. Beach and inlet changes at Ludlam Beach, New Jersey. Beach erosion; Coast changes; Littoral drift. north of Sea Isle City has been eroding at a rate of 3 to 5 feet per year, and at a lower rate south of Sea Isle City. In the past 130 years the length of Ludlam Beach has extended 2,300 feet northward at Corson Inlet and 1,000 feet southward at Townsend Inlet. The concavity of the island embayment has in- creased because the north and south protrusions at the inlets have remained relatively stable while the central part of the island, especially the northern half, has retreated perhaps 700 fee
. Beach and inlet changes at Ludlam Beach, New Jersey. Beach erosion; Coast changes; Littoral drift. north of Sea Isle City has been eroding at a rate of 3 to 5 feet per year, and at a lower rate south of Sea Isle City. In the past 130 years the length of Ludlam Beach has extended 2,300 feet northward at Corson Inlet and 1,000 feet southward at Townsend Inlet. The concavity of the island embayment has in- creased because the north and south protrusions at the inlets have remained relatively stable while the central part of the island, especially the northern half, has retreated perhaps 700 feet in places. The N. 30° E. orientation of the island has not varied noticeably since 1842. b. 1949-74 Changes. Shoreline positions over this 25-year period were measured from aerial photos and converted to rates of shoreline change (Fig. 28). The plotted rates are based on the changes in waterline and wetted boundary shorelines. In most cases, the changes from the wetted boundary shorelines were slightly less than the waterline position changes, but the trends were the same. Maximum erosion occurred in the north protrusion (near Corson Inlet) with intermediate erosion in the north and south indentations. Both the central protrusion (near the Sea Isle City groins) and the south protrusion (near Townsend Inlet) were nearly stable (see Fig. 4 for groin history).. Erosion Townsend r—v i < 1- Inlef \ ^ -30 -20 -10 Accretion 0 10 20 30 Mean Shoreline Position Change (ft/yr) Figure 28. Shoreline change for Ludlam Beach, 1949-74 (obtained from 20 sequential sets of aerial photos). 40. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Everts, Craig H; DeWall, Allan E; Czerniak, Martin T. Fort Belvoir, Va. : U. S. Army Coastal Engineering Research Center ; Springfield, Va. : available from National Technical Infor
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