The Snow is Not the Problem
The sand, road salt and de-icing chemicals thrown up into your property can cause serious problems for your plants even if you have specifically chosen salt tolerant plants for your boulevard. Eventually you will begin to see damage or deformity to the foliage, declined flowering and dehydration.
So if possible you should try to minimize what is allowed to build up in your soil. Once the snow starts to melt substantially, the high banks along the road from the snow plow will finally start to shrink. After much of the snow has melted, large amounts of sand and salt become very visible. Get out there and shovel it off!
Where you shovel it off to is important. A couple of years the street cleaners were scheduled to come early and I was able to shovel into the street right ahead of the street sweeper for the debris to be collected. Ordinarily all that sand, salt and chemicals will wash into the storm sewers with a heavy rain. This is of particular concern where I live near a city lake. The salt never really goes away, it just slowly makes its' way into our water sources. So, I try to collect into large containers to at least remove the sand and as much of the salt as is possible. The snow melts away if there are drainage holes or evaporates, and for the most part leaves the debris in the container. I can recycle mine into my sand bin for next year. Win Win
Then always make sure your soil gets a good flushing of water to disperse and dilute the salt and chemicals. Heavy spring rains might to the job for you.