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<br />Bulkhead Construction Costs <br />Page 2 <br />An estimate of these savings is given below: <br />Terry Tunnel Bulkhead <br />Ventilation <br />Limestone Placement <br />i/2 Bulkhead Bracing <br />Forming and water Diversion <br />1 month of Equipment Usage <br />Hoistman <br />Estimated Savings <br />American Tunnel Bulkhead <br />Ventilation <br />Limestone Placement <br />Coffer Dam Construction <br />1/2 Bulkhead Bracing and Forms <br />1 month of Equipment Usage and <br />Electricity <br />Estimated Savings <br /> <br />$16,550 <br />$12,831 <br />$ 2,900 <br />$10,000 <br />$15,315 <br />S1Q, 800 <br />$68,396 <br />$57,983 <br />$ 6,089 <br />$15,000 <br />$12,000 <br />$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. IP 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 o! the Division and will proceed with valve <br />closure. <br />Sincerely, <br />~~ ~~ . <br />Larry Perino <br />Reclamation Manager <br />