State Highway 15 in Connecticut: fatal crashes
From 2015 to 2024, 71 fatal crashes on State Highway 15 in Connecticut killed 78 people, the 7th most of any numbered road in Connecticut. In 2024 there were 5 fatal crashes and 9 deaths on the road.
An state highway running through 3 counties of Connecticut. All fatal crashes in Connecticut.
Deaths on State Highway 15 in Connecticut by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 5 | 9 |
| 2023 | 7 | 7 |
| 2022 | 8 | 9 |
| 2021 | 9 | 10 |
| 2020 | 9 | 9 |
| 2019 | 4 | 4 |
| 2018 | 8 | 8 |
| 2017 | 11 | 12 |
| 2016 | 5 | 5 |
| 2015 | 5 | 5 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on State Highway 15 in Connecticut: the counties with the most fatal crashes
New Haven County County had the most fatal crashes on State Highway 15 from 2015 to 2024: 32, with 35 deaths. New Haven, Hartford and Fairfield counties together held 100% of fatal crashes in State Highway 15 in Connecticut from 2015 to 2024. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | New Haven County | 2 | 32 | 35 |
| 2 | Hartford County | 2 | 22 | 23 |
| 3 | Fairfield County | 1 | 17 | 20 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen on State Highway 15 in Connecticut
Too few crashes to name a heaviest slot. The grid shows the shares; a share is only given over 20 crashes.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 7.1 percent, 5 fatal crashes | 2.9 percent, 2 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 2.9 percent, 2 fatal crashes |
| Mon | 2.9 percent, 2 fatal crashes | 4.3 percent, 3 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes |
| Tue | 4.3 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes | 4.3 percent, 3 fatal crashes | 4.3 percent, 3 fatal crashes |
| Wed | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 2.9 percent, 2 fatal crashes | 5.7 percent, 4 fatal crashes |
| Thu | 4.3 percent, 3 fatal crashes | 2.9 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes | 2.9 percent, 2 fatal crashes | 1.4 percent, 1 fatal crashes |
| Fri | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 4.3 percent, 3 fatal crashes | 8.6 percent, 6 fatal crashes |
| Sat | 2.9 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 4.3 percent, 3 fatal crashes | 4.3 percent, 3 fatal crashes |
By hour
By month
- Jan5.6%
- Feb5.6%
- Mar8.5%
- Apr7.0%
- May9.9%
- Jun5.6%
- Jul11.3%
- Aug8.5%
- Sep7.0%
- Oct7.0%
- Nov18.3%
- Dec5.6%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes on State Highway 15 in Connecticut first hit
The first harmful event was a collision with another vehicle in 35%; a fixed object such as a tree, pole or barrier in 35%, a pedestrian in 18%, a rollover in 4.2%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 25 | 35% |
| Fixed object (tree, pole, barrier, ditch) | 25 | 35% |
| Pedestrian | 13 | 18% |
| Rollover | 3 | 4.2% |
| Other | 3 | 4.2% |
| Cyclist | 1 | 1.4% |
| Parked vehicle | 1 | 1.4% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes on State Highway 15 in Connecticut compare with the state
A drinking driver was recorded in 39% of fatal crashes in State Highway 15 in Connecticut from 2015 to 2024, above the Connecticut share of 34%; speeding in 30%, below the Connecticut share of 33%; a hit-and-run in 5.6%, below the Connecticut share of 8.5%; 40% of passenger-vehicle occupants killed with belt use known were unbelted, below the Connecticut share of 50%. Shares of fatal crashes from 2015 to 2024, against the share across all of Connecticut. A share is only given over 20 crashes.
| State Highway 15 | Connecticut | ||
|---|---|---|---|
| On rural stretches | 1.4% | 14% | below the Connecticut share |
| At or near an intersection | 16% | 23% | below the Connecticut share |
| In the dark, road unlit | 35% | 17% | above the Connecticut share |
| A drinking driver | 39% | 34% | above the Connecticut share |
| Speeding | 30% | 33% | below the Connecticut share |
| Occupants killed unbelted | 40% | 50% | below the Connecticut share |
| Hit-and-run | 5.6% | 8.5% | below the Connecticut share |
| A motorcycle involved | 8.5% | 21% | below the Connecticut share |
| Pedestrians among the dead | 23% | 19% | above the Connecticut share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes in State Highway 15 in Connecticut
- How many fatal crashes have there been on State Highway 15 in Connecticut?
- 71 fatal crashes killed 78 people on State Highway 15 in Connecticut from 2015 to 2024. In 2024 there were 5 fatal crashes and 9 deaths.
- Where on State Highway 15 in Connecticut do the most fatal crashes happen?
- New Haven County had the most fatal crashes on State Highway 15 from 2015 to 2024: 32, with 35 deaths. Hartford County was second with 22.
Other roads in Connecticut with a page
All fatal crashes in Connecticut, with every road ranked.
Where the State Highway 15 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as State Highway 15 in Connecticut (filed under 3 spellings, such as "SR-15", "SR-15 BERLIN TPKE", "SR-15 BERLIN TPKE"). Ramps, frontage and service roads are left out. A fatal crash is one in which someone died within 30 days. The full method.