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 140
UnknownOver: BNSF RY,AMTRAK, BAKER RD
10-MER-140-37.07-MER, Merced, CA
Built 2014 ADT: 691
UP RAILROAD
UnknownOver: CAMPBELL BLVD
0.2 MI NORTH OF SR 99, Merced, CA
Built 1938 ADT: 36,900
BNSF RY AND AMTRAK
UnknownOver: G STREET
0.8 MI N STATE ROUTE 140, Merced, CA
Built 2011 ADT: 28,824
SANDY MUSH ROAD
UnknownOver: SOUTH VISTA AVE
AT CROSS WITH S VISTA AVE, Merced, CA
Built 2015 ADT: 5,000
SOUTH LANDING ROAD
UnknownOver: US HIGHWAY 395
09-MNO-395-R13.93, Mono, CA
Built 1970 ADT: 13,100
US HIGHWAY 395 SB
UnknownOver: STATE ROUTE 203
09-MNO-395-R25.73, Mono, CA
Built 1969 ADT: 8,600
US HIGHWAY 395 NB
UnknownOver: STATE ROUTE 203
09-MNO-395-R25.73, Mono, CA
Built 1969 ADT: 8,600
US HIGHWAY 101 SB
UnknownOver: JOLON ROAD
05-MON-101-R9.67, Monterey, CA
Built 1936 ADT: 1,600
US HIGHWAY 101 NB
UnknownOver: JOLON ROAD
05-MON-101-R9.67, Monterey, CA
Built 1964 ADT: 1,600
SCENIC DRIVE OC
UnknownOver: STATE ROUTE 68
05-MON-068-3.07, Monterey, CA
Built 1930 ADT: 26,000
SCENIC DRIVE
UnknownOver: STATE ROUTE 68
05-MON-068-L4.02, Monterey, CA
Built 1930 ADT: 26,928
UP RR & AMTRAK
UnknownOver: STATE ROUTE 183
05-MON-183-0.57-SAL, Monterey, CA
Built 1936 ADT: 28,560
N1-W68 & E68-N1 CN
UnknownOver: STATE ROUTE 1
05-MON-068-L4.25-MON, Monterey, CA
Built 1959 ADT: 62,000
S ALTA ST
UnknownOver: US HIGHWAY 101
05-MON-101-69.37, Monterey, CA
Built 1962 ADT: 40,000
STATE ROUTE 68 WB
UnknownOver: RIVER ROAD
05-MON-068-R17.19, Monterey, CA
Built 1966 ADT: 9,364
STATE ROUTE 68 EB
UnknownOver: RIVER ROAD
05-MON-068-R17.19, Monterey, CA
Built 1966 ADT: 9,364
FIFTH STREET
UnknownOver: US HIGHWAY 101
05-MON-101-70.86, Monterey, CA
Built 1963 ADT: 37,100
S146-S101-N146 CON
UnknownOver: US HWY 101
05-MON-146-1.49, Monterey, CA
Built 1960 ADT: 32,000
US HIGHWAY 101 SB
UnknownOver: UP RR, AMTRAK, FRONT ST
05-MON-101-62.70, Monterey, CA
Built 1960 ADT: 5,150
US HIGHWAY 101 NB
UnknownOver: UP RR, AMTRAK, FRONT ST
05-MON-101-62.70, Monterey, CA
Built 1960 ADT: 6,950
ALTA ST
UnknownOver: US HIGHWAY 101
05-MON-101-72.61, Monterey, CA
Built 1963 ADT: 42,700
US HIGHWAY 101 SB
UnknownOver: EAST MARKET STREET
05-MON-101-87.30-SAL, Monterey, CA
Built 1954 ADT: 16,500
US HIGHWAY 101 NB
UnknownOver: EAST MARKET STREET
05-MON-101-87.30-SAL, Monterey, CA
Built 1954 ADT: 16,500
SHERWOOD DR
UnknownOver: US HIGHWAY 101
05-MON-101-87.97-SAL, Monterey, CA
Built 1953 ADT: 53,000
STATE ROUTE 183 SB
UnknownOver: US HWY 101 (@PM R88.24)
05-MON-183-0.01-SAL, Monterey, CA
Built 1953 ADT: 55,080
STATE ROUTE 68 WB
UnknownOver: SPRECKELS ROAD
05-MON-068-R18.08, Monterey, CA
Built 1967 ADT: 6,324
STATE ROUTE 68 EB
UnknownOver: SPRECKELS ROAD
05-MON-068-R18.08, Monterey, CA
Built 1967 ADT: 6,324
SR 183 NB, MAIN SB
UnknownOver: US 101, N MAIN-N101 ONRP
05-MON-183-0.01-SAL, Monterey, CA
Built 1965 ADT: 63,100
STATE ROUTE 156
UnknownOver: US HWY 101 (@PM 95.44)
05-MON-156-T5.17, Monterey, CA
Built 1969 ADT: 56,814
ARROYO SECO RD
UnknownOver: US HIGHWAY 101
05-MON-101-60.40, Monterey, CA
Built 1958 ADT: 35,000
SOLEDAD PRISON RD
UnknownOver: US HIGHWAY 101
05-MON-101-66.40, Monterey, CA
Built 1959 ADT: 38,700
SILLIMAN RD
UnknownOver: US HIGHWAY 101
05-MON-101-64.63, Monterey, CA
Built 1959 ADT: 39,500
US HIGHWAY 101 SB
UnknownOver: N101-ABBOTT&ABBOTT-S101
05-MON-101-82.47, Monterey, CA
Built 1954 ADT: 13,745
US HIGHWAY 101 SB
UnknownOver: SANBORN RD
05-MON-101-86.12-SAL, Monterey, CA
Built 1954 ADT: 22,042
US HIGHWAY 101 NB
UnknownOver: SANBORN RD
05-MON-101-86.12-SAL, Monterey, CA
Built 1954 ADT: 22,145
SR 68 (JOHN ST)
UnknownOver: US HWY 101
05-MON-068-22.00-SAL, Monterey, CA
Built 1954 ADT: 54,000
US HIGHWAY 101 SB
UnknownOver: ALISAL ROAD
05-MON-101-87.06-SAL, Monterey, CA
Built 1954 ADT: 15,244
US HIGHWAY 101 NB
UnknownOver: ALISAL ROAD
05-MON-101-87.06-SAL, Monterey, CA
Built 1954 ADT: 15,244
AIRPORT BLVD
UnknownOver: US HIGHWAY 101
05-MON-101-85.62-SAL, Monterey, CA
Built 1955 ADT: 73,800
US HIGHWAY 101 SB
UnknownOver: BROADWAY
05-MON-101-R41.19L, Monterey, CA
Built 1968 ADT: 10,000
US HIGHWAY 101 NB
UnknownOver: BROADWAY
05-MON-101-R41.19R, Monterey, CA
Built 1968 ADT: 10,000
MAIN STREET
UnknownOver: US HIGHWAY 101
05-MON-101-76.97, Monterey, CA
Built 1958 ADT: 45,000
W LAUREL DR
UnknownOver: US HIGHWAY 101
05-MON-101-R89.27, Monterey, CA
Built 1965 ADT: 83,000
BORONDA ROAD WB
UnknownOver: U.S. HIGHWAY 101
05-MON-101-R91.01, Monterey, CA
Built 1965 ADT: 76,000
BORONDA ROAD EB
UnknownOver: U.S. HIGHWAY 101
05-MON-101-R90.97, Monterey, CA
Built 2000 ADT: 58,300
S GREENFIELD
UnknownOver: US HIGHWAY 101
05-MON-101-52.66, Monterey, CA
Built 1961 ADT: 30,200
OAK AVENUE
UnknownOver: US HIGHWAY 101
05-MON-101-53.36-GNFD, Monterey, CA
Built 1961 ADT: 43,000
WALNUT AVE
UnknownOver: US HIGHWAY 101
05-MON-101-53.86, Monterey, CA
Built 1961 ADT: 33,000
EL CAMINO REAL
UnknownOver: US HIGHWAY 101
05-MON-101-54.79, Monterey, CA
Built 1961 ADT: 33,000
A ST
UnknownOver: US HIGHWAY 101
05-MON-101-R0.84, Monterey, CA
Built 1965 ADT: 17,400
Showing 3,351-3,400 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 |