REDONDO BLVD
07-LA-010-R10.12-LA, Los Angeles, CA
Built 1964 ADT: 20,000
INTERSTATE 10
UnknownOver: LA BREA AVE
07-LA-010-R10.43-LA, Los Angeles, CA
Built 1964 ADT: 48,300
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 10
07-LA-010-R11.17-LA, Los Angeles, CA
Built 1964 ADT: 273,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 10
07-LA-010-R11.84-LA, Los Angeles, CA
Built 1964 ADT: 287,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 10
07-LA-010-R12.10-LA, Los Angeles, CA
Built 1964 ADT: 287,000
FOURTH ST
UnknownOver: ROUTE 1
07-LA-001-R34.89-SMCA, Los Angeles, CA
Built 1965 ADT: 58,000
LINCOLN BLVD
UnknownOver: INTERSTATE 10
07-LA-001-R34.55-SMCA, Los Angeles, CA
Built 1965 ADT: 215,000
11TH STREET
UnknownOver: INTERSTATE 10
07-LA-010-R2.38-SMCA, Los Angeles, CA
Built 1965 ADT: 141,500
14TH STREET
UnknownOver: INTERSTATE 10
07-LA-010-R2.61-SMCA, Los Angeles, CA
Built 1965 ADT: 141,000
17TH STREET
UnknownOver: INTERSTATE 10
07-LA-010-R2.84-SMCA, Los Angeles, CA
Built 1965 ADT: 141,000
20TH STREET
UnknownOver: INTERSTATE 10
07-LA-010-R3.07-SMCA, Los Angeles, CA
Built 1965 ADT: 141,500
CLOVERFIELD BLVD
UnknownOver: INTERSTATE 10
07-LA-010-R3.34-SMCA, Los Angeles, CA
Built 1963 ADT: 185,000
INTERSTATE 10
UnknownOver: STEWART STREET
07-LA-010-R3.71-SMCA, Los Angeles, CA
Built 1965 ADT: 6,700
INTERSTATE 10
UnknownOver: PICO BLVD, CENTINELA AVE
07-LA-010-R4.24-SMCA, Los Angeles, CA
Built 1965 ADT: 13,180
INTERSTATE 10
UnknownOver: BUNDY DRIVE
07-LA-010-R4.51-LA, Los Angeles, CA
Built 1963 ADT: 46,740
INTERSTATE 10
UnknownOver: BARRINGTON AVE
07-LA-010-R4.82-LA, Los Angeles, CA
Built 1963 ADT: 20,290
NATIONAL BLVD
UnknownOver: ROUTE 10
07-LA-010-R6.31-LA, Los Angeles, CA
Built 1963 ADT: 258,000
OVERLAND AVE
UnknownOver: INTERSTATE 10, RAMPS
07-LA-010-R6.40-LA, Los Angeles, CA
Built 1964 ADT: 258,000
INTERSTATE 10
UnknownOver: SEPULVEDA BLVD
07-LA-010-R5.56-LA, Los Angeles, CA
Built 1963 ADT: 32,000
E10-N405 CONN
UnknownOver: 10, 405, STS, METRO RR
07-LA-010-R5.28-LA, Los Angeles, CA
Built 1963 ADT: 24,160
INTERSTATE 10
UnknownOver: INTERSTATE 405
07-LA-010-R5.43-LA, Los Angeles, CA
Built 1963 ADT: 268,000
S405-E10 CONNECTOR
UnknownOver: W10-S405, I 10,SEPULVEDA
07-LA-405-29.62-LA, Los Angeles, CA
Built 1963 ADT: 237,000
N405-W10 CONNECTOR
UnknownOver: I 405 & I 10,SAWTELLE
07-LA-405-29.43-LA, Los Angeles, CA
Built 1963 ADT: 237,000
INTERSTATE 605
UnknownOver: S605-E10
07-LA-605-R20.09-BWP, Los Angeles, CA
Built 1971 ADT: 23,700
N605-W10
UnknownOver: S605-E10
07-LA-605-R20.09-BWP, Los Angeles, CA
Built 1964 ADT: 23,000
INTERSTATE 605
UnknownOver: INTERSTATE 10
07-LA-605-R20.17-BWP, Los Angeles, CA
Built 1971 ADT: 254,780
INTERSTATE 605
UnknownOver: W10-S605 CONN
07-LA-605-20.27-BWP, Los Angeles, CA
Built 1971 ADT: 30,000
Showing 2,001-2,050 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 |