Monmouth Beach, New Jersey: Beach-Fill 'Hot Spot' Erosion Evaluation. Report 2. Functional Design of Shore-Protection Alternatives for Beach-Fill Longevity

摘要

The U.S. Army Engineer District, New York, is constructing Section I- Sea Bright to Ocean Township, New Jersey, of the Atlantic Coast of New Jersey - Sandy Hook to Barnegat Inlet Beach Erosion Control Project. Within the initial portion of this project, a zone of accelerated shoreline erosion has developed near the southern boundary of Monmouth Beach, New Jersey. This report investigates shore-protection measures for the eroding beach with the goal of maintaining a 23-m-wide protective berm over the 6-year renourishment interval. The report evaluates performance of a nearby groin field to establish groin design criteria, proposes and investigates the merits of five design alternatives employing a frequency-of-violation criterion and the shoreline change model GENESIS, and recommends a functional design to reduce the high rate of beach erosion.