States › Louisiana › Routes › US Route 51
US Route 51
Fatal crashes 2015–2024 25Deaths 28Counties 2Latest 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.
US Route 51 in Louisiana was the trafficway in 25 fatal crashes between 2015 and 2024, in which 28 people died.
That is 0.3% of the 7,467 fatal crashes in Louisiana over the same years. The ten-year crash count rose 25% from 20 in 2005–2014 to 25 in 2015–2024.
The crashes were concentrated in Tangipahoa Parish (21) and St. John the Baptist Parish (4).
40.0% of the crashes had a driver reported as drinking (Louisiana: 30.9%) and 24.0% had a speeding-related driver (22.4%); pedestrians were 35.7% and motorcyclists 14.3% 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 | US Route 51 | Louisiana |
|---|---|---|
| Fatal crashes, 2015–2024 | 25 | 7,467 |
| Deaths, 2015–2024 | 28 | 8,045 |
| Deaths per fatal crash | 1.1 | 1.1 |
| Share of state fatal crashes | 0.3% | 100% |
| Change vs previous ten years | +25% | 0% |
Factor shares
Counties along the route
| # | County | Fatal crashes on US-51 | Share of route | County total, all roads |
|---|---|---|---|---|
| 1 | Tangipahoa Parish | 21 | 84% | 300 |
| 2 | St. John the Baptist Parish | 4 | 16% | 95 |
Hour of day
Share of fatal crashes on US Route 51 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 0–5 | 6 | 24% |
| Mile 30–35 | 6 | 24% |
| Mile 35–40 | 4 | 16% |
| Mile 45–50 | 3 | 12% |
| Mile 5–10 | 2 | 8% |
| Mile 50–55 | 2 | 8% |
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 US Route 51 in Louisiana?
25 fatal crashes with 28 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 US Route 51 had the most fatal crashes?
Tangipahoa Parish (21) and St. John the Baptist Parish (4).
What share of crashes on US Route 51 involved alcohol or speeding?
40.0% had a driver reported as drinking and 24.0% a speeding-related driver, against 30.9% and 22.4% for all fatal crashes in Louisiana.
When do fatal crashes happen on US Route 51?
70.8% 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.