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HomeMy WebLinkAbout06 02 2009 LPA Group RAI #1 Supp App 40-061-68172-14THE LPA GROUP INCORPORATED =� Transportation Consultants / 615 CRESCENT EXECUTIVE COURT ■ SUITE 200 a LAKE MARY, FLORIDA 32746-2146 ■ 407-306-0200 ■ FAX 407-306-0460 -r. June 2, 2009 Mr. Mark Crosby, Engineer Department of Water Resources St. Johns River Water Management District 525 Community College Parkway S.E. Palm Bay, Florida 32909 Subject: Sebastian Municipal Airport Stormwater Master Plan Update Application No. 40-061-68172-14 Dear Mr. Crosby: The following are responses to the phone call we received on June 1, 2009, regarding our RAI#1 Submission, dated May 8, 2009. Enclosed, please find the following: + Revised Drainage Calculations Correspondence + Electronic Signed and Sealed Signature Document Also, please note the following updates since the original submittal: + Drainage Calculations: The percolation link has been removed from ICPR. We appreciate your patience, and look forward to completing the permit modification with you. Should you have any questions, please do not hesitate to call me in the Lake Mary office at 407- 306-0200. Sincerely, THE LPA GROUP INCORPORATED Robert /4mrecVt Project Manager cc: Joe Griffin (City of Sebastian) File (TA412028.1 g-SJRWMD) ATLANTA ■ BALTIMORE ■ BATON ROUGE a CHARLOTTE ■ COLUMBIA ■ FALLS CHURCH ■ GREENSBORO ■ IRVINE ■ JACKSONVILLE ■ KENNESAW ■ KNO)MLLE LITTLE ROCK r MOBILE ■ NASHVILLE o OCEAN SPRINGS v ORLANDO ■ RALEIGH ■ SARASOTA ■ TALLAHASSEE m TAMPA a WEST PALM BEACH &PERMITTING SIGNATURE DOCUMENT Page 1 of 1 OE-Permitting SIGNATURE DOCUMENT Permit Number: 68172 -14 Submittal Confirmation Number: 186488 Project Name: Airport Drive East Extension This document is signed and sealed to secure the electronic files referenced by the signature files as described in the Florida Department of Business and Professional Regulation. Signature File Created: Tue Jun 02 14:52:06 EDT 2009 Number Signed/Sealed Files: 1 Name: Robert K. Hambrecht Type of Profesional Registration: PE License Number: 63985 Flo�da P.E, 63985 t Signature: z 1HE LRk GROUP INCORPORATED 615 Crescent Executive Ct. Ste 200 Date: v/ �' 0,9 I �A lake Mary, FL 32746.2146 < I 407-306.020010460 (lord SIGNATURE FILE NAME: RAI #1,Supplemental, 3ubmission 6-2-2009.pdf SHA-1: CAA23462850AB57131569274C551520609C7049C DESCRIPTION: RAI #1 Supplemental, triformation -- End of Signature Document -- https://permitting.sjrwmd.com/epermitting/j sp/SignSealAction.do 6/2/2009 St. Johns River Water Management District RAI #1 Supplemental Information for Sebastian Municipal Airport Airport Drive East Extension ., Rik ,.�. June 2009 Sebastian Municipal Airport Airport Drive East Extension RAI #1 Supplemental + Drainage Calculations + Correspondence Drainage Calculations Summary of Results Basin Proposed Conditions ICPR Input / Outputl o Nodal Diagram o Input Report o Node Minimum /Maximum o Basin Summary Report Project: Airport Drive East Location: Indian River Count\ Summary of Results Basin By: Checked: Peak Flow Rates to Outfalls HS Date: 6/2/2009 SG Date: 6/2/2009 Storm Event Pre- Post -Development Node Development Discharae (cfs) (cfs) Outfall1 2.5-yr/24-Hr 1.54 1.25 Outfall2 25-yr/24-Hr 3.10 2.31 Outfall3 25-yr/24-Hr 9.65 9.78 Outfall 1 Mean Annual 1.06 0.95 Outfall 2 Mean Annual 1.94 1.26 Outfall 3 Mean Annual 3.81 2.20 Max Stage Table Top of Bank Edge of Post -Developed Post -Developed Node (ft) Pavement (ft) (ft) (ft) 25-year 24-hour Mean Annual Airport Drive East B 20.50 20.50 20.17 19.55 Airport Drive East C 20.15 20.20 20.17 19.55 Hangar A 20.25 20.20 20.12 19.55 Proposed Pond 20.25 - 20.04 19.55 Proposed Conditions ICPR Input /Output + Input Data + Node Minimum /Maximum + Basin Summary Report Post -Development Nodal Diagram Nodes A Stage/Area V Stage/volume T Time/Stage M Manhole A:Airport Dr E-A Basins U:Airport Dr E-A O Overland Flow U SCS Unit CN S SBUH CN Y SCS Unit GA Z SBUH GA P:EXISTING 6" Links P Pipe W Weir C Channel D Drop Structure B Bridge R Rating Curve T:Outfall 1 H Breach E Percolation F Filter X Exfil Trench A:XS1 C: Swale A:XS2 U:Maint. C P:Ex. 12" Pipe T:Outfall 2 A:Airport Dr E-C U:Airport Dr E-C P:AD•E C to ADE B A:Airport Dr E-B C U:Airport Dr E-B A:XSA P:ADE B to Han A U:Maint. A A:Hangar A U:Hangar A P:Han A-Maint C:XSA-XSB A:Proposed Pond — W:Pro. Weir —i / A:XSB U:Maint. B U:Maint. D Interconnected Channel and Pond Routing Model (ICPR) (2002 Streamline Technologies, Inc. u C:XSB-XSC A: XSC U:Maint. E P:Ex. 24" CMP T:Outfall 3 Post -Development Input Report ------------------------------------------------------------------- ___= Basins ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ Name: Airport Dr E-A Node: Airport Dr E-A Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 30.00 Area(ac): 7.170 Time Shift(hrs): 0.00 Curve Number: 86.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------- Name: Airport Dr E-B Node: - ------------------------------- Airport Dr E-B Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Rainfall File: Rainfall Amount(in): 0.000 Area(ac): 0.530 Curve Number: 90.00 DCIA(%): 0.00 Peaking Factor: 256.0 Storm Duration(hrs): 0.00 Time of Conc(min): 10.00 Time Shift(hrs): 0.00 Max Allowable Q(cfs): 999999.000 ----------- Name• Airport Dr E-C Node.. Airport Dr E-C Status: Onsite Group: SASE Type. SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Rainfall File: Rainfall Amount(in): 0.000 Area(ac): 0.440 Curve Number: 89.00 DCIA(%): 0.00 Peaking Factor: 256.0 Storm Duration(hrs): 0.00 Time of Conc (min.) : 10.00 Time Shift(hrs): 0.00 Max Allowable Q(cfs). 999999.000 ---------------------------------------------------------------------------------------------------- Name: Hangar A Node: Hangar A Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min); 14.00 Area(ac): 2.440 Time Shift(hrs); 0.00 Curve Number: 85.00 Max Allowable Q(cfs). 999939.000 DCIA(%): 0.00 ------------------------------------------------------------------------------------------ Name: Maint. A Node: XSA Status: Onsite Group: EASE Type; SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 25.00 Area(ac): 1.200 Time Shift(hrs): 0.00 Curve Number: 71.00 Max Allowable Q(cfe): 999999.000 DCIA(%): 0.00 -----------------------`--------------------------_-------------------------------------------- Name: Maint.. B Node: Proposed Pond Status: - --- Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 4.290 Time Shift(hrs): 0.00 Curve Number: 82.00 Max Allowable Q(cfs): 999999,000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: Maint. C Node: XS2 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 13.00 Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 1 of 8 Post -Development Input Report Area(ac): 1.360 Time Shift(hrs): 0.00 Curve Number: 69.00 Max Allowable Q(cfs): 0.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: Maint. D Node: XSB Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Rainfall File: Rainfall Amount(in): 0.000 Area(ac): 0.720 Curve Number: 70.00 DCIA(%): 0.00 Peaking Factor: 256.0 Storm Duration(hrs): 0.00 Time of Conc(min): 30.00 Time Shift(hrs): 0.00 Max Allowable Q(cfs): 999999.000 ---- - -------- Name• Maint. E Node: XSC Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Rainfall File: Rainfall Amount(in): 0.000 Area(ac): 0.680 Curve Number: 63.00 DCIA(%): 0.00 Peaking Factor: 256.0 Storm Duration(hrs): 0.00 Time of Conc(min): 19.00 Time Shift(hrs): 0.00 Max Allowable Q(cfs): 999999.000 ----------------------------------------- Nodes==========================================-==-=-------------------------------- ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ Name: Airport Dr E-A Base Flow(cfs): 0.000 Init Stage(ft): 17.000 Group: BASE Warn Stage(ft): 20.000 Type: Stage/Area Existing Depressional Area prior to discharging to the existing double metal 6" pipes Stage(ft) Area(ac) ------------------------------ 17.000 0.0100 18.000 0.4800 19.000 2.1200 -------- - ---------------------------------------- Name: Airport Dr E-B Base Flow(cfs): 0.000 Init Stage(ft): 19.500 Group: BASE Warn Stage(ft): 20.500 Type: Stage/Area Median Swale Stage(ft) ------------------------------ Area(ac) 19.500 0.1100 20.500 0.1700 ------------------------------------------------------------------------------------------ Name: Airport Dr E-C Base Flow(cfs): 0.000 Init Stage(ft): 19.000 Group: BASE Warn Stage(ft): 20.000 Type: Stage/Area Kidney Swale Stage(ft) ------------------------------ Area(ac) 19.000 0.0800 20.000 0.1100 ---------- Name: Hangar A ----------------------------------------------------------------- Base Flow(cfs): 0.000 Init Stage(ft): 19.500 Group: BASE Warn Stage(ft): 20.230 Type: Stage/Area Stage(ft) Area(ac) 19.500 0.0300 20.250 0.1400 ------------------------------------------------------------------------------------------ Name: Outfall 1 Base Flow(cfs): 0.000 Init Stage(ft): 17.830 Group: BASE Warn Stage(ft): 20.000 Type: Time/Stage Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 2 of 8 Post -Development Input Report Time(hrs) Stage(ft) 0.00 17.830 100.00 17.830 ---------------- -- ----- - ------ - Name: Outfall 2 Base Flow(cfs): 0.000 Init Stage(ft): 14.870 Group: BASE Warn Stage(ft): 0.000 Tyne: Time/Stage 17.83' is from the 25 year-24 hour peak stage of the adjacent golf course Pond 3 Time(hrs) Stage(ft) ------------------------------ 0.00 14.870 12.00 17.830 100.00 14.870 ------------------------------------------------------------------------------------------ Name: Outfall 3 Base Flow(cfs): 0.000 Init Stage(ft): 15.990 Group: BASE Warn Stage(ft): 0.000 Type: Time/Stage Existing 24" Pipe Invert El. 15.99; Crown of Pipe El. 17.99 T'_me(hrs) Stage(ft) ------------------------------ 0.00 15.990 12.00 17.990 100.00 15.990 ------------------------------------------------------------------------------------------ Name: Proposed Pond Base Flow(cfs): 0.000 Init Stage(ft): 19.000 Group: BASE Warn Stage(ft):. 20.250 Type: Stage/Area Proposed Pond Stage(ft) Area(ac) ------------------------------ 19.000 2.4600 20.000 2.6400 20.250 2.6800 ------------- ---------------------------------------------- Name: XS1 Base Flow(cfs): 0.000 Init Stage(ft): 18.950 Group: BASE Warn Stage(ft): 19.020 Type: Stage/Area Stage(ft) Area(ac) 18.950 0.0000 19.000 0.0004 ------------ -------------------------------------- Name: XS2 Base Flow(cfs): 0.000 Init Stage(ft): 17.830 Group: BASE Warn Stage(ft): 19.000 Type: Stage/Area Stage(ft) Area(ac) ------------------------------ 17.830 0.0000 18.000 0.0004 -------------------- ---------------------------------------------------- Name: XSA Base Flow(cfs): 0.000 Init Stage(ft): 17.520 Group: BASE Warn Stage(ft): 19.000 Type: Stage/Area Stage(ft) Area(ac) 17.520 0.0000 18.000 0.0001 19.000 0.0003 ------------------------------------------------------------------------------------------ Name: XSB Base Flow(cfs): 0.000 Init Stage(ft): 16.560 Group: BASE Warn Stage(ft): 18.000 Type: Stage/Area Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 3 of 8 Post -Development Input Report Stage(ft) Area(ac) ------------------------------ 16.560 0.0000 17.000 0.0003 18.000 0.0005 ------------------------------------------------------------------------------------------ Name: XSC Base Flow(cfs): 0.000 Init Stage(ft): 15.92❑ Group: BASE Warn Stage(ft): 18.400 Type: Stage/Area Stage(ft) Area(ac) 15.920 0.0000 16.000 0.0000 17.000 0.0005 18.000 0.0020 18.400 0.0060 ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ___= cross Sections Name: XSA Group: BASE Encroachment: No Station(ft) Elevation(ft) Manning's N 0.000 19.000 0.035000 42.000 18.000 0.035000 61.000 17.520 0.035000 65.000 18.000 0.035000 73.000 19.000 0.035000 105.000 19.400 0.011000 -------------------------------- Name: XSB - ------------------'-------------- .Group: BASE Encroachment: No Station(ft) Elevation(ft) Manning's N 0.000 19.000 0.035000 6.000 18.000 0.035000 12.000 17.000 0.035000 17.000 16.560 0.035000 22.000 17.000 0.035000 39.000 18.000 0.035000 60.000 19.000 0.011000 80.000 20.000 0.011000 100.000 21.000 0.011000 113.000 22.000 0.011000 138.000 23.000 0.011000 --------------------------------------------------------------------- Name: XSC Group: BASE Encroachment: No Station(ft) Elevation(ft) Manning's N 0.000 21.000 0.011000 9.000 20.490 0.035000 16.000 19.510 0.035000 43.000 20.520 0.035000 159.000 21.000 0.011000 --------------------------------------------------------------------- Name: XSD Group: BASE Encroachment: No Station(ft) Elevation(ft) Manning's N 0.000 19.000 0.035000 212.000 18.000 0.035000 247.000 17.000 0.035000 265.000 16.000 0.035000 266.000 15.920 0.035000 267.000 16.000 0.035000 Interconnected Channel and Pond Routing Model (ICPR) ©2002 Streamline Technologies, Inc. Page 4 of 8 Post -Development Input Report Upstream FHWA inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description; Circular Concrete: Square edge w/ headwall ----------------------------------------------------------------------------- Name: EXISTING 6' From Node: Airport Dr E-A Length(ft): - ----------------- 137.00 Group: BASE To Node: Outfall 1 Count: 2 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 6.00 6.00 Entrance Loss Coef: 0.00 Rise(in): 6.00 6.00 Exit Loss Coef: 1.00 Invert(ft): 17.100 16.860 Bend Loss Coef: 0.00 Manning's N: 0.013000 0.013000 Outlet Ctrl Spec: Use do or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use do Hot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description; Circular Concrete: Square edge w/ headwall Name: - --- Han A-Maint -- From Node: ------------------------------------------------ Hangar A Length(ft)- 50.00 Group: BASE To Node: Proposed Pond Count:. 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 24.00 24.00 Entrance Loss Coef: 0.00 Rise(in): 24.00 24.00 Exit Loss Coef: 1.00 Invert(ft): 17.000 16.800 Bend Loss Coef: 0..00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use do or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use do Hot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Channels --------------------------- Name: Swale From Node: XS1 Length(ft): 216.00 Group: EASE To Node; XS2 Count: 1 UPSTREAM DOWNSTREAM Friction Equation: Automatic Geometry: Trapezoidal Trapezoidal Solution Algorithm: Automatic Invert(ft): 18.540 17.830 Flow: Both TC1pInitZ(ft): 9999.000 9999.000 Contraction Coef: 0.100 Manning's N: 0.030000 0.030000 Expansion Coef: 0.300 Top Clip(ft): 0.000 0.000 Entrance Loss Coef: 0.000 Hot Clip(ft): 0.000 0.000 Exit Loss Coef: 0.000 Main XSec: Outlet Ctrl Spec: Use do or tw AuxElevl(ft): Inlet Ctrl Spec: Use do Aux XSecl: Stabilizer Option: None AuxElev2(ft): Aux XSec2: Top Width(ft): Depth(ft): Hot Width(ft): 4.000 4.000 LtSdSlp(h/v): 6.00 6.00 RtSdSlp(h/v): 6.00 6.00 ---------------------------------------------------------------------------------------------------- Name: XSA-XSB From Node: XSA Length(ft): 350.00 Group: BASE To Node: XSB Count: 1 UPSTREAM DOWNSTREAM Friction Equation: Automatic Interconnected Channel and Pond Routing Model (1CPR) 02002 Streamline Technologies, Inc. Page 6 of 8 Poet -Development Input Report 287.000 17.000 0.035000 296.000 18.000 0.035000 331.000 18.400 0.035000 ------------ -----------------------------------------__-__-------_--------------------------------- ___= Pipes _____________________________________ -------------------- Name: AIDE B to Han A From Node: Airport Dr E-B Length(ft): 38.00 Group: BASE To Node: Hangar A Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 18.00 18.00 Entrance Loss Coef: 0.00 Rise(in): 18.00 18.00 Exit Loss Coef: 1.00 Invert(ft): 17.400 17.300 Bend Loss Coef: 0.00 Manning's N: 0.013000 0.013000 Outlet Ctrl Spec: Use do or tw Top Clip(ir): 0.000 0.000 Inlet Ctrl Spec: Use do Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------- --------------------------P------------------------------------------------- Name: ADE C to ADE B From Node: Airport Dr E-C Length(ft): 42.00 Group: BASE To Node: Airport Dr E-B Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most. Restrictive Geometry: Circular Circular Flow: Both Span(in): 18.00 18.00 Entrance Loss Coef: 0.00 Rise(in): 18.00 18.00 Exit Loss Coef: 1.00 Invert(ft): 17.500 17.400 Bend Loss Coef: 0.38 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use do or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use do Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ------ --- Name: -------------------------------------------------------------------------------- Ex. 12" Pipe From Node: XS2 Length(ft): 105.00 Group: BASE To Node: Outfall 2 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 10.00 10.00 Entrance Loss Coef: 0.00 Rise(in): 10.00 10.00 Exit Loss Coef: 1.00 Invert(ft): 17.830 14.870 Bend Loss Coef: 0.00 Manning's N: 0.016000 0.016000 Outlet Ctrl Spec: Use do or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use do Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Survey found a 12" CMP upstream at el. 17.83 and they found an 8" PVC downstream at el. 14.87 Manning's N used is an equivalent weighted value of the pipe --------- Name: Ex. 24" CMP --------------------------------------------------------------------- From Node: XSC Length(ft): 21.00 Group: BASE To Node: Gutfall 3 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 24.00 24.00 Entrance Loss Coef: 0.00 Rise(in): 24.00 24.00 Exit Loss Coef: 1.00 Invert(ft): 15.920 15.990 Bend Loss Coef: 0.00 Manning's N: 0.025000 0.025000 Outlet Ctrl Spec: Use do or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use do Sot Clip(in): 0.000 0.000 Stabilizer Option: None Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 5 of 8 Post -Development Input Report Geometry: Irregular Irregular Solution Algorithm: Automatic Invert(ft): 17.520 15.950 Flow: Both TC1pInitZ(ft): 9999.000 9999.000 Contraction Coef: 0.100 Manning's N: Expansion Coef: 0.300 Top Clip(ft): Entrance Loss Coef: 0.000 Bot Clip(ft): Exit Loss Coef: 0.000 Main XSec: XSA XSB Outlet Ctrl Spec: Use do or tw AuxElevl(ft): 0.000 0.000 Inlet Ctrl Spec: Use do Aux XSecl: Stabilizer Option: None AuxElev2(ft): 0.000 0.000 Aux XSec2: Top Width(ft): Depth(ft) : Bot Width(ft): LtSdSlp(h/v): RtSdSlp (h/v) : --------------------------------------------------------- Name: XSB-XSC From Node: XSB --------------------------------- Len th(ft): 156.00 Group: BASE To Node: XSC Count: 1 UPSTREAM DOWNSTREAM Friction Equation: Automatic Geometry: Irregular Irregular Solution Algorithm: Automatic Invert(ft): 15.950 15.920 Flow: Both TC1pInitZ(ft): 9999.000 9999.000 Contraction Coef: 0.100 Manning's N: Expansion Coef: 0.300 Top Clip(ft): Entrance Loss Coef: 0.000 Bot Clip(ft): Exit Loss Coef: 0.000 Main XSec: XSB XSC Outlet Ctrl Spec: Use do or tw AuxElevl(ft): 0.000 0.000 Inlet Ctrl Spec: Use do Aux XSecl: Stabilizer option: None AuxElev2(ft): 0.000 0.000 Aux XSec2: Top Width(ft): Depth(ft): Bot Width(ft): LtSdSlp(h/v): RtSdSlp(h/v): ------------------------------------- Weirs Name: Pro. Weir From Node: Proposed Pond Group: BASE To Node: XSB Flow: Both Count: 1 Type: vertical: Fread Geometry: Trapezoidal Bottom Width(ft): 0.00 Left Side Slope(h/v): 4.00 Right Side Slope(h/v): 4.00 Invert(ft): 19.200 Control Elevation(ft): 19.200 Struct Opening Dim(ft): 9999.00 TABLE Bottom Clip(ft): 0.000 Top Clip(ft): 0.000 Weir Discharge Coef: 3.200 Orifice Discharge Coef: 0.600 ----------------------- ------------------------------------------------------------------------------------------ ___= Hydrology Simulations ________ --------------- ________________________________________ ------------- Name: 25 YR-24HR Filename: Y:\Airports\X26 - Sebastian\TA412028(Airport_Dr_East_Extension)\documents\2e-drainage\ADE and Maint Building\ICPR Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 9.50 Time(hrs) Print Inc(min) 6.000 15.00 24.000 5.00 100.000 15.00 ------------------------------------------------- Name: Mean Annual Filename: Y:\Airports\X26 - Sebastian\TA412028(Airport _Dr_East_Extension)\documents\2e-drainage\ADE and Maint Building\ICPR Override Defaults: Yes Interconnected Channel and Pond Routing Model (ICPR) ©2002 Streamline Technologies, Inc. Page 7 of 8 Post -Development Input Report Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 4.80 Time(hrs) Print Inc(min) ------------------------------ 6.000 15.00 24.000 5.00 100.000 2.5.00 ===== --------------- ---- Routing Simulations __________ ------ ___---------------------- ________________________ ------------------------------------------------=---====---------------------------------- Name: 25 YR-24 HR Hydrology Sim: 25 YR-24HR Filename: Y:\Airports\X26 - Sebastian\TA412028(Airport_Dr_East_Extension)\documents\2e-drainage\ADE and Maint Building\ICPR Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 100.00 Min Calc Time(sec): 0.0100 Max Calc Time(sec): 0.1000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 100.000 5.000 Group Run --------------- ----- BASE Yes ----------------------------------------------------------------------- ------ Name: Mean Annual Hydrology Sim: Mean Annual Filename: Y:\Airports\X26 - Sebastian\TA412028(Airport _Dr_East_Extension)\documents\2e-drainage\ADE and Maint Building\ICPR Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Cptimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 100.00 Min Calc Time(sec): 0.0100 Max Calc Time(sec): 0.1000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) 100.000 5.000 Group Run --------------- ----- BASE Yes Interconnected Channel and Pond Routing Model (ICPR) ©2002 Streamline Technologies, Inc. Page 8 of 8 Post -Development Node Min/Max Report Max Time Max Warning Max Delta Max Surf Max Time Max Max Time Max Name Group SimulaLion Stage Stage Stage Stage Area Inflow inflow Outflow Outflow hrs ft ft ft ft2 hrs Cfs hrs Cfs Airport Dr E-B BASE 25 YR-24 HR 12.53 20.17 20.50 -0.0030 6534 12.08 3.21 12.50 2.23 Airport Dr E-C BASE 25 YR-24 HR 12.52 20.17 20.00 0.0001 5020 12.00 2.32 12.50 1.01 Hangar A BASE 25 YR-24 HR 12.57 20.12 20.25 -0.0042 5301 12.08 11.94 0.00 14.41 Outfall 1 BASE 25 YR-24 HR 0.00 17.83 20.00 0.0000 20 18.91 1.25 0.00 0.00 Outfall 2 BASE 25 YR-24 HR 12.00 17.83 0.00 0.0000 2 12.64 2.31 0.00 0.00 Outfall 3 BASE 25 YR-24 HR 12.00 17.99 0.00 0.0000 0 13.14 9.78 0.00 0.00 Proposed Pond BASE 25 YR-24 HR 13.09 20.04 20.25 0.0000 115294 12.08 31.19 13.09 6.60 Airport Dr E-B BASE Mean Annual 17.20 19.55 20.50 -0.0030 4925 12.14 1.71 0.00 2.18 Airport Dr E-C BASE Mean Annual 17.20 19.55 20.00 0.0001 4205 12.00 1.05 0.00 0.73 Hangar A BASE Mean Annual 17.20 19.55 20.25 -0.0042 1629 12.09 6.32 0.00 14.41 Outfall 1 BASE Mean Annual 0.00 17.83 20.00 0.0000 20 16.02 0.95 0.00 0.00 Outfall 2 BASE Mean Annual 12.00 17.83 0.00 0.0000 42 12.30 1.26 0.00 0.00 Outfall 3 BASE Mean Annual 12.00 17.99 0.00 0.0000 0 12.46 2.20 0.00 0.00 Proposed Pond BASE Mean Annual 17.23 19.55 20.25 0.0000 111469 12.08 14.84 17.23 0.73 Interconnected Channel and Pond Routing Model (1CPR) 02002 Streamline Technologies, Inc. Page 1 of I Post -Development Basin Summary Report Basin Name: Group Name: Simulation: Node Name: Basin Type: Unit Hydrograph: Peaking Fator: Spec Time Inc (min): Comp Time Inc (min): Rainfall File: Rainfall Amount (in): Storm Duration (hrs): Status: Time of Corc (min): Time Shift (hrs): Area (ac): Vol of Unit Hyd (in): Curve Number: DCIA (%): Airport Dr E-A BASE 25 YR-24HR Airport Dr E-A SCS Unit Hydrograph Uh256 256.0 4.00 4.00 Flmod 9.500 24.00 Onsite 30.00 0.00 7.170 1.000 86.000 0.000 Time Max (hrs): 12.27 Flow Max (cfs): 22.76 Runoff Volume (in): 7.789 Runoff Volume (ft3): 202730 Basin Name: Group Name: Simulation: Node Name: Basin Type: Unit Hydrograph: Peaking Fator: Spec Time Inc (min): Comp Time Inc (min): Rainfall File: Rainfall Amount (in): Storm Duration (hrs): Status: Time of Corc (min) : Time Shift (hrs): Area (ac): Vol of Unit Hyd (in): Curve Number: DCIA (%): Airport Dr E-B BASE 25 YR-24HR Airport Dr E-B SCS Unit Hydrograph Uh256 256.0 1.33 1.33 Flmod 9.500 24.00 Onsite 10.00 0.00 0.530 1.000 90.000 0.000 Time Max (hrs): 12.04 Flow Max (cfs): 2.90 Runoff Volume (in): 8.283 Runoff Volume (ft3): 15935 Basin Name: Group Name: Simulation: Node Name: Basin Type: Unit Hydrograph: Peaking Fator: Spec Time Inc (min): Comp Time Inc (min): Rainfall File: Rainfall Amount (in): Storm Duration (hrs): Status: Time of Conc (min): Time Shift (hrs): Area (ac): Vol of Unit Hyd (in): Curve Number: DCIA (%): Airport Dr E-C BASE 25 YR-24HR Airport Dr E-C SCS Unit Hydrograph Uh256 256.0 1.33 1.33 Flmod 9.500 24.00 Onsite 10.00 0.00 0.440 1.000 89.000 0.000 Time Max (hrs): 12.04 Fiow Max (cfs): 2.39 Runoff Volume (in): 8.160 Runoff Volume (ft3): 13033 Basin Name: Hangar A Group Name: BASE Interconnected Channel and Pond Routing Model (ICPR) C2002 Streamline Technologies, Inc. Page 1 of 6 Post -Development Basin Summary Report Simulation: 25 YR-24HR Node Name: Hangar A Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.87 Comp Time Inc (min): 1.87 Rainfall File: Flmod Rainfall Amount (in): 9.500 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 14.00 Time Shift (hrs): 0.00 Area (ac): 2.440 Vol of Unit Hyd (in): 1.000 Curve Number; 85.000 DCIA (%): 0.000 Time Max (hrs): 12.07 Flow Max (cfs): 11.10 Runoff Volume (in): 7.664 Runoff Volume (ft3): 67881 Basin Name: Maint. A Group Name: BASE Simulation: 25 YR-24HR Node Name: XSA Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 3.33 Comp Time Inc (min): 3.33 Rainfall File: Flmod Rainfall Amount (in): 9.500 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 25.00 Time Shift (hrs): 0.00 Area (ac): 1.200 Vol of Unit Hyd (in): 1.000 Curve Number: 71.000 DCIA (W): 0.000 Time Max (hrs): 12.22 Flow Max (cfs): 3.26 Runoff Volume (in): 5.903 Runoff Volume (ft3): 25715 Basin Name: Maint. B Group Name: BASE Simulation: 25 YR-24HR Node Name: Proposed Pond Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Flmod Rainfall Amount (in): 9.500 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 4.290 Vol of Unit Hyd (in): 1.o00 Curve Number: 82.000 DCIA (%;): 0.000 Time Max (hrs): 12.04 Flow Max (cfs): 21.53 Runoff Volume (in): 7.291 Runoff Volume (ft3): 113546 Basin Name: Maint. C Group Name: BASE Simulation: 25 YR-24HR Node Name: XS2 Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 2 of 6 Post -Development Basin Summary Report Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.73 Comp Time Inc (min): 1.73 Rainfall File: Flmod Rainfall Amount (in): 9.500 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 13.00 Time Shift (hrs): 0.00 Area (ac): 1.360 Vol of Unit Hyd (in): 1.000 Curve Number: 69.000 DCIA (5k): 0.000 Time Max (hrs): 12.08 Flow Max (cfs): 4.86 Runoff Volume (in): 5.646 Runoff Volume (ft3): 27875 Basin Name: Maint. D Group Name: BASE Simulation: 25 YR-24HR Node Name: XSB Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 4.00 Comp Time Inc (min): 4.00 Rainfall File: Flmod Rainfall Amount (in): 9.500 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 30.00 Time Shift (hrs): 0.00 Area (ac): 0.720 Vol of Unit Hyd (in): 1.000 Curve Number: 70.000 DCIA (%): 0.000 Time Max (hrs): 12.27 Flow Max (cfs): 1.74 Runoff Volume (in): 5.776 Runoff Volume (ft3): 15096 Basin Name: Maint. E Group Name: BASE Simulation: 25 YR-24HR Node Name: XSC Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 2.53 Comp Time Inc (min): 2.53 Rainfall File: Flmod Rainfall Amount (in): 9.500 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 19.00 Time Shift (hrs): 0.00 Area (ac): 0.680 Vol of Unit Hyd (in): 1.000 Curve Number: 63.000 DCIA (t): 0.000 Time Max (hrs): 12.16 Flow Max (cfs): 1.74 Runoff Volume (in): 4.879 Runoff Volume (ft3): 12042 Basin Name: Airport Dr E-A Group Name: BASE Simulation: Mean Annual Node Name: Airport Dr E-A Basin Type: SCS Unit Hydrograph Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 3 of 6 Post -Development Basin Summary Report Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 4.00 Comp Time Inc (min): 4.00 Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 30.00 Time Shift (hrs): 0.00 Area (ac): 7.170 Vol of Unit Hyd (in): 1.000 Curve Number: 86.000 DCIA (a): 0.000 Time Max (hrs): 12.27 Flow Max (cfs): 9.82 Runoff Volume (in): 3.280 Runoff Volume (ft3): 85360 Basin Name: Airport Dr E-B Group Name: BASE Simulation: Mean Annual Node Name: Airport Dr E-B Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs): 24.00 Status: onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 0.530 Vol of Unit Hyd (in): 1.000 Curve Number: 90.000 DCIA (%): 0.000 Time Max (hrs): 12.04 Flow Max (cfs): 1.34 Runoff Volume (in): 3.682 Runoff Volume (ft3): 7085 Basin Name: Airport Dr E-C Group Name: BASE Simulation: Mean Annual Node Name: Airport Dr E-C Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs): 24.00 Status: onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 0.440 Vol of Unit Hyd (in): 1.000 Curve Number: 89.000 DCIA (%): 0.000 Time Max (hrs): 12.04 Flow Max (cfs): 1.09 Runoff Volume (in): 3.580 Runoff Volume (ft3): 5717 Basin Name: Hangar A Group Name: BASE Simulation: Mean Annual Node Name: Hangar A Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 4 of 6 Post -Development Basin Summary Report Spec Time Inc (min): 1.87 Comp Time Inc (min): 1.87 Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 14.00 Time Shift (hrs): 0.00 Area (ac): 2.440 Vol of Unit Hyd (in): 1.000 Curve Number: 85.000 DCIA (%): 0.000 Time Max (hrs): 12.07 Flow Max (cfs): 4.74 Runoff volume (in): 3.182 Runoff Volume (ft3): 28184 Basin Name: Maint. A Group Name: BASE Simulation: Mean Annual Node Name: XSA Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 3.33 Comp Time Inc (min): 3.33 Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 25.00 Time Shift (hrs): 0.00 Area (ac): 1.200 Vol of Unit Hyd (in): 1.000 Curve Number: 71.000 DCIA (%): 0.000 Time Max (hrs): 12.28 Flow Max (cfs): 1.04 Runoff Volume (in): 1.966 Runoff Volume (ft3): 8563 Basin Name: Maint. B Group Name: BASE Simulation: Mean Annual Node Name: Proposed Pond Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 4.290 Vol of Unit Hyd (in): 1.000 Curve Number: 82.000 DCIA (%): 0.000 Time Max (hrs): 12.04 Flow Max (cfs): 8.79 Runoff Volume (in): 2.900 Runoff Volume (ft3): 45158 Basin Name: Maint. C Group Name: BASE Simulation: Mean Annual Node Name: XS2 Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.73 Comp Time Inc (min): 1.73 Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 5 of 6 Post -Development Basin Summary Report Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs); 24.00 Status: Onsite Time of Conc (min): 13.00 Time Shift (hrs): 0.00 Area (ac): 1.360 Vol of Unit Hyd (in): 1.000 Curve Number: 69.000 DCIA CH: 0.000 Time Max (hrs): 12.08 Flow Max (cfs): 1.49 Runoff Volume (in): 1.812 Runoff Volume (ft3): 8945 Basin Name: Maint. D Group Name; BASE Simulation: Mean Annual Node Name: XSB Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 4.00 Comp Time Inc (min): 4.00 Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 30.00 Time Shift (hrs): 0.00 Area (so): 0.720 Vol of Unit Hyd (in): 1.000 Curve Number: 70.000 DCIA (%); 0.000 Time Max (hrs): 12.33 Flow Max (cfs): 0.54 Runoff Volume (in): 1.889 Runoff Volume (ft3): 4936 Basin Name; Maint. E Group Name: BASE Simulation: Mean Annual Node Name: XSC Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 2.53 Comp Time Inc (min): 2.53 Rainfall File: Flmod Rainfall Amount (in): 4.800 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 19.00 Time Shift (hrs): 0.00 Area (ac): 0.680 Vol of Unit Hyd (in): 1.000 Curve Number: 63.000 DCIA (%): 0.000 Time Max (hrs): 12.20 Flow Max (cfs): 0.44 Runoff Volume (in): 1.383 Runoff Volume (ft3): 3413 Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Page 6 of 6 Correspondence Sample, Hillary From: Mark Crosby [mcrosby@sjrwmd.com] Sent: Tuesday, June 02, 2009 11:41 AM To: Hambrecht, Rob Cc: Sample, Hillary Subject: RE: Sebastian Airport Drive East 40-061-68172-14 (max outflow revision) That looks good; I recommend sending in the final copy for the record. In the mean time, I will forward this email and attachments into our permit database system so I can work on issuing the permit. thanks From: Hambrecht, Rob[mailto:RHambrecht@lpagroup.com] Sent: Tuesday, June 02, 2009 11:17 AM To: Mark Crosby Cc: Sample, Hillary Subject: Sebastian Airport Drive East 40-061-68172-14 (max outflow revision) Mark, As we discussed yesterday, we eliminated the Perc Link from the ICPR model. This changed the "max outflow" from outfall 3 to a reasonable number. I have attached the revised pertinent pages of the calculations for your review. As you can see the pre -post for the mean annual is still under, however the pre -post for the 25-yr/24-hr is just a bit over now. Please review the attached documents. If these are acceptable, I will sign, seal and resubmit for the record, (unless instructed otherwise). I appreciate your willingness to work with us on this issue. Please call me if you would prefer to discuss this further. Thanks Rob Robert K. Hambrecht, P.E. THE LPA GROUP INCORPORATED 615 Crescent Executive Court, Suite 200 Lake Mary, FL 32746-2146 407.306.0200 407.306.0460 (Fax) Confidentiality Notice This message is intended exclusively for the individual or entity to which it is addressed. This communication may contain information that is proprietary, privileged, confidential or otherwise legally exempt from disclosure. If you are not the named addressee, you are not authorized to read, print, retain, copy or disseminate this message or any part of it. If you have received this message in error, please notify the sender immediately either by phone (800-572-1115) or reply to this e-mail and delete all copies of this message.