WisDOT Expands Shrub Plantings for Living Snow Fences on Highways

The Wisconsin Department of Transportation is planting additional rows of shrubs along state highways as part of its living snow fence program, an approach WLUK reports is intended to stop drifting snow before it reaches the pavement and to reduce winter plowing costs, according to the report.

How does a living snow fence work?

A living snow fence is a row of vegetation, in this case shrubs, planted upwind of a roadway. The barrier slows wind and forces blowing snow to drop before it crosses a travel lane, rather than letting it pile into drifts on the pavement or shoulder. That is the mechanism WLUK's reporting describes for WisDOT's plantings.

What did WisDOT report, and what did it not report?

The underlying WLUK story credits the shrub plantings with two outcomes: less drifting onto roadways and lower plowing costs for the department. Those are the two concrete claims in the reporting reviewed for this piece. What is not included in that account is any dollar figure for plowing savings, a count of shrubs or acres planted, or a list of specific highway segments or counties receiving the new plantings. Readers looking for a cost-per-mile comparison or a savings percentage will not find one in the source material; none was disclosed.

Why would shrubs cost less than steel or wood fencing?

State transportation agencies have historically used removable wood-slat or wire snow fences that crews install each fall and pull each spring, a recurring labor cost. A planted living fence, once established, does not require seasonal installation or removal. WLUK's report attributes WisDOT's expanded shrub plantings to that same logic — a planted barrier that stays in place year-round versus equipment that has to be moved twice a year — but does not quantify the labor or material cost difference between the two methods.

Is this part of a broader shift toward low-maintenance infrastructure?

The shrub-fence expansion fits a pattern search interest shows across other sustainability-minded household and community decisions, from residents building off-grid structures to cut utility costs to neighbors pooling resources through tool-sharing programs instead of buying single-use equipment. Both reflect the same basic trade: higher upfront planning for lower recurring cost. A Wisconsin couple's off-grid dome build is one household-level example of that trade-off; WisDOT's shrub rows are the public-infrastructure version.

What should drivers and taxpayers watch for next?

The open questions are whether WisDOT publishes a cost comparison between vegetative and structural snow fencing, which highway corridors get priority for new plantings, and how long shrubs take to mature enough to function as an effective windbreak. None of those figures appear in the reporting available at publication.