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Home My WebLink AboutWPO200900062 Review Comments Bond Estimate 2010-03-24PROJECT NAME: Arden Place FILE M WPO200900062, SDP200900091, SUB200900070 DATE APPROVED: DATE SIGNED: DATE APPROVED: RETENTION POND #1 Type of Facility: Retention Pond (Type III) Item Unit Amount Unit Cost Subtotal clearing & grubbing (wooded) acre 1.3 $12,600.00 $16,380 dam const.on site material cubic yard 200 $4.00 $800 wetland seed mix acre 1 $1,500.00 $1,500 shrubs planted 58 $85.00 $4,930 trees planted 17 $350.00 $5,950 30" concrete riser structure each 1 $1,000.00 $1,000 concrete anti vortex each 1 $1,500.00 $1,500 concrete pipe linear foot 100 $27.72 $2,772 pond drain gate valve (6 ") each 1.00 $500.00 $500 EC -1 outlet protection each 2 $200.00 $400 class 1 rip -rap square yard 135 $55.00 $7,425 maintenance road linear foot 825 $8.00 $6,600 sign installed each 2 $50.00 $100 SUBTOTAL $49,857 RETENTION BASIN #2 Type of Facility: Bio- Filter Item Unit Amount Unit Cost Subtotal clearing & grubbing (wooded) acre 0.2 $12,600.00 $2,520 dam const.on site material cubic yard 60 $4.00 $240 wetland plants planted 250 $3.00 $750 shrubs planted 13 $85.00 $1,105 trees planted 2 $350.00 $700 6" PVC pipe linear foot 215 $2.50 $538 underdrain stone cubic yard 44 $17.00 $748 stone delivery load 5 $50.00 $250 filter fabric square yard 76 $10.00 $760 sand /soil mixture cubic yard 63 $20.00 $1,260 EC -1 outlet protection each 2 $200.00 $400 class 1 rip -rap square yard 60 $55.00 $3,300 maintenance road linear foot 120 $8.00 $960 sign installed each 1 $50.00 $50 SUBTOTAL $13,581 UNDERGROUND DETENTION SYSTEM Type of Facility: Raintanks & Filterras Item Unit Amount Unit Cost Subtotal Filterra 4x6 each 4 $6,400.00 $25,600 Filterra 4x8 each 1 $6,900.00 $6,900 Filterra Installation each 5 $1,625 $8,125.00 triple raintanks each 595 $25.00 $14,875 raintank inspection port each 3 $500.00 $1,500 underdrain stone cubic yard 85 $14.58 $1,239 stone delivery load 1 $50.00 $50 filter fabric square yard 200 $10.00 $2,000 15" concrete pipe linear foot 10 $27.72 $277 18" concrete pipe linear foot 70 $27.72 $1,940 manhole each 2 $1,638.00 $3,276 EC -1 outlet protection each 1 $200.00 $200 SUBTOTAL $65,983 REQUIRED CHANNEL IMPROVEMENTS Item Unit Amount Unit Cost Subtotal removal of 48" culvert linear foot 225 $10.00 $2,250 stream restoration linear foot 225 $50.00 $11,250 42" culvert headwall improvements lump sum 1 $2,000.00 $2,000 42" culvert outlet protection each 1 $200.00 $200 SUBTOTAL SUBTOTAL $15,700 POTENTIAL CHANNEL IMPROVEMENTS TO ADDRESS MS -19* Item Unit Amount Unit Cost Subtotal instream rock weir each 6 $5,000.00 $30,000 stream bank stabilization lump sum 1 $10,000.00 $10,000 42" culvert replacement linear foot 144 $55.56 $8,000 Permit for work in stream lump sum 1 $10,000.00 $10,000 SUBTOTAL SUBTOTAL $58,000 Cost Sum $203,120 15% Project Management $30,468 Subtotal $233,588 10% Contigency $23,359 TOTAL $257,000 * The requirement of these improvements will be evaluated in the field at a date TBD.