The Idaho Transportation Department released new data showing a significant decline in fatal collisions across the state during the summer months, as first reported by localnews8.com. The agency’s report covers the “100 Deadliest Days” period, which ran from May 25 through September 7, 2026.
Fatal crashes fell to 59 this year, down from 87 during the same timeframe in 2025. While the drop in fatalities is notable, total crash volume remained high, with 7,411 incidents recorded statewide. The data underscores that while fewer drivers lost their lives, roadways remained hazardous for thousands of motorists.
Primary Causes Identified
Sky Buffat, District 6 Public Information Officer for ITD, identified failure to yield as the leading contributing factor in collisions during the reporting window. There were 1,270 crashes linked to drivers failing to yield, accounting for roughly 17% of all incidents. Distracted driving was another major issue, with 1,243 crashes attributed to driver distraction, representing about 16.77% of the total.
“Some of the highest contributors to accidents over this particular summer have been failure to yield, failure to stay in your lane,” Buffat told the Local News 8.
Intersection-related crashes also accounted for a significant portion of the data, with 1,323 incidents occurring at intersections. June proved to be the most dangerous month, recording 2,388 crashes. July followed closely with 2,346 incidents, while August saw 2,069 collisions.
Injury and Damage Breakdown
The majority of crashes resulted in property damage only. Of the 7,411 total incidents, 4,881 involved no reported injuries. However, nearly one-fifth of crashes involved some level of physical harm or complaint. There were 1,100 crashes involving a possible injury or complaint, and 1,038 incidents where a minor or visible injury was suspected. Additionally, 333 crashes involved suspected serious injuries.
Shift to Winter Safety
As the summer driving season concludes, ITD officials are pivoting their public safety messaging toward winter preparedness. The agency is urging Idaho drivers to adjust their habits as weather conditions change. Officials specifically recommend against using cruise control when driving on ice or snow, a practice that can lead to loss of vehicle control.
Drivers are also advised to maintain a safe distance behind snowplows rather than attempting to pass them. Buffat emphasized the value of defensive driving education for all motorists, regardless of experience level.
“Whatever level of familiarity you have, though, those courses can be a great reminder of the different things that are good to know,” Buffat told the Local News 8.
The release of this data comes as Idaho continues to manage infrastructure projects and traffic flow across its highway system. Recent efforts include the reopening of the Pocatello Center Street Underpass and ongoing lane work on major corridors like I-15 near Fort Hall, which required overnight traffic shifts. In Idaho Falls, ITD has also erected barriers at specific intersections to curb dangerous driving behaviors.