Recent vehicle-related water rescues in Eastern Idaho have prompted safety advocates and local law enforcement to issue urgent guidance on what to do — and what to avoid — when a vehicle enters water. With runoff season bringing high water flows and cold temperatures to rivers and streams across Bonneville County and the surrounding region, officials say the danger is real and the window to escape is far shorter than most people realize.
Roughly 400 people die each year across the United States in vehicle submersion incidents, according to figures shared by safety advocates. The statistic underscores just how quickly a routine drive near waterways can turn deadly.
Six Inches Can Be Enough
One of the most common misconceptions drivers hold is that they have plenty of time to react when a vehicle enters moving water. Experts with Kids and Car Safety, a national safety organization, are pushing back hard on that assumption.
Jenna Needham of Kids and Car Safety put the threat bluntly: “Your car can easily be swept away in just six inches of water, so people overestimate the amount of time that they have to escape.”
That figure — just six inches — surprises many people who assume deeper water is required to move a vehicle. Safety advocates stress that shallow, fast-moving water carries enough force to sweep a car off a road or bridge, leaving occupants with only seconds to respond before the situation becomes life-threatening.
Needham and other experts recommend that drivers never attempt to navigate through moving or flooded water, regardless of how shallow it may appear. The safest course of action when approaching a flooded roadway is to turn around and find an alternate route.
The SWOC Method for Escape
When a vehicle does end up submerged or rapidly filling with water, Kids and Car Safety recommends following the “SWOC” acronym as a step-by-step guide to escaping:
The letters stand for Seatbelt, Window, Out, and Children — meaning occupants should first unbuckle their seatbelt, then open or break a window to exit, get themselves out, and assist children only after they themselves are free. Experts emphasize that exiting through a window as quickly as possible is far safer than waiting for the vehicle to fill with water in hopes of equalizing pressure to open a door.
Advocates also recommend keeping a window-breaking tool within easy reach inside the vehicle — something drivers can access even when partially submerged. Every second matters in a submersion event, and fumbling for tools in an unfamiliar location can cost lives.
Preparation and Situational Awareness
Beyond in-the-moment survival steps, safety experts encourage families to take a proactive approach to water safety during the spring and summer months. Teaching children to swim is cited as one of the most important long-term protective measures parents can take. Wearing life jackets near rivers, lakes, and other open water is also strongly recommended, particularly during Idaho’s runoff season when water levels are elevated and currents are stronger than usual.
The Bonneville County Sheriff’s Office echoed these warnings, urging residents to stay alert and exercise caution around any body of water, especially when traveling roads that run adjacent to rivers or cross low-water bridges. Officials also asked members of the public to give emergency personnel adequate space when water rescue operations are underway, so that first responders can work safely and efficiently.
Eastern Idaho’s geography, with its proximity to the Snake River and numerous irrigation canals and tributaries, makes water safety a year-round consideration — but the risk rises sharply during the spring runoff period when snowmelt swells waterways across the region.
Residents traveling near water this season are encouraged to slow down, avoid flooded roadways entirely, and refresh their knowledge of vehicle submersion escape techniques. For more public safety coverage across the region, visit our report on a Fort Hall crash linked to possible alcohol use or stay current on local law enforcement news at Idaho News.
What Comes Next
As runoff season continues into late June and beyond, the Bonneville County Sheriff’s Office and partner agencies are expected to maintain heightened awareness around water-related emergencies. Residents are encouraged to monitor local water levels, heed road closure signs near flooded areas, and review vehicle escape procedures with all members of their household — particularly young children who may ride in the back seat and need assistance during an emergency.