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
UNIVERSAL TERRACE
UnknownOver: U.S. HIGHWAY 101
07-LA-101-10.56-LA, Los Angeles, CA
Built 2003 ADT: 248,000
MILLER ST UTILITY
UnknownOver: INTERSTATE 210
07-LA-210-R47.81-LVN, Los Angeles, CA
Built 2001 ADT: 179,000
WB 60 ALT LANES
UnknownOver: BREA CANYON RD & RAMP
07-LA-060-R22.97-DMBR, Los Angeles, CA
Built 2007 ADT: 12,300
N57-E60&W60-S57HOV
UnknownOver: SR 60, GOLDEN SPRINGS DR
07-LA-057-R4.46L, Los Angeles, CA
Built 2007 ADT: 17,800
VALENCIA BOULEVARD
UnknownOver: INTERSTATE 5
07-LA-005-R52.47-SCTA, Los Angeles, CA
Built 2001 ADT: 168,002
INTERSTATE 5
UnknownOver: MAGIC MOUNTAIN PARKWAY
07-LA-005-R53.33-SCTA, Los Angeles, CA
Built 2005 ADT: 20,885
STATE ROUTE 126
UnknownOver: INTERSTATE 5
07-LA-126-R5.84-SCTA, Los Angeles, CA
Built 2005 ADT: 129,000
STATE ROUTE 126
UnknownOver: COMMERCE CITY DRIVE
07-LA-126-R4.88, Los Angeles, CA
Built 2016 ADT: 10,000
PEDESTRIANS
UnknownOver: INTERSTATE 210
07-LA-210-R29.35, Los Angeles, CA
Built 2002 ADT: 294,000
HNTINGTN DR-E&W210
UnknownOver: CENTRAL AVENUE
07-LA-210-R36.39-DRT, Los Angeles, CA
Built 1968 ADT: 1,500
INTERSTATE 405 NB
UnknownOver: GREENLEAF ST
07-LA-405-39.05-LA, Los Angeles, CA
Built 2008 ADT: 12,000
I-5-SR14
UnknownOver: NB 5, 5 TRUCK & RAMP
07-LA-005-R45.26-LA, Los Angeles, CA
Built 2014 ADT: 15,747
RAIL
UnknownOver: US101
07-LA-101-1.07, Los Angeles, CA
Built 2007 ADT: 140,000
I-5/SR170
UnknownOver: I-5
07-LA-170-R20.34-LA, Los Angeles, CA
Built 2015 ADT: 183,000
5-170
UnknownOver: I-5
07-LA-005-36.44-LA, Los Angeles, CA
Built 2015 ADT: 145,357
PALMS BLVD
UnknownOver: ROUTE 405
07-LA-405-28.51-LA, Los Angeles, CA
Built 2009 ADT: 278,000
MTA RAIL
UnknownOver: INTERSTATE 710
07-LA-710-24.47, Los Angeles, CA
Built 2008 ADT: 182,000
ROUTE 710
UnknownOver: LONG BEACH/TERMINAL ISL
07-LA-710-3.60, Los Angeles, CA
Built 2020 ADT: 5,000
AMAR RD
UnknownOver: INTERSTATE 10
07-LA-010-31.54-BWP, Los Angeles, CA
Built 2012 ADT: 230,000
CARMENITA ROAD
UnknownOver: INTERSTATE 5
07-LA-005-2.42-NRW, Los Angeles, CA
Built 2016 ADT: 171,000
MISSION BLVD
UnknownOver: SR 71
07-LA-071-1.60, Los Angeles, CA
Built 2011 ADT: 69,500
NB 405 ONRAMP
UnknownOver: SEPULVEDA, WILSHIRE BLVD
07-LA-405-31.46-LA, Los Angeles, CA
Built 2013 ADT: 25,000
NB 405 OFFRAMP
UnknownOver: SOUTH SEPULVEDA BLVD
07-LA-405-31.38-LA, Los Angeles, CA
Built 2013 ADT: 25,000
BESS POC
UnknownOver: INTERSTATE 10
07-LA-010-31.72-BWP, Los Angeles, CA
Built 2013 ADT: 230,000
BALDWIN PARK BLVD
UnknownOver: INTERSTATE 10
07-LA-010-32.22-BWP, Los Angeles, CA
Built 2012 ADT: 224,000
N605-W10
UnknownOver: INTERSTATE 10
07-LA-605-R20.17-BWP, Los Angeles, CA
Built 2013 ADT: 233,000
STATE ROUTE 47
UnknownOver: CERRITOS CHANNEL
07-LA-047-3.58-LBCH, Los Angeles, CA
Built 2022 ADT: 4,755
NB 110-9TH ST RAMP
UnknownOver: 9TH ST N/B ON-RAMP
07-LA-110-22.30-LA, Los Angeles, CA
Built 2012 ADT: 2,000
ALONDRA BLVD
UnknownOver: INTERSTATE 5
07-LA-005-1.67-SFSP, Los Angeles, CA
Built 2015 ADT: 171,000
SHOEMAKER AVE
UnknownOver: I 5, FIRESTONE BLVD
07-LA-005-3.04-NRW, Los Angeles, CA
Built 2014 ADT: 6,000
INTERSTATE 5
UnknownOver: ROSECRANS AVENUE
07-LA-005-3.44-NRW, Los Angeles, CA
Built 2016 ADT: 28,000
INTERSTATE 5
UnknownOver: BLOOMFIELD AVENUE
07-LA-005-3.68-NRW, Los Angeles, CA
Built 2016 ADT: 18,000
I-5 SB OFFRAMP
UnknownOver: BLOOMFIELD AVENUE
07-LA-005-3.63-NRW, Los Angeles, CA
Built 2015 ADT: 18,000
PEDESTRIAN PATH
UnknownOver: INTERSTATE 5
07-LA-005-3.97-NRW, Los Angeles, CA
Built 2016 ADT: 175,000
VALLEY VIEW AVE
UnknownOver: INTERSTATE 5
07-LA-005-1.21-LMRD, Los Angeles, CA
Built 2022 ADT: 202,010
HASLEY CANYON ROAD
UnknownOver: ROUTE 5
07-LA-005-R56.60, Los Angeles, CA
Built 2010 ADT: 134,090
S605-E10 CONN
UnknownOver: INTERSTATE 10
07-LA-605-20.36-BWP, Los Angeles, CA
Built 2015 ADT: 30,000
INT. 10 OFF-RAMP
UnknownOver: CAMERON AVE
07-LA-010-34.29-WCOV, Los Angeles, CA
Built 2017 ADT: 13,000
HARRY BRIDGES BLVD
UnknownOver: JOHN S GIBSON BLVD
07-LA-110-2.68-LA, Los Angeles, CA
Built 2016 ADT: 2,700
INT. 10 ON-RAMP
UnknownOver: VINCENT AVE
07-LA-010-35.40-WCOV, Los Angeles, CA
Built 2017 ADT: 14,000
S405-WILSHIRE OFF
UnknownOver: WILSHIRE BLVD
07-LA-405-31.54-LA, Los Angeles, CA
Built 2013 ADT: 80,000
S405-WILSHIRE OFF
UnknownOver: WILSHIRE-S405 ON
07-LA-405-31.57-LA, Los Angeles, CA
Built 2013 ADT: 16,700
SKIRBALL CENTER DR
UnknownOver: ROUTE 405
07-LA-405-36.71-LA, Los Angeles, CA
Built 2013 ADT: 288,000
MULHOLLAND DR
UnknownOver: ROUTE 405
07-LA-405-37.03-LA, Los Angeles, CA
Built 2013 ADT: 276,000
SUNSET BLVD
UnknownOver: ROUTE 405, N SEPULVEDA
07-LA-405-32.99-LA, Los Angeles, CA
Built 2013 ADT: 15,000
BURBANK BLVD
UnknownOver: INTERSTATE 5
07-LA-005-29.80-BRB, Los Angeles, CA
Built 2022 ADT: 239,000
ROUTE 5
UnknownOver: SAN ANTONIO DR
07-LA-005-4.40-NRW, Los Angeles, CA
Built 2020 ADT: 10,000
ROUTE 5
UnknownOver: PIONEER BLVD
07-LA-005-5.12-NRW, Los Angeles, CA
Built 2020 ADT: 3,500
FLORENCE AVE
UnknownOver: INTERSTATE 5
07-LA-005-6.38-DNY, Los Angeles, CA
Built 2020 ADT: 195,000
SB 710 ONRAMP
UnknownOver: S ATLANTIC BLVD
07-LA-710-21.91-BELL, Los Angeles, CA
Built 2013 ADT: 19,000
Showing 2,751-2,800 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 |