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
HAWKINS CREEK
GoodOver: BUTCHERKNIFE CREEK
NO DATA ENTERED, Shasta, CA
Built 1965 ADT: 50
SQ___ VALLEY CREEK
GoodOver: YE'T ATWAM CREEK
NO DATA ENTERED, Shasta, CA
Built 1970 ADT: 50
YREKA HEADQUARTERS
GoodOver: YREKA CREEK
GUNSIGHT, Siskiyou, CA
Built 1975 ADT: 50
MCKINNEY CREEK RD
GoodOver: MCKINNEY CREEK
GUNSIGHT, Siskiyou, CA
Built 1976 ADT: 50
WEST BEAVER ROAD
GoodOver: JAYNES CANYON
BEAVER, Siskiyou, CA
Built 1976 ADT: 50
LONG JOHN ROAD
GoodOver: COW CREEK
BEAVER, Siskiyou, CA
Built 1958 ADT: 50
GRIDER CREEK ROAD
GoodOver: GRIDER CREEK
HORSE, Siskiyou, CA
Built 1966 ADT: 50
NO DATA ENTERED
GoodOver: NORTH HUNGRY CREEK
BEAVER 1, Siskiyou, CA
Built 2004 ADT: 50
CLEAR CREEK ROAD
GoodOver: WINGATE CREEK
CLEAR CREEK, Siskiyou, CA
Built 1951 ADT: 50
MILL CK RIDGE ROAD
GoodOver: MILL CREEK
INDIAN, Siskiyou, CA
Built 1967 ADT: 50
MILL CK RIDGE ROAD
GoodOver: TRIB TO MILL CREEK
INDIAN, Siskiyou, CA
Built 1967 ADT: 50
NO DATA ENTERED
GoodOver: THOMPSON CREEK
ELK-THOMPSON, Siskiyou, CA
Built 1989 ADT: 5
NO DATA ENTERED
GoodOver: MILL CREEK
INDIAN, Siskiyou, CA
Built 1975 ADT: 40
NO DATA ENTERED
GoodOver: LITTLE ELK CREEK
ELK THOMPSON, Siskiyou, CA
Built 2004 ADT: 50
METHODIST CK ROAD
GoodOver: METHODIST CREEK
FORKS, Siskiyou, CA
Built 1966 ADT: 20
NO DATA ENTERED
GoodOver: SIGN CREEK
FORKS OF SALMON, Siskiyou, CA
Built 2005 ADT: 50
NO DATA ENTERED
GoodOver: CECIL CREEK
CECILVILLE, Siskiyou, CA
Built 2004 ADT: 50
NO DATA ENTERED
GoodOver: S FK TAYLOR CREEK
CECILVILLE, Siskiyou, CA
Built 2005 ADT: 50
SHACKLEFORD CK RD
GoodOver: SHACKLEFORD CREEK
SCOTT BAR, Siskiyou, CA
Built 1992 ADT: 50
NO DATA ENTERED
GoodOver: S FK SCOTT RIVER
CALLAHAN, Siskiyou, CA
Built 2003 ADT: 50
NO DATA ENTERED
GoodOver: BOULDER CREEK
SCOTT BAR, Siskiyou, CA
Built 2005 ADT: 50
NO DATA ENTERED
GoodOver: MILL CREEK
SCOTT BAR, Siskiyou, CA
Built 2003 ADT: 50
NO DATA ENTERED
GoodOver: SCOTT BAR MILL CREEK
SCOTT BAR, Siskiyou, CA
Built 2003 ADT: 50
NO DATA ENTERED
GoodOver: SCOTT BAR MILL CREEK
SCOTT BAR, Siskiyou, CA
Built 2003 ADT: 50
NO DATA ENTERED
GoodOver: E FK S FK SALMON RIVER
CALLAHAN, Siskiyou, CA
Built 2005 ADT: 50
BRIDGE CREEK ROAD
GoodOver: HAYPRESS CREEK
UKONOM, Siskiyou, CA
Built 1967 ADT: 50
ROCK SHANTY ROAD
GoodOver: ROCK CREEK
UKONOM, Siskiyou, CA
Built 1966 ADT: 50
ROCK SHANTY ROAD
GoodOver: BARK SHANTY GULCH
UKONOM, Siskiyou, CA
Built 1960 ADT: 50
RED HILL
GoodOver: UNNAMED CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1982 ADT: 50
DEER CREEK
GoodOver: DEER CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1975 ADT: 50
BARTLE GAP
GoodOver: MOOSEHEAD CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1985 ADT: 50
RACCOON CREEK
GoodOver: MCCLOUD RIVER
NO DATA ENTERED, Siskiyou, CA
Built 1955 ADT: 50
WHISKEY CREEK
GoodOver: TATE CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1983 ADT: 50
Bell Road
GoodOver: Delta-Mendota Canal
25 mi N San Luis Res, Stanislaus, CA
Built 1949 ADT: 5
NO DATA ENTERED
GoodOver: JORDAN CREEK
NO DATA ENTERED, Stanislaus, CA
Built 2003 ADT: 50
ROAD M2
GoodOver: FISH CREEK
32 MI. WEST OF PASKENTA, Tehama, CA
Built 1981 ADT: 50
ROAD M1
GoodOver: RATTLESNAKE CREEK
26 MI. N. OF EEL RIV.W.C., Tehama, CA
Built 1978 ADT: 50
POST CREEK
GoodOver: SOUTH FORK BEEGUM CREEK
NO DATA ENTERED, Tehama, CA
Built 1970 ADT: 50
NO DATA ENTERED
GoodOver: NO DATA ENTERED
S28 T27N R12W, Trinity, CA
Built 1974 ADT: 50
WILDWOOD-MAD RIVER
GoodOver: DARK CANYON CREEK
NO DATA ENTERED, Trinity, CA
Built 1999 ADT: 50
NO DATA ENTERED
GoodOver: BROWN'S CREEK
NO DATA ENTERED, Trinity, CA
Built 2007 ADT: 50
LIMEDYKE LOOKOUT
GoodOver: INDIAN VALLEY CREEK
NO DATA ENTERED, Trinity, CA
Built 1987 ADT: 50
BUTTER CREEK
GoodOver: BUTTER CREEK
NO DATA ENTERED, Trinity, CA
Built 1975 ADT: 50
DOUBLE PLATE
GoodOver: POST CREEK
NO DATA ENTERED, Trinity, CA
Built 1966 ADT: 50
PLUMMER PEAK
GoodOver: PHILPOT CREEK
NEAR PHILPOT CAMPGROUND, Trinity, CA
Built 2002 ADT: 50
PHILPOT CAMPGROUND
GoodOver: NORTH FORK PHILPOT CREEK
PHILPOT CAMPGROUND, Trinity, CA
Built 1966 ADT: 50
COUNTY LINE
GoodOver: BROWNS CREEK
NO DATA ENTERED, Trinity, CA
Built 1934 ADT: 50
SOLDIER CR. ROAD
GoodOver: LIMESTONE CREEK
LIMESTONE CREEK, Trinity, CA
Built 2005 ADT: 50
MAIN TULE CR. ROAD
GoodOver: TULE CREEK
NO DATA ENTERED, Trinity, CA
Built 2005 ADT: 50
NO DATA ENTERED
GoodOver: SOLDIER CREEK
NO DATA ENTERED, Trinity, CA
Built 2009 ADT: 30
Showing 17,101-17,150 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.