BANGOR DAILY NEWS • July 19, 2021
On most U.S. shorelines, the public has a time-honored right to “lateral” access. This means that people can move down the beach along the wet sand between high and low tide – a zone that usually is publicly owned. Most states place the boundary between public and private property at the mean high tide line, an average tide over an astronomical epoch of 19 years. This means that at some point in the daily tidal cycle there is usually a public beach to walk along, albeit a wet and sometimes narrow one. In states such as Maine that set the boundary at mean low tide, you have to be willing to wade. The collision between rising seas and coastal development – known as “coastal squeeze” – now represents an existential threat to beaches, and to the public’s ability to reach them.