Fatal crash rate · Wisconsin · Road
Fatal crashes on SR-100 in Wisconsin
Every fatal crash NHTSA coded to State Route 100, also written as S 108th St, in Wisconsin, 2020 to 2024, with the year, the county and what the record says about each. Fatal crashes only, and a count, not a rate: the federal record has no traffic volume for a road.
SR-100 in Wisconsin2020 to 2024 · fatal crashes recorded by NHTSA
17fatal crashes over five years · 19 deaths
Over 2020 to 2024, NHTSA recorded 17 fatal crashes on SR-100 in Wisconsin, in which 19 people died. That is 1% of the 2,749 fatal crashes recorded in Wisconsin in those years, about 3 a year. In 2024, the latest year, 6 were recorded.
- Counted
- FARS crashes 2020 to 2024 in Wisconsin whose TWAY_ID or TWAY_ID2 begins SR-100, with or without a local name (S 108th St)
- Share
- 17 ÷ 2,749 fatal crashes in Wisconsin = 1%
Every year, 2020 to 2024
| Year | Fatal crashes on SR-100 | Deaths | Fatal crashes in Wisconsin | Share |
|---|---|---|---|---|
| 2020 | 2 | 2 | 559 | 0% |
| 2021 | 2 | 2 | 572 | 0% |
| 2022 | 4 | 6 | 556 | 1% |
| 2023 | 3 | 3 | 533 | 1% |
| 2024 | 6 | 6 | 529 | 1% |
2024 is NHTSA’s Annual Report File and will be revised when the final file replaces it.
Where on SR-100: by county, 2020 to 2024
The counties the crashes were coded to, alphabetical. A road’s count in a county depends on how many miles of it run there and how busy they are; the page does not rank the counties. Each name opens the county page with its own rate.
What the record says about those crashes, 2020 to 2024
Every figure is a count of the 17 fatal crashes NHTSA coded to SR-100 in Wisconsin over five years, from the fields FARS records. Nothing is estimated or inferred.
| Road type | Crashes | Share |
|---|---|---|
| Interstate | 0 | 0% |
| Other freeway or expressway | 0 | 0% |
| Other principal arterial | 16 | 94% |
| Minor arterial | 1 | 6% |
| Major collector | 0 | 0% |
| Minor collector | 0 | 0% |
| Local road | 0 | 0% |
| Unknown or not reported | 0 | 0% |
| Rural | 0 | 0% |
| Urban | 17 | 100% |
| Time of day | Crashes | Share |
|---|---|---|
| Midnight to 5:59 am | 4 | 24% |
| 6 am to 11:59 am | 4 | 24% |
| Noon to 5:59 pm | 5 | 29% |
| 6 pm to 11:59 pm | 4 | 24% |
| Hour unknown | 0 | 0% |
| Light | Crashes | Share |
|---|---|---|
| Daylight | 6 | 35% |
| Dark, not lighted (or lighting unknown) | 2 | 12% |
| Dark, lighted | 7 | 41% |
| Dawn or dusk | 2 | 12% |
| Unknown or not reported | 0 | 0% |
| Day of week | Crashes | Share |
|---|---|---|
| Sunday | 3 | 18% |
| Monday | 2 | 12% |
| Tuesday | 4 | 24% |
| Wednesday | 3 | 18% |
| Thursday | 1 | 6% |
| Friday | 1 | 6% |
| Saturday | 3 | 18% |
| Month | Crashes | Share |
|---|---|---|
| January | 3 | 18% |
| February | 0 | 0% |
| March | 1 | 6% |
| April | 2 | 12% |
| May | 1 | 6% |
| June | 2 | 12% |
| July | 1 | 6% |
| August | 1 | 6% |
| September | 2 | 12% |
| October | 2 | 12% |
| November | 1 | 6% |
| December | 1 | 6% |
| Weather | Crashes | Share |
|---|---|---|
| Clear | 10 | 59% |
| Cloudy | 6 | 35% |
| Rain | 1 | 6% |
| Snow, sleet or freezing rain | 0 | 0% |
| Fog, smog or smoke | 0 | 0% |
| Severe wind, blowing sand or other | 0 | 0% |
| Unknown or not reported | 0 | 0% |
| Involving | Crashes | Share |
|---|---|---|
| A pedestrian | 4 | 24% |
| A bicyclist or other cyclist | 0 | 0% |
| A speeding-related vehicle | 9 | 53% |
| A driver police reported as drinking | 5 | 29% |
| A large truck (over 10,000 lb) | 3 | 18% |
| A motorcycle | 2 | 12% |
| A hit-and-run vehicle | 2 | 12% |
| A teen driver (15 to 19) | 2 | 12% |
Road type is FARS FUNC_SYS for the crash, which can differ from the route’s class where a crash was coded on a frontage road or ramp; speeding is any vehicle coded SPEEDREL 2 to 5; drinking is any driver coded DRINKING = 1 (police-reported, not a blood-alcohol test).
How this is counted
- The road is the designation FARS wrote. Each crash in NHTSA’s Fatality Analysis Reporting System names the trafficway it was on (
TWAY_ID) and, at an intersection, a second one (TWAY_ID2). NHTSA standardises the route designation (I-45,US-59,SR-6) and the police often add a local name after it (I-45/NORTH FWY) or a ramp or frontage word. The page counts every crash whose designation is SR-100, once, whatever followed it. Nothing else is matched: a crash coded only to a local street name is not here even if that street is this road. - Same number, another state, another road. SR-100 in Wisconsin is counted within Wisconsin only. Where the route continues into a neighbouring state it has its own page there, and a State Route number means nothing outside its state.
- Only roads with ten or more fatal crashes over 2020 to 2024 have a page. Fewer is too few to say anything, and the county page already lists the most-named roads in each county as the police wrote them.
- No rate, no rank. The Wisconsin page lists every numbered road in route order with its count and nothing else. Roads with more lanes, more miles or more traffic record more fatal crashes; the record cannot separate those from the road’s design.
Informational only, not professional advice. Last reviewed: October 2026. Data snapshot built 2026-10-30.
Other roads in Wisconsin
- I-39 38
- I-41 50
- I-43 43
- I-90 17
- I-94 63
- SR-11 28
- SR-13 29
- SR-16 18
- SR-21 17
- SR-23 17
- SR-26 12
- SR-27 10
- SR-29 25
- SR-31 14
- SR-32 45
- SR-33 26
- SR-35 50
- SR-38 11
- SR-42 12
- SR-54 15
- SR-57 28
- SR-59 18
- SR-60 10
- SR-67 14
- SR-70 14
- SR-73 19
- SR-81 12
- SR-145 29
- SR-175 19
- SR-181 12
In route order, first thirty; the full list is on the Wisconsin page.