Total bridges
240
Public highway bridges in Sheboygan County
County profile · official public datasets
Sheboygan County, WI
240 public highway bridges tracked in the FHWA National Bridge Inventory: 39.2% rated Good, 55.4% Fair, 5.4% Poor.
- 240
- Public bridges
- 39.2%
- Good condition
- 5.4%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Sheboygan County pairs a better-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- Top 40%
- lowest Poor share in state
- 5.4%
- Poor-condition share
- 240
- public highway bridges
- 1979
- 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.
Sheboygan County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Sheboygan County ranks #29 of 72 Wisconsin counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.4%). Sheboygan County, Wisconsin contains 240 public highway bridges. Roughly 39.2% are rated “Good,” 55.4% “Fair,” and 5.4% “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
39.2%
94 of 240 rated 7-9
Fair condition
55.4%
133 of 240 rated 5-6
Poor condition
5.4%
13 of 240 rated 4 or below
In-state Poor-share rank
#29 of 72
Among Wisconsin counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 240 NBI-tracked bridges by lowest applicable component rating.
Good 39.2% (94)
Fair 55.4% (133)
Poor 5.4% (13)
Sheboygan County's Poor-condition bridges carry 2,947 vehicle crossings a day
That is 0.3% of the county's reported daily bridge traffic on 5.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 227 crossings a day against 3,126 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 240 of 240 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
36.3% of Sheboygan County's bridges have passed the 50-year mark
87 of the 240 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 39.2% 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 26.8% of the county's Poor-condition bridge traffic
LRD S STAFFORD ST over MULLET RIVER, built 1920, carries 790 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 13-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 2,947 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Sheboygan County's bridges were built
240 bridges with a recorded construction year, grouped by decade
- 1900s 1
1900–1909
1 bridges
- 1910s 1
1910–1919
1 bridges
- 1920s 8
1920–1929
8 bridges
- 1930s 12
1930–1939
12 bridges
- 1940s 2
1940–1949
2 bridges
- 1950s 17
1950–1959
17 bridges
- 1960s
1960–1969
25 bridges
- 1970s
1970–1979
45 bridges
- 1980s
1980–1989
51 bridges
- 1990s
1990–1999
37 bridges
- 2000s 15
2000–2009
15 bridges
- 2010s 14
2010–2019
14 bridges
- 2020s 12
2020–2029
12 bridges
What this shows Construction peaked in the 1980s, when 51 of the county's bridges still in the inventory were built, which is 21.3% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1979, 5 years older than the Wisconsin average of 1984.
How Sheboygan County compares with Wisconsin's closest counties by inventory size
The 5 Wisconsin counties nearest Sheboygan County in number of bridges, with their condition splits. Its 5.4% Poor share is the 1st-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1983 is in line with the group.
Showing the 5 closest of 71 Wisconsin counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Dunn County | 245 | 45.7% | 45.3% | 9% | 1982 |
| Green County | 244 | 45.5% | 45.9% | 8.6% | 1978 |
| Sheboygan County (this page) | 240 | 39.2% | 55.4% | 5.4% | 1979 |
| Wood County | 239 | 62.3% | 31.8% | 5.9% | 1986 |
| Buffalo County | 238 | 63% | 28.6% | 8.4% | 1987 |
| Eau Claire County | 236 | 42.8% | 49.6% | 7.6% | 1982 |
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 Sheboygan 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 Sheboygan County, both outside Wisconsin so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside WI (240 bridges here).
- Jefferson Davis County, LA · 240 bridges
- St. Louis city County, MO · 240 bridges
- Carroll County, TN · 240 bridges
- Marshall County, TN · 240 bridges
Similar average build year
Nearest mean year-built outside WI (1979 here).
- Pima County, AZ · avg 1979 · 1,150 bridges
- Jefferson County, KY · avg 1979 · 662 bridges
- Spartanburg County, SC · avg 1979 · 638 bridges
- McPherson County, KS · avg 1979 · 586 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (133)
LRD RANGE LINE RD
FairOver: PIGEON RIVER
0.5M N JCT CTH J, Sheboygan, WI
Built 1979 Load: 35.6 t ADT: 117
IH 43 NB-STH 32 NB
FairOver: LRD AMSTERDAM RD
4.5M N JCT CTH D TO E, Sheboygan, WI
Built 1975 Load: 35.6 t ADT: 14,100
IH 43 SB-STH 32 SB
FairOver: LRD AMSTERDAM RD
1.2M S JCT STH 32 TO N, Sheboygan, WI
Built 1975 Load: 35.6 t ADT: 14,100
CTH PP INDIANA AVE
FairOver: CNW RR
1.0M E JCT CTH TA TO N, Sheboygan, WI
Built 1986 Load: 35.6 t ADT: 8,100
STH 67
FairOver: MULLET RIVER
0.8M N JCT STH 23, Sheboygan, WI
Built 1981 Load: 35.6 t ADT: 5,900
CTH W
FairOver: CHAMBERS CREEK
0.4M E JCT STH 28, Sheboygan, WI
Built 1989 Load: 35.6 t ADT: 368
STH 42 (CALUMET DR
FairOver: PIGEON RIVER
1.0M N JCT CTH AB, Sheboygan, WI
Built 1993 Load: 35.6 t ADT: 14,300
LRD GEORGIA AVE
FairOver: CNW RR
0.3M W JCT STH 42, Sheboygan, WI
Built 1992 Load: 35.6 t ADT: 2,787
CTH EE
FairOver: FISHERMAN CREEK
0.8M E JCT CTH KK, Sheboygan, WI
Built 1952 Load: 35.6 t ADT: 940
CTH FF
FairOver: PIGEON RIVER
0.1M E JCT STH 42, Sheboygan, WI
Built 1986 Load: 37.3 t ADT: 500
LRD SUPERIOR AVE
FairOver: CNW RR
0.4M W JCT STH 42, Sheboygan, WI
Built 1987 Load: 37.3 t ADT: 6,300
LRD GEORGIA AVE
FairOver: CNW RR
0.1M W JCT STH 42, Sheboygan, WI
Built 1983 Load: 37.3 t ADT: 2,300
LRD BLUEBERRY LA
FairOver: MULLET RIVER
0.6M S JCT CTH PP, Sheboygan, WI
Built 1993 Load: 37.3 t ADT: 784
CTH W
FairOver: ONION RIVER
0.2M W JCT CTH OO, Sheboygan, WI
Built 1997 Load: 37.3 t ADT: 850
LRD MAIN RD
FairOver: SHEBOYGAN RIVER
0.2M N JCT CTH A, Sheboygan, WI
Built 1998 Load: 37.3 t ADT: 277
STH 23 EB
FairOver: STH 57
AT JCT STH 23-STH 57, Sheboygan, WI
Built 1984 Load: 38.9 t ADT: 9,450
STH 23 WB
FairOver: STH 57
AT JCT STH 23-STH 57, Sheboygan, WI
Built 1989 Load: 38.9 t ADT: 9,450
STH 23 EB
FairOver: LRD SUNSET DRIVE / RR
0.5M E JCT CTH C, Sheboygan, WI
Built 1985 Load: 38.9 t ADT: 6,100
LRD SAUK TRAIL HIG
FairOver: CNW RR
0.1M S JCT STH 42, Sheboygan, WI
Built 1978 Load: 38.9 t ADT: 9,200
STH 23 (ERIE ST)
FairOver: CNW RR
2.8M E JCT IH 43 TO S, Sheboygan, WI
Built 1980 Load: 38.9 t ADT: 19,500
CTH C
FairOver: SHEBOYGAN RIVER
0.5M E JCT CTH TT, Sheboygan, WI
Built 1985 Load: 38.9 t ADT: 3,000
CTH Y
FairOver: PIGEON RIVER
0.3M N JCT CTH O, Sheboygan, WI
Built 1986 Load: 38.9 t ADT: 6,700
STH 23 EB
FairOver: STH 67
1.0M E JCT CTH C, Sheboygan, WI
Built 1985 Load: 40.5 t ADT: 8,000
LRD 18TH STREET
FairOver: FISHERMANS CREEK
0.5M N JCT CTHEE, Sheboygan, WI
Built 1998 Load: 40.5 t ADT: 740
STH 42-MADISON AVE
FairOver: PIGEON RIVER
2.6M N JCT CTH Y, Sheboygan, WI
Built 1983 Load: 42.1 t ADT: 6,300
CTH M
FairOver: SHEBOYGAN RIVER
0.9M N JCT CTH O, Sheboygan, WI
Built 1989 Load: 42.1 t ADT: 292
LRD PLAYBIRD RD
FairOver: PIGEON RIVER
0.3M E JCT STH 32, Sheboygan, WI
Built 1988 Load: 42.1 t ADT: 387
CTH A
FairOver: ONION RIVER
0.4M E JCT CTH KW, Sheboygan, WI
Built 1990 Load: 42.1 t ADT: 1,600
LRD ORIOLE LANE
FairOver: PIGEON RIVER
0.1M E JCT STH 32, Sheboygan, WI
Built 1995 Load: 42.1 t ADT: 5,375
STH 32
FairOver: ONION RIVER
0.6M N JCT CTH A, Sheboygan, WI
Built 1990 Load: 43.7 t ADT: 2,200
CTH TA TAYLOR DRI
FairOver: SHEBOYGAN RIVER
0.1M N JCT CTH PP, Sheboygan, WI
Built 1985 Load: 43.7 t ADT: 7,250
LRD WILSON-LIMA RD
FairOver: BLACK RIVER
1.0M E JCT CTH KK, Sheboygan, WI
Built 1934 Load: 45.7 t ADT: 40
CTH A
FairOver: ONION RIVER
0.7M E JCT CTH GW, Sheboygan, WI
Built 1986 Load: 51.8 t ADT: 1,600
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.