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

Total Bridges

27,040

Public highway bridges in California

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)

California32.45931952662722%34.67455621301775%GoodFairPoorStructurally Deficient
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
Structure
Progressive
Burden @ $100K
$26,753

34

New Jersey

4.59% top marginal rate
Structure
Progressive
Burden @ $100K
$6,796
Selected

06

California

4.60% top marginal rate
Structure
Progressive
Burden @ $100K
$27,040

05

Arkansas

4.71% top marginal rate
Structure
Progressive
Burden @ $100K
$5,544

53

Washington

4.81% top marginal rate
Structure
Progressive
Burden @ $100K
$8,808

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

Poor

Over: FALL RIVER

0.5 MI N OF MCARTHUR RD, Shasta, CA

Built 1950 Load: 2.7 t ADT: 50

ORESTIMBA ROAD

Poor

Over: CCID MAIN CANAL

0.1 MI E DRAPER RD, Stanislaus, CA

Built 1919 Load: 2.9 t ADT: 684

CLARK STREET

Poor

Over: 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 Deficient

Over: MIDDLE FORK FEATHER RIV

0.2 MI S SH 70, Plumas, CA

Built 1954 Load: 3.2 t ADT: 10,046

AVENUE 10

Poor

Over: COTTONWOOD CREEK

JUST E/O ROAD 23, Madera, CA

Built 1950 Load: 3.6 t ADT: 50

S BISHOP AVE

Poor

Over: CRESCENT DITCH

0.64 MI S/O MT WHITNEY AV, Fresno, CA

Built 1950 Load: 3.9 t ADT: 125

All Bridges in California

W56-RANCHO PENSQTS

Unknown

Over: RANCHO PENASQUITOS BLVD

11-SD-056-7.80-SD, San Diego, CA

Built 1993 ADT: 31,220

SR 56 WB

Unknown

Over: RANCHO PENASQUITOS BLVD

11-SD-056-7.80-SD, San Diego, CA

Built 1993 ADT: 31,220

SR 56 EB

Unknown

Over: RANCHO PENASQUITOS BLVD

11-SD-056-7.80-SD, San Diego, CA

Built 1993 ADT: 31,220

STATE ROUTE 52 WB

Unknown

Over: MAST BOULEVARD

11-SD-052-13.30-SD, San Diego, CA

Built 1993 ADT: 27,000

STATE ROUTE 52 EB

Unknown

Over: MAST BOULEVARD

11-SD-052-13.30-SD, San Diego, CA

Built 1993 ADT: 27,000

PEDESTRIAN WALKWAY

Unknown

Over: INTERSTATE 15 & RAMPS

11-SD-015-M5.30-SD, San Diego, CA

Built 2000 ADT: 185,000

PEDESTRIAN WALKWAY

Unknown

Over: INTERSTATE 15 & RAMPS

11-SD-015-M4.38-SD, San Diego, CA

Built 2000 ADT: 171,000

STATE ROUTE 76 WB

Unknown

Over: EL CAMINO REAL

11-SD-076-R3.41-OCN, San Diego, CA

Built 1999 ADT: 5,000

STATE ROUTE 76 WB

Unknown

Over: MISSION AVE

11-SD-076-R4.55-OCN, San Diego, CA

Built 1999 ADT: 5,000

E52-S125 CONNECTOR

Unknown

Over: PROSPECT AVENUE

11-SD-052-15.05-SNT, San Diego, CA

Built 1998 ADT: 4,000

STATE ROUTE 125 SB

Unknown

Over: PROSPECT AVENUE

11-SD-125-21.92-SNT, San Diego, CA

Built 1998 ADT: 5,390

STATE ROUTE 125 NB

Unknown

Over: PROSPECT AVENUE

11-SD-125-21.92-SNT, San Diego, CA

Built 1998 ADT: 5,390

N125-W52 CONNECTOR

Unknown

Over: SR 125, MISSION GORGE RD

11-SD-125-22.09-SNT, San Diego, CA

Built 1998 ADT: 39,000

E52-S125 CONNECTOR

Unknown

Over: MISSION GORGE RD

11-SD-052-14.59-SNT, San Diego, CA

Built 1998 ADT: 43,000

INTERSTATE 5 SB

Unknown

Over: CARMEL VALLEY ROAD

11-SD-005-R32.77-SD, San Diego, CA

Built 2007 ADT: 12,700

VISTA VILLAGE DR

Unknown

Over: STATE ROUTE 78

11-SD-078-6.19-VSTA, San Diego, CA

Built 1998 ADT: 150,000

TWIN OAK VALLEY RD

Unknown

Over: STATE ROUTE 78

11-SD-078-12.91-ESD, San Diego, CA

Built 1999 ADT: 156,000

STATE ROUTE 125 SB

Unknown

Over: BLOSSOM LANE

11-SD-125-11.35-LMGR, San Diego, CA

Built 2002 ADT: 3,600

STATE ROUTE 125 NB

Unknown

Over: BLOSSOM LANE

11-SD-125-11.35-LMGR, San Diego, CA

Built 2002 ADT: 3,600

STATE ROUTE 125

Unknown

Over: JAMACHA ROAD

11-SD-125-10.65-LMGR, San Diego, CA

Built 2002 ADT: 21,900

STATE ROUTE 125

Unknown

Over: JAMACHA ROAD

11-SD-125-10.65-LMGR, San Diego, CA

Built 2002 ADT: 21,900

TROY STREET

Unknown

Over: STATE ROUTE 125

11-SD-125-12.10-LMGR, San Diego, CA

Built 2002 ADT: 133,000

S125 & 54 ON RAMP

Unknown

Over: ELKELTON PLACE

11-SD-125-9.67, San Diego, CA

Built 2002 ADT: 5,100

ROUTE 125

Unknown

Over: ELKELTON PLACE

11-SD-125-9.66, San Diego, CA

Built 2002 ADT: 5,100

ROUTE 125

Unknown

Over: ELKELTON PLACE

11-SD-125-9.66, San Diego, CA

Built 2002 ADT: 5,100

N125-PARADISE VAL

Unknown

Over: ELKELTON PLACE-N125 RAMP

11-SD-125-9.77, San Diego, CA

Built 2002 ADT: 8,800

PARADISE VAL- S125

Unknown

Over: N125-ELKELTON PL RAMP

11-SD-125-9.76, San Diego, CA

Built 2002 ADT: 9,900

PARADISE VALLEY RD

Unknown

Over: STATE ROUTE 125

11-SD-125-9.79, San Diego, CA

Built 2002 ADT: 111,700

AMAYA DRIVE

Unknown

Over: STATE ROUTE 125

11-SD-125-18.66-LMSA, San Diego, CA

Built 2001 ADT: 39,000

DALLAS STREET

Unknown

Over: STATE ROUTE 125

11-SD-125-18.94-LMSA, San Diego, CA

Built 2001 ADT: 39,000

STATE ROUTE 125 SB

Unknown

Over: CHATHAM STREET

11-SD-125-19.40-ECJ, San Diego, CA

Built 2001 ADT: 700

ROUTE 125

Unknown

Over: CHATHAM STREET

11-SD-125-19.40-SD, San Diego, CA

Built 2001 ADT: 5,000

WARING ROAD

Unknown

Over: INTERSTATE 8 WB

11-SD-008-7.08-SD, San Diego, CA

Built 1992 ADT: 115,500

W8-S15 CONNECTOR

Unknown

Over: FAIRMOUNT AVE-W8 ON-RAMP

11-SD-008-5.76-SD, San Diego, CA

Built 2005 ADT: 25,000

I 905 WB TRUCKS

Unknown

Over: VIA DE LA AMISTAD

11-SD-905-R11.70, San Diego, CA

Built 1999 ADT: 100

STATE ROUTE 125

Unknown

Over: NAVAJO ROAD

11-SD-125-19.84-ECJ, San Diego, CA

Built 2003 ADT: 32,000

STATE ROUTE 125

Unknown

Over: NAVAJO ROAD

11-SD-125-19.84-ECJ, San Diego, CA

Built 2003 ADT: 32,000

GROSSMONT COLLEGE

Unknown

Over: STATE ROUTE 125

11-SD-125-20.40-ECJ, San Diego, CA

Built 2003 ADT: 39,000

NOBEL DRIVE

Unknown

Over: INTERSTATE 805 & RAMPS

11-SD-805-25.40-SD, San Diego, CA

Built 2002 ADT: 187,000

E94-S125 CONNECTOR

Unknown

Over: BROADWAY

11-SD-094-R9.58R-LMGR, San Diego, CA

Built 2003 ADT: 14,000

N125-W94 CONNECTOR

Unknown

Over: SR 125 & SR 94 & CONNS

11-SD-125-13.22, San Diego, CA

Built 2003 ADT: 8,400

S125

Unknown

Over: SR-94, CONNS & LOCAL RDS

11-SD-125-13.22, San Diego, CA

Built 2003 ADT: 28,200

STATE ROUTE 94 EB

Unknown

Over: STATE ROUTE 125 NB

11-SD-094-R9.74R-LMGR, San Diego, CA

Built 2003 ADT: 82,000

125N CONNECTOR

Unknown

Over: BROADWAY & CONNS

11-SD-125-13.22, San Diego, CA

Built 2003 ADT: 27,500

N125 TO E94

Unknown

Over: SWEETWATER RD & BROADWAY

11-SD-125-13.22, San Diego, CA

Built 2003 ADT: 28,200

STATE ROUTE 94 WB

Unknown

Over: SPRING ST-S125 ON RAMP

11-SD-094-R10.20L-LMSA, San Diego, CA

Built 2003 ADT: 6,500

S5-S805 CONNECTOR

Unknown

Over: I-5, I-805 & LOCAL ROADS

11-SD-005-R30.50L-SD, San Diego, CA

Built 2005 ADT: 74,000

N805-N5 CONNECTOR

Unknown

Over: SORRENTO VALLEY BLVD

11-SD-805-28.30-SD, San Diego, CA

Built 2006 ADT: 17,572

CARMEL MOUNTAIN RD

Unknown

Over: STATE ROUTE 56

11-SD-056-6.56-SD, San Diego, CA

Built 2004 ADT: 54,000

MTDB LRT & SDIV RR

Unknown

Over: STATE ROUTE 94

11-SD-094-9.22, San Diego, CA

Built 1995 ADT: 147,000

Showing 5,651-5,700 of 27,040 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.