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
LOPEZ DR
FairOver: LOPEZ LAKE SPILLWAY
2.64 MI N/E ORCUTT RD, San Luis Obispo, CA
Built 1968 Load: 21.7 t ADT: 2,728
US HIGHWAY 101
FairOver: SAN YSIDRO CREEK
05-SB-101-9.56, Santa Barbara, CA
Built 1915 Load: 21.7 t ADT: 76,000
STATE ROUTE 237 EB
FairOver: UP RR YD,ACCESS RD,BARTD
04-SCL-237-10.20-MPS, Santa Clara, CA
Built 1969 Load: 21.7 t ADT: 36,500
STATE ROUTE 236
FairOver: HIGH BRIDGE CREEK
05-SCR-236-2.39, Santa Cruz, CA
Built 1925 Load: 21.7 t ADT: 1,350
CONFERENCE DR
FairOver: EAST ZAYANTE ROAD
0.5 MI E OF SR 9, Santa Cruz, CA
Built 1930 Load: 21.7 t ADT: 5,000
SOQUEL DR
FairOver: APTOS CREEK
AT SPRECKLES DR, Santa Cruz, CA
Built 1928 Load: 21.7 t ADT: 14,600
HOLIDAY ROAD
FairOver: SPRING BRANCH CREEK
0.5 MI N MT GATE OC, Shasta, CA
Built 1918 Load: 21.7 t ADT: 54
MIDWAY ROAD
FairOver: PUTAH SOUTH CANAL
0.01 MI E PUTMAN RD, Solano, CA
Built 1955 Load: 21.7 t ADT: 4,284
BENNETT VALLEY RD
FairOver: YULUPA CREEK
0.6 MI W WARM SPRINGS RD, Sonoma, CA
Built 1970 Load: 21.7 t ADT: 2,500
AUSTIN CREEK RD
FairOver: NO NAME CREEK
AT BERKLEY CAMP, Sonoma, CA
Built 1964 Load: 21.7 t ADT: 200
STATE ROUTE 36
FairOver: PAYNES CREEK
02-TEH-036-58.18, Tehama, CA
Built 1929 Load: 21.7 t ADT: 1,375
FINNELL AVE
FairOver: CORNING CANAL
0.5 MI E RAWSON RD, Tehama, CA
Built 1964 Load: 21.7 t ADT: 508
HOGSBACK ROAD
FairOver: UNNAMED STREAM
1.1 MI E/O SR 99, Tehama, CA
Built 1928 Load: 21.7 t ADT: 84
WISCONSIN AVE
FairOver: JEWETT CREEK
S PENNSYLVANIA AVE, Tehama, CA
Built 1948 Load: 21.7 t ADT: 200
EAST FORK ROAD
FairOver: E FK OF N FK TRINITY RIV
4.4 MI NORTH OF SR 299, Trinity, CA
Built 1938 Load: 21.7 t ADT: 15
ROAD 140
FairOver: ELK BAYOU
1.6 MI S OF SR 137, Tulare, CA
Built 1953 Load: 21.7 t ADT: 675
UNIT 2/UNIT 3 DIKE
FairOver: MARSH UNIT 2/MARSH UNT 3
0.8 MI SSW OF HDQTRS, Kern, CA
Built 1970 Load: 21.8 t ADT: 15
UNIT2/UNIT 6B DIKE
FairOver: MARSH UNT 2/MARSH UNT 6B
1.2 MI SW OF HDQTRS, Kern, CA
Built 1970 Load: 21.8 t ADT: 15
BIG OAK FLAT ROAD
FairOver: CASCADE CREEK
7.0 miles east from El Po, Mariposa, CA
Built 1939 Load: 21.8 t ADT: 2,530
IRR BIA RTE 70
FairOver: SOUTH FORK TULE RIVER
22 KM EAST OF PORTERVILLE, Tulare, CA
Built 1954 Load: 21.8 t ADT: 3,500
CRYSTAL CAVE ROAD
FairOver: MARBLE FORK KAWEAH RIVER
14.3 MI. NE OF ASH MT. EN, Tulare, CA
Built 1993 Load: 21.8 t ADT: 84
STATE ROUTE 88
FairOver: WEST FORK CARSON RIVER
10-ALP-088-12.46, Alpine, CA
Built 1939 Load: 22.0 t ADT: 2,200
PENTZ RD
FairOver: WEST BRNCH LITTLE DRY CR
1.5 MI E OF SH 99, Butte, CA
Built 1970 Load: 22.0 t ADT: 7,146
W BIGGS GRIDLEY RD
FairOver: BR SUTTER BUTTE CANAL
1.6 MI N/O GRID-COLUS HWY, Butte, CA
Built 1948 Load: 22.0 t ADT: 1,659
DOE MILL ROAD
FairOver: BUTTE CREEK CANAL
0.5 MI N SKYWAY, Butte, CA
Built 1968 Load: 22.0 t ADT: 100
SHEEP RANCH RD
FairOver: SAN ANTONIO CREEK
7.8 MI NORTH OF MURPHYS, Calaveras, CA
Built 1930 Load: 22.0 t ADT: 216
PARK & RIDE ACCESS
FairOver: PINE CREEK
04-CC-242-R0.85-CND, Contra Costa, CA
Built 1964 Load: 22.0 t ADT: 200
MILBURN DR
FairOver: GRAYSON CREEK
0.1 MI W LUCILLE LN, Contra Costa, CA
Built 1967 Load: 22.0 t ADT: 100
STATE ROUTE 180
FairOver: OFFSET DRAW
06-FRE-180-29.33, Fresno, CA
Built 1946 Load: 22.0 t ADT: 5,650
E ROSE AVE
FairOver: CROSSCUT CANAL
0.7 MI EAST OF FOWLER AVE, Fresno, CA
Built 1945 Load: 22.0 t ADT: 100
BUTLER VALLEY RD
FairOver: MAD RIVER
0.1 MI E/O BLACK CRK LN, Humboldt, CA
Built 1937 Load: 22.0 t ADT: 105
WEST END ROAD
FairOver: WARREN CREEK
0.2 MI S WARREN CREEK RD, Humboldt, CA
Built 1927 Load: 22.0 t ADT: 472
KEYSTONE RD
FairOver: WESTSIDE MAIN CANAL
0.3 MI W/O FORRESTER RD, Imperial, CA
Built 1950 Load: 22.0 t ADT: 25
WIEMAN RD
FairOver: WESTSIDE MAIN CANAL
2.3 MI S/O SR86 (HOSKINS), Imperial, CA
Built 1940 Load: 22.0 t ADT: 300
ANDRE RD
FairOver: WESTSIDE MAIN CANAL
0.6 MI W/O PELLETT RD, Imperial, CA
Built 1940 Load: 22.0 t ADT: 50
LARSEN ROAD
FairOver: CENTRAL MAIN CANAL
30 FT E/O AUSTIN RD, Imperial, CA
Built 1950 Load: 22.0 t ADT: 570
HARRIS ROAD
FairOver: CENTRAL MAIN CANAL
30 FT E/O AUSTIN RD, Imperial, CA
Built 1950 Load: 22.0 t ADT: 120
FINLEY EAST ROAD
FairOver: ADOBE CREEK
0.1 MI E OF STONE DR, Lake, CA
Built 1970 Load: 22.0 t ADT: 309
STATE ROUTE 140
FairOver: MILES CREEK
10-MPA-140-0.79, Mariposa, CA
Built 1916 Load: 22.0 t ADT: 4,650
OLD RIVER ROAD
FairOver: PARSONS CREEK
7.0 MI S/O TALMAGE RD, Mendocino, CA
Built 1948 Load: 22.0 t ADT: 515
HILLS FERRY ROAD
FairOver: SAN JOAQUIN RIVER
STANISLAUS COUNTY LINE, Merced, CA
Built 1961 Load: 22.0 t ADT: 4,660
LAKE RD
FairOver: FAIRFIELD CANAL
0.5 MI N BELLEVUE RD, Merced, CA
Built 1955 Load: 22.0 t ADT: 231
FRESNO ROAD
FairOver: MARIPOSA CREEK
0.2 MI N HAINLINE AVE, Merced, CA
Built 1930 Load: 22.0 t ADT: 55
U.S. HIGHWAY 395
FairOver: SOUTH FORK PIT RIVER
02-MOD-395-3.73, Modoc, CA
Built 1947 Load: 22.0 t ADT: 2,000
RAILROAD AVENUE
FairOver: EAST CHANNEL STUBBE WASH
0.2 MI. W/O VERBENIA AVE., Riverside, CA
Built 1934 Load: 22.0 t ADT: 240
ELKHORN BLVD
FairOver: DRY CREEK
0.3 MI W/O DRY CREEK RD, Sacramento, CA
Built 1963 Load: 22.0 t ADT: 18,664
PANOCHE ROAD
FairOver: TRES PINOS CREEK
8 MI W LITTLE PANOCHE RD, San Benito, CA
Built 1935 Load: 22.0 t ADT: 800
INTERSTATE 40
FairOver: COLORADO RIVER
08-SBD-040-R154.51, San Bernardino, CA
Built 1966 Load: 22.0 t ADT: 7,450
POPLAR ST
FairOver: SAN TIMOTEO CREEK
0.3 MI S OF REDLANDS BLVD, San Bernardino, CA
Built 1980 Load: 22.0 t ADT: 1,126
GARNET AVE
FairOver: ROSE CANYON CREEK
0.2 MI W/O MISSION BAY DR, San Diego, CA
Built 1939 Load: 22.0 t ADT: 58,500
Showing 9,601-9,650 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.