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
RD 176
GoodOver: WHITE RIVER
.25 MI S/O AVE 32, Tulare, CA
Built 1956 Load: 37.3 t ADT: 500
STATE ROUTE 120 WB
GoodOver: PRIVATE ACCESS ROAD
10-TUO-120-R5.98, Tuolumne, CA
Built 1976 Load: 37.3 t ADT: 6,100
INTERSTATE 80
GoodOver: YOLO CAUSEWAY WEST
03-YOL-080-5.81, Yolo, CA
Built 1962 Load: 37.3 t ADT: 135,000
HAHN ROAD
GoodOver: NORTH BRANCH SAND CREEK
0.7 MI EAST OF OLD 99 W, Colusa, CA
Built 1968 Load: 37.6 t ADT: 1,651
STATE ROUTE 58
GoodOver: HART FLAT ROAD
09-KER-058-80.24, Kern, CA
Built 1962 Load: 37.6 t ADT: 42,400
STATE ROUTE 178 EB
GoodOver: UP RR & ESPEE STREET
06-KER-178-R2.09-BKD, Kern, CA
Built 1967 Load: 37.6 t ADT: 25,500
STATE ROUTE 58 WB
GoodOver: TVRR
06-KER-058-R58.92, Kern, CA
Built 1974 Load: 37.6 t ADT: 32,500
STATE ROUTE 58 EB
GoodOver: TVRR
06-KER-058-R58.92, Kern, CA
Built 1974 Load: 37.6 t ADT: 22,500
INTERSTATE 405
GoodOver: BNSF RY SPUR
07-LA-405-18.92-HAW, Los Angeles, CA
Built 1963 Load: 37.6 t ADT: 260,800
INTERSTATE 210
GoodOver: PAXTON STREET
07-LA-210-R6.01-LA, Los Angeles, CA
Built 1975 Load: 37.6 t ADT: 121,000
HUNTINGTON DR E
GoodOver: EATON WASH
0.5MI W/O ROSEMEAD BLVD, Los Angeles, CA
Built 1963 Load: 37.6 t ADT: 37,586
FIELDS ROAD
GoodOver: DRY CREEK
1.4 MI NORTH OF KEYES RD, Merced, CA
Built 1965 Load: 37.6 t ADT: 75
US HIGHWAY 101 SB
GoodOver: LOCKWOOD SAN LUCAS ROAD
05-MON-101-R30.65, Monterey, CA
Built 1971 Load: 37.6 t ADT: 7,450
STATE ROUTE 1
GoodOver: HILLSIDE ABOVE OCEAN
05-MON-001-35.90, Monterey, CA
Built 1981 Load: 37.6 t ADT: 5,000
NO DATA ENTERED
GoodOver: NACIMIENTO RIVER
NO DATA ENTERED, Monterey, CA
Built 1965 Load: 37.6 t ADT: 50
DOUGLAS BLVD
GoodOver: DRY CREEK
0.35 MI E OF VERNON ST, Placer, CA
Built 1972 Load: 37.6 t ADT: 16,694
ROAD 28N03
GoodOver: LAST CHANCE CREEK
LAST CHANCE CREEK, Plumas, CA
Built 1975 Load: 37.6 t ADT: 50
INTERSTATE 15 SB
GoodOver: LAKE STREET
08-RIV-015-26.69, Riverside, CA
Built 1980 Load: 37.6 t ADT: 61,000
INTERSTATE 15 NB
GoodOver: LAKE STREET
08-RIV-015-26.69, Riverside, CA
Built 1980 Load: 37.6 t ADT: 61,000
4TH AVENUE
GoodOver: "C" CANAL
0.96 MI. W/O ROUTE 95 HWY, Riverside, CA
Built 1971 Load: 37.6 t ADT: 185
STATE ROUTE 51
GoodOver: ARCADE CREEK
03-SAC-051-8.06-SAC, Sacramento, CA
Built 1954 Load: 37.6 t ADT: 145,000
US HIGHWAY 101 NB
GoodOver: ANZAR ROAD
05-SBT-101-R4.25, San Benito, CA
Built 1972 Load: 37.6 t ADT: 25,500
BUCKMAN SPRINGS RD
GoodOver: COTTONWOOD CREEK
0.3 MI S/O I-8, San Diego, CA
Built 1975 Load: 37.6 t ADT: 4,300
PEUTZ VALLEY RD
GoodOver: EL CAPITAN LAKE TRIB
2.0 MI N OF RTE I-8, San Diego, CA
Built 1987 Load: 37.6 t ADT: 294
BROADWAY
GoodOver: ESCONDIDO CREEK
0.1 MI S OF ROUTE 78, San Diego, CA
Built 1954 Load: 37.6 t ADT: 12,000
DUNCAN ROAD
GoodOver: MORMON SLOUGH
0.6 MI N COPPEROPOLIS RD, San Joaquin, CA
Built 1973 Load: 37.6 t ADT: 1,839
CLEMENTS RD
GoodOver: BRANCH BEAR CREEK
0.3 MI N ACAMPO RD, San Joaquin, CA
Built 1966 Load: 37.6 t ADT: 1,407
US HIGHWAY 101 NB
GoodOver: GRAVES CREEK
05-SLO-101-49.40, San Luis Obispo, CA
Built 1975 Load: 37.6 t ADT: 31,000
US HIGHWAY 101 SB
GoodOver: TENTH STREET
05-SLO-101-65.56, San Luis Obispo, CA
Built 1957 Load: 37.6 t ADT: 8,750
INTERSTATE 5 SB
GoodOver: SOUTH FORK MCCLURE CREEK
02-TEH-005-R14.19, Tehama, CA
Built 1965 Load: 37.6 t ADT: 14,500
INTERSTATE 5 NB
GoodOver: SOUTH FORK MCCLURE CREEK
02-TEH-005-R14.19, Tehama, CA
Built 1965 Load: 37.6 t ADT: 14,500
WINDING ROAD
GoodOver: SF STANISLAUS RIVER
NO DATA ENTERED, Tuolumne, CA
Built 2015 Load: 37.6 t ADT: 50
GRIDLEY COLUSA HWY
GoodOver: LATERAL D CANAL
2.8 MI E/O COLUSA, Butte, CA
Built 1922 Load: 37.9 t ADT: 524
STATE ROUTE 99 SB
GoodOver: BNSF RY & AMTRAK
06-FRE-099-16.55, Fresno, CA
Built 1963 Load: 37.9 t ADT: 48,000
INTERSTATE 8 WB
GoodOver: SDIV RR
11-IMP-008-R13.97, Imperial, CA
Built 1968 Load: 37.9 t ADT: 6,200
VALOS RD
GoodOver: ARVIN-EDISON CANAL
0.3 MI S DAVID RD, Kern, CA
Built 1967 Load: 37.9 t ADT: 160
ZERKER RD
GoodOver: CALLOWAY CANAL
1.8 MI N 7TH STANDARD RD, Kern, CA
Built 1961 Load: 37.9 t ADT: 2,650
EASTERN AV-EB10 ON
GoodOver: EMBANKMENT
07-LA-010-20.90, Los Angeles, CA
Built 1972 Load: 37.9 t ADT: 6,479
STATE ROUTE 138
GoodOver: CALIFORNIA AQUEDUCT
07-LA-138-70.28, Los Angeles, CA
Built 1971 Load: 37.9 t ADT: 9,300
INTERSTATE 210
GoodOver: WALTONIA DR
07-LA-210-R18.53, Los Angeles, CA
Built 1972 Load: 37.9 t ADT: 166,000
STATE ROUTE 14
GoodOver: AVENUE "J-8"
07-LA-014-R67.37-LAN, Los Angeles, CA
Built 1972 Load: 37.9 t ADT: 31,000
SOLEDAD CYN RD
GoodOver: MINT CYN WASH
0.1MI E/O SIERRA HWY, Los Angeles, CA
Built 1982 Load: 37.9 t ADT: 32,235
CENTRALIA ST
GoodOver: PALO VERDE DRN
150FT W/O PALO VERDE AVE, Los Angeles, CA
Built 1977 Load: 37.9 t ADT: 2,130
CONCORD ST
GoodOver: VERDUGO WASH
0.3MI E/O SAN FERNANDO BL, Los Angeles, CA
Built 1940 Load: 37.9 t ADT: 8,755
LA CRESCENTA AVE
GoodOver: HALLS CYN CHAN
1.0MI S/O I-10 FWY, Los Angeles, CA
Built 1935 Load: 37.9 t ADT: 13,081
GARVEY AVE N
GoodOver: WALNUT CRK
0.2MI W/O GRAND AVE, Los Angeles, CA
Built 1975 Load: 37.9 t ADT: 12,120
SYCAMORE AVE
GoodOver: PICKENS CYN CHAN
0.2MI E/O LA CRESENTA AVE, Los Angeles, CA
Built 1935 Load: 37.9 t ADT: 510
Alondra Blvd
GoodOver: North Fork Coyote Ck
0.2 W/O VALLEY VIEW AVE, Los Angeles, CA
Built 2014 Load: 37.9 t ADT: 26,400
INTERSTATE 5 SB
GoodOver: SERVICE ROAD
10-MER-005-24.93, Merced, CA
Built 1967 Load: 37.9 t ADT: 15,500
INTERSTATE 5 NB
GoodOver: SERVICE ROAD
10-MER-005-24.93, Merced, CA
Built 1967 Load: 37.9 t ADT: 21,500
Showing 24,401-24,450 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 |