At profile line 07, pipes 1 to 9 were read on both 24 November and 
19 December 1970. Maximum erosion at any one of these pipes was 4 feet, 
measured at pipe 8 where the sand level changed from 5.2 to 1.2 feet MSL. 
There was no accretion at any of the pipes at profile line 07. 
The prestorm pipe readings were taken more than 3 weeks before the 
storm, which limits their usefulness in judging the effects of the storm. 
8. Ludlam Island, New Jersey. 
Profile line locations are shown in Figure 21, surveyed beach profiles 
in Figure 22, and MSL contour and area changes in Table 9. Many of the 
profile lines on Ludlam Island have exposures of peat beds cropping out 
on the low tide terrace; scarps formed by the peat bed outcrops are prob- 
ably the cause of apparent discontinuities near MSL on profile lines 05 
and 07. Peat affords some protection to these profile lines by absorbing 
or reflecting some of the energy of the breaking waves. During storms 
such as this one, the peat is ripped up and the peat blocks are deposited 
higher up on the beach. As it is reworked, the peat disintegrates into 
particulate silt, clay, and organic material which, as suspended sediment, 
gives the surf a yellowish color. The disintegrated peat does not remain 
on the beach. 
There are approximately 20 shore-protective structures on Ludlam 
Island, between Corson Inlet and the town of Sea Isle City. Profile 
line 04 was surveyed immediately adjacent to a timber groin, and profile 
lines 03, 11, 12, 13, 14, and 15 are located within 400 feet of a groin. 
All profile lines except lines 10, 11, 17, and 20 showed net erosion. 
For some profiles, minor accretion was observed in the dune area and below 
the 1-foot contour. A poststorm field inspection of selected profile 
lines on Ludlam Island indicated that the accretion in the dune area is 
probably due to a buildup of eolian material along the sand fences. 
Photos show an accumulation of fresh sand on the seaward side of the sand 
fence at profile lines 10 and 16. 
Profile line 20, located about 400 feet north of Townsend Inlet, 
showed anomalous accretion along its entire length except for minor ero- 
sion at the 3-foot contour. 
The average net volume change above MSL on 19 Ludlam Island profile 
lines was -2.6 cubic yards per foot; the average MSL contour change was 
-1.6 feet. 
Pipe profiles were located along profile lines 05 and 18. At profile 
line 05, pipes 1 to 4 were read on both 13 and 19 December 1970. There 
was no erosion at any of the pipes. Maximum accretion at any of the pipes 
was 1.0 foot, measured at pipe 4 where the sand level changed from 0.8 
to 1.8 feet MSL. 
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