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
RTE I 280N OFFRAMP
UnknownOver: SAN JOSE AVE, MUNIRAIL
04-SF-280-R2.69-SF, San Francisco, CA
Built 1964 ADT: 10,000
MONTEREY-I 280N ON
UnknownOver: I 280,SAN JOSE,MUNI,BART
04-SF-280-R2.69-SF, San Francisco, CA
Built 1964 ADT: 21,600
PAULDING/JUDSON ST
UnknownOver: RTE I 280, BART-2 TRACKS
04-SF-280-R2.21-SF, San Francisco, CA
Built 1964 ADT: 170,000
BADEN STREET
UnknownOver: RTE I 280, BART TUNNELS
04-SF-280-R2.47-SF, San Francisco, CA
Built 1964 ADT: 170,000
I 280
UnknownOver: SAN JOSE & SICKLES AVE
04-SF-280-R0.71-SF, San Francisco, CA
Built 1964 ADT: 21,600
RTE I 280 N ONRAMP
UnknownOver: SICKLES AVENUE
04-SF-280-R0.75-SF, San Francisco, CA
Built 1964 ADT: 10,000
SAN JOSE AVE
UnknownOver: SB 280 OFF-RAMP
04-SF-280-R0.90-SF, San Francisco, CA
Built 1964 ADT: 13,300
SAN JOSE, MUNIRAIL
UnknownOver: ROUTE I 280
04-SF-280-R1.46-SF, San Francisco, CA
Built 1964 ADT: 166,000
ST RTE 101 (5TH ST
UnknownOver: BAYSHORE VIADUCT
04-SF-101-4.12-SF, San Francisco, CA
Built 1955 ADT: 2,600
NB AND SB RTE 280
UnknownOver: LYELL STREET
04-SF-280-R2.91-SF, San Francisco, CA
Built 1964 ADT: 600
MONTEREY BLV EB ON
UnknownOver: SAN JOSE,I280 RAMPS,BART
04-SF-280-R2.82-SF, San Francisco, CA
Built 1964 ADT: 5,000
MONTEREY BL WB ON
UnknownOver: BOSWORTH & SB280 ONRAMP
04-SF-280-R2.87-SF, San Francisco, CA
Built 1964 ADT: 1,650
SANJOSE-I280 RAMPS
UnknownOver: BOSWORTH STREET
04-SF-280-R2.90-SF, San Francisco, CA
Built 1964 ADT: 10,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 280
04-SF-280-R2.04-SF, San Francisco, CA
Built 1964 ADT: 170,000
OCEAN AV, MUNIRAIL
UnknownOver: 280, 280 ON/OFF-RAMP
04-SF-280-R1.77-SF, San Francisco, CA
Built 1964 ADT: 153,800
GENEVA AVE
UnknownOver: ROUTE I 280
04-SF-280-R1.65-SF, San Francisco, CA
Built 1964 ADT: 166,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 280
04-SF-280-R1.06-SF, San Francisco, CA
Built 1964 ADT: 166,000
20TH STREET
UnknownOver: ROUTE 280
04-SF-280-R6.39-SF, San Francisco, CA
Built 1968 ADT: 250
18TH STREET
UnknownOver: ROUTE 280
04-SF-280-R6.57-SF, San Francisco, CA
Built 1968 ADT: 350
INTERSTATE 280
UnknownOver: CHINA BASIN VIADUCT
04-SF-280-R6.61-SF, San Francisco, CA
Built 1971 ADT: 1,500
PEDESTRIAN WALKWAY
UnknownOver: U.S. HIGHWAY 101
04-SF-101-2.61-SF, San Francisco, CA
Built 1968 ADT: 234,000
BAYSHORE BLVD
UnknownOver: ROUTE 101
04-SF-101-0.56-SF, San Francisco, CA
Built 1970 ADT: 184,500
U.S.HIGHWAY 101
UnknownOver: CESAR CHAVEZ BLVD
04-SF-101-2.95-SF, San Francisco, CA
Built 1974 ADT: 130,000
CESAR CHVZ OFFRAMP
UnknownOver: POTRERO AVENUE
04-SF-101-2.96-SF, San Francisco, CA
Built 1974 ADT: 130,000
INTERSTATE 80 EB
UnknownOver: W80-FREMONT ST OFF RAMP
04-SF-080-4.95-SF, San Francisco, CA
Built 1935 ADT: 8,600
RTE 280 NB ON-RAMP
UnknownOver: CHINA BASIN, BERRY, 6 ST
04-SF-280-T7.18-SF, San Francisco, CA
Built 1998 ADT: 2,500
RTE 280 NB OFFRAMP
UnknownOver: CHINA BASIN, BERRY, 6 ST
04-SF-280-T7.18-SF, San Francisco, CA
Built 1998 ADT: 2,500
INTERSTATE 80 WB
UnknownOver: 2ND, 3RD AND 4TH STREET
04-SF-080-4.92-SF, San Francisco, CA
Built 2008 ADT: 27,000
INTERSTATE 80 EB
UnknownOver: 2ND, 3RD, AND 4TH
04-SF-080-4.92-SF, San Francisco, CA
Built 2008 ADT: 27,000
WB80-FREMONT ST
UnknownOver: ESX,HARR,CLEM,FOLSOM,1ST
04-SF-080-5.62R-SF, San Francisco, CA
Built 2008 ADT: 16,000
W80 - HARRISON OFF
UnknownOver: STERLING-E80,BRYANT,RNCN
04-SF-080-5.50L-SF, San Francisco, CA
Built 2008 ADT: 4,850
80 WB OFF RAMP
UnknownOver: 4TH STREET
04-SF-080-4.97-SF, San Francisco, CA
Built 2008 ADT: 9,900
I 280 S, AU LINE
UnknownOver: 280/101 INTERCHANGE
04-SF-280-R4.18L-SF, San Francisco, CA
Built 1960 ADT: 15,000
I 280 N, AL LINE
UnknownOver: 280/101 INTERCHANGE
04-SF-280-R4.16R-SF, San Francisco, CA
Built 1960 ADT: 24,800
I 280N-101N (RE)
UnknownOver: 280/101 INTERCHANGE
04-SF-280-R4.16R-SF, San Francisco, CA
Built 1960 ADT: 17,700
US101N-I 280S (WL)
UnknownOver: 280/101 INTERCHANGE
04-SF-101-1.79-SF, San Francisco, CA
Built 1960 ADT: 221,000
280N - 101S (WU)
UnknownOver: 280/101 INTERCHANGE
04-SF-101-1.79-SF, San Francisco, CA
Built 1960 ADT: 4,000
80 EB ONRAMP
UnknownOver: 4TH STREET
04-SF-080-4.97-SF, San Francisco, CA
Built 2008 ADT: 9,900
BIKE & PEDESTRIAN
UnknownOver: SB 101 OFF-RMP TO CS.CHV
04-SF-101-2.91-SF, San Francisco, CA
Built 2004 ADT: 12,400
US HIGHWAY 101 SB
UnknownOver: 101 NB - 1 SB CONNECTOR
04-SF-101-R9.58-SF, San Francisco, CA
Built 2011 ADT: 8,500
US HIGHWAY 101 NB
UnknownOver: 101 NB - 1 SB CONNECTOR
04-SF-101-R9.48-SF, San Francisco, CA
Built 2015 ADT: 59,000
US HIGHWAY 101 SB
UnknownOver: RTE 1 RMPS,CRISSY,COWLES
04-SF-101-R9.35-SF, San Francisco, CA
Built 2012 ADT: 8,000
US HIGHWAY 101 NB
UnknownOver: RTE 1N, LINCOLN,MCDOWELL
04-SF-101-R9.18-SF, San Francisco, CA
Built 2015 ADT: 64,000
101N -1S CONNECTOR
UnknownOver: STATE ROUTE 1
04-SF-101-R9.40-SF, San Francisco, CA
Built 2015 ADT: 64,000
1NB-101S CONNECTOR
UnknownOver: LINCOLN BLVD
04-SF-001-7.00-SF, San Francisco, CA
Built 2012 ADT: 3,250
U.S. HIGHWAY 101
UnknownOver: 13TH ST,MISSION &OTIS ST
04-SF-101-R4.74-SF, San Francisco, CA
Built 2005 ADT: 22,000
CALTRAIN & UP RR
UnknownOver: CESAR CHAVEZ ST
JUST W O/PENNSYLVANIA AVE, San Francisco, CA
Built 1936 ADT: 20,729
PEDESTRIAN WALKWAY
UnknownOver: SAN JOSE AVE
OVER SAN JOSE AVE, San Francisco, CA
Built 1963 ADT: 36,960
RICHLAND AVE
UnknownOver: SAN JOSE AVE
SOUTH OF 34C0016, San Francisco, CA
Built 1927 ADT: 50,000
HIGHLAND AVE
UnknownOver: SAN JOSE AVE
NORTH OF 34C0015, San Francisco, CA
Built 1930 ADT: 50,000
Showing 5,901-5,950 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.