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

STATE ROUTE 99 SB

Unknown

Over: FULKERTH ROAD

10-STA-099-R4.54-TUR, Stanislaus, CA

Built 1973 ADT: 18,400

STATE ROUTE 99 NB

Unknown

Over: FULKERTH ROAD

10-STA-099-R4.54-TUR, Stanislaus, CA

Built 1973 ADT: 18,400

STATE ROUTE 99 SB

Unknown

Over: MONTE VISTA AVE

10-STA-099-R5.64-TUR, Stanislaus, CA

Built 1973 ADT: 16,200

STATE ROUTE 99 NB

Unknown

Over: MONTE VISTA AVE

10-STA-099-R5.64-TUR, Stanislaus, CA

Built 1973 ADT: 16,200

STATE ROUTE 99 SB

Unknown

Over: TAYLOR RD

10-STA-099-R6.75-TUR, Stanislaus, CA

Built 1973 ADT: 6,600

STATE ROUTE 99 NB

Unknown

Over: TAYLOR RD

10-STA-099-R6.75-TUR, Stanislaus, CA

Built 1973 ADT: 6,600

CANAL DR

Unknown

Over: STATE ROUTE 99

10-STA-099-R4.01-TUR, Stanislaus, CA

Built 1973 ADT: 79,000

STANDIFORD AVE

Unknown

Over: STATE ROUTE 99

10-STA-099-R20.22-MOD, Stanislaus, CA

Built 1976 ADT: 121,000

FAITH HOME ROAD

Unknown

Over: ST RTE 99,ROHDE RD,UP RR

10-STA-099-8.69, Stanislaus, CA

Built 1994 ADT: 96,000

PEDESTRIAN WALKWAY

Unknown

Over: ROUTE 132 (9TH ST)

10-STA-132-L15.00-MOD, Stanislaus, CA

Built 1986 ADT: 20,000

PELANDALE AVE

Unknown

Over: ROUTE 99 ONRAMP OFFRAMPS

10-STA-099-R21.69-MOD, Stanislaus, CA

Built 2015 ADT: 109,000

SB ROUTE 99 ONRAMP

Unknown

Over: SB ROUTE 99 OFFRAMP

10-STA-099-R21.76-MOD, Stanislaus, CA

Built 2016 ADT: 18,000

ROUTE 219

Unknown

Over: ROUTE 99

10-STA-219-0.30, Stanislaus, CA

Built 2016 ADT: 109,000

WHITMORE AVENUE

Unknown

Over: ST RTE 99, RAMP, & UP RR

10-STA-099-R11.92, Stanislaus, CA

Built 2011 ADT: 101,000

N CARPENTER ROAD

Unknown

Over: STATE ROUTE 132

10-STA-132-13.40-MOD, Stanislaus, CA

Built 2022 ADT: 11,700

STATE ROUTE 132 WB

Unknown

Over: EMERALD AVE

10-STA-132-R13.93-MOD, Stanislaus, CA

Built 2022 ADT: 3,000

STATE ROUTE 132 EB

Unknown

Over: EMERALD AVE

10-STA-132-R13.93-MOD, Stanislaus, CA

Built 2022 ADT: 3,000

ROSEMORE AVE

Unknown

Over: STATE ROUTE 132

10-STA-132-12.89-MOD, Stanislaus, CA

Built 2022 ADT: 13,200

STATE ROUTE 132

Unknown

Over: STATE ROUTE 99, RAMP

10-STA-132-14.67-MOD, Stanislaus, CA

Built 2022 ADT: 145,000

MODESTO SIGN

Unknown

Over: I ST ARCH ENTRANCE

NEAR 9TH ST, Stanislaus, CA

Built 1912 ADT: 11,482

GOLDEN STATE BLVD

Unknown

Over: UP RR, GOLDEN STATE

0.1 MI N MERCED CO LINE, Stanislaus, CA

Built 1938 ADT: 1,200

PEDESTRIAN POC

Unknown

Over: CLAUS ROAD

JUST S/O CREEKWOOD DR, Stanislaus, CA

Built 1991 ADT: 15,000

KANSAS AVE

Unknown

Over: 8TH ST, 9TH ST, RR,CANAL

0.5 MI NW SR 132, Stanislaus, CA

Built 2002 ADT: 5,500

PEDESTRIAN

Unknown

Over: SYLVAN AVE

0.03 MI E/O MILBROOK AVE, Stanislaus, CA

Built 2008 ADT: 9,500

STATE ROUTE 20

Unknown

Over: FEATHER RIVER,K ST,UP RR

03-SUT-020-17.00-YC, Sutter, CA

Built 1947 ADT: 1,300

STATE ROUTE 20

Unknown

Over: SUTTER STREET

03-SUT-020-16.84-YC, Sutter, CA

Built 1946 ADT: 1,500

PEASE ROAD

Unknown

Over: STATE ROUTE 99

03-SUT-099-R32.64, Sutter, CA

Built 1970 ADT: 19,400

EAGER ROAD

Unknown

Over: STATE ROUTE 99

03-SUT-099-R33.95, Sutter, CA

Built 1970 ADT: 17,000

STATE ROUTE 99 SB

Unknown

Over: BUTTE HOUSE ROAD

03-SUT-099-R30.88-YC, Sutter, CA

Built 1970 ADT: 1,000

STATE ROUTE 99 NB

Unknown

Over: BUTTE HOUSE ROAD

03-SUT-099-R30.88-YC, Sutter, CA

Built 1970 ADT: 1,000

QUEENS AVE

Unknown

Over: STATE ROUTE 99

03-SUT-099-R31.31-YC, Sutter, CA

Built 1970 ADT: 29,500

STATE ROUTE 99 SB

Unknown

Over: HOWSLEY ROAD

03-SUT-099-5.81, Sutter, CA

Built 1990 ADT: 200

STATE ROUTE 99 NB

Unknown

Over: HOWSLEY ROAD

03-SUT-099-5.81, Sutter, CA

Built 1990 ADT: 200

S70-S99 CONNECTOR

Unknown

Over: STATE ROUTE 99

03-SUT-070-R0.06, Sutter, CA

Built 1990 ADT: 37,500

CORNELIUS AVENUE

Unknown

Over: STATE ROUTE 70

03-SUT-070-5.09, Sutter, CA

Built 2011 ADT: 19,900

MARCUM ROAD

Unknown

Over: STATE ROUTE 70

03-SUT-070-2.99, Sutter, CA

Built 2011 ADT: 18,000

NICOLAUS AVENUE

Unknown

Over: STATE ROUTE 70

03-SUT-070-4.00, Sutter, CA

Built 2011 ADT: 19,900

WEST RIEGO ROAD

Unknown

Over: STATE ROUTE 99

03-SUT-099-0.98, Sutter, CA

Built 2014 ADT: 37,500

STATE ROUTE 113

Unknown

Over: STATE ROUTE 99

03-SUT-113-16.35, Sutter, CA

Built 2014 ADT: 15,800

UP RR & BNSF RY

Unknown

Over: RIO OSO ROAD

0.6 MI E OF SH 70, Sutter, CA

Built 1927 ADT: 1,366

UP RR & AMTRAK

Unknown

Over: INTERSTATE 5

02-TEH-005-R24.90-RBL, Tehama, CA

Built 1964 ADT: 31,000

CHARD AVE

Unknown

Over: INTERSTATE 5

02-TEH-005-R18.78, Tehama, CA

Built 1965 ADT: 28,000

SR 36

Unknown

Over: INTERSTATE 5

02-TEH-036-41.82-RBL, Tehama, CA

Built 1965 ADT: 31,000

MAIN ST

Unknown

Over: INTERSTATE 5

02-TEH-036-L39.92, Tehama, CA

Built 1965 ADT: 36,500

TEHAMA AVE

Unknown

Over: INTERSTATE 5

02-TEH-005-R15.98, Tehama, CA

Built 1965 ADT: 29,000

DIAMOND AVE

Unknown

Over: INTERSTATE 5

02-TEH-005-R24.94-RBL, Tehama, CA

Built 1964 ADT: 31,000

HOOKER CREEK ROAD

Unknown

Over: INTERSTATE 5

02-TEH-005-36.37, Tehama, CA

Built 1963 ADT: 36,500

SUNSET HILLS DRIVE

Unknown

Over: INTERSTATE 5

02-TEH-005-38.72, Tehama, CA

Built 1963 ADT: 36,000

JELLYS FERRY ROAD

Unknown

Over: INTERSTATE 5

02-TEH-005-32.24, Tehama, CA

Built 1963 ADT: 36,500

WILCOX GOLF ROAD

Unknown

Over: INTERSTATE 5

02-TEH-005-31.04, Tehama, CA

Built 1963 ADT: 39,000

Showing 7,301-7,350 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.