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
POWAY RD
FairOver: RATTLESNAKE CREEK
100FT E/O TARASCAN DR., San Diego, CA
Built 1964 Load: 24.3 t ADT: 33,122
CARLSBAD BLVD
FairOver: ENCINA DISCHARGE CH
0.5 MI N/O CANNON RD, San Diego, CA
Built 1954 Load: 24.3 t ADT: 22,760
LILAC RD
FairOver: KEYS CREEK
2.7MI N/O OLD CASTLE RD, San Diego, CA
Built 1968 Load: 24.3 t ADT: 1,433
GOPHER CYN RD
FairOver: S FK GOPHER CYN
2.9MI W/O ROUTE I-15, San Diego, CA
Built 1972 Load: 24.3 t ADT: 14,975
FAIRBURN ST
FairOver: LOS PENASQUITOS CRK TRIB
125FT E/O FLORAL AVE, San Diego, CA
Built 1972 Load: 24.3 t ADT: 100
GATE DR
FairOver: POWAY CREEK
0.08MI S/O POWAY RD, San Diego, CA
Built 1971 Load: 24.3 t ADT: 750
47TH ST
FairOver: CHOLLAS CREEK
0.3 MI S/O MARKET ST, San Diego, CA
Built 1970 Load: 24.3 t ADT: 10,400
LINCOLN AVE
FairOver: REIDY CREEK
0.3M E/O ROCK SPRNGS RD, San Diego, CA
Built 1966 Load: 24.3 t ADT: 15
LINCOLN AVE
FairOver: WASHINGTON CHANNEL
0.11MI S/O OF MAIN ST, San Diego, CA
Built 1969 Load: 24.3 t ADT: 3,000
LAWRENCE WELK DR
FairOver: SOUTH FORK MOOSA CREEK
250 FT E/O CHAMPAGNE BLVD, San Diego, CA
Built 1966 Load: 24.3 t ADT: 2,625
CROUCH ST
FairOver: LOMA ALTA CREEK
110FT S/O OCEANSIDE BLVD, San Diego, CA
Built 1965 Load: 24.3 t ADT: 10,900
HOLLAND RD
FairOver: POMERADO CREEK
300FT E/O POMERADO RD, San Diego, CA
Built 1972 Load: 24.3 t ADT: 1,500
VAUGHAN RD
FairOver: POMERADO CREEK
300FT E/O POMERADO RD, San Diego, CA
Built 1972 Load: 24.3 t ADT: 1,500
WANESTA DR
FairOver: RATTLESNAKE CREEK
0.12MI E/O TARASCAN RD, San Diego, CA
Built 1970 Load: 24.3 t ADT: 120
HALECREST DRIVE
FairOver: TELEGRAPH CANYON CHANNEL
20 FT N/O TELEGRAPH CYN, San Diego, CA
Built 1966 Load: 24.3 t ADT: 4,100
GREENFIELD DRIVE
FairOver: FORESTER CREEK TRIBUTARY
0.2MI E/O PIONEER@VERNON, San Diego, CA
Built 1971 Load: 24.3 t ADT: 11,400
WINTER HAVEN ROAD
FairOver: SAN LUIS REY RIVER TRIB
0.1MI E/O MISSION RD., San Diego, CA
Built 1954 Load: 24.3 t ADT: 1,495
TREASURE ISLAND RD
FairOver: SIDEHILL
JEO SHV #2/ JWO SHV #6, San Francisco, CA
Built 1964 Load: 24.3 t ADT: 1,000
STATE ROUTE 120
FairOver: SO SAN JOAQUIN IRR CANAL
10-SJ-120-21.17, San Joaquin, CA
Built 1938 Load: 24.3 t ADT: 18,200
INTERSTATE 5
FairOver: CARLTON AVE
10-SJ-005-27.66-STKN, San Joaquin, CA
Built 1970 Load: 24.3 t ADT: 113,000
EIGHT MILE ROAD
FairOver: PIXLEY CREEK
AT WEST LANE., San Joaquin, CA
Built 1963 Load: 24.3 t ADT: 14,064
WEST LANE
FairOver: PIXLEY SLOUGH
0.7 MI N/O EIGHT MI RD, San Joaquin, CA
Built 1962 Load: 24.3 t ADT: 12,583
WEST LANE
FairOver: WOODBRIDGE S MAIN CANAL
0.7 MI S ARMSTRONG RD, San Joaquin, CA
Built 1963 Load: 24.3 t ADT: 13,343
AIRPORT WAY
FairOver: S BR WEBER CREEK
1.2 MI N FRENCH CAMP RD, San Joaquin, CA
Built 1961 Load: 24.3 t ADT: 8,754
JACK TONE ROAD
FairOver: LONE TREE CREEK
1.2 MI N LONE TREE RD, San Joaquin, CA
Built 1962 Load: 24.3 t ADT: 1,761
COLLIER RD
FairOver: DRAIN DITCH
0.3 MI E OF SOWLES RD, San Joaquin, CA
Built 1972 Load: 24.3 t ADT: 1,084
ELLIOTT RD
FairOver: DRY CREEK OVERFLOW
1 MI N OF LIBERTY RD, San Joaquin, CA
Built 1972 Load: 24.3 t ADT: 1,120
ANGIER RD
FairOver: PIXLEY SLOUGH
0.4 MI N LIVE OAK RD, San Joaquin, CA
Built 1970 Load: 24.3 t ADT: 127
FURRY RD
FairOver: PIXLEY SLOUGH
0.7 MI N LIVE OAK RD, San Joaquin, CA
Built 1970 Load: 24.3 t ADT: 220
MICKE GROVE RD
FairOver: PIXLEY SLOUGH
0.5 MI S ARMSTRONG RD, San Joaquin, CA
Built 1970 Load: 24.3 t ADT: 1,079
STAGECOACH ROAD
FairOver: DUCK CREEK
0.1 MI N OF MARIPOSA RD, San Joaquin, CA
Built 1972 Load: 24.3 t ADT: 11,300
SEXTON RD
FairOver: LONE TREE CREEK
1.9 MI N OF S.H. 120, San Joaquin, CA
Built 1963 Load: 24.3 t ADT: 203
ARCH ROAD
FairOver: WEBER CREEK
0.3 MI W OF NEWCASTLE, San Joaquin, CA
Built 1966 Load: 24.3 t ADT: 6,200
PEARSON ROAD
FairOver: PIXLEY CREEK
0.6 MI N EIGHT MILE RD, San Joaquin, CA
Built 1966 Load: 24.3 t ADT: 415
LOWER SACRAMENTO R
FairOver: WINEDRAW SLOUGH
JUST SOUTH EIGHT MILE RD, San Joaquin, CA
Built 1957 Load: 24.3 t ADT: 11,122
CYPRESS MT DR
FairOver: KLAU CREEK
1.6 MI SW OF KLAU, San Luis Obispo, CA
Built 1953 Load: 24.3 t ADT: 25
AIRPORT RD
FairOver: DRY CREEK
0.75 MI N OF SR 46, San Luis Obispo, CA
Built 1968 Load: 24.3 t ADT: 1,260
STENNER CREEK RD
FairOver: STENNER CREEK
0.05 MI N SR 1, San Luis Obispo, CA
Built 1959 Load: 24.3 t ADT: 150
ASUNCION ROAD
FairOver: TROUT CREEK
0.25 MI NE EL CAMINO REAL, San Luis Obispo, CA
Built 1969 Load: 24.3 t ADT: 371
LINDEN AVE
FairOver: SANTA MARGARITA CREEK
0.05 MI W EL CAMINO REAL, San Luis Obispo, CA
Built 1955 Load: 24.3 t ADT: 341
NACIMIENTO LAKE DR
FairOver: SAN MARCOS CREEK
0.05 MI S SAN MARCOS RD, San Luis Obispo, CA
Built 1964 Load: 24.3 t ADT: 4,973
CALLE JOAQUIN
FairOver: PREFUMO CREEK
0.1 MI NE LOS OSOS VLY RD, San Luis Obispo, CA
Built 1970 Load: 24.3 t ADT: 3,000
MURRAY ST
FairOver: STENNER CREEK
SANTA ROSA ST, San Luis Obispo, CA
Built 1951 Load: 24.3 t ADT: 1,000
STATE ROUTE 82
FairOver: COLMA CREEK
04-SM-082-22.36-CLM, San Mateo, CA
Built 1913 Load: 24.3 t ADT: 28,500
US 101, ROLLINS RD
FairOver: TRANSMISSION CANAL
04-SM-101-16.40-BURL, San Mateo, CA
Built 1928 Load: 24.3 t ADT: 232,000
STATE ROUTE 1
FairOver: POMPONIO CREEK
04-SM-001-16.44, San Mateo, CA
Built 1940 Load: 24.3 t ADT: 6,100
STATE ROUTE 82
FairOver: SAN MATEO CREEK
04-SM-082-11.82-SM, San Mateo, CA
Built 1935 Load: 24.3 t ADT: 30,250
U.S. HIGHWAY 101
FairOver: MARSH CREEK
04-SM-101-3.70-MLP, San Mateo, CA
Built 1930 Load: 24.3 t ADT: 199,000
STATE ROUTE 84
FairOver: LA HONDA CREEK
04-SM-084-8.61, San Mateo, CA
Built 1955 Load: 24.3 t ADT: 1,400
HAVEN AVE
FairOver: MARSH SLOUGH
04-SM-000-0.00-MLP, San Mateo, CA
Built 1954 Load: 24.3 t ADT: 6,400
Showing 10,401-10,450 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.