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
STATE ROUTE 142
GoodOver: CARBON CANYON
08-SBD-142-0.18, San Bernardino, CA
Built 1928 Load: 25.9 t ADT: 13,600
EB 10 OFF RAMP
GoodOver: OAK GLEN CREEK
08-SBD-010-R36.90-YUCP, San Bernardino, CA
Built 1965 Load: 25.9 t ADT: 12,377
AIRPORT WAY
GoodOver: NORTH BRANCH WEBER CREEK
JUST NORTH OF SPERRY, San Joaquin, CA
Built 1961 Load: 25.9 t ADT: 12,000
STATE ROUTE 84
GoodOver: SAN GREGORIO CREEK
04-SM-084-7.55, San Mateo, CA
Built 1957 Load: 25.9 t ADT: 1,400
VIA REAL
GoodOver: ARROYO PARIDA
05-SB-101-R5.63, Santa Barbara, CA
Built 1952 Load: 25.9 t ADT: 4,820
CURTNER AVE- SB 87
GoodOver: PEDESTRIAN WALKWAY
04-SCL-087-2.71-SJS, Santa Clara, CA
Built 1992 Load: 25.9 t ADT: 5,000
ABEL STREET
GoodOver: PENITENCIA CREEK
N ENT TO ELMWOOD REHAB CT, Santa Clara, CA
Built 1987 Load: 25.9 t ADT: 1
STATE ROUTE 9
GoodOver: RINCON GULCH
05-SCR-009-1.97, Santa Cruz, CA
Built 1930 Load: 25.9 t ADT: 4,700
MEARS RIDGE ROAD
GoodOver: MEARS CREEK
0.25 MI W I-5 VIA SIMS RD, Shasta, CA
Built 1929 Load: 25.9 t ADT: 50
BUTTE ST
GoodOver: MOFFETT CREEK
0.05 MI WEST OF SH 3, Siskiyou, CA
Built 1988 Load: 25.9 t ADT: 400
INTERSTATE 80 EB
GoodOver: HORSE CREEK
04-SOL-080-29.25-VAC, Solano, CA
Built 1946 Load: 25.9 t ADT: 61,500
INTERSTATE 5 NB
GoodOver: ORESTIMBA CREEK
10-STA-005-5.73, Stanislaus, CA
Built 1967 Load: 25.9 t ADT: 17,500
RATTLESNAKE RIDGE
GoodOver: RATTLESNAKE CREEK
HELLS GATE CAMPGROUND, Trinity, CA
Built 1965 Load: 25.9 t ADT: 50
DINELEY RD
GoodOver: MIDDLE FORK KAWEAH RIVER
0.1 MI N OF SR 198, Tulare, CA
Built 1957 Load: 25.9 t ADT: 450
STATE ROUTE 49
GoodOver: WOODS CREEK
10-TUO-049-13.52, Tuolumne, CA
Built 1941 Load: 25.9 t ADT: 19,900
STATE ROUTE 23
GoodOver: JANSS ROAD
07-VEN-023-R5.06-THOK, Ventura, CA
Built 1970 Load: 25.9 t ADT: 94,000
STATE ROUTE 23
GoodOver: OLSEN ROAD
07-VEN-023-R8.21-THOK, Ventura, CA
Built 1970 Load: 25.9 t ADT: 89,000
STATE ROUTE 118
GoodOver: PRINCETON AVENUE
07-VEN-118-T19.12, Ventura, CA
Built 1993 Load: 25.9 t ADT: 41,500
INTERSTATE 980
GoodOver: 30TH STREET
04-ALA-980-1.68-OAK, Alameda, CA
Built 1969 Load: 26.2 t ADT: 57,500
INTERSTATE 980
GoodOver: 30TH STREET
04-ALA-980-1.68-OAK, Alameda, CA
Built 1969 Load: 26.2 t ADT: 57,500
ST MARY'S ROAD
GoodOver: LAS TRAMPAS CREEK
1.1 MI N RHEEM BLVD, Contra Costa, CA
Built 1975 Load: 26.2 t ADT: 10,570
VINEYARDS PKWY
GoodOver: MARSH CREEK
0.1 MI W/O MARSH CREEK RD, Contra Costa, CA
Built 2007 Load: 26.2 t ADT: 302
ORINDA BALLFLD LN
GoodOver: QUERCUS CREEK
.1 MI E OF WILDER RD, Contra Costa, CA
Built 2011 Load: 26.2 t ADT: 300
SAN BENITO-N41 ON
GoodOver: O STREET
06-FRE-041-R22.95-FRE, Fresno, CA
Built 1974 Load: 26.2 t ADT: 9,268
WINDING ROAD
GoodOver: WESTFALL CREEK
07S05-17.7, Fresno, CA
Built 1968 Load: 26.2 t ADT: 50
STATE ROUTE 36
GoodOver: HELY CREEK
01-HUM-036-11.46, Humboldt, CA
Built 1927 Load: 26.2 t ADT: 1,650
STATE ROUTE 58
GoodOver: BRANCH TEHACHAPI CREEK
09-KER-058-R88.57, Kern, CA
Built 1947 Load: 26.2 t ADT: 42,400
INTERSTATE 405
GoodOver: LOS CERRITOS CHANNEL
07-LA-405-0.78-LBCH, Los Angeles, CA
Built 1963 Load: 26.2 t ADT: 255,000
INTERSTATE 405
GoodOver: PARTHENIA STREET
07-LA-405-44.24-LA, Los Angeles, CA
Built 1963 Load: 26.2 t ADT: 216,000
STATE ROUTE 91
GoodOver: ARDMORE AVE
07-LA-091-R15.39-BFL, Los Angeles, CA
Built 1968 Load: 26.2 t ADT: 242,000
STATE ROUTE 91
GoodOver: WALNUT AVE
07-LA-091-R12.84-LBCH, Los Angeles, CA
Built 1970 Load: 26.2 t ADT: 260,000
PAXTON ST ON RAMP
GoodOver: PAXTON STREET
07-LA-118-R12.33-LA, Los Angeles, CA
Built 1976 Load: 26.2 t ADT: 1,268
WOODMAN AVE
GoodOver: LOS ANGELES RIVER
0.1 MI SOUTH OF US-101, Los Angeles, CA
Built 1952 Load: 26.2 t ADT: 31,941
EUCLID AVE
GoodOver: SAWPIT WASH
0.1MI E/O CALIFORNIA AVE, Los Angeles, CA
Built 1961 Load: 26.2 t ADT: 3,653
STATE ROUTE 99 SB
GoodOver: DRY CREEK
06-MAD-099-R16.10, Madera, CA
Built 1974 Load: 26.2 t ADT: 28,000
FOREST ROAD 360
GoodOver: NORTH FK OF S FK NOYO
1 MI N ROAD 300, Mendocino, CA
Built 1958 Load: 26.2 t ADT: 30
FOREST ROAD 300
GoodOver: NORTH FK OF SOUT FK NOYO
NE/O SAN FELIPE RD, Mendocino, CA
Built 1958 Load: 26.2 t ADT: 50
SNELLING ROAD
GoodOver: MERCED RIVER
0.5 MI SOUTH OF SR 59, Merced, CA
Built 1969 Load: 26.2 t ADT: 1,500
TWIN LAKES CAMP RD
GoodOver: ROBINSON CREEK
10.1 MI W OF US 395, Mono, CA
Built 1984 Load: 26.2 t ADT: 100
STATE ROUTE 1
GoodOver: HILLSIDE
05-MON-001-56.51, Monterey, CA
Built 1986 Load: 26.2 t ADT: 4,300
STATE ROUTE 99
GoodOver: WHITEHOUSE CREEK
03-SAC-099-14.63, Sacramento, CA
Built 1956 Load: 26.2 t ADT: 120,000
CHRISTENSEN RD
GoodOver: DEADMAN GULCH
0.9 MI S TWIN CITIES RD, Sacramento, CA
Built 1986 Load: 26.2 t ADT: 602
PATTON AVENUE
GoodOver: CRIPPLE CREEK
0.1 MI S TWIN OAKS AVE, Sacramento, CA
Built 1960 Load: 26.2 t ADT: 700
ELVERTA RD
GoodOver: NORTH CHANNEL DRY CREEK
BTWN 28TH ST GBSN RN PK R, Sacramento, CA
Built 1960 Load: 26.2 t ADT: 5,200
INTERSTATE 40
GoodOver: ICE HOUSE DITCH
08-SBD-040-144.38-NED, San Bernardino, CA
Built 1967 Load: 26.2 t ADT: 7,200
CAJON BLVD
GoodOver: BRUSH CREEK
1.4 MI N SWARTOUT CYN RD, San Bernardino, CA
Built 1930 Load: 26.2 t ADT: 1,166
MOUNTAIN SPRINGS R
GoodOver: BUCKHORN WASH
0.1 MI NW SLVR LK PKWY, San Bernardino, CA
Built 1972 Load: 26.2 t ADT: 1,583
BEEKLEY ROAD
GoodOver: CALIFORNIA AQUEDUCT
0.6 MI S OF PALMDALE RD, San Bernardino, CA
Built 1971 Load: 26.2 t ADT: 44
BAYSHORE BLVD
GoodOver: HILLSIDE
BAYSHORE AND 101, San Francisco, CA
Built 1970 Load: 26.2 t ADT: 1,000
JACK TONE ROAD
GoodOver: PADDY CREEK NORTH
NEAR KETTLEMAN LANE, San Joaquin, CA
Built 1962 Load: 26.2 t ADT: 2,471
Showing 19,051-19,100 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.