2.0 Alternatives Considered
and associated sand quantities associated with variations 2a and 2b are shown in Table 2-6. The overall
quantity of sand would be 1.25 million cy under Alternative 2b versus 2.04 million cy under Alternative 2a.
Table 2-6
Alternative 2 Schedule and Production
Alternative 2a
Alternative 2b
(Assumes 7-day/24-hour work schedule)
(Adheres to Noise Ordinances)(3)
Replenishment
Duration of
Replenishmen
Duration of
Site
Pipeline
t Site
Pipeline
Applicable
Construction(1)
Activity(2)
Construction(1)
Activity(2)
Noise
Borrow
Receiver
Quantity
(estimated
(estimated
Quantity
(estimated
(estimated
Ordinanc
Site
Site
(cy)
days)
days)
(cy)
days)
days)
e?
S. Oceanside
570,000
42
285,000
63
Yes
SO-9
42
63
N. Carlsbad
0
0
0
0
N/A
S. Carlsbad N.
218,000
19
218,000
19
No
32
32
S. Carlsbad S.
142,000
13
142,000
13
No
SO-7
Batiquitos
0
0
0
0
N/A
Leucadia
0
0
0
0
0
0
N/A
Moonlight
0
0
0
0
N/A
SO-6
Cardiff
104,000
11
11
104,000
11
11
No
Solana Beach
140,000
13
13
70,000
18
18
Yes
SO-5
Del Mar
180,000
16
90,000
24
Yes
44
64
Yes(4)
Torrey Pines
360,000
28
180,000
40
MB-1
Mission Beach
150,000
14
14
75,000
21
21
Yes
Imperial
SS-1
180,000
16
16
90,000
24
24
Yes
Beach
1,254,000.0
Total
2,044,000
172
172
233
233
0
Average Production Rate
15,000 cy/day
5,000 cy/day
Assumptions: Noise limits would allow only one shift of production per day (instead of three) with no construction on Sundays or
holidays. Production would take three times longer. Production rates are average and similar for either type of dredge equipment.
Includes 2 to 4 days for mobilization prior to sand placement and 2 to 4 days for demobilization post placement, depending on
(1)
borrow source.
Maximum number of working days pipeline would be on the beach where a single borrow site serves more than one receiver site.
(2)
Assumes a working schedule from 7:00 a.m. to 7:00 p.m. Monday through Friday, limited working hours on Saturday, and no
(3)
working hours on Sundays and holidays.
The Torrey Pines conveyance plan includes use of Del Mar's beach for pipeline conveyance of sand. The use of the City of Del
(4)
Mar's beach for this purpose may necessitate conformance with the noise ordinance.
Page 2-52
Regional Beach Sand Project EIR/EA
99-69\SANDAG EIREA 3.4.wpd 7/17/00
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