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
NCTD LRT
UnknownOver: LA MOREE ROAD
80 FT S/O BARHAM DR, San Diego, CA
Built 2008 ADT: 7,100
NCTD LRT
UnknownOver: BARHAM DRIVE
0.52MI E/O TWIN OAKS VLY, San Diego, CA
Built 2008 ADT: 17,071
POC
UnknownOver: HARBOR DR.
75FT S/O PARK BLVD, San Diego, CA
Built 2010 ADT: 40,000
CAM. DEL NORTE POC
UnknownOver: CAMINO DEL NORTE
230FT S/O BERNARDO CTR DR, San Diego, CA
Built 2012 ADT: 33,120
PEDESTRIANS
UnknownOver: OLYMPIC PARKWAY
100FT W/O E. PALOMAR RD, San Diego, CA
Built 2007 ADT: 37,800
PED. / BICYCLE
UnknownOver: LA MEDIA ROAD
225 FT S/O E. PALOMAR, San Diego, CA
Built 2002 ADT: 37,800
PED / BICYCLE
UnknownOver: OLYMPIC PARKWAY
60FT W/O SANTA VENETIA, San Diego, CA
Built 2005 ADT: 37,800
SHOAL CRK DR
UnknownOver: TED WILLIAM PKWY
0.9M E/O ROUTE 15, San Diego, CA
Built 2015 ADT: 11,148
SCRIPPS POC
UnknownOver: LA JOLLA SHORES DR
1.2MI N/O TORREY PINES RD, San Diego, CA
Built 1993 ADT: 11,000
ROUTE 35
UnknownOver: SUNSET BLVD
04-SF-035-2.12-SF, San Francisco, CA
Built 1931 ADT: 2,000
INTERSTATE 80
UnknownOver: YERBA BUENA ISLAND
04-SF-080-7.85L-SF, San Francisco, CA
Built 1936 ADT: 248,000
INTERSTATE 80
UnknownOver: YERBA BUENA ISLAND
04-SF-080-7.85L-SF, San Francisco, CA
Built 2007 ADT: 248,000
MISSION STREET
UnknownOver: ROUTE I 280
04-SF-280-R3.11-SF, San Francisco, CA
Built 1963 ADT: 170,000
MISSION STREET
UnknownOver: ALEMANY BLVD
04-SF-280-R3.11-SF, San Francisco, CA
Built 1951 ADT: 19,200
ALEMANY BLVD
UnknownOver: STATE RTE 1 (SPANS 4&5)
04-SF-001-R0.11-SF, San Francisco, CA
Built 1950 ADT: 122,000
INTERSTATE 280
UnknownOver: ALEMANY BLVD
04-SF-280-R0.46-SF, San Francisco, CA
Built 1966 ADT: 12,870
U.S. HIGHWAY 101
UnknownOver: 3RD STREET
04-SF-101-0.77-SF, San Francisco, CA
Built 1954 ADT: 2,000
U.S. HIGHWAY 101
UnknownOver: 3RD STREET
04-SF-101-0.77-SF, San Francisco, CA
Built 1955 ADT: 550
PEDESTRIAN WALKWAY
UnknownOver: U.S. HIGHWAY 101
04-SF-101-0.70-SF, San Francisco, CA
Built 1970 ADT: 189,000
SILVER AVE
UnknownOver: ROUTE 101
04-SF-101-1.77-SF, San Francisco, CA
Built 1954 ADT: 196,000
U.S. HIGHWAY 101
UnknownOver: 280/101 IC - ALEMANY CIR
04-SF-101-2.03-SF, San Francisco, CA
Built 1950 ADT: 500
U.S. HIGHWAY 101
UnknownOver: CESAR CHAVEZ BLVD
04-SF-101-2.92-SF, San Francisco, CA
Built 1951 ADT: 1,500
U.S. HIGHWAY 101
UnknownOver: CESAR CHAVEZ BLVD
04-SF-101-2.95-SF, San Francisco, CA
Built 1974 ADT: 500
23RD STREET
UnknownOver: U.S. HIGHWAY 101
04-SF-101-3.37-SF, San Francisco, CA
Built 1953 ADT: 234,000
STATE ROUTE 1
UnknownOver: BROTHERHOOD WAY
04-SF-001-R0.31-SF, San Francisco, CA
Built 1952 ADT: 550
U.S. HIGHWAY 101
UnknownOver: CORTLAND AVENUE
04-SF-101-2.28-SF, San Francisco, CA
Built 1950 ADT: 750
INTERSTATE 280
UnknownOver: CALTRAIN,UP RR,CITY STS
04-SF-280-R4.40L-SF, San Francisco, CA
Built 1965 ADT: 600
N101 CESAR OFFRMP
UnknownOver: SB101 BAYSHORE OFF-RAMP
04-SF-101-2.84-SF, San Francisco, CA
Built 1950 ADT: 500
18TH STREET POC
UnknownOver: U.S. HIGHWAY 101
04-SF-101-3.96-SF, San Francisco, CA
Built 1953 ADT: 234,000
25TH ST POC
UnknownOver: U.S. HIGHWAY 101
04-SF-101-3.22-SF, San Francisco, CA
Built 1953 ADT: 234,000
22ND STREET POC
UnknownOver: U.S. HIGHWAY 101
04-SF-101-3.53-SF, San Francisco, CA
Built 1953 ADT: 234,000
U.S. HIGHWAY 101
UnknownOver: PAUL AVE
04-SF-101-1.11-SF, San Francisco, CA
Built 1954 ADT: 1,500
U.S. HIGHWAY 101
UnknownOver: BACON STREET
04-SF-101-1.41-SF, San Francisco, CA
Built 1954 ADT: 1,200
U.S. HIGHWAY 101
UnknownOver: BACON STREET
04-SF-101-1.41-SF, San Francisco, CA
Built 1960 ADT: 1,000
U.S. HIGHWAY 101
UnknownOver: BLANKEN AVE
04-SF-101-0.18-SF, San Francisco, CA
Built 1954 ADT: 65
ROUTE 101N ONRAMP
UnknownOver: ALEMANY CIR UC (NBD O-R)
04-SF-101-2.20-SF, San Francisco, CA
Built 1950 ADT: 900
SB ROUTE 101 ONRMP
UnknownOver: ALEMANY CIR
04-SF-101-2.00-SF, San Francisco, CA
Built 1954 ADT: 1,200
101 AND 280
UnknownOver: 280/101 INTERCHANGE
04-SF-101-1.63-SF, San Francisco, CA
Built 1960 ADT: 10,000
S280-S101 CONNECTR
UnknownOver: N101-N280 CONNECTOR RAMP
04-SF-280-R4.07L-SF, San Francisco, CA
Built 1966 ADT: 24,800
I 280 - 101S (WU)
UnknownOver: 280/101 INTERCHANGE
04-SF-101-1.48-SF, San Francisco, CA
Built 1960 ADT: 222,000
S101-S280 CONNECTO
UnknownOver: 280/101 IC -ALEMANY BLVD
04-SF-101-1.94-SF, San Francisco, CA
Built 1960 ADT: 450
ALEMANY BLVD NB
UnknownOver: ROUTE I 280
04-SF-280-R3.87-SF, San Francisco, CA
Built 1963 ADT: 170,000
ALEMANY BLVD SB
UnknownOver: ROUTE I 280
04-SF-280-R3.28-SF, San Francisco, CA
Built 1963 ADT: 170,000
JUSTIN DRIVE
UnknownOver: ROUTE I 280
04-SF-280-R3.23-SF, San Francisco, CA
Built 1963 ADT: 170,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 280
04-SF-280-R3.53-SF, San Francisco, CA
Built 1963 ADT: 170,000
U.S. HIGHWAY 101
UnknownOver: I-80 & US 101 RAMPS,STRS
04-SF-101-R4.25L-SF, San Francisco, CA
Built 1955 ADT: 199,000
THERESA ST POC
UnknownOver: RTE I 280S ONRAMP
04-SF-280-R2.62-SF, San Francisco, CA
Built 1964 ADT: 170,000
I280S OFF-MONTEREY
UnknownOver: I 280,SAN JOSE,MUNI,BART
04-SF-280-R2.72-SF, San Francisco, CA
Built 1964 ADT: 10,000
ROUTE I 280 SB
UnknownOver: SAN JOSE AVE, MUNIRAIL
04-SF-280-R2.70-SF, San Francisco, CA
Built 1964 ADT: 10,000
ROUTE I 280
UnknownOver: SAN JOSE AVE, MUNIRAIL
04-SF-280-R2.70-SF, San Francisco, CA
Built 1964 ADT: 10,000
Showing 5,851-5,900 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.