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
SOUTH REFUGIO ROAD
GoodOver: QUIOTA CREEK
2.0 MI S SANTA YNEZ RIVER, Santa Barbara, CA
Built 2012 Load: 32.4 t ADT: 150
CLIFF DRIVE
GoodOver: HILLSIDE
0.1 M SW OF CASTILLO ST, Santa Barbara, CA
Built 1969 Load: 32.4 t ADT: 24,000
QUINIENTOS STREET
GoodOver: SYCAMORE CREEK
SOLEDAD ST AND CANADA ST, Santa Barbara, CA
Built 2020 Load: 32.4 t ADT: 2,900
ANAPAMU STREET
GoodOver: OLD MISSION CREEK
100 YDS NE OF SAN ANDREAS, Santa Barbara, CA
Built 2019 Load: 32.4 t ADT: 2,100
SOUTH REFUGIO ROAD
GoodOver: QUIOTA CREEK
2.1 MI S SANTA YNEZ RIVER, Santa Barbara, CA
Built 2015 Load: 32.4 t ADT: 150
SOUTH REFUGIO ROAD
GoodOver: QUIOTA CREEK
1.5 MI S SANTA YNEZ RIVER, Santa Barbara, CA
Built 2014 Load: 32.4 t ADT: 76
SOUTH REFUGIO ROAD
GoodOver: QUIOTA CREEK
2.2 MI S SANTA YNEZ RIVER, Santa Barbara, CA
Built 2016 Load: 32.4 t ADT: 150
MONTECITO STREET
GoodOver: SYCAMORE CREEK
E YANONALI STREET, Santa Barbara, CA
Built 2019 Load: 32.4 t ADT: 4,019
SOUTH REFUGIO ROAD
GoodOver: QUIOTA CREEK
2.35 MI S SANTA YNEZ RIVR, Santa Barbara, CA
Built 2018 Load: 32.4 t ADT: 150
SOUTH REFUGIO ROAD
GoodOver: QUIOTA CREEK
3.0 MI S SANTA YNEZ RIVER, Santa Barbara, CA
Built 2019 Load: 32.4 t ADT: 150
SOUTH REFUGIO ROAD
GoodOver: QUIOTA CREEK
2.7 MI S SANTA YNEZ RIVER, Santa Barbara, CA
Built 2020 Load: 32.4 t ADT: 150
STATE ROUTE 152
GoodOver: DEXTER CREEK
04-SCL-152-12.31, Santa Clara, CA
Built 1948 Load: 32.4 t ADT: 19,600
STATE ROUTE 152
GoodOver: JONES CREEK
04-SCL-152-13.80, Santa Clara, CA
Built 1993 Load: 32.4 t ADT: 23,550
STATE ROUTE 152 WB
GoodOver: CEDAR CREEK
04-SCL-152-R28.17, Santa Clara, CA
Built 1989 Load: 32.4 t ADT: 15,375
NB 101-TRIMBLE OFF
GoodOver: GUADALUPE RIVER
04-SCL-101-40.19-SJS, Santa Clara, CA
Built 2005 Load: 32.4 t ADT: 14,200
U.S. HIGHWAY 101
GoodOver: SAN TOMAS AQUINO CREEK
04-SCL-101-42.25-SCL, Santa Clara, CA
Built 1961 Load: 32.4 t ADT: 134,000
STATE ROUTE 17
GoodOver: LOS GATOS CREEK
04-SCL-017-6.55-LGTS, Santa Clara, CA
Built 1955 Load: 32.4 t ADT: 71,400
MCCARTHY-WB 237 ON
GoodOver: COYOTE CREEK
04-SCL-237-8.72-SJS, Santa Clara, CA
Built 2000 Load: 32.4 t ADT: 6,000
INTERSTATE 880
GoodOver: CALTRAIN & UP RR
04-SCL-880-2.38-SJS, Santa Clara, CA
Built 1992 Load: 32.4 t ADT: 165,000
STATE ROUTE 237 WB
GoodOver: SAN TOMAS AQUINO CREEK
04-SCL-237-R5.68-SJS, Santa Clara, CA
Built 1994 Load: 32.4 t ADT: 62,500
STATE ROUTE 237 EB
GoodOver: SAN TOMAS AQUINO CREEK
04-SCL-237-R5.68-SJS, Santa Clara, CA
Built 1994 Load: 32.4 t ADT: 62,500
STATE ROUTE 237
GoodOver: CALABAZAS CREEK
04-SCL-237-M5.28-SUNV, Santa Clara, CA
Built 1994 Load: 32.4 t ADT: 125,000
INTERSTATE 280
GoodOver: PERMANENTE CREEK
04-SCL-280-12.93, Santa Clara, CA
Built 1967 Load: 32.4 t ADT: 117,000
INTERSTATE 280
GoodOver: STEVENS CREEK
04-SCL-280-11.20-CPO, Santa Clara, CA
Built 1967 Load: 32.4 t ADT: 138,000
STATE ROUTE 237 WB
GoodOver: GUADALUPE RIVER
04-SCL-237-R6.41-SJS, Santa Clara, CA
Built 1994 Load: 32.4 t ADT: 62,500
STATE ROUTE 237 EB
GoodOver: GUADALUPE RIVER
04-SCL-237-R6.41-SJS, Santa Clara, CA
Built 2006 Load: 32.4 t ADT: 62,500
INTERSTATE 280
GoodOver: ABANDONED UP RR ROW
04-SCL-280-R0.89-SJS, Santa Clara, CA
Built 1972 Load: 32.4 t ADT: 238,000
INTERSTATE 680
GoodOver: TULARCITOS CREEK
04-SCL-680-M8.38-MPS, Santa Clara, CA
Built 1971 Load: 32.4 t ADT: 130,000
INTERSTATE 680
GoodOver: SILVER CREEK
04-SCL-680-M1.13-SJS, Santa Clara, CA
Built 1974 Load: 32.4 t ADT: 160,000
INTERSTATE 280
GoodOver: ADOBE CREEK
04-SCL-280-15.17-LAH, Santa Clara, CA
Built 1967 Load: 32.4 t ADT: 117,000
US 101,FRONTAGE RD
GoodOver: CALABAZAS CREEK
04-SCL-101-43.32-SUNV, Santa Clara, CA
Built 1960 Load: 32.4 t ADT: 134,000
STATE ROUTE 152
GoodOver: LLAGAS CREEK
04-SCL-152-11.16, Santa Clara, CA
Built 1985 Load: 32.4 t ADT: 22,300
SB US HIGHWAY 101
GoodOver: GOLF CART PATH
04-SCL-101-R21.55-SJS, Santa Clara, CA
Built 1982 Load: 32.4 t ADT: 50,000
INTERSTATE 280
GoodOver: CALABAZAS CREEK
04-SCL-280-7.93-CPO, Santa Clara, CA
Built 1965 Load: 32.4 t ADT: 138,500
SB STATE ROUTE 85
GoodOver: CANOAS CREEK
04-SCL-085-4.28-SJS, Santa Clara, CA
Built 1990 Load: 32.4 t ADT: 51,500
NB STATE ROUTE 85
GoodOver: CANOAS CREEK
04-SCL-085-4.28-SJS, Santa Clara, CA
Built 1990 Load: 32.4 t ADT: 51,500
SB STATE ROUTE 87
GoodOver: ABANDONED UP RR ROW
04-SCL-087-3.88-SJS, Santa Clara, CA
Built 1990 Load: 32.4 t ADT: 65,000
STATE ROUTE 152 WB
GoodOver: PACHECO CREEK
04-SCL-152-R26.30, Santa Clara, CA
Built 1991 Load: 32.4 t ADT: 15,375
STATE ROUTE 152 EB
GoodOver: PACHECO CREEK
04-SCL-152-R26.30, Santa Clara, CA
Built 1991 Load: 32.4 t ADT: 15,375
STATE ROUTE 152 WB
GoodOver: PACHECO CREEK
04-SCL-152-R26.70, Santa Clara, CA
Built 1991 Load: 32.4 t ADT: 15,375
STATE ROUTE 152 EB
GoodOver: PACHECO CREEK
04-SCL-152-R26.70, Santa Clara, CA
Built 1991 Load: 32.4 t ADT: 15,375
STATE ROUTE 152
GoodOver: WEST BRANCH LLAGAS CREEK
04-SCL-152-M10.20-GIL, Santa Clara, CA
Built 1988 Load: 32.4 t ADT: 18,800
SR 85 & CAMDEN AVE
GoodOver: ROSS CREEK
04-SCL-085-8.15-SJS, Santa Clara, CA
Built 1991 Load: 32.4 t ADT: 122,000
STATE ROUTE 85 SB
GoodOver: SCCTA LRT
04-SCL-085-1.22-SJS, Santa Clara, CA
Built 1990 Load: 32.4 t ADT: 40,500
SB STATE ROUTE 85
GoodOver: MANASSAS ROAD
04-SCL-085-0.93-SJS, Santa Clara, CA
Built 1992 Load: 32.4 t ADT: 40,500
NB STATE ROUTE 85
GoodOver: MANASSAS ROAD
04-SCL-085-0.93-SJS, Santa Clara, CA
Built 1992 Load: 32.4 t ADT: 40,500
N&S17-N85 CONNECTR
GoodOver: LOS GATOS CREEK
04-SCL-017-9.42-LGTS, Santa Clara, CA
Built 1994 Load: 32.4 t ADT: 15,100
S17-N85 CONNECTOR
GoodOver: OKA ROAD
04-SCL-017-9.45-LGTS, Santa Clara, CA
Built 1994 Load: 32.4 t ADT: 6,700
INTERSTATE 880
GoodOver: PENITENCIA CREEK
04-SCL-880-10.38-MPS, Santa Clara, CA
Built 2002 Load: 32.4 t ADT: 194,000
SB880 CONN&OFFRAMP
GoodOver: HETCH HETCHY AQUEDUCT
04-SCL-880-7.98-MPS, Santa Clara, CA
Built 2002 Load: 32.4 t ADT: 150,000
Showing 22,951-23,000 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 |