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
CARSON ST
FairOver: DOMINGUEZ CHAN
0.1MI E/O I-405 FWY, Los Angeles, CA
Built 1959 Load: 27.2 t ADT: 15,600
FIRESTONE BLVD
FairOver: RIO HONDO
0.5MI E/O I-710 FWY, Los Angeles, CA
Built 1933 Load: 27.2 t ADT: 47,632
ROAD 225
FairOver: WHISKEY CREEK
3 MI SE RD 274 IN N FORK, Madera, CA
Built 1964 Load: 27.2 t ADT: 1,000
EL CAPITAN CROSSOV
FairOver: MERCED RIVER
10.3 miles east from El P, Mariposa, CA
Built 1933 Load: 27.2 t ADT: 3,416
US HIGHWAY 101 NB
FairOver: ROBINSON CREEK
01-MEN-101-20.91, Mendocino, CA
Built 1963 Load: 27.2 t ADT: 7,350
EAST ROAD
FairOver: SALT HOLLOW CREEK
2.15 MI N SH 20, Mendocino, CA
Built 1940 Load: 27.2 t ADT: 4,439
CHILDS AVE
FairOver: OWENS CREEK
0.1 MI W CUNNINGHAM RD, Merced, CA
Built 1965 Load: 27.2 t ADT: 207
BUTTS ROAD
FairOver: CALIFORNIA AQUEDUCT
0.4 MI WEST OF I-5, Merced, CA
Built 1968 Load: 27.2 t ADT: 50
LOOKOUT-HACKMORE R
FairOver: PIT RIVER
0.3 MI NW OF C.R. 87, Modoc, CA
Built 1975 Load: 27.2 t ADT: 2,068
OLD COAST HIGHWAY
FairOver: BIXBY CREEK
0.94 MI SE SH 1, Monterey, CA
Built 1965 Load: 27.2 t ADT: 250
INTERSTATE 80 WB
FairOver: NYACK ROAD
03-PLA-080-54.81, Placer, CA
Built 1959 Load: 27.2 t ADT: 13,250
INTERSTATE 80 WB
FairOver: BIG BEND ROAD
03-PLA-080-R65.00L, Placer, CA
Built 1964 Load: 27.2 t ADT: 13,500
SHIRT TAIL CYN RD
FairOver: SHIRT TAIL CREEK
0.5 MI N YANKEE JIM RD, Placer, CA
Built 1940 Load: 27.2 t ADT: 25
CLIO-STATE 40A RD
FairOver: MIDDLE FORK FEATHER RIV
0.1 MILE NORTH OF SR 89, Plumas, CA
Built 1953 Load: 27.2 t ADT: 570
INTERSTATE 10 EB
FairOver: WEST SADDLE GULCH
08-RIV-010-R79.25, Riverside, CA
Built 1965 Load: 27.2 t ADT: 11,250
US HIGHWAY 101 NB
FairOver: SAN BENITO RIVER
05-SBT-101-5.21, San Benito, CA
Built 1951 Load: 27.2 t ADT: 25,500
INTERSTATE 40
FairOver: AIRPORT WASH
08-SBD-040-145.61, San Bernardino, CA
Built 1967 Load: 27.2 t ADT: 7,200
INTERSTATE 15 SB
FairOver: SOAP MINE ROAD
08-SBD-015-76.02, San Bernardino, CA
Built 1961 Load: 27.2 t ADT: 22,500
INTERSTATE 15 NB
FairOver: SOAP MINE ROAD
08-SBD-015-76.02, San Bernardino, CA
Built 1961 Load: 27.2 t ADT: 22,500
INTERSTATE 10 WB
FairOver: OAK GLEN CREEK
08-SBD-010-R36.90-YUCP, San Bernardino, CA
Built 1964 Load: 27.2 t ADT: 73,450
INTERSTATE 40 EB
FairOver: CREST WASH
08-SBD-040-R18.03, San Bernardino, CA
Built 1968 Load: 27.2 t ADT: 9,800
INTERSTATE 15 SB
FairOver: KENWOOD AVENUE
08-SBD-015-R14.96, San Bernardino, CA
Built 1969 Load: 27.2 t ADT: 79,500
LYNWOOD DR
FairOver: EAST TWIN CREEK CHANNEL
0.2 MI E VALENCIA AVE, San Bernardino, CA
Built 1961 Load: 27.2 t ADT: 10,950
STATE ROUTE 26
FairOver: DUCK CREEK
10-SJ-026-16.87, San Joaquin, CA
Built 1984 Load: 27.2 t ADT: 5,200
STATE ROUTE 4
FairOver: SAN JOAQUIN RIVER
10-SJ-004-14.15, San Joaquin, CA
Built 1933 Load: 27.2 t ADT: 19,950
STATE ROUTE 88
FairOver: BEAR CREEK
10-SJ-088-8.91, San Joaquin, CA
Built 1964 Load: 27.2 t ADT: 8,850
CHOLAME VALLEY RD
FairOver: CHOLAME CREEK
1.4 MI NW SR 46, San Luis Obispo, CA
Built 1948 Load: 27.2 t ADT: 130
GREEN VALLEY RD
FairOver: N BR GREEN VALLEY CREEK
0.3 MI N SR 46, San Luis Obispo, CA
Built 1958 Load: 27.2 t ADT: 50
BASCOM AVE
FairOver: LOS GATOS CREEK
NEAR SW EXPRESSWAY, Santa Clara, CA
Built 1972 Load: 27.2 t ADT: 28,300
PASEO REFUGIO
FairOver: TULARCITOS CREEK
NEAR HILLVIEW DR, Santa Clara, CA
Built 1981 Load: 27.2 t ADT: 1,900
STATE ROUTE 44
FairOver: COW CREEK
02-SHA-044-R7.40, Shasta, CA
Built 1964 Load: 27.2 t ADT: 7,000
GIRVAN RD
FairOver: OLNEY CREEK
0.6 MI E OF SR 273, Shasta, CA
Built 1960 Load: 27.2 t ADT: 7,730
PORT WINE RIDGE RD
FairOver: ROCK CREEK
0.5 MI W JCT CNCL HILL RD, Sierra, CA
Built 1961 Load: 27.2 t ADT: 25
HILT HUNGRY ROAD
FairOver: COTTONWOOD CREEK
1.4 MI SOUTH OF HILT RD, Siskiyou, CA
Built 1933 Load: 27.2 t ADT: 23
SANDY BAR ROAD
FairOver: TI CREEK
UKONOM, Siskiyou, CA
Built 1965 Load: 27.2 t ADT: 50
INTERSTATE 80 EB
FairOver: LYNCH ROAD
04-SOL-080-R9.65, Solano, CA
Built 1969 Load: 27.2 t ADT: 57,000
STATE ROUTE 37
FairOver: SONOMA CREEK
04-SOL-037-R0.01, Solano, CA
Built 1969 Load: 27.2 t ADT: 32,000
STATE ROUTE 116
FairOver: RUSSIAN RIVER
04-SON-116-10.46, Sonoma, CA
Built 1940 Load: 27.2 t ADT: 8,450
STWRT PT-SKGG SPRG
FairOver: HOUSE CREEK
13.5 MI E/O SR 1, Sonoma, CA
Built 1921 Load: 27.2 t ADT: 300
STATE ROUTE 99 SB
FairOver: CROSS CANAL
03-SUT-099-5.92, Sutter, CA
Built 1949 Load: 27.2 t ADT: 18,750
INTERSTATE 5 NB
FairOver: DIBBLE CREEK
02-TEH-005-R28.16, Tehama, CA
Built 1965 Load: 27.2 t ADT: 15,500
STATE ROUTE 32
FairOver: CHICO CREEK
02-TEH-032-1.55, Tehama, CA
Built 1934 Load: 27.2 t ADT: 1,050
RIDGE ROAD
FairOver: BRANCH OF RED BANK CREEK
8.7 MI SW LIVE OAK RD, Tehama, CA
Built 1957 Load: 27.2 t ADT: 80
M348 S FORK DR
FairOver: S FORK KAWEAH RIVER
4.1 MI SE CO RD M347, Tulare, CA
Built 1959 Load: 27.2 t ADT: 260
R136
FairOver: DEER CREEK
0.6 MI S OF AVE 78, Tulare, CA
Built 1955 Load: 27.2 t ADT: 750
ROAD 108
FairOver: COTTONWOOD CREEK
0.05 MI N OF AVE 368, Tulare, CA
Built 1951 Load: 27.2 t ADT: 300
STATE ROUTE 33
FairOver: POTRERO CREEK
07-VEN-033-32.10, Ventura, CA
Built 1932 Load: 27.2 t ADT: 340
STATE ROUTE 1 SB
FairOver: HUENEME RD
07-VEN-001-12.79, Ventura, CA
Built 1957 Load: 27.2 t ADT: 5,450
STATE ROUTE 23
FairOver: TIERRA REJADA ROAD
07-VEN-023-R10.16-MRPK, Ventura, CA
Built 1970 Load: 27.2 t ADT: 60,000
INTERSTATE 505 SB
FairOver: PUTAH CRK RD,PUTAH CREEK
03-YOL-505-0.01, Yolo, CA
Built 1959 Load: 27.2 t ADT: 12,000
Showing 11,201-11,250 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.