States › Louisiana › Routes › State Route 42
State Route 42
Fatal crashes 2015–2024 34Deaths 34Counties 3Latest data year 2024
FARS data are based on police crash reports and other sources; the drunk-driving measure is based on the highest BAC of any driver in the crash. Latest data year: 2024. The route is the trafficway recorded for each crash (FARS TWAY_ID); the same route number in another state has its own page.
Between 2015 and 2024, FARS records 34 fatal crashes on State Route 42 in Louisiana, with 34 deaths.
That is 0.5% of the 7,467 fatal crashes in Louisiana over the same years. The ten-year crash count fell 11% from 38 in 2005–2014 to 34 in 2015–2024.
The crashes were concentrated in Livingston Parish (15), East Baton Rouge Parish (12) and Ascension Parish (7).
35.3% of the crashes had a driver reported as drinking (Louisiana: 30.9%) and 26.5% had a speeding-related driver (22.4%); pedestrians were 14.7% and motorcyclists 11.8% of those killed.
Fatal crashes per year
Route identification in FARS is consistent from 2000; earlier years are not shown. Shaded band: the ten-year window used for the shares below.
Compared with all fatal crashes in Louisiana
| Measure | State Route 42 | Louisiana |
|---|---|---|
| Fatal crashes, 2015–2024 | 34 | 7,467 |
| Deaths, 2015–2024 | 34 | 8,045 |
| Deaths per fatal crash | 1.0 | 1.1 |
| Share of state fatal crashes | 0.5% | 100% |
| Change vs previous ten years | -11% | 0% |
Factor shares
Counties along the route
| # | County | Fatal crashes on SR-42 | Share of route | County total, all roads |
|---|---|---|---|---|
| 1 | Livingston Parish | 15 | 44% | 256 |
| 2 | East Baton Rouge Parish | 12 | 35% | 677 |
| 3 | Ascension Parish | 7 | 21% | 221 |
Hour of day
Share of fatal crashes on State Route 42 beginning in each hour, 2015–2024; tick marks the Louisiana share for all roads.
Where along the route
| Mile marker range | Fatal crashes | Share |
|---|---|---|
| Mile 5–10 | 6 | 18% |
| Mile 0–5 | 5 | 15% |
| Mile 45–50 | 5 | 15% |
| Mile 15–20 | 4 | 12% |
| Mile 30–35 | 4 | 12% |
| Mile 35–40 | 4 | 12% |
Five-mile bins by FARS milepoint, the six with the most fatal crashes; 100% of crashes on the route have a milepoint. Milepoints are as recorded by the state and can restart at county or district lines.
Other routes in Louisiana
- Interstate 10 472
- US Route 90 298
- US Route 61 240
- US Route 190 187
- State Route 1 173
- Interstate 20 169
- Interstate 12 147
- Interstate 49 118
- US Route 165 115
- US Route 167 107
- US Route 71 98
- US Route 171 88
All routes and counties in Louisiana
Questions and answers
How many fatal crashes have there been on State Route 42 in Louisiana?
34 fatal crashes with 34 deaths over 2015–2024, per NHTSA's FARS. The route is the trafficway recorded for the crash; the same numbered route in another state has its own page.
Which counties along State Route 42 had the most fatal crashes?
Livingston Parish (15), East Baton Rouge Parish (12) and Ascension Parish (7).
What share of crashes on State Route 42 involved alcohol or speeding?
35.3% had a driver reported as drinking and 26.5% a speeding-related driver, against 30.9% and 22.4% for all fatal crashes in Louisiana.
When do fatal crashes happen on State Route 42?
61.8% of the crashes were between 6pm and 6am. The hour chart on this page shows the full distribution.
Provenance
Source: NHTSA Fatality Analysis Reporting System, annual national CSV files 2000–2024 (accident, vehicle and person tables), public domain. Route pages are built for signed Interstate, US and state routes with at least 20 fatal crashes in 2015–2024. Data through 31 Dec 2024; generated 30 Sep 2026. See methodology and corrections.