Ask a Trooper: Grass clippings in the street are dangerous

Published 8:45 pm Tuesday, May 7, 2024

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Ask a Trooper by Troy Christianson

Question: I sent you an email asking about the legality of individuals discharging grass clippings from lawn mowers onto public roads. They can be very slippery when wet and otherwise are a mess.

Troy Christianson

Answer: Discharging grass clippings onto a highway is illegal, most cities also have ordinance on this as well. The statue is 169.42 Sub 1, Objects on a highway, which is a misdemeanor offense. Grass clippings blown into the roadway can create dangerous conditions for motorcyclist and bicyclists. Coming upon grass clippings without enough time to slow down, they can cause a loss of traction. Grass clippings are extremely slippery and if the clippings are wet,

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such after a light rain, the danger is even worse.
You can avoid a ticket — and a crash — if you simply buckle up, drive at safe speeds, pay attention and always drive sober. Help us drive Minnesota toward zero deaths.

If you have any questions concerning traffic-related laws or issues in Minnesota, send your questions to Sgt. Troy Christianson, Minnesota State Patrol, at 2900 48th St. NW, Rochester, MN 55901-5848; or reach him at

Troy Christianson is a sergeant with the Minnesota State Patrol.