The Indiana Department of Transportation is asking businesses and residents not to push snow from winter storms in driveways and parking lots onto state highways.

Concern for driver safety in the aftermath of a snowstorm led to the request, according to a news release.

Snow piled at the edge of the road may lead to motorists, including snowplow drivers, to have to swerve and veer across lane lines.

According to Indiana case law, property owners must exercise “reasonable care” not to interfere with safe travel on public roadways. The law prohibits putting a structure or obstruction in a highway, and piling snow where it impairs traffic safety could be considered an “obstruction,” a Class C infraction.