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<br />Table 2
<br />Pipestone, Minnesota
<br />
<br />Conceptual Improvements
<br />Preliminary Cost estimates
<br />
<br /> 1DO-vr Channellmprovemenls with 1lJO.vr l8v_
<br /> Item Unit UnIt coat Quantity Cost
<br />1. Excavation and Placement as Fill (Main Dijch) CY $4 12,000 $48,000
<br />2. Excavation and Placement as Fill (Diversion Chan.) CY $4 135,000 $540,000
<br />3. Excavation and Spoil 0n-S1Ie CY $4 122,000 $488,000
<br />4. Excavate New Channel and Fill Old Channel CY $3 19,000 $57,000
<br />5. 30" RCP Culverts LF $50 150 $7,500
<br />6. 33" RCP Culverts LF $60 300 $18,000
<br />7.54" RCP Culverts LF $140 150 $21,000
<br />8. 30" Flap Gales EA $3,000 3 $9,000
<br />9. 33" Flap Gates EA $3,500 6 $21,000
<br />10. 54" Flap Gales EA $8,000 3 $24,000
<br />11. Obi 18' by 8' Cast~n-Place Concrete Box Culvert CY $400 233 $93,200
<br />12. Headwalls and Wingwalls for RCB Culvert CY $400 27 $10800
<br /> Subtotal $1,337,500
<br /> 25% Contingency $334,375
<br /> Total CCl8t $1,671,875
<br />
<br /> 100-vr Channel Improvements with 500-vr l8v_
<br /> Item Unit Unit Cost Quantity CCl8t
<br />1. Excavation and placement as Fill (Main Dijch) CY $4 134,000 $536,000
<br />2. Excavati.on and placement as Fill (Diversion Chan.) CY $4 135,000 $540,000
<br />3. Fumish and Place Fill Material CY $8 41,000 $328,000
<br />4. Excavate New Channel and Fill Old Channel CY $3 19,000 $57,000
<br />4. 30" RCP Culverts LF $50 150 $7,500
<br />5. 33" RCP Culverts LF $60 300 $18,000
<br />6. 54" RCP Culverts LF $140 150 $21,000
<br />7.30" Flap Gales EA $3,000 3 $9,000
<br />8. 33" Flap Gates EA $3,500 6 $21,000
<br />9, 54" Flap Gates EA $8,000 3 $24,000
<br />10. Dbl1S' by 8' Cast-in-Place Concrete Box Culvert CY $400 233 $93,200
<br />11. Headwalls and Wingwalls for RCB Culvert CY $400 27 $10800
<br /> Subtotal $1,665,500
<br /> 25% Contingency $416,375
<br /> Total Cost $2,081,875
<br />
<br />Note: These cost estimates do not indude the costs for bridge impfO'lel11ents that would be required
<br />in order to achieve the specified levels of protection. Construction of the levees upstream of 9th Street NE
<br />without the bridge improvements is not recommended.
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