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
MILLER AVENUE
FairOver: CALABAZAS CREEK
0.2 M S. OF STEVENS CREEK, Santa Clara, CA
Built 2001 Load: 32.4 t ADT: 1,000
NORTH ABBOTT AVE
FairOver: PENETENCIA CREEK
JWO HERMINA STREET, Santa Clara, CA
Built 1978 Load: 32.4 t ADT: 480
ESCUELA PARKWAY
FairOver: CALERA CREEK
AT RUSSELL LANE, Santa Clara, CA
Built 1984 Load: 32.4 t ADT: 2,000
MACHADO AVENUE
FairOver: PENETENCIA CREEK
JWO S ABEL STREET, Santa Clara, CA
Built 2006 Load: 32.4 t ADT: 3,200
WATSONVILLE ROAD
FairOver: W. LITTLE LLAGAS CREEK
JWO MONTEREY ROAD, Santa Clara, CA
Built 2013 Load: 32.4 t ADT: 4,200
CAPITOL AVE
FairOver: PENITENCIA CREEK
BTWN BERYSA RD-MABURY RD, Santa Clara, CA
Built 2003 Load: 32.4 t ADT: 11,000
CHURCH AVE
FairOver: LLAGAS CREEK
0.3 MI W SH 101, Santa Clara, CA
Built 1989 Load: 32.4 t ADT: 1,290
MABURY ROAD
FairOver: PENITENCIA CREEK
0.5 MI E 680, Santa Clara, CA
Built 1994 Load: 32.4 t ADT: 3,600
MONTAGUE EXPWY
FairOver: BERRYESSA CREEK
0.3 MI W OF I-680, Santa Clara, CA
Built 2018 Load: 32.4 t ADT: 46,150
COLEMAN AVE
FairOver: ALAMITOS CREEK
EAST OF ALMADEN EXPY, Santa Clara, CA
Built 1981 Load: 32.4 t ADT: 8,360
SKYPORT DRIVE
FairOver: GUADALUPE RIVER
0.5 MI S OF RTE 101, Santa Clara, CA
Built 2001 Load: 32.4 t ADT: 34,700
N. MCCARTHY BLVD
FairOver: COYOTE CREEK
0.1 KM S. OF DIXON LANDIN, Santa Clara, CA
Built 2001 Load: 32.4 t ADT: 15,261
MONTGOM, CAHILL ST
FairOver: VTA VASONA LRT
200 FT W/SO.AUTUMN, Santa Clara, CA
Built 2003 Load: 32.4 t ADT: 5,900
ROSS RD
FairOver: MATADERO CREEK
COLO AVE & VERDE AVE, Santa Clara, CA
Built 1988 Load: 32.4 t ADT: 4,000
GREER RD
FairOver: MATADERO CREEK
COLO AVE & LOMA VERDE AV, Santa Clara, CA
Built 1988 Load: 32.4 t ADT: 2,000
TRAMWAY DR
FairOver: TULARCITOS CREEK
NEAR I-680, Santa Clara, CA
Built 1975 Load: 32.4 t ADT: 1,014
HILLVIEW DR
FairOver: TULARCITOS CREEK
NEAR I-680, Santa Clara, CA
Built 1975 Load: 32.4 t ADT: 3,246
WOLFE ROAD
FairOver: UP RR & CALTRAIN
.3 MI S/O CENTRAL EXPRSWY, Santa Clara, CA
Built 1981 Load: 32.4 t ADT: 29,424
ALMADEN ROAD
FairOver: ALAMITOS CREEK
0.2 MI N HARRY RD, Santa Clara, CA
Built 1984 Load: 32.4 t ADT: 8,840
STATE ROUTE 9
FairOver: FALL CREEK
05-SCR-009-7.01, Santa Cruz, CA
Built 1985 Load: 32.4 t ADT: 21,100
STATE ROUTE 9
FairOver: SAN LORENZO RIVER
05-SCR-009-9.33, Santa Cruz, CA
Built 1936 Load: 32.4 t ADT: 21,100
STATE ROUTE 9
FairOver: SAN LORENZO RIVER
05-SCR-009-9.71, Santa Cruz, CA
Built 1936 Load: 32.4 t ADT: 21,100
STATE ROUTE 1 SB
FairOver: STRUVE SLOUGH
05-SCR-001-R1.59-WAT, Santa Cruz, CA
Built 1990 Load: 32.4 t ADT: 19,500
STATE ROUTE 1 NB
FairOver: STRUVE SLOUGH
05-SCR-001-R1.59-WAT, Santa Cruz, CA
Built 1990 Load: 32.4 t ADT: 19,500
BRANCIFORTE DRIVE
FairOver: BRANCIFORTE CREEK
AT GRANITE DRIVE, Santa Cruz, CA
Built 1995 Load: 32.4 t ADT: 1,000
E ZAYANTE RD
FairOver: ZAYANTE CREEK
2.8 MI N GRAHAM HILL RD, Santa Cruz, CA
Built 1988 Load: 32.4 t ADT: 5,800
MARKET ST
FairOver: BRANCIFORTE CREEK
0.6 MI N WATER ST, Santa Cruz, CA
Built 1956 Load: 32.4 t ADT: 10,000
RIVERSIDE AVE
FairOver: SAN LORENZO RIVER
50' S SAN LORENZO BLVD, Santa Cruz, CA
Built 1990 Load: 32.4 t ADT: 22,577
SOQUEL AVE
FairOver: SAN LORENZO RIVER
0.1 MI W OCEAN ST, Santa Cruz, CA
Built 1999 Load: 32.4 t ADT: 12,788
CASSERLY ROAD
FairOver: GREEN VALLEY CREEK
@ WHEELOCK ROAD, Santa Cruz, CA
Built 1966 Load: 32.4 t ADT: 500
SOQUEL DRIVE
FairOver: SOQUEL CREEK
0.1 MI EAST OF PORTER ST, Santa Cruz, CA
Built 2002 Load: 32.4 t ADT: 20,000
HARKINS SLOUGH RD
FairOver: WATSONVILLE SLOUGH
EAST OF OHLONE PARKWAY, Santa Cruz, CA
Built 2007 Load: 32.4 t ADT: 5,000
HARKINS SLOUGH RD
FairOver: WATSONVILLE SLOUGH
WEST OF OHLONE PARKWAY, Santa Cruz, CA
Built 2008 Load: 32.4 t ADT: 5,000
OHLONE PARKWAY
FairOver: WATSONVILLE SLOUGH
1000' E OF WEST BEACH RD, Santa Cruz, CA
Built 1997 Load: 32.4 t ADT: 5,000
PAULSEN ROAD
FairOver: CASSERLY CREEK
1.5 MI NW GREEN VALLEY RD, Santa Cruz, CA
Built 2006 Load: 32.4 t ADT: 800
EL RANCHO DRIVE
FairOver: HILLSIDE
JUST NORTH OF LA MADRONNA, Santa Cruz, CA
Built 2008 Load: 32.4 t ADT: 5,000
STATE ROUTE 273
FairOver: A.C.I.D. CANAL
02-SHA-273-13.31-RDG, Shasta, CA
Built 1942 Load: 32.4 t ADT: 23,000
STATE ROUTE 273
FairOver: OREGON GULCH
02-SHA-273-13.88-RDG, Shasta, CA
Built 1942 Load: 32.4 t ADT: 23,000
STATE ROUTE 273
FairOver: CANYON CREEK
02-SHA-273-14.31-RDG, Shasta, CA
Built 1942 Load: 32.4 t ADT: 23,000
INTERSTATE 5
FairOver: SLATE CREEK
02-SHA-005-R48.83, Shasta, CA
Built 1991 Load: 32.4 t ADT: 17,100
STATE ROUTE 299
FairOver: LITTLE HATCHET CREEK
02-SHA-299-64.99, Shasta, CA
Built 1955 Load: 32.4 t ADT: 2,550
S5-299 CONNECTOR
FairOver: BOULDER CREEK
02-SHA-005-R17.32-RDG, Shasta, CA
Built 1965 Load: 32.4 t ADT: 27,000
STATE ROUTE 273
FairOver: A.C.I.D. CANAL
02-SHA-273-4.52-AND, Shasta, CA
Built 1948 Load: 32.4 t ADT: 9,800
STATE ROUTE 273
FairOver: BOULDER CREEK
02-SHA-273-19.09, Shasta, CA
Built 1953 Load: 32.4 t ADT: 12,800
INTERSTATE 5
FairOver: W FK STILLWATER CREEK
02-SHA-005-R25.05, Shasta, CA
Built 1955 Load: 32.4 t ADT: 19,500
INTERSTATE 5
FairOver: SACRAMENTO RIVER
02-SHA-005-R6.98-AND, Shasta, CA
Built 2003 Load: 32.4 t ADT: 51,000
INTERSTATE 5 NB
FairOver: HILLSIDE
02-SHA-005-R30.55R, Shasta, CA
Built 1968 Load: 32.4 t ADT: 18,300
INTERSTATE 5 NB
FairOver: HILLSIDE
02-SHA-005-R30.69R, Shasta, CA
Built 1968 Load: 32.4 t ADT: 18,300
INTERSTATE 5 NB
FairOver: HILLSIDE
02-SHA-005-R30.87R, Shasta, CA
Built 1968 Load: 32.4 t ADT: 18,300
INTERSTATE 5 SB
FairOver: O'BRIEN ROAD
02-SHA-005-R32.16L, Shasta, CA
Built 1968 Load: 32.4 t ADT: 9,150
Showing 14,251-14,300 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.