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Bulkhead Construction Costs <br /> Page 2 <br /> An estimate of these savings is given below: <br /> Terry Tunnel Bulkhead <br /> Ventilation $16,550 <br /> Limestone Placement $12,831 <br /> 1/2 Bulkhead Bracing $ 2,900 <br /> Forming and Water Diversion $10,000 <br /> 1 month of Equipment Usage $15,315 <br /> Hoistman $10,800 <br /> Estimated Savings $68,396 <br /> American Tunnel Bulkhead <br /> Ventilation $57,983 <br /> Limestone Placement $ 6,089 <br /> Coffer Dam Construction $15,000 <br /> 1/2 Bulkhead Bracing and Forms $12,000 <br /> 1 month of Equipment Usage and <br /> Electricity $17,855 <br /> Estimated Savings $108,927 <br /> Therefore the costs incurred by SGC (approximately $562,000) are <br /> probably $177,000 over what would be incurred upon replacement. <br /> Another factor to be considered is that under any probable <br /> circumstance where the Division would have to perform a bulkhead <br /> replacement, a large portion of the equipment would be onsite for <br /> usage. Therefore, SGC believes that a bond amount of $500,000 <br /> would be adequate to replace the bulkheads (including G and A and <br /> Contractor profit) and proposes that amount. <br /> Please contact me to discuss this submittal if you have any <br /> questions. If the Division does not agree with the above proposal, <br /> SGC will be available to meet with you to set the amount. Upon <br /> agreement of the amount, SGC will submit a Letter of Credit to be <br /> issued in favor of the Division and will proceed with valve <br /> closure. <br /> Sincerely, <br /> Larry Perino <br /> Reclamation Manager <br />