What is a right of way encroachment?
The Mercer Island Unified Land Development Code Section 19.06.060 defines encroachments and criteria used to determine when an encroachment is allowed. In most cases, encroachments are not allowed. Some examples of encroachments in right of way include rockeries, walls, fences, various structures, signs, large trees, landscape lighting, and irrigation systems. The City Engineer reviews encroachment requests and determines whether they are acceptable or not. When determined an acceptable encroachment, the requestor must pay fees associated with executing an encroachment agreement and obtaining a Right of Way Use Permit.
