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
JACK TONE RD
GoodOver: PADDY CREEK SOUTH
1 MI N LIVE OAK RD, San Joaquin, CA
Built 1962 Load: 33.4 t ADT: 2,715
TULLY RD
GoodOver: MIDDLE BR PADDY CREEK
0.5 MI S KETTLEMAN LANE, San Joaquin, CA
Built 1971 Load: 33.4 t ADT: 402
WEST OCEAN AVE
GoodOver: RODEO SAN PASQUAL CHAN
0.2 MI E OF DEWOLF, Santa Barbara, CA
Built 1962 Load: 33.4 t ADT: 2,380
STATE ROUTE 299
GoodOver: UP RR, AMTRK, DIVISION
02-SHA-299-23.91-RDG, Shasta, CA
Built 1958 Load: 33.4 t ADT: 19,700
STATE ROUTE 44
GoodOver: CHURN CREEK
02-SHA-044-R1.56-RDG, Shasta, CA
Built 1968 Load: 33.4 t ADT: 24,250
SHILOH ROAD
GoodOver: TUOLUMNE RIVER
3 MI N GRAYSON RD, Stanislaus, CA
Built 1965 Load: 33.4 t ADT: 2,732
INTERSTATE 5 SB
GoodOver: TRUCKEE CREEK
02-TEH-005-R14.85, Tehama, CA
Built 1965 Load: 33.4 t ADT: 14,500
INTERSTATE 5 NB
GoodOver: TRUCKEE CREEK
02-TEH-005-R14.85, Tehama, CA
Built 1965 Load: 33.4 t ADT: 14,500
STATE ROUTE 3
GoodOver: READING CREEK
02-TRI-003-29.74, Trinity, CA
Built 1968 Load: 33.4 t ADT: 1,450
STATE ROUTE 65
GoodOver: DEER CREEK
06-TUL-065-R13.06, Tulare, CA
Built 1968 Load: 33.4 t ADT: 10,000
STATE ROUTE 33
GoodOver: SHELL ROAD
07-VEN-033-2.65, Ventura, CA
Built 1956 Load: 33.4 t ADT: 20,000
US HIGHWAY 101 NB
GoodOver: FIGUEROA STREET
07-VEN-101-30.40-VEN, Ventura, CA
Built 1963 Load: 33.4 t ADT: 64,000
US HIGHWAY 101 SB
GoodOver: HOBSON ACCESS RD
07-VEN-101-R38.89, Ventura, CA
Built 1973 Load: 33.4 t ADT: 38,000
INTERSTATE 580 WB
GoodOver: ALAMO CANAL
04-ALA-580-20.56-PLE, Alameda, CA
Built 1952 Load: 33.7 t ADT: 102,900
COLISEUM-N880 ONRP
GoodOver: DAMON SLOUGH
04-ALA-880-26.53-OAK, Alameda, CA
Built 1968 Load: 33.7 t ADT: 1,250
MAIN ST
GoodOver: ARROYO DEL VALLE
SOUTH DEL VALLE PKWY, Alameda, CA
Built 1959 Load: 33.7 t ADT: 15,700
HUMBUG ROAD
GoodOver: BUTTE CREEK
6 MI NE SKYWAY, Butte, CA
Built 1977 Load: 33.7 t ADT: 30
SIMAS AVE
GoodOver: PINOLE CREEK
0.1 MI E OF PINOLE VAL RD, Contra Costa, CA
Built 1966 Load: 33.7 t ADT: 1,300
U.S. HIGHWAY 101
GoodOver: SMITH RIVER OVERFLOW
01-DN-101-35.77, Del Norte, CA
Built 1955 Load: 33.7 t ADT: 6,700
INTERSTATE 5 SB
GoodOver: THREE ROCKS RD
06-FRE-005-35.26, Fresno, CA
Built 1967 Load: 33.7 t ADT: 16,000
INTERSTATE 5 NB
GoodOver: THREE ROCKS RD
06-FRE-005-35.26, Fresno, CA
Built 1967 Load: 33.7 t ADT: 16,000
Avenal Cutoff Road
GoodOver: San Luis Canal
2.7 MI NE OF I-5, Kings, CA
Built 1968 Load: 33.7 t ADT: 1,000
STATE ROUTE 14
GoodOver: METROLINK & UP RR
07-LA-014-R31.62-SCTA, Los Angeles, CA
Built 1972 Load: 33.7 t ADT: 113,000
STATE ROUTE 14
GoodOver: S AMARGOSA CREEK
07-LA-014-R61.53-PMDL, Los Angeles, CA
Built 1972 Load: 33.7 t ADT: 44,500
STATE ROUTE 14
GoodOver: S AMARGOSA CREEK
07-LA-014-R61.53-PMDL, Los Angeles, CA
Built 1972 Load: 33.7 t ADT: 44,500
ALOSTA AVE
GoodOver: BIG DALTON WASH
1.1MI E/O GLENDORA RD, Los Angeles, CA
Built 1959 Load: 33.7 t ADT: 33,125
GLORIETTA AVE
GoodOver: VERDUGO WASH
0.1MI E/O CANADA BLVD, Los Angeles, CA
Built 1941 Load: 33.7 t ADT: 1,326
WOODRUFF AVE
GoodOver: ARCADIA WASH
0.1MI E/O EL MONTE AVE, Los Angeles, CA
Built 1955 Load: 33.7 t ADT: 816
RIDGEGROVE DR
GoodOver: HASKELL CYN CHAN
0.4MI N/O BOUQUET CYN RD, Los Angeles, CA
Built 1979 Load: 33.7 t ADT: 5,459
STATE ROUTE 140
GoodOver: CRANE CREEK
10-MPA-140-50.93, Mariposa, CA
Built 1957 Load: 33.7 t ADT: 1,400
STATE ROUTE 162
GoodOver: MILL CREEK
01-MEN-162-30.33, Mendocino, CA
Built 1958 Load: 33.7 t ADT: 2,200
STATE ROUTE 1
GoodOver: RUSSIAN GULCH
01-MEN-001-52.64, Mendocino, CA
Built 1939 Load: 33.7 t ADT: 9,900
EUCLID STREET
GoodOver: BREA CREEK CHANNEL
100' S/O MALVERN AVE, Orange, CA
Built 1936 Load: 33.7 t ADT: 32,900
INTERSTATE 15 SB
GoodOver: OLIVE STREET
08-RIV-015-17.52, Riverside, CA
Built 1981 Load: 33.7 t ADT: 56,500
INTERSTATE 8 WB
GoodOver: UN GALLO RD
11-SD-008-R45.80, San Diego, CA
Built 1974 Load: 33.7 t ADT: 8,100
INTERSTATE 15 SB
GoodOver: RAINBOW GLEN ROAD
11-SD-015-R52.11, San Diego, CA
Built 1985 Load: 33.7 t ADT: 72,000
MARKET ST
GoodOver: HILLSIDE
NEAR ROMAIN ST, San Francisco, CA
Built 1958 Load: 33.7 t ADT: 50,000
STATE ROUTE 99
GoodOver: LITTLEJOHNS CREEK
10-SJ-099-12.53, San Joaquin, CA
Built 1955 Load: 33.7 t ADT: 35,250
B STREET
GoodOver: DUCK CREEK
0.2 MI N RALPH RD, San Joaquin, CA
Built 1965 Load: 33.7 t ADT: 2,040
CABRILLO AVE
GoodOver: SARATOGA CREEK
W OF SAN TOMAS EXPWY, Santa Clara, CA
Built 1963 Load: 33.7 t ADT: 7,000
STATE ROUTE 299
GoodOver: CHURN CREEK
02-SHA-299-25.71, Shasta, CA
Built 1974 Load: 33.7 t ADT: 6,250
INTERSTATE 5 NB
GoodOver: BALLS FERRY RD
02-SHA-005-R5.29-AND, Shasta, CA
Built 1966 Load: 33.7 t ADT: 78,000
HAPPY VALLEY RD
GoodOver: A.C.I.D. CANAL
50' WEST OF RTE 273, Shasta, CA
Built 1949 Load: 33.7 t ADT: 3,830
STATE ROUTE 49
GoodOver: SIERRAVILLE CREEK
03-SIE-049-47.54, Sierra, CA
Built 1962 Load: 33.7 t ADT: 1,000
STATE ROUTE 49
GoodOver: HILLSIDE
03-SIE-049-7.38, Sierra, CA
Built 1976 Load: 33.7 t ADT: 600
SCOTT RIVER ROAD
GoodOver: MOFFETT CREEK
0.3 MI N STATE ROUTE 3, Siskiyou, CA
Built 1962 Load: 33.7 t ADT: 1,032
WHITES GULCH ROAD
GoodOver: NORTH FORK SALMON RIVER
S OF SAWYERS BAR RD, Siskiyou, CA
Built 1969 Load: 33.7 t ADT: 50
GORDON VALLEY ROAD
GoodOver: GORDON CREEK
1 MI N CLAYTON ROAD, Solano, CA
Built 1997 Load: 33.7 t ADT: 469
AVE 272
GoodOver: PACKWOOD CREEK
0.7 MI E OF RD 100, Tulare, CA
Built 1949 Load: 33.7 t ADT: 200
INTERSTATE 680 NB
GoodOver: DEPT OF WATER RESOURCES
04-ALA-680-M1.47-FMT, Alameda, CA
Built 1971 Load: 34.0 t ADT: 61,000
Showing 23,851-23,900 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 |