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
LOMPICO RD
GoodOver: LOMPICO CREEK
2.45 MI N ZAYANTE RD, Santa Cruz, CA
Built 1987 Load: 32.4 t ADT: 500
HUBBARD GULCH RD
GoodOver: MARSHALL CREEK
0.1 MI W OF SR 9, Santa Cruz, CA
Built 1987 Load: 32.4 t ADT: 50
HARKINS SLOUGH RD
GoodOver: W. BRANCH STRUVE SLOUGH
JUST S OF HWY 1 ON RAMP, Santa Cruz, CA
Built 2005 Load: 32.4 t ADT: 5,000
KINGS CREEK RD
GoodOver: KINGS CREEK
0.6 MILES FROM HWY 9, Santa Cruz, CA
Built 2005 Load: 32.4 t ADT: 500
KINGS CREEK RD
GoodOver: KINGS CREEK
1.0 MILES NE OF SR 9, Santa Cruz, CA
Built 2005 Load: 32.4 t ADT: 500
OLD COUNTY ROAD
GoodOver: EARL CREEK
@ BROOKS ROAD, Santa Cruz, CA
Built 2016 Load: 32.4 t ADT: 200
REDWOOD CANYON RD
GoodOver: BROWNS CREEK TRIBUTARY
0.8 MI N/O BROWNS VA RD, Santa Cruz, CA
Built 2019 Load: 32.4 t ADT: 80
Keswick Dam Road
GoodOver: KESWICK DAM SPILLWAY
4 MI NW OF REDDING, CA, Shasta, CA
Built 1942 Load: 32.4 t ADT: 1,000
INTERSTATE 5
GoodOver: SALT CREEK
02-SHA-005-R20.80, Shasta, CA
Built 1953 Load: 32.4 t ADT: 29,500
STATE ROUTE 299
GoodOver: STILLWATER CREEK
02-SHA-299-27.94, Shasta, CA
Built 1992 Load: 32.4 t ADT: 9,500
STATE ROUTE 299
GoodOver: MONTGOMERY CREEK
02-SHA-299-56.74, Shasta, CA
Built 1953 Load: 32.4 t ADT: 3,950
STATE ROUTE 299
GoodOver: BURNEY CREEK
02-SHA-299-74.85, Shasta, CA
Built 1949 Load: 32.4 t ADT: 3,600
STATE ROUTE 299
GoodOver: WEST BRANCH BURNEY CREEK
02-SHA-299-75.06, Shasta, CA
Built 1949 Load: 32.4 t ADT: 9,800
STATE ROUTE 44
GoodOver: BEAR CREEK
02-SHA-044-R14.45, Shasta, CA
Built 1978 Load: 32.4 t ADT: 3,975
STATE ROUTE 44
GoodOver: CLOUGH CREEK
02-SHA-044-R4.55, Shasta, CA
Built 1964 Load: 32.4 t ADT: 15,550
STATE ROUTE 44
GoodOver: A.C.I.D. CANAL
02-SHA-044-L0.70-RDG, Shasta, CA
Built 1965 Load: 32.4 t ADT: 37,800
INTERSTATE 5
GoodOver: ANDERSON CREEK OVERFLOW
02-SHA-005-R4.92-AND, Shasta, CA
Built 1966 Load: 32.4 t ADT: 39,000
STATE ROUTE 44
GoodOver: WEST BRANCH CHURN CREEK
02-SHA-044-R0.34-RDG, Shasta, CA
Built 1968 Load: 32.4 t ADT: 48,500
STATE ROUTE 44
GoodOver: CLOVER CREEK
02-SHA-044-R1.80-RDG, Shasta, CA
Built 1968 Load: 32.4 t ADT: 48,500
INTERSTATE 5
GoodOver: VOLLMERS ROAD
02-SHA-005-R45.95, Shasta, CA
Built 1991 Load: 32.4 t ADT: 17,100
STATE ROUTE 44
GoodOver: DESCHUTES ROAD
02-SHA-044-R7.00, Shasta, CA
Built 1986 Load: 32.4 t ADT: 7,000
INTERSTATE 5 NB
GoodOver: SACRAMENTO,UP RR,AMTRAK
02-SHA-005-R52.11, Shasta, CA
Built 1989 Load: 32.4 t ADT: 8,550
INTERSTATE 5 SB
GoodOver: FRONTAGE ROAD
02-SHA-005-52.84, Shasta, CA
Built 1989 Load: 32.4 t ADT: 8,550
INTERSTATE 5 NB
GoodOver: FRONTAGE ROAD
02-SHA-005-52.84, Shasta, CA
Built 1989 Load: 32.4 t ADT: 8,550
STATE ROUTE 299
GoodOver: CEDAR CREEK
02-SHA-299-48.18, Shasta, CA
Built 2000 Load: 32.4 t ADT: 4,750
STATE ROUTE 273
GoodOver: CLEAR CREEK
02-SHA-273-11.23, Shasta, CA
Built 1995 Load: 32.4 t ADT: 21,400
SR 89
GoodOver: CAYTON CREEK
02-SHA-089-31.21, Shasta, CA
Built 2008 Load: 32.4 t ADT: 1,700
STATE ROUTE 44
GoodOver: SACRAMENTO RIVER
02-SHA-044-L1.34-RDG, Shasta, CA
Built 2010 Load: 32.4 t ADT: 51,000
STATE ROUTE 36
GoodOver: M. FORK COTTONWOOD CREEK
02-SHA-036-7.58, Shasta, CA
Built 2005 Load: 32.4 t ADT: 570
INTERSTATE 5
GoodOver: SACRAMENTO RIVER
02-SHA-005-R39.98, Shasta, CA
Built 2016 Load: 32.4 t ADT: 17,600
INTERSTATE 5 SB
GoodOver: HILLSIDE
02-SHA-005-M29.68, Shasta, CA
Built 2019 Load: 32.4 t ADT: 9,150
INTERSTATE ROUTE 5
GoodOver: UPRR RAILROAD TRACKS
02-SHA-005-R4.53-AND, Shasta, CA
Built 2022 Load: 32.4 t ADT: 55,000
INTERSTATE ROUTE 5
GoodOver: ANDERSON CREEK
02-SHA-005-R5.04-AND, Shasta, CA
Built 2022 Load: 32.4 t ADT: 55,000
INTERSTATE 5
GoodOver: SIMS ROAD
02-SHA-005-57.41, Shasta, CA
Built 2021 Load: 32.4 t ADT: 17,100
INTERSTATE 5
GoodOver: CRAG VIEW DRIVE
02-SHA-005-66.84, Shasta, CA
Built 2021 Load: 32.4 t ADT: 18,000
LOWER GAS POINT RD
GoodOver: NORTH FORK COTTONWOOD CR
3.3 MI N OF GAS POINT RD., Shasta, CA
Built 2000 Load: 32.4 t ADT: 10
IRON MOUNTAIN ROAD
GoodOver: FLAT CREEK
IRON MTN RD 3KM N.SR 299, Shasta, CA
Built 1994 Load: 32.4 t ADT: 114
BRIDGE ST
GoodOver: FALL RIVER
IN FALL RIVER MILLS, Shasta, CA
Built 1993 Load: 32.4 t ADT: 300
OLD 44 DRIVE
GoodOver: CLOUGH CREEK
1 MI E OF OREGON TRAIL, Shasta, CA
Built 1998 Load: 32.4 t ADT: 980
HARTNELL AVE
GoodOver: WEST BRANCH CHURN CREEK
0.2 MI E CHURN CRK RD, Shasta, CA
Built 1975 Load: 32.4 t ADT: 21,027
SOUTH ST
GoodOver: A.C.I.D. CANAL
0.2 MI W ATHENS AVE, Shasta, CA
Built 1989 Load: 32.4 t ADT: 5,622
OASIS ROAD
GoodOver: NEWTOWN CREEK
0.6 MI WEST OF I-5, Shasta, CA
Built 1972 Load: 32.4 t ADT: 5,060
BLACK BUTTE RD
GoodOver: ASH CREEK
2.75 MI S OF SR 44, Shasta, CA
Built 1987 Load: 32.4 t ADT: 250
VEDDER RD
GoodOver: BURNEY CREEK
3 MI N OF BURNEY, Shasta, CA
Built 1999 Load: 32.4 t ADT: 100
BUZZARD ROOST ROAD
GoodOver: SOUTH FORK LITTLE COW CR
100' E OAK RUN RD, Shasta, CA
Built 1996 Load: 32.4 t ADT: 110
CLINE GULCH ROAD
GoodOver: CLINE GULCH
1.3 MI N/W TRTY MT RD, Shasta, CA
Built 1935 Load: 32.4 t ADT: 60
WILCOX ROAD
GoodOver: HAT CREEK
0.4 MI E OF S.R. 89, Shasta, CA
Built 1984 Load: 32.4 t ADT: 100
NELSON CREEK RD
GoodOver: NELSON CREEK
0.4 MI E BIG BEND RD, Shasta, CA
Built 1986 Load: 32.4 t ADT: 104
BRESLAUER LANE
GoodOver: A.C.I.D. CANAL
3/4 MI E OF SR 273, Shasta, CA
Built 1987 Load: 32.4 t ADT: 2,500
IRON MT. RD
GoodOver: MIDDLE CREEK
0.6 MI N OF S.R. 299, Shasta, CA
Built 1965 Load: 32.4 t ADT: 1,949
Showing 23,101-23,150 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |