2019.02.04 CC Packet - Laserfiche WebLink

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2.6.6. Intercommunity Flows The RCWD District -wide Modeling Program outlines the existing intercommunity flows in its district -wide modeling program summary. The City of Hugo is committed to maintaining these flow rates under full buildout and will regulate development to ensure compliance with the current intercommunity flow rates identified by the latest model. Table 2.2 below is an excerpt from the summary report showing these existing flows as provided by RCWD. The City will work with RCWD to maintain these flows through coordination on new and redeveloping areas. Table 2.2 Intercommunity Flows Peak Flows cfs 2-Year 10- 100- 100-Year Discharging Receiving Watercourse 24- Year Year 10-Day City City 24- 24- Snowmelt hour hour hour Rainfall Rainfall Rainfall Hugo Forest Lake AWJD 2 42 130 703 670 Main Trunk Hugo Grant Private 26 47 54 33 Open Channel Hugo Lino Lakes AWJD 2 113 207 642 868 Main Trunk Hugo Lino Lakes AWJD 3 134 222 329 321 Main Trunk Lino Lakes Hugo AWJD 3 34 67 163 64 Branch 4 Lino Lakes Hugo AWJD 3 15 17 53 8 Branch 1 While not part of the jurisdictional ditch system, the City of Hugo discharges stormwater via surface flows into Lino Lakes and contributes to the Anoka County Ditch 55 System. Table 2.3 shows proposed flows entering the City of Lino Lakes from Hugo as identified in the City of Lino Lakes' Northeast Lino Lakes Drainage Area Comprehensive Stormwater Management Plan. Table 2.3 Proposed Flows from Hugo to Lino Lakes at Everton Avenue URC Link Peak Flows cfs 2-Year 24- hour Rainfall 10-Year 24- hour Rainfall 100-Year 24-hour Rainfall 100-Year 10-Day Snowmelt CA55MTL 013 2.0 3.5 5.0 4.3 CA55MTL 012 0.3 1.2 3.3 1.6 CA55MTL 011 2.1 7.3 17.7 6.4 CA55MTL 014 3.6 8.3 13.9 12.5 CA55MTL 014B 0.0 0.1 3.9 2.8 Total 8.0 20.4 43.8 27.6 SECTION 2