Total bridges
49
Public highway bridges in Washburn County
County profile · official public datasets
Washburn County, WI
49 public highway bridges tracked in the FHWA National Bridge Inventory: 51% rated Good, 49% Fair, 0% Poor.
- 49
- Public bridges
- 51%
- Good condition
- 0%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Washburn County pairs a top-1% lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 1%
- lowest Poor share in state
- 0%
- Poor-condition share
- 49
- public highway bridges
- 1990
- 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.
Washburn County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Washburn County ranks #1 of 72 Wisconsin counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Washburn County, Wisconsin contains 49 public highway bridges. Roughly 51% are rated “Good,” 49% “Fair,” and 0% “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
51%
25 of 49 rated 7-9
Fair condition
49%
24 of 49 rated 5-6
Poor condition
0%
0 of 49 rated 4 or below
In-state Poor-share rank
#1 of 72
Among Wisconsin counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 49 NBI-tracked bridges by lowest applicable component rating.
Good 51% (25)
Fair 49% (24)
Poor 0% (0)
18.4% of Washburn County's bridges have passed the 50-year mark
9 of the 49 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 51% 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.
When Washburn County's bridges were built
49 bridges with a recorded construction year, grouped by decade
- 1920s 1
1920–1929
1 bridges
- 1950s 1
1950–1959
1 bridges
- 1960s 4
1960–1969
4 bridges
- 1970s
1970–1979
7 bridges
- 1980s
1980–1989
14 bridges
- 1990s
1990–1999
8 bridges
- 2000s
2000–2009
7 bridges
- 2010s 1
2010–2019
1 bridges
- 2020s
2020–2029
6 bridges
What this shows Construction peaked in the 1980s, when 14 of the county's bridges still in the inventory were built, which is 28.6% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1990, 6 years newer than the Wisconsin average of 1984.
How Washburn County compares with Wisconsin's closest counties by inventory size
The 5 Wisconsin counties nearest Washburn County in number of bridges, with their condition splits. Its 0% Poor share is the 1st-lowest of these 6. Its average build year of 1990 against a peer-group mean of 1984 is 6 years newer.
Showing the 5 closest of 71 Wisconsin counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Pepin County | 57 | 68.4% | 24.6% | 7% | 1985 |
| Forest County | 53 | 52.8% | 34% | 13.2% | 1984 |
| Waushara County | 53 | 47.2% | 47.2% | 5.7% | 1982 |
| Washburn County (this page) | 49 | 51% | 49% | 0% | 1990 |
| Green Lake County | 48 | 50% | 47.9% | 2.1% | 1983 |
| Iron County | 48 | 56.3% | 35.4% | 8.3% | 1986 |
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 Washburn 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 Washburn County, both outside Wisconsin so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside WI (49 bridges here).
- Mono County, CA · 49 bridges
- Yuma County, CO · 49 bridges
- Calhoun County, FL · 49 bridges
- Crawford County, GA · 49 bridges
Similar average build year
Nearest mean year-built outside WI (1990 here).
- Maricopa County, AZ · avg 1990 · 2,847 bridges
- Tarrant County, TX · avg 1990 · 2,617 bridges
- Fairfax County, VA · avg 1990 · 751 bridges
- Guilford County, NC · avg 1990 · 736 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (24)
LRD LAKESIDE RD.
FairOver: TOTOGATIC RIVER
0.8M N JCT USH 53, Washburn, WI
Built 1926 Load: 16.2 t ADT: 23
CTH E
FairOver: NAMEKAGON RIVER
0.3M S JCT USH 63, Washburn, WI
Built 1965 Load: 21.1 t ADT: 405
STH 77
FairOver: SOO LINE
3.1M E JCT CTH G, Washburn, WI
Built 1958 Load: 22.7 t ADT: 1,900
LRD GREEN VALLEY R
FairOver: YELLOW RIVER
2.1M W JCT STH 63, Washburn, WI
Built 1976 Load: 22.7 t ADT: 94
STH 77
FairOver: LITTLE FROG CREEK
2.1M E JCT USH 53, Washburn, WI
Built 1973 Load: 24.3 t ADT: 1,900
USH 53 NB
FairOver: USH 63
AT JCT WITH USH 63, Washburn, WI
Built 1986 Load: 24.3 t ADT: 2,900
USH 63
FairOver: BEAN BROOK
1.8M N JCT CTH E, Washburn, WI
Built 1967 Load: 25.9 t ADT: 4,100
LRD S FRONT ST
FairOver: YELLOW RIVER
0.1M S JCT STH 70, Washburn, WI
Built 1983 Load: 27.5 t ADT: 458
STH 48
FairOver: RED CEDAR NARROWS
0.7M E JCT CTH T, Washburn, WI
Built 1981 Load: 30.8 t ADT: 2,600
LRD BRICKMAN LAKE
FairOver: NAMEKAGON RIVER
0.1M S JCT USH 63, Washburn, WI
Built 1996 Load: 30.8 t ADT: 29
USH 63
FairOver: NAMEKAGON RIVER
2.3M N JCT USH 53 TO N, Washburn, WI
Built 1966 Load: 32.4 t ADT: 4,600
USH 63
FairOver: NAMEKAGON RIVER
0.7M N JCT USH 53 TO N, Washburn, WI
Built 1967 Load: 32.4 t ADT: 4,400
LRD LAGOON RD
FairOver: FROG CREEK
1.6M N JCT STH 77, Washburn, WI
Built 1978 Load: 32.4 t ADT: 58
USH 53 NB
FairOver: TOTOGATIC RIVER
3.0M N JCT STH 77, Washburn, WI
Built 1981 Load: 32.4 t ADT: 1,750
USH 63
FairOver: NAMEKAGON RIVER
0.9M N JCT CTH M, Washburn, WI
Built 1980 Load: 34.0 t ADT: 3,900
LRD GREENFIELD RD
FairOver: YELLOW RIVER
1.3M S JCT STH 70, Washburn, WI
Built 1982 Load: 34.0 t ADT: 94
STH 70
FairOver: USH 53
2.1M E JCT USH 63, Washburn, WI
Built 1986 Load: 34.0 t ADT: 5,680
USH 63
FairOver: YELLOW RIVER
0.7M N JCT STH 253, Washburn, WI
Built 1975 Load: 37.3 t ADT: 10,400
USH 53 NB
FairOver: NAMEKAGON RIVER
0.3M N JCT USH 63, Washburn, WI
Built 1988 Load: 37.3 t ADT: 3,400
USH 53 SB
FairOver: TOTOGATIC RIVER
2.2M S JCT CTH T, Washburn, WI
Built 1997 Load: 37.3 t ADT: 1,750
CTH I
FairOver: TOGOTATIC RIVER
4.9M W JCT STH 77, Washburn, WI
Built 1998 Load: 37.3 t ADT: 303
USH 53 SB
FairOver: YELLOW RIVER
1.7M S JCT USH 63 TO S, Washburn, WI
Built 1986 Load: 38.9 t ADT: 3,150
CTH E
FairOver: BEAN BROOK
4.1M E JCT USH 63, Washburn, WI
Built 1976 Load: 40.5 t ADT: 525
CTH A
FairOver: SOO LINE
0.5M W JCT STH 70, Washburn, WI
Built 1992 Load: 43.7 t ADT: 229
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.