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Compiled Expert Comments: Coastal Elevations and Sensitivity to Sea Level Rise February 12, 2008

# Chapter Page Line Comment Response

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# Chapter Page Line Comment Response

727 G 31 21-23

"Because Census data for population is based on summer year around residents, the estimates for many of the

ocean coastal counties--especially Dare--would be greater if summer seasonal res idents were included. ” Corrected

728 G 33 2 : ….that might have some low land such as a stream valleyalong historic/ancient drainage patterns." Addressed in appendix.

729 H 10 12

Yes, diminished sand supply and storm erosion has threatened residential development and coastal habitat, but

on Fire Island (and elsewhere on the south shore of LI) one cannot ignore the impacts of humans in

accelerating erosion.

We have added text in the introduction of Section H.2 refering to the human impact on the Fire Island

shore.

730 H 11 16

predicitng how storm breaches might evolve on Fire Island is complicated by human actions. Currently the fedsand state have a plan to close all breaches. However this plan is evolving as part of the ongoing Corps study of

the region. Noted.

731 H 15 5

Suggest "…reflecting the formerly high rates …" The jetty does little to trap sand now, but historical photos

would have indicated a high trapping rate.

This appendix was significantly revised and shortened. The discussion of the jetty's effect on sand

trapping was removed.

732 H 15 20, 21, 22

Agreed that research is suggesting onshore transport of sand at site 2, but since longshore transport is

westward, I'm not sure why that contribution of sediment isn't also adding sand to site 1?

This appendix was significantly revised and shortened. The discussion of onshore sediment transport

was removed.

733 Glossary 2

Glossary- 2: Beachfill: Include term beach nourishment in definition. Note in sections appears to be used

interchangable. Also see comment II-7: Line 13 & 19. Glossary updated.

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