Frozen ground, with an equal snowbank on the other side (it is a one way street, so you only care about one of the banks). If you had installed it in prior yea

Frozen ground, with an equal snowbank on the other side (it is a one way street, so you only care about one of the banks). If you had installed it in prior years, it'd probably be buried (the real life snow bank this is based on was approximately 6-7 feet tall).