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HomeMy WebLinkAboutCT 13-01; BUENA VISTA 11; STRUCTURAL CALCULATIONS FOR COASTAL LIVING; 2014-03-27RF,s STRUCT P.E. 604 SILVER BERRY PLACE, ENCTh4ITAS, CA. 92024 760.415.3611 THRANEK@YAHOO.COM 1 of 13 MARCH 27, 2014 STRUCTURAL CALCULATIONS FOR COASTAL LIVING NAVARRA - 10 Q to - '- NAVARRA DRIVE - SITE RETAINING WALLS CARLSBAD, CA. 92009 CITY OF CARLSBAD DESIGNER: MOONLIGHT DESIGNS 27IOLOKERAVE WEST, STE21O oss,o CARLSBAD, CA. 92010 4-4 (760) 533-7975 C 6028 03/27/2014 Ay(H NY J. HRANEK DATE c(644' 8 EXP. 6-30-15 DESCRIPTION: [Surcharge Loads Lateral Load Applied to Stem Surcharge Over Heel = 0.0 psf Lateral Load 0.0 #Ift Used To Resist Sliding & Overturning ...Height to Top = 0.00 it Surcharge Over Toe = 165.0 psI ...Height to Bottom = 0.00 it Used for Sliding & Overturning The above lateral load [A_ xial Load Applied to Stem------]ii has been increased by a factor of 1.00 Axial Dead Load = 0.0 lbs Wind on Exposed Stem = 0.0 psf Axial Live Load 0.0 lbs Axial Load Eccentricity = 0.0 In [Earth Pressure Seismic Load I Uniform Seismic Force = 5.330 Multiplier Used = 1.000 Total Seismic Force = 33.739 (Multiplier used on soil density) I Adjacent Footing Load Adjacent Footing Load = 500.0 lbs Footing Width = 1.00 it Eccentricity = 0.00 in Wall to Fig CL Dist = 2.00 it Footing Type Line Load Base Above/Below Soil 1.5 it at Back of Wall - Poisson's Ratio = 0.300 C Use menu item Settings :,, Printing & Title Block to set these five lines of information for your program. Title : 54 Page: 2 / 13 Job # : Navarra Dsgnr: AJH Date: 27 MAR 2014 Descr: eiainrro lu 1O(-U1x, Milo 1U.1J..31 Llcens: KW-06056810 Cantilevered Retaining Wall Design ode: CBC 201 0,ACI 318-08,ACI 530-08 License To: RES STRUCT P.E. [Criteria Retained Height = 5.33 it Wall height above soil 0.50 it Slope Behind Wall = 0.00:1 Height of Soil over Toe = 0.00 in Water height over heel = 0.0 it LSoil Data Allow Soil Bearing = 2,500.0 psf Equivalent Fluid Pressure Method Heel Active Pressure = 35.0 psf/ft Passive Pressure 250.0 psf/ft Soil Density, Heel 115.00 pcI Soil Density, Toe = 0.00 pcf FootingilSoll Friction 0.350 Soil height to Ignore for passive pressure = 0.00 in LAP SPLICE IF ABOVE In= 30.00 LAP SPLICE IF BELOW in = HOOK EMBED INTO FTG In = 6.00 Hook embedment reduced by stress ratio Masonry Data I'm psi = 2,000 Fs psi. 20,000 Solid Grouting = Yes Use Half Stresses = n/a Modular Ratio 'n' = 16.11 Short Term Factor = 1.000 Equiv. Solid Thick. in= 11.60 Masonry Block Type = Medium Weight Masonry Design Method = ASO Concrete Data ft psi= Fy psi. L Footing Design Results 1 Toe Heel Factored Pressure = 1,750 0 psf Mu': Upward = 52 0ft-# Mu': Downward • 14 0 ft-# Mu: Design = 39 0 ft-# Actual 1-Way Shear • 8.96 0.00 psi Allow 1-Way Shear = 82.16 0.00 psi Toe Reinforcing = #5 @ 16.00 In Heel Reinforcing = None Spec'd Key Reinforcing #5 @ 0.00 in Other Acceptable Sizes & Spacings Toe: Not reqd, Mu cS • Fr Heel: Not req'd, Mu <S • Fr Key: Not req'd, Mu <S • Fr Use menu Item Settings 3. Printing & Title Block Title : 5'4 Page: 3 / 13 to set these five lines of information Job # : Navarra Dsgnr: AJH Date: 27 MAR 2014 for your program. Descr: ,is Wall in File: c:\users\tony hranek\dropbox\res_structfi relight folder RetainPro 10 (C) 1987-2012, Build 10.13.8.31 License : Kw-06056810 Cantilevered Retaining Wall Design ode: CBC 2010,ACI 318-08,ACI 530-08 License To: RES STRUCT P.E. Wall Material Above Masonry Thickness • 12.00 Rebar Size • # 5 Rebar Spacing = 24.00 Rebar Placed at = Edge Design Data fb/FB + fa/Fa • 0.489 Total Force @ Section lbs = 593.8 Moment .... Actual ft-# = 1,064.2 Moment.....Allowable = 2,175.3 Shear ..... Actual psi. 5.5 Shear.....Allowable psi = 44.7 Wall Weight = 124.0 Rebar Depth d' In= 9.00 Soil Pressure @ Toe = 1,458 psi OK Soil Pressure @ Heel 0 psi OK Allowable = 2,500 psi Soil Pressure Less Than Allowable ACI Factored @ Toe = 1,750 psi ACI Factored @ Heel 0 psf Footing Shear @ Toe = 9.0 psi OK Footing Shear @ Heel 0.0 psi OK Allowable 82.2 psi Sliding Calcs (Vertical Component Used) Lateral Sliding Force = 812.4 lbs less 100% Passive Force. - 741.0 lbs less 100% Friction Force - 526.0 lbs Added Force Req'd 0.0 lbs OK ....for 1.5:1 Stability = 0.0 lbs OK [Footing Dimensions & Strengths • Toe Width = 2.00 It Heel Width • 1.00 Total Footing Width = 3.00 Footing Thickness = 12.00 in Key Width = 8.00 in Key Depth = 0.00 in Key Distance from Toe = 2.25 it ft = 3,000 psi Fy = 60,000 psi Footing Concrete Density = 150.00 pcf Mm. As % = 0.0018 Cover @ Top 2.00 @ Btm 3.00 in [Design Summary I Wall Stability Ratios Overturning 1.58 OK Sliding = 1.56 OK Total Bearing Load = 1,503 lbs ...resultant ecc. - 9.76 in [Stem Construction Top Stem Stem OK Design Height Above Ft9 it = 0.00 Load Factors Building Code CBC 2010,ACI Dead Load 1.200 Live Load 1.600 Earth, H 1.600 Wind, W 1.600 Seismic, E 1.000 Use menu item Settings> Printing & Title Block Title : 54 Page: 4 / 13 to set these five lines of information Job # : Navarra Dsgnr: AJH Date: 27 MAR 2014 for your program. Descr: IS Wall in File: c:\users\tony hranek\dropbox\res_struct\firelight_foIder RetainPro 10 (c) 1987.2012, Build 10.13.8.31 Ucense: KW.05056810 Cantilevered Retaining Wall Design ode: CBC 2010,ACI 318-08,ACI 530-08 License To: RES STRUCT P.E. I Summary of Overturnina & Resistina Forces & Moments Force Distance Moment Item lbs It ft-# Heel Active Pressure = 701.2 2.11 1,479.5 Surcharge over Heel Surcharge Over Toe Adjacent Footing Load = 87.6 2.40 210.5 Added Lateral Load = Load @ Stem Above Soil Seismic Earth Load = 23.6 3.80 89.7 Total 812.4 O.T.M. 1,779.7 Resisting/Overturning Ratio = 1.58 Vert. component of active S.P. used for Overturning Resistance. If seismic included the mm. OTM and sliding ratios may be 1.1 per iBC 09, 1807.2.3. RESISTiNG..... Force Distance Moment lbs it ft-# Soil Over Heel - 3.00 Sloped Soil Over Heel = Surcharge Over Heel = Adjacent Footing Load - Axial Dead Load on Stem = * Axial Live Load on Stem = Soil Over Toe = Surcharge Over Toe 330.0 1.00 330.0 Stem Weight(s) - 722.9 2.50 1,807.3 Earth @ Stem Transitions = Footing Weight = 450.0 1.50 675.0 Key Weight = 2.58 Total 1,502.9 lbs R.M.= 2,812.3 Axial live load NOT Included in total displayed or used for overturning resistance, but is Included for soil pressure calculation. DESIGNER NOTES: Criteria Retained Height = 9.33 It Wall height above soil = 0.50 it Slope Behind Wall = 0.00:1 Height of Soil over Toe = 0.00 in Water height over heel 0.0 it LSoil Data Allow Soil Beating = 2,500.0 psf Equivalent Fluid Pressure Method Heel Active Pressure = 35.0 psf/ft Passive Pressure = 250.0 psi/ft Soil Density, Heel 115.00 pcf Soil Density, Toe = 0.00 pcf FootingliSoil Friction = 0.350 Soil height to ignore for passive pressure = 0.00 In Use menu item Settings > Printing & Title Block Title : 94 Page: 6 / 13 to set these five lines of information Job # : Navarra Dsgnr: AJH Date: 27 MAR 2014 for your program. Descr: License: KW-06056810 Cantilevered Retaining Wall Design ode: CBC 2010,ACi 318-08,ACl 530-08 License To: RES STRUCT P.E. Surcharge Loads Surcharge Over Heel = 0.0 psf Used To Resist Sliding & Overturning Surcharge Over Toe = 165.0 psf Used for Sliding & Overturning Axial Load Applied to Stem Axial Dead Load = 0.0 lbs Axial Live Load 0.0 lbs Axial Load Eccentricity = 0.0 in Earth Pressure Seismic Load 111 Multiplier Used 1.000 (Multiplier used on soil density) Lateral Load Applied to Stem 1 Lateral Load = 0.0#/ft ...Helght to Top = 0.00 it ...Height to Bottom = 0.00 it The above lateral load has been Increased 1.00 by a factor of I Adjacent Footing Load Adjacent Footing Load = 500.0 lbs Footing Width = 1.00 it Eccentricity 0.00 in Wall to Fig CL Dist = 2.00 it Footing Type Square Footing Base Above/Below Soil at Back of Wall Poisson's Ratio = 0.300 Wind on Exposed Stem = 0.0 psf Uniform Seismic Force 9.330 Total Seismic Force = 101.044 Use menu item Settings.-. Printing & Title Block Title : 9'4 Page: -7-L 13 to set these five lines of Information Job U : Navarra Dsgnr: AJH Date: 27 MAR 2014 for your program. Descr: License :KW-06056810 Cantilevered Retaining Wall Design ode: CBC 2010,ACI 318-08,ACI 530-08 License To: RES STRUC1' P.E. Soil Pressure @ Toe 1,924 psf OK Soil Pressure @ Heel = 0 psf OK Allowable 2.500 psf Soil Pressure Less Than Allowable ACI Factored @ Too = 2,309 psf ACI Factored @ Heel - 0 psf Footing Shear @ Toe = 9.5 psi OK Footing Shear @ Heel = 0.0 psi OK Allowable 82.2 psi Sliding Calca (Vertical Component Used) Lateral Sliding Force = 2,146.8 lbs less 100% Passive Force = 2,189.1 lbs less 100% Friction Force = - 1,185.2 lbs Added Force Req'd 0.0 lbs OK ....for 1.5:1 Stability = 0.0 lbs OK Load Factors Building Code CBC 2010,ACI Dead Load 1.200 Live Load 1.600 Earth,H 1.600 Wlnd,W 1.600 Seismic, E 1.000 [Footing Dimensions & Strengths Toe Width = 4.50 ft Heel Width - 1.00 Total Footing Width = 5.50 Footing Thickness 18.00 in Key Width - 12.00 in Key Depth 15.00 In Key Distance from Too = 3.50 it ic = 3,000 psi Fy 60,000 psi Footing Concrete Density 150.00 pcI Mm. As % = 0.0018 Cover @ Top 2.00 @ Btm= 3.00 in Stem Construction • Top Stem Stem OK Design Height Above Ftg it = 0.00 Wall Material Above Ht = Masonry Thickness = 12.00 Rebar Size = U 5 Rebar Spacing 8.00 Rebar Placed at = Edge Design Data fb/FB + fa/Fa = 0.810 Total Force @ Section lbs = 1,605.0 Moment .... Actual ft-#= 5,063.9 Moment.....Allowable = 6,255.4 Shear.....Actual psi= 14.9 Shear.....Allowable psi = 44.7 Wall Weight = 124.0 Rebar Depth 'd' In= 9.00 LAP SPLICE IF ABOVE In 45.00 LAP SPLICE IF BELOW in- HOOK EMBED INTO FTG in = 6.00 Hook embedment reduced by strass ratio Masonry Data -- I'm psi = 2,000 Fs psi- 20,000 Solid Grouting = Yes Use Half Stresses n/a Modular Ratio 'n' = 16.11 Short Term Factor = 1.000 Equiv. Solid Thick. in= 11.60 Masonry Block Type = Medium Weight Masonry Design Method ASD Concrete Data f'c psi= Fy psi- LFooting Design Results Toe Heel Factored Pressure 2,309 0 psf Mu': Upward = 70 0 ft-U Mu': Downward 17 0 It-U Mu: Design 54 Oft-U Actual 1-Way Shear = 9.54 0.00 psi Allow 1-Way Shear = 82.16 0.00 psi Too Reinforcing = #5 @ 16.00 in Heel Reinforcing None Spec'd Key Reinforcing = #4@8.00!n Other Acceptable Sizes & Spacings Toe: Not req'd, Mu cS • Fr Heel: Not req'd, Mu < S • Fr Key: #4@ 9.50 In, #5@ 14.50 In, #6@ 20.50 In, #7@ 28.00 in, [Design Summary I Wall Stability Ratios Overturning 1.50 OK Sliding 1.57 OK Total Bearing Load = 3,386 lbs ...resultant ecc. = 18.92 in Use menu Item Settings> Printing & Title Block Title : 9'4 Page: 8 / 13 to set these five lines of Information Job # : Navarra Dsgnr: AJH Date: 27 MAR 2014 for your program. Descr: Is Wall in File: c:\users\tony hranek\dropbox\res_struct\flrelight_folder RetainPro 10 (C) 1987-2012, Build 10.13.8.31 Ucense: KW-060810 Cantilevered Retaining Wall Design ode: CBC 201 0,ACI 318-08,ACI 530-08 License To: RES STRUCT P.E. [Summary of Overturning & Resisting Forces & Moments OVERTURNING...RESISTING..... Force Distance Moment Force Distance Moment Item lbs ft ft-# lbs it ft-# Heel Active Pressure = 2,052.6 3.61 7,409.7 Surcharge over Heel = Surcharge Over Toe = Adjacent Footing Load = 23.5 3.21 75.4 Added Lateral Load Load @ Stem Above Soil = Seismic Earth Load = 70.7 6.50 459.6 Total 2,146.8 O.T.M. 7,944.8 Resisting/Overturning Ratio 1.50 Vert. component of active S.P. used for Overturning Resistance. If seismic Included the mm. OTM and sliding ratios may be 1.1 per IBC '09, 1807.2.3. Soil Over Heel 5.50 Sloped Soil Over Heel = Surcharge Over Heel = Adjacent Footing Load = Axial Dead Load on Stem = Axial Live Load on Stem = Soil Over Toe = Surcharge Over Toe = 742.5 2.25 1,670.6 Stem Weight(s) 1,218.9 5.00 6,094.6 Earth @ Stem Transitions - Footing Weight 1,237.5 2.75 3,403.1 Key Weight 187.5 4.00 750.0 Total = 3,386.4 lbs R.M.= 11,918.4 Axial live load NOT Included in total displayed or used for overturning resistance, but is included for soil pressure calculation. DESIGNER NOTES: [Criteria Retained Height 13.33 ft Wall height above soil = 0.50 it Slope Behind Wall = 0.00:1 Height of Soil over Toe - 0.00 in Water height over heel - 0.0 it [Soil Data Allow Soil Bearing = 2,500.0 psf Equivalent Fluid Pressure Method Heel Active Pressure 35.0 psf/ft Passive Pressure 250.0 psf/ft Soil Density, Heel 115.00 pcf Soil Density, Toe = 0.00 pcf FootingiSoll Friction 0.350 Soil height to ignore for passive pressure 0.00 in Use menu Item Settings • Printing & Title Block Title : 134 Page: 10 / 13 to set these five lines of Information Job # : Navarra Dsgnr: AJH Date: 27 MAR 2014 for your program. Descr: IS Wallin File: c:\users\tony hranekdropbo,Ares_structfireIightjolder RetainPro 10 (c) 1987-2012, Build 10.13.8.31 License: KW-O60s81O Cantilevered Retaining Wall Design ode: CBC 2010,ACI 318-08,ACl 530-08 License To: RES STRUCT P.E. I Surcharge Loads Surcharge Over Heel 0.0 psf Used To Resist Sliding & Overturning Surcharge Over Toe - 165.0 psf Used for Sliding & Overturning [Axial Load Applied to Stem Axial Dead Load 0.0 lb s Axial Uve Load 0.0 lbs Axial Load Eccentricity 0.0 in LEarth Pressure Seismic Load Multiplier Used 1.000 (Multiplier used on soil density) Lateral Load Applied to Stem Lateral Load = 0.0 #Ift ...Helght to Top = 0.00 it ...Height to Bottom 0.00 it The above lateral load has been increased 1.00 by a factor of Wind on Exposed Stem - 0.0 psf Uniform Seismic Force = 13.330 Total Seismic Force = 204.349 [Adjacent Footing Load Adjacent Footing Load = 500.0 lbs Footing Width = 1.00 it Eccentricity = 0.00 in Wall to Ftg CL Dist 2.00 It Footing Type Una Load Base Above/Below Soil - -50 ft - at Back of Wall Poisson's Ratio 0.300 [Design Summary I Wall Stability Ratios Overturning = 1.54 OK Sliding = 1.52 OK Total Bearing Load = 6,379 lbs ...resultant ecc. = 28.01 in Soil Pressure @ Toe = 2,173 psf OK Soil Pressure @ Heel 0 psi OK Allowable = 2,500 psi Soil Pressure Less Than Allowable ACI Factored @ Toe 2,607 psi ACI Factored @ Heel - 0 psi Footing Shear@ Toe = 12.7 psi OK Footing Shear @ Heel* = 0.0 psi OK Allowable = 82.2 psi Sliding Caics (Vertical Component Used) Lateral Sliding Force = 4,359.1 lbs less 100% Passive Force 4,402.7 lbs less 100% Friction Force = - 2,232.6 lbs Added Force Req'd 0.0 lbs OK ....for 1.5:1 Stability = 0.0 lbs OK Use menu Item Setllngs> Printing & Title Block Title 134 Page: 11 / 13 to set these live lines of Information Job # : Navarra Dsgnr: AJH Date: 27 MAR 2014 for your program. Descr: Is Wail In File: c:\users\tony hranekdropbox\resstruct\firelight_folder RetainPro 10 (C) 1987-2012, Build 10.13.8.31 License: KW-06056810 Cantilevered Retaining Wall Design ode: CBC 2010,ACl 318-08,ACI 530-08 License To: RES STRUCT P.E. Load Factors Building Code CBC 2010,ACI Dead Load 1.200 Live Load 1.600 Earth, H 1.600 Wind,W 1.600 Seismic, E 1.000 [Footing Dimensions & Strengths Toe Width = 7.25 it Heel Width = 1.33 Total Footing Width = 8.58 Footing Thickness = 24.00 In Key Width = 12.00 in Key Depth = 30.00 in Key Distance from Toe = 6.25 it fc 3,000 psi Fy = 60,000 psi Footing Concrete Density = 150.00 pcI Mm. As % = 0.0018 Cover @ Top 2.00 @ Btm 3.00 in Stem Construction Top Stem 2nd Stem 01< Stem OK Design Height Above Ftg it - 4.00 0.00 Wall Material Above 'Hr = Masonry Masonry Thickness = 12.00 16.00 Rebar Size = # 5 # 7 Rebar Spacing 8.00 8.00 Rebar Placed at Edge Edge Design Data fb/FB + fa/Fa = 0.849 0.885 Total Force @ Section lbs 1,667.1 3,335.2 Moment .... Actual ft-#= 5,311.6 15,192.8 Moment ..... Allowable ft-#= 6,255.4 17,161.5 Shear.....Actual psi = 15.4 21.4 Shear.....Allowable psi= 44.7 44.7 Wall Weight psf= 124.0 164.0 Rebar Depth 'd' In= 9.00 13.00 LAP SPLICE IF ABOVE In = 45.00 63.00 LAP SPLICE IF BELOW in= 45.00 HOOK EMBED INTO FTG in = 7.89 Hook embedment reduced by stress ratio Masonry Data f'm psi = 2,000 2,000 Fs psi - 20,000 20,000 Solid Grouting = Yes Yes Use Hail Stresses = nla No Modular Ratio'n' 16.11 16.11 - Short Term Factor = 1.000 1.000 Equiv. Solid Thick. in 11.60 15.60 Masonry Block Type = Medium Weight Masonry Design Method = ASD Concrete Data f'c psi = Fy psi= Footing Design Results Toe Heel Factored Pressure 2.607 0 psI Mu': Upward = 142 0 ft-# Mu': Downward = 35 0 ft-# Mu: Design = 107 0 ft-# Actual 1-Way Shear = 12.73 0.00 psi Allow 1-Way Shear = 82.16 0.00 psi Toe Reinforcing = #5 @ 16.00 in Heel Reinforcing = None Spec'd Key Reinforcing = #4 @ 8.00 in Other Acceptable Sizes & Spacings Toe: Not req'd, Mu < S • Fr Heel: Not req'd, Mu .c S • Fr Key: #4@ 9.50 in, #5@ 14.50 In, #6@ 20.50 in, #7@ 28.00 in, Use menu item Settings> Printing & Title Block Title : 174 Page: 12 / 13 to set these five lines of information Job # : Navarra Dsgnr: AJH Date: 27 MAR 2014 for your program. Descr: is Wail in File: c:\users\tony hranek\dropbox\res_struct\firelightjolder RetainPro 10 (C) 1987-2012, Build 10.13.8.31 Ucense KW-06056810 Cantilevered Retaining Wail Design ode: CBC 2010,ACi 31 8-08,ACi 530-08 License To: RES STRUCT P.E. Force Distance Moment Item lbs ft ft-# Heal Active Pressure = 4,112.7 5.11 21,015.7 Surcharge over Heel = Surcharge Over Toe = Adjacent Footing Load = 103.4 7.27 751.9 Added lateral Load = Load @ Stem Above Soil = Seismic Earth Load 143.0 9.20 1,315.7 Total 4,359.1 O.T.M. 23,083.3 Resisting/Overturning Ratio 1.54 Vert. component of active S.P. used for Overturning Resistance. If seismic included the mm. OTM and sliding ratios maybe 1.1 per IBC '09, 1807.2.3. DESIGNER NOTES: Force Distance Moment lbs It ft-# Soil Over Heel = Sloped Soil Over Heel Surcharge Over Heel = Adjacent Footing Load = Axial Dead Load on Stem = * Axial Live Load on Stem = Soil Over Toe = Surcharge Over Toe = 1,196.3 3.63 4,336.4 Stem Weight(s) = 1,874.9 7.81 14,640.0 Earth @ Stem Transilions. 357.7 8.42 3,010.2 Footing Weight 2,575.0 4.29 11,051.0 Key Weight = 375.0 6.75 2,531.3 Total = 6,378.8 lbs R.M.= 35,568.9 Axial live load NOT Included in total displayed or used for resistance, but Is included for soil pressure calculation. overturning Elev (ft) 101.00 100.75 100.50 100.25 100.00 99.75 Section 0 1 J Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. 1-61N Circular Diameter (ft) = 0.50 Invert Elev (ft) = 100.00 Slope (%) = 10.36 N-Value = 0.013 Calculations Compute by: Known Depth Known Depth (ft) = 0.45 Thursday, Mar 27 2014 Highlighted Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Yc (ft) Top Width (ft) EGL (ft) = 0.45 = 1.924 = 0.19 = 10.33 = 1.25 = 0.50 = 0.30 = 2.11 Request for Information The Whiting-Turner Contracting Company Tole I7Rn 1flfl1 ... i1ft% 1&I4 1 o: Smith Consulting Architects Date: 10/9/13 RFI #: 067 13280 Evening Creek Drive South, Suite 125 San Diego, CA 92128 La Costa Town Square W-T Job Number: 14260 The Corner of Rancho Santa Fe Road and La Costa Ave. Carlsbad, CA 92009 TTN: Mark Langan Tel: (760) 632-5003 Fax: (760) 632-5231 From: Conor Crowe, WI Project Engineer Area Involved: Bioretentlon Basins Discipline: Civil Date Required: 10/16/2013 Per conversation with Tim CartoP & Garrett Fountain (SCST) we will be eliminating the HOPE liner in some basins, reducing the long leg in the outside certain basins, and adding sand bedding to basins. Please update the plans and bioretention cut sheets to show these hanges. hanks onor Signature: Cc: Company Name Contact Name Copies Notes Date Answered: Signature: uwIu