4.5 Cultural Resources
4.5.3 Alternative 2
Impacts of Alternative 2a
Under Alternative 2a, the dredge volume would increase at SO-5, MB-1 and SS-1 when compared to
Alternative 1. The increased volume at MB-1 and SS-1 would result dredging at greater depths, an
incremental increase of three feet and one foot, respectively. This would incrementally increase the
potential for entering sediments with cultural resources. The increased depth would not change the
conclusions in Table 4.5-1. The increased volume could be achieved at SO-5 without a change in acreage
or depth of the dredge area. As with Alternative 1, a monitoring program would be implemented to verify
that no significant impacts would occur.
Mitigation Measures for Alternative 2a
As described in Section 2.5, a monitoring program would be implemented to verify no dredging impacts
to underwater cultural resources. If encountered, the site would be recorded and avoided. No further
measures would be necessary.
Impacts/Mitigation Measures for Alternative 2b
This alternative's impacts would be similar to Alternative 2a, and no significant impacts would occur. No
mitigation measures would be necessary.
4.5.4 No Action Alternative
Under the No Action Alternative, no dredging or beach replenishment activities would occur, and erosion
at the region's beaches would continue without intervention. No impacts to cultural resources would occur,
and no monitoring would be instituted.
Page 4.5-4
Regional Beach Sand Project EIR/EA
99-69\SANDAG EIREA 4.1 to 4.13.wpd 7/17/00
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