Master Plan Development - City of Boca Raton

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City of Boca Raton Stormwater Management Master PlanPart I – Task 3 ReportNE 5th Avenue Stormwater Management ImprovementsEngineer’s Opinion of Conceptual CostsCity of Boca Raton Stormwater Management Master PlanITEM DESCRIPTION QTY UNIT UNIT PRICE TOTAL1. Mobilization 1 LS $10,000 $10,0002. Maintenance of Traffic 1 LS $5,000 $5,0003. Preconstruction Video 1 LS $200 $2004. Survey & Layout 1 LS $800 $8005. Record Drawings 1 LS $200 $2006. Clearing & Grubbing 1 LS $5,000 $5,0007. Remove Exist. Sidewalk 2000 SF $2 $4,0008. Inlet, Type C 5 EA $4,000 $20,0009. Exfiltration Trench, 18" RCP 400 LF $120 $48,00010. Reinforced Concrete Pipe, 18" 100 LF $60 $6,00011. Concrete Sidewalk 225 SY $40 $9,00012. Concrete Driveway 25 SY $50 $1,25013. Pavement Restoration (Pipe Crossings) 50 SY $35 $1,75014. Sodding (Floritam) 475 SY $6 $2,85015. Remove & Replace Traffic Sign 1 EA $250 $25016. Replace Pavement Markings 1 LS $200 $20017. Irrigation Restoration 1 LS $2,138 $2,138Subtotal $116,638Contingency (15%) $17,496Construction Total $134,133Engineering, Legal, & Misc. Costs (20%) $26,827Rounded Project Total $170,000Note: The above costs are based on a conceptual layout of the stormwater system for this area.As such, they are subject to change depending on the final scope of the project that is designedand constructed as well as other factors. Estimate is in 2008 dollars.L:\boca\bocaswmp\A6016.03\rp02accm.docPage 46MOCK•ROOS
City of Boca Raton Stormwater Management Master PlanPart I – Task 3 ReportPalm Beach Farms Stormwater Management ImprovementsReported Problem(s): Reports of street flooding in several locations have been received from residents,and City staff has confirmed recurring flooding at the intersections of Juana Road/SW 21 st Street andMontezuma Road/SW 21 st Street.System Description: There is no formal stormwater management system in this area. However,moderately well maintained and expansive swale areas along both sides of most streets appear to managethe stormwater runoff from most rainfall events. There appear to be three intersections where theroadway is low and ponding occurs before water enters the swale areas; Montezuma/SW 21 st Street,Juana/SW 19 th Street, and Juana/SW 21 st Street.Conceptual Solution(s): The recommended conceptual improvements to address the intersection floodingoccurrences are to overlay the intersections at Montezuma/SW 21 st Street and Juana/SW 19 th Street so thatpositive flow occurs into the adjacent swales. City staff felt that a positive outfall for this neighborhoodcould provide an increased level of service for the streets. Therefore, this conceptual solution includes therecommendation of an inlet and exfiltration trench system along the south side of SW 21 st Street. Thissystem will be connected via additional exfiltration trench along Juana Road, to a new outfall to theHillsborough Canal. During preliminary design, the estimated costs and calculated benefits can be usedin determining whether or not to include the positive outfall connection.Water Quality Impacts: The proposed conceptual solution includes the use of exfiltration trench toprovide added water quality to the system.L:\boca\bocaswmp\A6016.03\rp02accm.docPage 47MOCK•ROOS
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APPENDIX ASCOPE OF SERVICES
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Impervious AreaWater Quality Volume
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Task 1 Deliverables - The CONSULTAN
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Task 2 Deliverable - The CONSULTANT
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P.A. No.: A6016.01g:\boca\bocaswmp\
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Table 1SFWMD Permit Data(Selected E
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ComplaintIDSite Address Subdivis Da
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Table 3Major Outfall InformationMaj
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Table 4Potential High Risk Facility
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City of Boca RatonStormwater Manage
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City of Boca Raton Regulatory Infor
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Master Plan Development - City of Boca Raton

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