Total bridges
127
Public highway bridges in Yuba County
County profile · official public datasets
Yuba County, CA
127 public highway bridges tracked in the FHWA National Bridge Inventory: 37.8% rated Good, 55.9% Fair, 6.3% Poor.
- 127
- Public bridges
- 37.8%
- Good condition
- 6.3%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Yuba County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 45%
- lowest Poor share in state
- 6.3%
- Poor-condition share
- 127
- public highway bridges
- 1967
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Yuba County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Yuba County ranks #26 of 58 California counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.3%). Yuba County, California contains 127 public highway bridges. Roughly 37.8% are rated “Good,” 55.9% “Fair,” and 6.3% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Good condition
37.8%
48 of 127 rated 7-9
Fair condition
55.9%
71 of 127 rated 5-6
Poor condition
6.3%
8 of 127 rated 4 or below
In-state Poor-share rank
#26 of 58
Among California counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 127 NBI-tracked bridges by lowest applicable component rating.
Good 37.8% (48)
Fair 55.9% (71)
Poor 6.3% (8)
Yuba County's Poor-condition bridges carry 21,560 vehicle crossings a day
That is 3.8% of the county's reported daily bridge traffic on 6.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 2,695 crossings a day against 6,925 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 127 of 127 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
59.8% of Yuba County's bridges have passed the 50-year mark
76 of the 127 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 37.8% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 53.9% of the county's Poor-condition bridge traffic
SIMPSON LN over YUBA RIVER, built 1957, carries 11,630 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 8-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 21,560 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Yuba County's bridges were built
127 bridges with a recorded construction year, grouped by decade
- pre-1900 1
Built before 1900
1 bridges
- 1900s 3
1900–1909
3 bridges
- 1910s 4
1910–1919
4 bridges
- 1920s
1920–1929
17 bridges
- 1930s 6
1930–1939
6 bridges
- 1940s
1940–1949
7 bridges
- 1950s
1950–1959
14 bridges
- 1960s
1960–1969
15 bridges
- 1970s
1970–1979
13 bridges
- 1980s
1980–1989
11 bridges
- 1990s 6
1990–1999
6 bridges
- 2000s 5
2000–2009
5 bridges
- 2010s
2010–2019
16 bridges
- 2020s
2020–2029
9 bridges
What this shows Construction peaked in the 1920s, when 17 of the county's bridges still in the inventory were built, which is 13.4% of those with a recorded year. That cohort is now 95 to 104 years old in the 2024 inventory. Its average build year (1967) matches the California average (1970).
How Yuba County compares with California's closest counties by inventory size
The 5 California counties nearest Yuba County in number of bridges, with their condition splits. Its 6.3% Poor share is the 1st-lowest of these 6. Its average build year of 1967 against a peer-group mean of 1969 is in line with the group.
Showing the 5 closest of 57 California counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| San Francisco County | 143 | 34.3% | 51% | 14.7% | 1969 |
| Nevada County | 135 | 45.2% | 40.7% | 14.1% | 1972 |
| Lake County | 129 | 30.2% | 62% | 7.8% | 1970 |
| Yuba County (this page) | 127 | 37.8% | 55.9% | 6.3% | 1967 |
| Tuolumne County | 125 | 36% | 56.8% | 7.2% | 1964 |
| Sutter County | 121 | 33.9% | 52.9% | 13.2% | 1968 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Yuba County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Yuba County, both outside California so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside CA (127 bridges here).
- Jefferson County, ID · 127 bridges
- Harrison County, IN · 127 bridges
- Vermillion County, IN · 127 bridges
- Knox County, KY · 127 bridges
Similar average build year
Nearest mean year-built outside CA (1967 here).
- Allegheny County, PA · avg 1967 · 1,294 bridges
- Suffolk County, MA · avg 1967 · 489 bridges
- Multnomah County, OR · avg 1967 · 473 bridges
- Le Flore County, OK · avg 1967 · 469 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (127)
MCGOWAN ROAD
GoodOver: STATE ROUTE 65
03-YUB-065-R8.03, Yuba, CA
Built 1971 Load: 32.7 t ADT: 8,000
GAVIN MANDRY DRIVE
GoodOver: BRANCH OF HUTCHINSON CK
250 FEET EAST OF INTERSEC, Yuba, CA
Built 2015 Load: 32.7 t ADT: 5,100
STATE ROUTE 70
GoodOver: FIRST STREET
03-YUB-070-14.08-MVL, Yuba, CA
Built 1960 Load: 33.0 t ADT: 37,500
STATE ROUTE 65 SB
GoodOver: STATE ROUTE 70 NB
03-YUB-065-R9.16, Yuba, CA
Built 1967 Load: 33.7 t ADT: 12,000
STATE ROUTE 65 NB
GoodOver: HUTCHINSON CREEK
03-YUB-065-R7.42, Yuba, CA
Built 1971 Load: 34.0 t ADT: 8,100
STATE ROUTE 65 SB
GoodOver: HUTCHINSON CREEK
03-YUB-065-R7.44, Yuba, CA
Built 1971 Load: 34.3 t ADT: 7,200
NORTH EARL ROAD
GoodOver: BRANCH OF HUTCHINSON CK
1.2 MILES NORTH OF INTER, Yuba, CA
Built 2018 Load: 39.9 t ADT: 50
FORTY MILE ROAD
GoodOver: STATE ROUTE 65
03-YUB-065-R6.88, Yuba, CA
Built 1971 Load: 40.5 t ADT: 1,200
J ST. (S BEALE RD)
GoodOver: HUTCHINSON CREEK
0.5 MILES NORTH OF S. BEA, Yuba, CA
Built 2017 Load: 43.5 t ADT: 750
STATE ROUTE 70
GoodOver: YUBA RIVER UP RR SPUR
03-YUB-070-13.60, Yuba, CA
Built 1960 Load: 44.1 t ADT: 37,500
FEATHER RIVER BLVD
GoodOver: STATE ROUTE 70
03-YUB-070-R0.39, Yuba, CA
Built 2015 Load: 46.0 t ADT: 2,000
BROADWAY
GoodOver: CLARK SLOUGH
0.1 MI E OF FEATHER R BLV, Yuba, CA
Built 1980 Load: 47.0 t ADT: 390
OAKLEY LN
GoodOver: DRY CREEK
0.2 MI S/O DAIRY RD, Yuba, CA
Built 1980 Load: 49.2 t ADT: 650
GAVIN MANDRY DRIVE
GoodOver: BRANCH OF DRY CREEK
2.1 MILES EAST OF INTERSE, Yuba, CA
Built 2022 Load: 49.9 t ADT: 200
RAMIREZ RD
GoodOver: HONCUT CREEK
0.7 MI N/O FRUITLAND RD, Yuba, CA
Built 1980 Load: 52.5 t ADT: 540
MARYSVILLE RD
GoodOver: LITTLE DRY CREEK
2.2 MI NORTH OF S.R. 20, Yuba, CA
Built 1930 Load: 55.4 t ADT: 5,520
GAVIN MANDRY DRIVE
GoodOver: BEST SLOUGH CREEK
2.0 MILES EAST OF INTERSE, Yuba, CA
Built 2022 Load: 60.8 t ADT: 400
GAVIN MANDRY DRIVE
GoodOver: BRANCH OF BEST SLOUGH CR
1.95 MILES EAST OF INTERS, Yuba, CA
Built 2022 Load: 99.9 t ADT: 200
GAVIN MANDRY DRIVE
GoodOver: DRY CREEK
2.2 MILES EAST OF INTERSE, Yuba, CA
Built 2022 Load: 99.9 t ADT: 200
ELLIS RD
PoorOver: SIMMERLY SLOUGH
1.0 MI E OF SR 70, Yuba, CA
Built 1928 Load: 5.5 t ADT: 40
GAVIN MANDRY DRIVE
PoorOver: HUTCHINSON CREEK
1 MILE EAST OF INTERSECTI, Yuba, CA
Built 1952 Load: 10.0 t ADT: 3,400
DOOLITTLE DRIVE
PoorOver: HUTCHINSON CREEK
3.5 MILES SOUTH OF DOOLIT, Yuba, CA
Built 1952 Load: 10.0 t ADT: 3,900
WARREN SHINGLE ROA
PoorOver: HUTCHINSON CREEK
0.85 MILES EAST OF INTERS, Yuba, CA
Built 1952 Load: 10.0 t ADT: 2,000
FRENCHTOWN RD
PoorOver: DRY CREEK
2.7 MI N OF MARYSVILLE RD, Yuba, CA
Built 1927 Load: 17.2 t ADT: 490
SIMPSON LN
PoorOver: YUBA RIVER
0.5 MI SE/O E 10TH ST, Yuba, CA
Built 1957 Load: 26.9 t ADT: 11,630
PATROL ROAD
PoorOver: REEDS CREEK TRIBUTARY
1.0 MILE WEST OF NORTH BE, Yuba, CA
Built 1942 Load: 27.2 t ADT: 50
PATROL ROAD
PoorOver: REEDS CREEK TRIBUTARY
1.1 MILES WEST OF NORTH B, Yuba, CA
Built 1942 Load: 27.2 t ADT: 50
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.