909 SIEVERS-DUECY BLVD BASE FILE 2016-01-01 MF Import

r I ' � � Sievers Duecy Retail Hydraulic Calculation Summary ( February 5, 2007 EXISTING BASIN � Existing Detention Event Summary: � BasinlD Peak Q Peak T Peak Vol Area Method Raintype Event ------- (cfs) (hrs) (ac-ft) ac /Loss , Existing Delention 0.03 8.67 0.0312 1.10 SBUHISCS TYPNA 2 yr I Existing Detenlion 0.12 8.17 0.0704 1.10 SBUH/SCS TYPEIA 10 yr Existinc�Detenlion 028 8.17 0.1383 1.10 5-:UiifSCS TVPEIA 700 yr ( Drainage Area: Existing Detention I Hyd Method: SBUH Hyd Loss Method: SCS CN Number Peak Faclor: 484.00 SCS Abs: 020 I Storm Dur: 24.00 hrs Intv: 10.00 min Area CN TC Pervious 1.1000 ac 81.00 0.31 hrs Impervious 0.0000 ac 0.00 0.00 hrs I Total 1.1000 ac Supportfng Data: Pervious CN Data: Second Growth Foresl 81.00 1.1000 ac f Pervious TC Data: � Flow lype: Descriplion: Length: Slope: Coeff: Travel Time Sheet Sheet 50.00 ft 2.00°/a 0.4000 17J2 min r Channel Channel 200.00 ft 2.00% 20.0000 1.18 min I PROPOSED DETENTION BASIN ( Proposed Detention Event Summary: BasinlD Peak Q Peak T Peak Vol Area Method Rainlype Event ------- (cts) (hrs) (ao-tq ac /Loss Proposed�elention028 7.83 0.0952 1.11 SBUH/SCS TYPEIA 2yr I ProposedDetention045 7.83 0.1522 1.11 S6UH/SCS TYPEtA 10yr Proposed Delenlion0.71 7.83 0.2375 1.11 S�UH/SCS TYPEIA 100 yr � Drainage Area: Proposed Detention Hyd Method: S�UH Hyd Loss Method: SCS CN Number Peak Factor: 484.00 SCS Abs: 0.20 Slorrn Dur: 24.00 hrs Intv: 10.00 min I Area CN TC Pervious 0.3550 ac D3A0 0.07 hrs Impervious 0.7500 ac 98.00 OA4 hrs Total 1.1050 ac I Supporting Data: Pervious CN Data: Landscape 83.00 0.3550 ac Impervious CN Data: Roof Pavement 98.00 0.7500 ac Pervious TC Data: Flow type: Description: Length: Slope: CoefL Travel Time Sheet Sheei 20.00 ft 2.00% 0.1500 3.88 min Channel Pipe 150.00 ft 1.00% 42.0000 0.60 min Impervious TC Data: