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
KING ROAD
GoodOver: ANTELOPE CREEK
0.15 MI E SIERRA COLL RD, Placer, CA
Built 1970 Load: 39.2 t ADT: 2,308
SUNSET BLVD
GoodOver: UP RR, BNSF RY, & AMTRAK
NEAR PACIFIC ST., Placer, CA
Built 1961 Load: 39.2 t ADT: 30,058
STATE ROUTE 111 NB
GoodOver: WINDY POINT CANYON
08-RIV-111-57.36, Riverside, CA
Built 1948 Load: 39.2 t ADT: 16,000
STATE ROUTE 111
GoodOver: OAK DITCH
08-RIV-111-11.03, Riverside, CA
Built 1951 Load: 39.2 t ADT: 2,700
INTERSTATE 15 NB
GoodOver: INDIAN TRUCK TRAIL
08-RIV-015-30.40, Riverside, CA
Built 1979 Load: 39.2 t ADT: 60,500
INTERSTATE 15 NB
GoodOver: GAVILAN WASH
08-RIV-015-25.55, Riverside, CA
Built 1980 Load: 39.2 t ADT: 61,000
ELKHORN BLVD
GoodOver: NORTH CHANNEL DRY CREEK
0.3 MI E RIO LINDA BLVD, Sacramento, CA
Built 1960 Load: 39.2 t ADT: 9,000
INTERSTATE 40
GoodOver: WHALE MTN WASH
08-SBD-040-R152.12, San Bernardino, CA
Built 1966 Load: 39.2 t ADT: 7,450
INTERSTATE 40 WB
GoodOver: PISGAH CRATER ROAD
08-SBD-040-R37.27, San Bernardino, CA
Built 1967 Load: 39.2 t ADT: 8,150
INTERSTATE 40 EB
GoodOver: PISGAH CRATER ROAD
08-SBD-040-R37.27, San Bernardino, CA
Built 1967 Load: 39.2 t ADT: 8,150
INTERSTATE 40
GoodOver: FOX WASH
08-SBD-040-R139.82-NED, San Bernardino, CA
Built 1967 Load: 39.2 t ADT: 16,700
E210-S215 CONNECTR
GoodOver: 27TH STREET
08-SBD-210-21.49-SBD, San Bernardino, CA
Built 2007 Load: 39.2 t ADT: 2,001
STATE ROUTE 58 WB
GoodOver: MOJAVE RIVER
08-SBD-058-R32.30, San Bernardino, CA
Built 1997 Load: 39.2 t ADT: 6,750
MERRILL AVE
GoodOver: CUCAMONGA CREEK CHANNEL
0.3 MI W ARCHIBALD AVE, San Bernardino, CA
Built 1979 Load: 39.2 t ADT: 4,300
INTERSTATE 8 EB
GoodOver: CARRIZO GORGE RD,SDIV RR
11-SD-008-R72.57, San Diego, CA
Built 1967 Load: 39.2 t ADT: 8,150
JACK TONE RD
GoodOver: NORTH LITTLE JOHNS CREEK
1.2 MI N MARIPOSA RD, San Joaquin, CA
Built 1961 Load: 39.2 t ADT: 3,202
STATE ROUTE 1
GoodOver: ARROYO GRANDE CREEK
05-SLO-001-10.94, San Luis Obispo, CA
Built 1956 Load: 39.2 t ADT: 6,200
O'DONOVAN RD
GoodOver: E BRANCH HUER HUERO CRK
0.7 MI NW OF S.R. 58, San Luis Obispo, CA
Built 1942 Load: 39.2 t ADT: 535
OAK GROVE DR
GoodOver: BUENA VISTA CREEK
0.17 MI N OF E VALLEY RD, Santa Barbara, CA
Built 1965 Load: 39.2 t ADT: 422
W237-S85 CONNECTOR
GoodOver: STEVENS CREEK
04-SCL-237-R0.32-MVW, Santa Clara, CA
Built 1965 Load: 39.2 t ADT: 16,600
SPRINGER AVE
GoodOver: SARATOGA CREEK
AT STATE HWY 9, Santa Clara, CA
Built 1965 Load: 39.2 t ADT: 1,459
SARATOGA-SUNYVL RD
GoodOver: SARATOGA CREEK
JUST N/O OF RTE. 9, Santa Clara, CA
Built 1910 Load: 39.2 t ADT: 10,769
MAGNOLIA DR
GoodOver: WEST SLOUGH
NEAR SKIMMER RD, Sonoma, CA
Built 1979 Load: 39.2 t ADT: 100
STATE ROUTE 36
GoodOver: DIBBLE CREEK
02-TEH-036-R34.04, Tehama, CA
Built 1967 Load: 39.2 t ADT: 2,250
STATE ROUTE 65
GoodOver: WHITE RIVER
06-TUL-065-R5.12, Tulare, CA
Built 1968 Load: 39.2 t ADT: 8,550
STATE ROUTE 23
GoodOver: HILLCREST DRIVE
07-VEN-023-R3.70-THOK, Ventura, CA
Built 1970 Load: 39.2 t ADT: 94,000
N880-66TH AV OFFRP
GoodOver: DAMON SLOUGH
04-ALA-880-26.54-OAK, Alameda, CA
Built 1968 Load: 39.5 t ADT: 5,200
SOUTH FORK ROAD
GoodOver: ROCK CREEK
8.1 MI SE JCT US 199, Del Norte, CA
Built 2009 Load: 39.5 t ADT: 334
INTERSTATE 5 SB
GoodOver: S NAPA AVE
06-FRE-005-13.08, Fresno, CA
Built 1967 Load: 39.5 t ADT: 15,000
INTERSTATE 5 NB
GoodOver: S NAPA AVE
06-FRE-005-13.08, Fresno, CA
Built 1967 Load: 39.5 t ADT: 15,000
INTERSTATE 5 SB
GoodOver: GALE RD
06-FRE-005-9.23, Fresno, CA
Built 1967 Load: 39.5 t ADT: 15,000
INTERSTATE 5 NB
GoodOver: GALE RD
06-FRE-005-9.23, Fresno, CA
Built 1967 Load: 39.5 t ADT: 15,000
E BELMONT AVE
GoodOver: FANCHER CREEK CANAL
0.2 MI EAST OF TEMPERANCE, Fresno, CA
Built 1956 Load: 39.5 t ADT: 4,100
S DERRICK AVE
GoodOver: CANTUA CREEK
1.5 MI. SOUTH OF I-5, Fresno, CA
Built 1969 Load: 39.5 t ADT: 200
INTERSTATE 8 EB
GoodOver: SDIV RR
11-IMP-008-R13.93, Imperial, CA
Built 1968 Load: 39.5 t ADT: 6,200
STATE ROUTE 223
GoodOver: ARVIN-EDISON CANAL
06-KER-223-23.84, Kern, CA
Built 1966 Load: 39.5 t ADT: 2,000
E2-N5 CONNECTOR RA
GoodOver: RIVERSIDE DR
07-LA-002-14.96-LA, Los Angeles, CA
Built 1961 Load: 39.5 t ADT: 6,900
N605-E210 CONN
GoodOver: LACMTA & BNSF RY
07-LA-605-25.55-IRW, Los Angeles, CA
Built 1970 Load: 39.5 t ADT: 36,000
GRAND AVE
GoodOver: SAN DIMAS WASH
100FT N/O ARROW HWY, Los Angeles, CA
Built 1959 Load: 39.5 t ADT: 23,056
HUNTINGTON DR W
GoodOver: ARCADIA WASH
0.2MI E/O HOLLY AVE, Los Angeles, CA
Built 1957 Load: 39.5 t ADT: 14,111
VALINDA AVE
GoodOver: PUENTE CRK
0.8MI W/O AZUSA AVE, Los Angeles, CA
Built 1974 Load: 39.5 t ADT: 18,193
RIVERSIDE DR
GoodOver: LOS ANGELES RIVER
JUST NORTH OF SR-134, Los Angeles, CA
Built 1938 Load: 39.5 t ADT: 12,650
VANOWEN ST
GoodOver: BULL CREEK
0.2 MI EAST BALBOA BLVD, Los Angeles, CA
Built 1954 Load: 39.5 t ADT: 30,207
DE LONG AVENUE
GoodOver: NCRRA (OLD NWP RR)
04-MRN-101-R21.15-NVTO, Marin, CA
Built 1974 Load: 39.5 t ADT: 30,155
STATE ROUTE 152 WB
GoodOver: EASTSIDE BYPASS CHANNEL
10-MER-152-R39.29, Merced, CA
Built 1963 Load: 39.5 t ADT: 8,425
SOUTH SHORE DR
GoodOver: SUMMIT CREEK
AT DONNER LAKE, Nevada, CA
Built 1970 Load: 39.5 t ADT: 2,100
INTERSTATE 10 WB
GoodOver: SHANTY DITCH
08-RIV-010-R97.33, Riverside, CA
Built 1967 Load: 39.5 t ADT: 23,000
HARRISON ST
GoodOver: LOFTUS DITCH
0.8 MI S/O PIERCE ST, Riverside, CA
Built 1976 Load: 39.5 t ADT: 1,000
INTERSTATE 15 SB
GoodOver: FLAT DITCH
08-SBD-015-R101.48, San Bernardino, CA
Built 1963 Load: 39.5 t ADT: 28,000
INTERSTATE 40
GoodOver: FOX WASH OVERFLOW
08-SBD-040-R140.00-NED, San Bernardino, CA
Built 1967 Load: 39.5 t ADT: 17,500
Showing 24,601-24,650 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 |