| Table 7.4. Five Sample Cost Estimates for Accumulated Sediment
Removal from BMPs (Based on cost estimates established in November 1991, NVPDC 1991) |
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| Site Worksheet | ||||||||||||
| Surface Area = .25 acre |
Surface Area = .5 acre |
Surface Area = 1 acre |
Surface Area = 2 acres |
Surface Area = 10 acres |
Surface Area = ____ acres |
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| Component Example | Low |
High |
Low |
High |
Low |
High |
Low |
High |
Low |
High |
Low |
High |
| Mobilization Demobilization | $5,000 | $7,000 | $5,000 | $7,000 | $5,000 | $7,000 | $5,000 | $7,000 | $5,000 | $30,000 | 1 | |
| Dredging* | $1,210 ($6/cy) |
$3,025 ($15/cy) |
$2,420 ($6/cy) |
$6,050 ($15/cy) |
$4,840 ($6/cy) |
$12,100 ($15/cy) |
$9,680 ($6/cy) |
$24,200 ($15/cy) |
$48,400 ($6/cy) |
$121,000 ($15/cy) |
2 | |
| Disposal | Onsite | Offsite | Onsite | Offsite | Onsite | Offsite | Onsite | Offsite | Onsite | Offsite | Onsite | Offsite |
| (Onsite/Offsite) | $605 ($3/cy) |
$5,848 ($29/cy) |
$1,210 ($3/cy) |
$11,697 ($29/cy) |
$2,420 ($3/cy) |
$23,393 ($29/cy) |
$4,480 ($3/cy) |
$46,787 ($29/cy) |
$24,200 ($3/cy) |
$233,933 ($29/cy) |
3 | |
| Total Nonroutine Costs |
$6,815 | $15,873 | $8,630 | $24,747 | $12,260 | $42,493 | $19,520 | $77,987 | $77,600 | $384,933 | 4 | |
| *Dredging calculations assume a sediment accumulation of 6 inches. Costs will vary depending on sediment depth. | ||||||||||||