Total Bridges
27,040
Public highway bridges in California
State profile · Below median Poor share
California bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in California, based on the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
Data updated May 2026
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges whose lowest applicable component is rated 0-4
-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 - Poor-condition share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below California on the same metric.
OH
Ohio
4.54% top marginal rate
NJ
New Jersey
4.59% top marginal rate
CA
California
4.60% top marginal rate
AR
Arkansas
4.71% top marginal rate
WA
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
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
PoorOver: 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
17TH STREET
UnknownOver: E ST-S5 ON RAMP
11-SD-005-R15.11-SD, San Diego, CA
Built 1928 ADT: 4,800
AERO DRIVE
UnknownOver: ROUTE 15
11-SD-015-R8.37-SD, San Diego, CA
Built 1981 ADT: 243,000
BALBOA AVE WB
UnknownOver: ROUTE15
11-SD-015-R9.25-SD, San Diego, CA
Built 1982 ADT: 207,000
BALBOA AVE EB
UnknownOver: ROUTE15
11-SD-015-R9.23-SD, San Diego, CA
Built 1982 ADT: 207,000
N15-BALBOA WB OFF
UnknownOver: I-15,BALBOA,MURPHY CYN
11-SD-015-R9.27-SD, San Diego, CA
Built 1982 ADT: 8,100
BALBOA AVE-S15 ON
UnknownOver: MURPHY CANYON ROAD
11-SD-015-R9.22-SD, San Diego, CA
Built 1982 ADT: 2,630
BALBOA AVE WB
UnknownOver: MURPHY CANYON RD
11-SD-000-0.00-SD, San Diego, CA
Built 1982 ADT: 2,630
BALBOA AVE EB
UnknownOver: MURPHY CANYON RD
11-SD-000-0.00-SD, San Diego, CA
Built 1982 ADT: 2,630
N15-W8 CONNECTOR
UnknownOver: I-15, I-8, RAMP & LOCAL
11-SD-015-R6.01-SD, San Diego, CA
Built 1986 ADT: 13,400
INTERSTATE 15
UnknownOver: CAMINO DEL RIO SOUTH
11-SD-015-R6.03-SD, San Diego, CA
Built 1986 ADT: 13,400
E8-S15 CONNECTOR
UnknownOver: CAMINO DEL RIO SOUTH
11-SD-008-5.62-SD, San Diego, CA
Built 1986 ADT: 11,400
S15-E/W8 CONNECTOR
UnknownOver: I-15 & I-8
11-SD-015-R6.06-SD, San Diego, CA
Built 1984 ADT: 300
S15-CAMINO DEL RIO
UnknownOver: I 8 & CONNECTOR RMPS
11-SD-015-R6.12-SD, San Diego, CA
Built 1986 ADT: 240,000
N15-E8 CONNECTOR
UnknownOver: CAMINO DEL RIO SO, RAMPS
11-SD-015-R6.00-SD, San Diego, CA
Built 1986 ADT: 13,400
W8-N15 CONNECTOR
UnknownOver: FAIRMOUNT AVE-W8 ON-RAMP
11-SD-008-5.79-SD, San Diego, CA
Built 1984 ADT: 25,000
INTERSTATE 15 SB
UnknownOver: GOPHER CANYON ROAD
11-SD-015-R40.85, San Diego, CA
Built 1980 ADT: 125,000
INTERSTATE 15 NB
UnknownOver: GOPHER CANYON ROAD
11-SD-015-R40.84, San Diego, CA
Built 1980 ADT: 125,000
DEER SPRINGS RD
UnknownOver: ROUTE 15
11-SD-015-R36.64, San Diego, CA
Built 1979 ADT: 125,000
INTERSTATE 15 SB
UnknownOver: NUTMEG STREET
11-SD-015-R34.22-ESD, San Diego, CA
Built 1978 ADT: 2,500
INTERSTATE 15 NB
UnknownOver: NUTMEG STREET
11-SD-015-R34.22-ESD, San Diego, CA
Built 1978 ADT: 2,500
MISSION ROAD
UnknownOver: ROUTE 15
11-SD-015-R50.59, San Diego, CA
Built 1983 ADT: 140,000
RAINBOW VLY BLVD
UnknownOver: ROUTE 15
11-SD-015-R54.07, San Diego, CA
Built 1985 ADT: 140,000
KEARNY VILLA ROAD
UnknownOver: ROUTE 163,S163-KEARNY VI
11-SD-163-R10.84-SD, San Diego, CA
Built 1982 ADT: 5,000
STATE ROUTE 163
UnknownOver: INTERSTATE 15
11-SD-163-R11.13-SD, San Diego, CA
Built 1982 ADT: 85,500
MIRAMAR WAY
UnknownOver: INTERSTATE 15 & HOV
11-SD-015-M13.33-SD, San Diego, CA
Built 1982 ADT: 305,000
POMERADO ROAD
UnknownOver: I-15, RAMPS, HOV
11-SD-015-M14.29-SD, San Diego, CA
Built 1982 ADT: 237,000
CENTRE CITY-N15
UnknownOver: N15 - CENTRE CITY PKWY
11-SD-015-R33.94-ESD, San Diego, CA
Built 1978 ADT: 3,000
E75-N5 CONNECTOR
UnknownOver: I 5, CONNS, STREETS
11-SD-075-R21.97-SD, San Diego, CA
Built 1969 ADT: 7,100
CLAIRMONT MESA BL
UnknownOver: ROUTE15
11-SD-015-R10.00-SD, San Diego, CA
Built 1985 ADT: 193,000
MISSION CENTER RD
UnknownOver: INTERSTATE 8
11-SD-008-3.04-SD, San Diego, CA
Built 1978 ADT: 219,000
CONVOY STREET
UnknownOver: STATE ROUTE 52
11-SD-052-5.48, San Diego, CA
Built 1987 ADT: 123,000
STATE ROUTE 163
UnknownOver: SR 52 & CONNECTORS
11-SD-163-9.63, San Diego, CA
Built 1988 ADT: 20,000
KEARNY VILLA ROAD
UnknownOver: STATE ROUTE 52 & RAMPS
11-SD-052-6.98-SD, San Diego, CA
Built 1988 ADT: 108,000
PEDESTRIAN WALKWAY
UnknownOver: NB FAIRMOUNT AV-E&W8 ON
11-SD-008-6.31-SD, San Diego, CA
Built 1979 ADT: 31,000
INTERSTATE 15 SB
UnknownOver: CAMINO DEL NORTE
11-SD-015-M21.92-SD, San Diego, CA
Built 1982 ADT: 34,700
INTERSTATE 15 NB
UnknownOver: CAMINO DEL NORTE
11-SD-015-M21.92-SD, San Diego, CA
Built 1982 ADT: 34,700
AMMO ROAD
UnknownOver: ROUTE 15
11-SD-015-M12.96-SD, San Diego, CA
Built 1982 ADT: 303,000
E8-N67 CONNECTOR
UnknownOver: I 8 & SR 67, CONNECTORS
11-SD-008-15.62-ECJ, San Diego, CA
Built 1985 ADT: 165,000
S5-S75 CONNECTOR
UnknownOver: CESAR,LOGAN,NATIONAL,NE
11-SD-005-R14.16-SD, San Diego, CA
Built 1969 ADT: 1,000
H AVENUE
UnknownOver: ROUTE 15
11-SD-015-M11.46-SD, San Diego, CA
Built 1985 ADT: 191,000
DEL LAGO\BEETHOVEN
UnknownOver: INTERSTATE 15 W/HOV
11-SD-015-M27.27-ESD, San Diego, CA
Built 1985 ADT: 231,000
S15&56-S15 HOV CON
UnknownOver: I 15 SB
11-SD-056-8.92-SD, San Diego, CA
Built 1986 ADT: 98,000
N15 HOV-N15&W56 CO
UnknownOver: INTERSTATE 15 NB
11-SD-015-M19.03, San Diego, CA
Built 1986 ADT: 115,000
S5-E54 CONNECTOR
UnknownOver: I 5, SWEETWATER,MTDB LRT
11-SD-005-9.40-NATC, San Diego, CA
Built 1988 ADT: 154,000
E78-S15 CONNECTOR
UnknownOver: MISSION AVE
11-SD-078-R16.49-ESD, San Diego, CA
Built 1977 ADT: 25,700
E&W54-N805 CONNECT
UnknownOver: EUCLID AVENUE
11-SD-054-1.83, San Diego, CA
Built 1974 ADT: 7,200
STATE ROUTE 125 SB
UnknownOver: I 8 & CONNECTORS
11-SD-125-R15.35-LMSA, San Diego, CA
Built 1993 ADT: 5,000
STATE ROUTE 125 NB
UnknownOver: INTERSTATE 8 & RAMPS
11-SD-125-R15.35-LMSA, San Diego, CA
Built 1990 ADT: 218,000
E8-S125 CONNECTOR
UnknownOver: LA MESA BL & S125-GRSMNT
11-SD-008-11.94-LMSA, San Diego, CA
Built 1990 ADT: 2,600
W8-S125 CONNECTOR
UnknownOver: I 8 & SR 125, & CONNS
11-SD-008-12.32-LMSA, San Diego, CA
Built 1989 ADT: 2,600
Showing 5,551-5,600 of 27,040 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.