large submerged or partially submerged glacial erratics (boulders) that are a hazard to
navigation.
Figure 2-11. Bluffs east of Mattituck Inlet, 21 November 2003
Beach width west of Mattituck Inlet (Breakwater Beach) ranges between 50-100 ft
and can be attributed to impoundment by the west jetty. The beach west of the jetties is
composed mainly of sand. The beach east of the jetty, Bailie's Beach, is narrower and is
composed of a mixture of sand and gravel. In the past, there was concern that a breach
could occur adjacent to the east jetty. A breach at this location would expose the Oregon
Hills Tidal Wetlands (located just south of the dunes that back Bailie's Beach) to waves
and would reduce effectiveness of the Federal channel. A study by New York District