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Home My WebLink About19950796 Ver 2_Stormwater Info_20111221� �� "'� 1 t fW) Ci MA AG MFKT EMG1V£ taG t T L A5#NT � � t i'I� StZ)�1�:�1� LLl' 1 t tONt 7Q4 7b3 7G24 t3fZAClc PESCZUAR�L�C.C)M 41V4`�h f ESQU1hELl(.UM T tta,l To Alan Johnson NCDENR From Brad Johnson PE — PEZ Engineermg Date 12/20/2011 Re Stonebridge Stormwater Management Plan Alan � 5—��l 9 l� U a. 0 ��' a � � Q�� D OENR 2011 �NDS,q�ypSTpR� �li!' RBRqW�� Please find enclosed the following items regardmg a stormwater management submittal for the Stonebndge Subdiwsion 1 Notanzed ongmal permit applicahon 2 Ass�stant Secretarys Certrficate 3 Property Deed 4 Notanzed Pond 0&M Agreements (onginal) 6 Sealed Stormwater Management Plan Report calculations exhibits and copies of all of the above 7 2 sets of Sealed Stormwater Management Construction Plans 8 1 set of sealed Erosion Control plans for Parcel 5 9 1 set of sealed Erosion Control plans for Parcel 6 10 1 set of approved wetland maps If any of the above are absent from this submdtal please notrfy my immediately at 704 916 9732 of brad@pesquared com Brad Johnson PE CC Annette M Lucas PE ES d DB f llg D g L � g gJ m J hC I � 1 1 � , ' � � � , , , ' ' � ' � , � Y �� -- ,�' �� * PFI�►jE�T �C�A�E�MtEt�9T E1��'rl I�E � R,.[W�[i � i'�f l'i'6.EI�6 E�la' �5 -�`1 q l� l� � sro�v�„��. �rr�c-�� Stoa�b�.dge �uul�divssa�on �'�rc�fl �7'ni�n C�unt��, l�'a�th �l�na Q ��Q ' �� pEC 2 D � �011 �,,•- ��ENR WATERQ�A�lTY "'b r�VOSAND STpRhryVq�R � GK �pa�d �r ��e of ��, �1 A. ��p � �harl�es 5�t , �;�� l�r ��a�� i�U� �nepa�cc�d �� PE �q�a�e� Er�n�► �' �1LLfNll��p 111� ATC F,u�tt F-�.8� �m�i� a�, �ii ' .--- �� , _ ____ � � ' ._ . :'�� . > � �� c-i` n�� n��+-� �«�� Et�d"��TL�lwIE h��' � � � � � C��c��tb�r 15 2011 ��n Johnson �r �nu�rr�onm�n4a1 S�1�f(�t �U'�ir�r �Q�a9�t� ��v��i� o� �r��o�ra�rt�� e�G� �C�EN� fi1 t� � C��r �� fMA�a�r�v�d6� I�C 2�� 16 � �"i��A�INAg�I 1�P1�G€A��NT �ILAt� I�p�allc�tlon 1�or A��r+�va�i af �te S�Eorr�r�Der M��rn�errt Pe�nit �ane'�nn�g� �ub+�i+,��ton l�nE�n �a�nty, �I�rtM ��r�lin� D�ar �Ir ,�r�sc�n Sa�brr��ed hef�ri�h fs fta� e��a�r �lan��eenent �a� far �n�br�d�� Sa�b�v�s�on '�his r�pard wv� c�arnpi�be� end sub�nii��cil a� re�uir�d t�y �t� N�r� ��oli�� I�p$..�m�� a�f En��r�aa� �t°�d P�#�r�l ��r�� i�la� o� �o�+�a'�rn�'a�r'�t�01��1th TF�� mnrr►�r Man��rn�nt ��n i� b�irt+� s��d �s pa.ft r�q�cir+�an�n� c� � cao��ltl��l 407l�4 perrr�t ap��ov� �V11� 95�7� V2 w� app��t� �� ppa�una� �o I� v� s�r�+cc� t� you oa� t�als pmoj�c,�. If w� c�rt b� ofi f�u��r �as�ar�c� o�r if �� hav� a�rr� q�stit�� r�gar��r�g ttt�f r�{�ort vr �pp�l4��r�, pV� ��t o�r c�c� Sdr��r�y � �� rad J�o�an�oaa � � � I�� '� 0316?5 �a�gi��r� r�g I�ar��t ' � �I � � � ` � � � � lJ �' r � � CJ � �� ! � Stonebridge Subdivision Umon CounTy North Carol�na For Bank of America N.A December 15 2oii EXECUTIVE SUMMARY PE2 Engineering has prepared this Stormwater Management Plan for Stonebridge Subdivision Stonebridge is a master planned development with 10 separate parcels at various stages of development Analysis of the relevant watersheds has determined that only watershed basins 3(parcel 5) and 4(parcel 6) require post construction structural stormwater BMPs This report along with the plans describe paramaters of design and construction for a design to convert the proposed dry detention area in parcel 5 to a wet detention basin as well as a plan to retrofit the existing pond in parcel 6 to reflect the design recommendations for post construction structural I BMPs described in the NCDENR Stormwater BMP Manual Engineenng LLP Page u Stonebndge Subdivision Union County North Carolina TABLE OF CONTENTS EXECUTIVE SUMMARY 1 0 EXISTING PRO)ECT PARAMETERS 1 1 S�te Locat►on 1 1 Overall Dra�nage 12 Drarnage Patterns 13 Extstmg Srte So►Is 2 0 Stormwater BMP Selecdon and Routang Calculahons 21 BMP Select�on 2 2 Calculat�on Methodology 2 3 Calculation Results 2 4 Pro�ect Phasmg 3 0 Conclusion TABLE OF TABLES F�gure 1 Vicimty Map Table 1 Overall Imperv�ous Area Table 2 Area 3(Parcel5) Drainage Area Summary Table 3 Area 4(Parcel 5) Dra�nage Area Summary Table 4 Pond 1 Drainage Areas Table 5 Pond 2 Dra�nage Areas Table 6 Divers�on Swale Dra�nage Areas Table 8 Parcel 5 Lot Development Phas�ng Table 9 Parcel 6 Lot Development Phas�ng For Bank of Amenca N.A December i5 2oii m 1 1 2 3 4 4 4 6 7 7 E:3 i 2 3 4 5 5 6 8 8 Engmeenng LLP Page m � � � � � � � � � � � � � � � � � � Li Stonebndge Subdrvision Union County North Carolina For Bank of Amer►ca N.A December i5 2oii 1 0 EXISTING PROJECT PARAMETERS 1 1 Site Location Stonebridge subdivision is a master-planned development consisting of 10 separate parcels (see exhibit sheet 2) that have been phased as individually permitted pro�ects for the purposes of erosion control water sewer and preliminary plat submissions These parcels are at various stages of design and development with parcels 4 6 and 8 being mostly complete and parcels 1 2 3 5 7 9 and 10 yet to break ground Many lots have been sold in parcels 4 6 and 8 the remainder 347 6099 acres still under control by the developer (See included exhibit Remammg Property Map) Figure 1 Vicin�ty Map PE� Engmeer►ng LLP 1 Stonebr�dge Subdivision For Bank ofAmerica N.A Union County North Carolina December i5 2oi1 1 1 Overall Drainage The overall pro�ect area was divided into seven overall drainage areas labeled I through VII These areas encompassed a great deal of offsite drainage areas since the offsite areas are not included in this tables calculation seven sub-areas were created (see exhibit sheet 5) These sub areas correspond to the remaining property areas for parcels 1 2 3 5 7 9 and 10 for parcels 4 6 and 8 the original pro�ect boundaries have been included as many of lots in these properties have been sold off Areas 1 2 and 5-7 have sufficient buildable impervious area to complete the development and remain under 23 5% so are not included in any further BMP analysis Areas 3 and 4 which correspond to parcels 5 and 6 respectively have been further studied and will be the focus of the remainder of this report Table 1 Overall Impervious Area AREA NUM 1 2 3 4 5 6 7 AREA (ACRES) 62 34 127 93 27 76 19 66 3215 86 64 34 54 391 02 ROAD AREA (SF) 214 809 466 417 81 547 96 636 78 930 169 46 83 585 1 191 385 S►DEWALK/ TRAIL (S� 39 892 00 81 240 00 15 692 00 15 387 00 15 336 00 100 714 00 28 356 00 296 617 00 # OF LOTS 82 186 52 60 42 67 65 554 Tota! Imperv►ous Area Avadable (<23 5/0) (SF) 638150 1 309 568 284168 201 252 329107 886 899 353 572 4 002 715 Rema►n�ng Imperv►ous for Lot Development (SF) 373100 753 300 241436 206 520 210 000 335 000 240 500 2 359 856 Average Remain►ng Imperv�ous per Lot (S� 4 550 4 050 4 643 3 442 5 000 5 000 3 700 Impervious Area Percentage PE� Engmeenng LLP 2 2312% 23 35% 28 01 % 37 20% 21 73% 16 04% 23 42% 22 59% 1 � ' �� J I � � � � � � Stonebridge Subdrv�s�on Umon County North Carolma 1 2 Drainage Patterns For Bank of Amenca N A December �5 2oii Both Parcels 5 and 6 are bounded by an existing goif course Parcel 6 has been cleared and the land has been developed Parcel 5 is partially wooded undeveloped land The land in parcel 5 is gently sloping with the ma�ority of the land drains to the northwest corner of the site (Area 3 Sub A) to a drainage feature there Additionally 3 drainage basins (Area 3 Sub B Area 3 Sub C and Area 3 Sub D) around the perimeter of the site sheet drain on to the ad�acent golf course Table 2 Area 3(Parcel 5) Dramage Area Summary AREA 3 (PARCEL 5) Impervio Imperviou Imperv�ous ROAD SIDEWAL # OF us Area s Area on Area _Sub Area AREA AREA K/TRAIL LOTS per Lot Lots Percentage (ACRES) (SF) (SF) (SF) (SF) AREA 3 OFF A 2 624 0 0 0 0 0 0 00/ AREA 3 OFF B 2 054 0 627 0 0 0 0 70/ AREA 3 OFF C 1 251 2 871 696 0 0 0 6 54/ AREA 3 SUB A 18 192 70 740 12 445 34 4 643 157 862 30 42� AREA 3 SUB B 3 689 0 0 8 4 643 37 144 23 11/ AREA 3 SUB C 3 141 7 937 1 924 5 4 500 22 500 23 65/ AREA 3 SUB D 2 736 0 0 5 4 643 23 215 19 48/ 33 688 81 547 00 15 692 00 52 18 429 240 721 23 03/ Three Offsite basins drain onto the site from the north and east Offsite drainage areas from the ad�acent golf course Area 3 Off A and Area 3 Off 6 eventually drain to the northwest corner of the site and are picked up by proposed pond 1 Drainage area Area 3 Off B flows across the east side of Parce! 5 and is eventually picked up by a diversion swale along the northern boundary of Parcel 6 Parcel 6 is a gentiy sloping site that drains to the southwest corner of the site Offsite drainage areas from the ad�acent golf course (Area 4 Off A and Area 4 Off B) also sheet flow onto the site Drainage area Area 4- Off A is intercepted by the existing PE2 Engmeenng LLP 3 Stonebr�dge Subdrvision Umon County North Carohna For Bank of Amenca NA December 15 2oii pond at the southwest corner of the site Drainage area Area 4- Off B �oined by Area 3- Off B and Area 3- Sub C are intercepted by a diversion swale that flows south west along the northern boundary of the site The division swale diverts around the existing pond into existing wetlands at the southwest corner of the site Table 3 Area 4(Parcel 5) Drainage Area Summary Y .� � ' , � � AREA 4 (PARCEL 6) # OF Imperv�ous Imperv�ou Imperv�ous � ROAD SIDEWALK/ LOT Area per s Area on Area Sub Area AREA AREA TRAIL S Lot Lots Percentage (ACRES) (SF) (SF) (SF) (SF) AREA 4 OFF A 8 927 2 871 5 338 0 0 0 2 ii/ � AREA 4 OFF B 1 656 0 627 0 0 0 0 87/ AREA 4 SU8 A 16 329 93 765 9 422 54 3 442 185 868 40 64/ AREA 4 SUB B 2 305 0 0 6 3 442 20 652 20 57/ � 29 217 96 636 15 387 60 6 884 206 520 25 03/ 1 3 Existing S�te Soils According to USDA soil maps the predominate soils on the site are CmB GsB MhA Cid channery silt loam 1-5% slopes Goldston Baldin Complex 2 8% slopes Misenheimer-Cid complex 0 3% slopes All of which belong to hydrologic soil group C 2 0 Stormwater BMP Selection and Routing Calculations 2 1 BMP Selection Parcel 5 is currently undeveloped but construction plans have all ready been developed under standards that pre date the implementation of the 2008 Post- Construction BMP requirements A dry detention area was designed to meet the PE� Engmeenng LLP 4 � � � M � Stonebndge Subdiv�sion For Bank of Amenca N.A Union County North Carolina December 15 2011 � requirement of the County s smart growth ordinance that requrres that the post- development discharge rates match the pre-development discharge rates for the 2 � and 10 year storms respectively The design approach for this parcel is to match the existing design and location of the � dry detention area but re design it as a wet detention basin and implement the design recommendations of the NCDENR Stormwater BMP Manual Table 4 outlines the � � � � � � �� FJ u � �� LJ � �i, � drainage areas flowing into Pond 1 in Parcel 5 Table 4 Pond 1 Dramage Areas DRAIN TO POND 1(PARCEL 5) Imperviou Imperv�ous Impervious ROAD SIDEWAL # OF s Area per Area on Area Sub Area AREA AREA K/TRAIL LOTS Lot Lots Percentage AREA 3 OFF A 2 624 0 0 0 0 0 0 00/ AREA 3 OFF C 1 251 2 871 696 0 0 0 6 54� AREA 3 SUB A 18 192 70 740 12 445 34 4 643 157 862 30 42/ 22 068 73 611 13 141 34 4 643 157 862 25 45/ Parcel 6 has been mostly developed however only 8 lots have been sold and the remainder are still under control of the developer/owner There is an existing pond however it will need to be retrofitted to meet the new standards of the NCDENR Stormwater BMP Manual Table 5 outlines the drainage areas flowing into Pond 2 in Parcel 6 Table 5 Pond 2 Dramage Areas DRAIN TO POND 2(PARCEL 6) # OF Imperv�ous Imperv�ou Impervious ROAD SIDEWALK LOT Area per s Area on Area Sub Area AREA AREA /TRAIL S Lot Lots Percentage AREA 4 OFF A 8 927 2 871 5 338 0 0 0 2 11/ AREA 4 SUB A 16 329 93 765 9 422 54 3 442 185 868 40 64/ 25 256 96 636 14 760 54 3 442 185 868 27 029' In Parcel 5 a small amount of the drainage areas along the property boundary flow back onto the golf course and are not captured by Pond 1 These areas do not need PE� Engrneermg LLP 5 Stonebridge Subdivision For Bank of Amenca N.A Union County North Carolina December i5 2oi1 a BMP since most of the area are the backsides of the lots with only a small percentage of the BUA and the total percentage of BUA is less than 24% The lots 178-180 and 221-223 will need to have the on lot BUA restricted to 2500 square feet less than the 4643 square foot restriction typical of the rest of parcel 5 A diversion swale runs along the northern boundary of Parcel 6 and picks drainage areas from the offsite golf course and the eastern portion of Parcel 5 No further BMP is required for these areas as the combined BUA is less than 20% (see table 6)and further treatment will be provided by the long vegetated swale Table 6 Diversion Swale Dramage Areas PARCEL 6 DIYERSION SWALE SIDEWA Imperv�o Imperv�ous Impervious ROAD LK/TRAI # OF us Area Area on Area Sub Area AREA AREA L LOTS per Lot Lots Percentage AREA 3 OFF B 1 251 2 871 696 0 0 0 6 54/ AREA 3 SUB C 3 141 7 937 1 924 5 4 500 22 S00 23 65/ AREA 4 SUB B 2 305 0 0 6 3 442 20 652 20 57/ 6 698 10 808 2 620 11 7 942 43 152 19 39 / 2 2 Calculation Methodology The existing and proposed drainages as well as the pond routing was performed with Autodesk s Storm and Sanitary Analysis (SSA) software SSA is a implementation of industry standard EPA SWMM The United States Environmental Protection Agency (EPA) Storm Water Management Model(SWMM) is a dynamic rainfall runoff subsurface runoff simulation modei used for single event to long term (continuous) simulation of the surface/subsurface hydrology quantity and quality from pnmanly urban/suburban areas The hydrology component of SWMM operates on a collection of subcatchment areas and now LID/BMP areas that receive precipitation and generate runoff and pollutant loads after simulation evaporation and infiltration losses from the drainage basin The routing or hydraulics portion of SWMM transports this water and possible associated water quality constituents through a system of ciosed pipes open channels storage/treatment devices pumps onfices weirs and regulators The SSA software was used to analyses the site hydrologically for the 1 inch 1 year PE� Engmeenng LLP 6 � > � � � � ' � � Stonebridge Subdivision For Bank of America N.A Umon County North Carolina December i5 201� 6-hour 2 year 6 hour and 10 year 6 hour storms (Chariotte mefhod of rainfall distribution) The TR 55 method was used to determine times of concentration and TR-20 method was used to calculate the runoff Routing used the standard SWMM models included in the software 2 3 Calculation Results In addition to meeting the water quality of standards for NCDENR BMP manual the routing calculations also show that the ponds control the water quantity to meet the pre-development discharge rates for the 2 and 10 year storms as is required by the county s smart growth ordinance Table 7 Pre-Development and Post Development Discharge Rates PRE POST � DEVELOPMENT DEVELOPMENT 2 YR 10 YR 2 YR 10 YR (CFS) (CFS) (CFS) (CFS) � OUTLET 1(PARCEL 5) 19 9$ 46 42 11 92 17 80 OUTLET 2(PARCEL 6) 16 63 37 93 16 22 33 71 ' i � � , _J � 2 4 Pro�ect Phasing The pond area in parcel 5 will need to used as a construction sediment basin while the site is being developed In order to ensure the site is relatively stable when the sediment basin is converted into a perm ant post construction stormwater control it is important that a smail percentage of lots be allowed to be developed Table 8 below outlines a the number of lots that could be developed in each sub-basin w�thout mcreas►ng the BUA percentage of each beyond 24% � PE� Engmeenng LLP r 7 Stonebridge Subdivision Union County North Carolina Table 8 Parcel 5 Lot Development Phasing For Bank of Amenca N.A December 15 2011 Impervious Imperv�ous ROAD SIDEWALK/ Imperv�ous Area on Area Sub Area AREA AREA TRAIL # OF LOTS Area per Lot Lots Percentage (ACRES) (SF) (SF) (SF) (SF) AREA 3 SUB A 18 192 70 740 12 445 10� 4 643 46 430 16 36/ AREA 3 SUB B 3 689 0 0 8 4 643 37 144 23 11/ AREA 3 Sl1B C 3 141 7 937 1 924 5 4 500 22 500 23 65� AREA 3 SUB D 2 736 0 0 5 4 643 23 215 19 48/ 78 676 27 759 00 14 369 00 28 18 429 129 289 18 39/ Similarly table 9 outlines the lots that can be developed in area 4(parcel 6) before the existing pond will need to be retrofitted to the new design Table 9 Parcel 6 Lot Development Phasing Impervious Imperv�ous Imperv�ous ROAD # OF Area per Area on Area Sub Area AREA AREA SIDEWALK/TRAIL LOTS Lot Lots Percentage (ACRES) (SF) (SF) (SF) (SF) AREA 4 SUB A 16 329 93 765 9 422 12 3 442 41 304 20 31/ AREA 4 SUB B 2 305 0 0 6 3 442 20 652 20 57/ 18 634 93 765 9 422 18 6 884 61 956 20 35 / 3 0 Conclusion The proposed redesign of pond 1 in parcel 5 and the proposed retrofit of pond 2 in parcel 6 along the supporting documents and plans will conform Stonebridge Subdivision with the conditions of the 401/404 permit and the state post construction standards PE� Engmeermg LLP 8 � � � � � ' � 1 i � � � � � � 1 � � i 1 � Stonebridge Subdivision Umon County North Carolina For Bank of Amenca N.A December i5 2oii APPENDIX A Vicin�ty Map USGS Topograph�c Map Remaining Property Map Approved Sketch Plan Overall Watershed Map Watershed Detail Map Wetland Impact Tables Overall Wetland Impacts Typical Lot Dimensions USDA Soils Map NOAA Rainfall Depth Application Assistant Secretary Certification Property Deed Pond O&M Agreements Copy of Check SSA Output Reports 11NCH Storm 1 YR Storm 2YR Storm 10YR Storm PE� Engmeermg LLP 1 , � � � �l l__l � � �, , , , � � � � � � N VICINITY MAP � SCALE 1 =2000 �� .`a'r x ° '` ° _ `�y � � � --,. 1 v bYe �.,,� -, �'` f ��^� �'� a � a"� �� t � � .,� ' pr' p� �„1��-�j '` � �, `�` � `�` �� , t s , C� `' � f�'� .�.. _��G`"`� � � 4� � �"..�' � F e,,� � � � `n 1 4 i f "` t � '•^E �,..'° �.'� � "� ! .1�' �c� �f�.� ti1t ¢ ' � � �``� � i ` '�� `"{ `— ,, �i \ � �.. �' r h� �� °^� 1� ��L..� �! ,,� �� , 's. �t� `''-�� -, � ` ' i � i � r � � ,� � . e.„� `e `�,.. )��,��"ti '^`- -- ,�a t � � t �� }p s.`�.. 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C N O- � T ul �p � Q O� lp O O C f6 �(n 'O Q m (p O'O p_ S] T� �(n N j CO � N � O�� C � � t � � o c O` Q � y�� V�l �A U�� O_N �� N p QN @ f0 l6 > � O U1 � —� « N� N� a E (��U H� intn � H c°� � o m a N N > N >. m c 3m N C U L m � p c = N a a n � y� � � O O � �' � � � o � � � 1O ` Y m m �n � � o m � y 0 � 0 O � � U � O 2' C � �L J �n a, Q a m m U U o z � U � O in _ = d � a LL d r o�' N❑❑❑❑❑❑❑ o o A A�� vi a � � r Pro�ect Description , F le Name PARCEL 5&6 PRE SPF Descr pt on E\C3D2011\Civil 3D Pro�eds\Stonebndge(2011)\Parcel 5\050 pond dwg E\C3D2011\C I 3D Pro�ects\Stonebr dge(2011)\Pa cel 5\050 WS EXISTING dwg � � , i � � � ' i � � , ' , ' � � Pro�ect Options Flow Units CFS Elevat on Type Elevat on Hydrology Method SCS TR 20 T me of Concentration (TOC) Method SCS TR 55 L nk Routing Method Kmematic Wave Enable Overflow Pond ng at Nodes YES Skip Steady State Malysis Time Penods NO Analysis Options Start Analysis On Dec 15 2011 00 00 00 End Analysis On Dec 19 2011 00 00 00 Start Report ng On Dec 15 2011 00 00 00 Antecedent Dry Days 0 days Runoff (Dry Weather) T me Step 0 01 00 00 days hh mm ss Runoff (Wet Weather) T me Step 0 00 OS 00 days hh mm ss Report ng T me Step 0 00 05 00 days hh mm ss Routing Time Step 30 seconds Number of Elements aty Ra n Gages 1 Subbasins 9 Nodes 4 Junct�ons 2 Outfalls 2 Flow Droers�ons 0 Inlets 0 Storage Nodes 0 L nks 2 Channels 0 P pes 2 Pumps 0 Onfces 0 Weirs 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details SN Ra n Gage Data Data Source Ra nfall Ra n State Co nry Retu n Ra nfall Ra fall ID Source ID Type Un ts Penod Depth D st bution (years) (nches) t T me Series 2YR6HR CumulaU e inches North Ca olina Un on 2 2 56 Charlotte NC 6 hr 2 yr Subbasm Summary SN Subbas Area We ghted Total Total Total Peak Time of ID Curve Rainfall Runoff Runoff Runoff Concentration Numbe Volume (ac) ( ) ( n) (ac ) (cfs) (days hh mm ss) 1{watershed)AREA 3 EX A 20 93 72 20 2 56 0 57 11 89 12 16 0 00 29 44 2{watershed} AREA 3 OFF A 2 62 74 00 2 56 0 64 1 68 2 23 0 00 18 58 3{watershedjAREA 3 OFF 8 2 05 74 17 2 56 0 65 1 34 7 81 0 00 18 09 4(watershed}AREA 3 OFF C 1 25 75 57 2 56 0 71 0 89 0 79 0 00 40 28 5{watershed}AREA 3 SUB B 3 69 73 10 2 56 0 60 2 23 2 38 0 00 28 18 6{watershed}AREA 3 SUB C 3 74 70 00 2 56 0 48 1 52 1 85 0 00 79 46 7{watershed) AREA 4 EX A 78 63 72 27 2 56 0 57 t0 64 9 60 0 00 37 01 8(watershed} AREA 4 OFF A 8 93 74 51 2 56 0 66 5 93 6 51 0 00 27 53 9{watershed)AREA 4 OFF B 1 66 74 21 2 56 0 65 1 08 1 13 0 00 30 03 � ' � , � � � �_� � I I �J ' LJ I� ' ' � ' , � Node Summary SN Element Eleme t Invert GroundlR m In t�al Su charge Ponded Peak Max HGL Max M n Time of Total Total T me ID Type Ele at on (Max) Wate Elevat on A ea Inflow Ele at on Surcharge freeboard Peak Flooded Flooded Elevat o Elevat�on Atta ned Depth Attained Flooding Volume AKa ned Occurrence (ft) (ft) (ft) (ft) (ft ) (cfs) (ft) (ft) (ft) (days hh mm) (ac m) (mm) 1 Jt Junct on 634 70 640 70 634 70 640 70 0 00 19 98 634 70 0 00 6 00 0 00 00 0 00 0 00 2 J2 Junct on 640 40 646 40 640 40 646 40 0 00 16 63 640 40 0 00 6 00 0 00 00 0 00 0 00 3 Out 1 OuHall 647 65 19 98 647 65 4 Out 2 Outfall 640 40 16 63 640 40 Lmk Summary r ' SN Element Element From To (Outlet) Leng�h Inlet Outlet Average Diameter or Manning s Peak Design Flow Peak Flowl Peak Flow Peak Flow Peak Flow To�l Time Reporfed ID Type (Inlel) Node Invert Inved Slope Height Roughness Flow Capauty Design Flow Veloc�ty Deplh Depihl Surcharged Condihon Node Eleva6on ElevaUon Ra6o Tokt Depfh � Ra6o (ft) �ft� (fl) (°/) (in) (ds) (ds) (Nsec) (ft) (min) i �nk-04 Pipe J2 Oul 2 65 76 640 40 0 00 973 8400 0 000 0 0130 i6 63 0 00 0 00 0 00 0 00 0 00 0 00 � 2 Unk 1 Pipe Jt Out 1 35 72 634 70 0 00 1776 8800 0 000 0 0130 19 98 0 00 0 00 0 00 0 00 0 00 0 00 � � � � � ' i 1 i � , � t , � ' , ' ' ' , ' �1 � � � ' i L JI ' ' � ' ' Subbasin Hydrology Subbasm {watershed} AREA 3 EX A Input Data A ea (ac) 20 93 We ghted Curve N mber 72 20 Ra n Gage ID RAIN Composite Curve Number Area Soil Curve SollSurface Desc pton (acres) Group Number Woods Good 9 40 C 70 00 Pastu e g assla d o range Good 71 52 C 74 00 Compos te Area 8 W e ghted CN 20 92 72 20 Time of Concentration TOC Method SCS TR 55 Sheet Flow EquaUon Tc (0 007 ((n Lf) 0 8)) /((P 0 5) (Sf 0 4)) W he e Tc T me of Concentrat on (h ) n Mann g s oughness Lf Flow Length (fl) P 2 yr 24 hr Rainfall ( nches) Sf Slope (Wft) Shallow Concentrated Flow Equahon V 16 1345 (Sf 0 5) (unpaved surface) V 20 3282 (Sf 0 5) (paved surface) V 15 0(Sf 0 5) (grassed waterway surface) V 10 0(Sf^0 5) (nearly bare 8 u t Iled surtace) V 9 0 (Sf^0 5) (cult vated straight rows surface) V 7 0 (Sf^0 5) (short grass pasture surface) V 5 � (Sf^0 5} (woodla d surface) V 2 5 (Sf 0 5) (fo est w/heavy I tter surface) Tc (Lf / V) / (3600 seclhr) W here Tc Time of Concentrat on (hr) Lf Flow Le gth (ft) V Veloc ty (ft/sec) Sf Slope (ft/ft) Chan el Flow Equat on V (1 49 (R (2/3)) (Sf 0 5)) / n R Aq/Wp T (Lf ! V) / (3600 c/h ) Whe e Tc T me of Conce t at o(hr) Lf FI w Le gth (ft) R Hydra I c Rad us (ft) Aq Flow A ea (ft ) Wp Wetted Pe meter (ft) V Veloc ry (fUsec) Sf Slope (fUft) Man gs oughness Sheet Flow Computat ons Ma g s Rough ess Flow Le gth (ft) Stope (� ) 2 yr 24 hr Ra nfall (in) Veloc ty (ft/sec) Computed Flow T me (m ) Shallow Conce trated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Veloc ry (ft/sec) Computed Flow Time (m n) Total TOC (m n) 29 74 Subbasm Runoff Results Total Ra nfall ( n) Total Runoff ( n) Peak Runoff (cfs) Weighted Curve Number T me of Concentrat on (days hh mm ss) Subarea Suba ea Suba ea A B C 4 0 00 0 00 100 0 00 0 00 3OS 000 000 350 000 000 0 10 0 00 0 00 17 34 0 00 0 00 S barea S barea Subarea A B C 1651 0 00 0 00 1 9 0 00 0 00 Unpa ed Unpaved Unpaved 2 22 0 00 0 00 1239 000 000 2 56 0 57 12 16 72 20 0 00 29 44 ' , ' ' ' , ' r � � � , ' , ' ' � , , Subbasm {watershed} AREA 3 EX A a a a 3 3 3 3 � 2 L C Z — 2 � c 2 m � 1 1 1 1 0 0 0 0 12 1 11 1 10 i 9 8 U 6 O C 7 � $ 4 3 2 1 0: Rainfall Intensity Greph 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) _____� � i �k _ � I _ , _ t � � i � � _�__ _ Runoff Hydrograph E t � iu �a zu z� 3u 35 40 45 50 55 60 65 70 75 80 85 90 95 T�me (hrs) Subbas�n {watershed} AREA 3 OFF A Input Data Area (ac) 2 62 We ghted Curve Numbe 74 00 Ra n Gage ID RAIN Composite Curve Number Area Sol Curve SoiVSurface Descnption (acres) Gro p Number 75 / grass co er Good 2 62 C 74 00 Composile Area & We ghted CN 2 62 74 00 Time of Concentration Sheet Flow Computations Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 h Ra r�fall () Veloc ty (ft/sec) Computed Flow T me (min) Shallow Co ce trated Flow Computations Flow Length (ft) Siope ( / ) Surface Type Veloc ry (fUsec) Computed Flow Time (min) Total TOC (m ) 18 97 Subbasin Runoff Results Total Ra nfall (in) Total Runoff ( n) Peak Ru off (cfs) Weghted C rve N mber T me of Co ce t at o(days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 3 0 00 0 00 3 50 0 00 0 00 010 000 000 17 46 0 00 0 00 Subarea Subarea Suba ea A B C 318 000 000 471 000 000 Unpaved Unpa ed Unpaved 3 50 0 00 0 00 1 51 0 00 0 00 2 56 0 64 2 23 74 00 0001858 , ' Subbasm {watershed} AREA 3 OFF A ' 4 4 4 ' 4 3 3 , 3 3 c 2 i �2 � � 2 � , 1 � , , ' 0 0 � 0 0 , ' 2 2 2 ' Z 1 , 1 1 t 1 ' � 1 w � � w 1 O C � � , � 0 0 ' 0 0 0 0 � 0 0 0 , , 3� 3 � �� Ra�nfall Intensity Graph � � � � 3 � E 1 ..._... _ � �� __.__._____...� _______ ...... ____ ___y� [ _ � ._ � _ ..._ ..._.. �._. i � j �` __� r __ _—�_ __ � _._ _ _��.�_ _�_ ...—�..__m ___ �__ � k � � , _ � _ � � .� �i r��. _�.�__ -� _ �- ___ _ __ �� ___ _ � ; ,_ _ 4 j a � —, - � � � _. _ _ _ ____�_ W ____ � � � � �� __� � , � d { € .— _. _ .._... _. .... �..�.. ....�___. _._.. .�,_.�. €mm J 6 _ _ _ # � a � � � z_ �_W__ _ __ _ _ � __ �__ti_ � � l § a g_ _ _ � m _ _ __._ _ _ _ _ __�__„ _ _ _ ,� i d € 4 2 _ _ �� _ 2 1 2 3 3 7 i 5 1 3 ) 1 I 3 3 r �' 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph t i r---- E � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 T�me (hrs) Subbasm {watershed} AREA 3 OFF B Input Data Area (ac) 2 OS We ghted Curve Numbe 74 17 Ra n Gage ID RAIN Compos�te Curve Number Area Sol Curve SodlSurface Descnption (acres) Group Number 75 / grass cover Good 2 04 C 74 00 Pa ed park ng & roofs 0 Ot C 98 00 Compos te Area & Weighted CN 2 OS 74 17 Time of Concentration Sheet Flow Computat ons Manrnngs Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall (in) Velociry (ft/sec) Computed Flow T me (m n) Shallow Concentrated Fiow Computations Flow Length (ft) Slope ( h) Surface Type Veloc ry (ft/sec) Computed Flow T me (m ) Total TOC (min) 18 15 Subbas�n Runoff Results Total Rainfall (in) Total R noff (in) Peak Ru off (cfs) We ghted Curve Number T me of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 700 0 00 0 00 3 29 0 00 0 00 350 000 000 010 000 000 f683 000 000 Subarea Subarea Subarea A B C 191 0 00 0 00 2 23 0 00 0 00 Unpa ed Unpa ed Unpaved 241 000 000 1 32 0 00 0 00 2 56 0 65 1 81 74 17 0001809 � ' Subbas�n {watershed} AREA 3 OFF B ' 4_ 4 4 ' 4 3 3 , 3 3 L 2 , c � 2 :� 2 c m 2 � ' ' 1 1 � , 0 0 � 0 0 ' � � ' ' 1 1 1 , ' 1 1 , U � O 7 0 , � 0 0 0 , 0 0 0 , 0 0 , ' ,_ _._ __ k _ 3 � i ( y�, _____ __ _ _ 2 } 3 E 4 3 __ _ __ ____ i � t 1 � _ _ _� � _ i � _ � 3 3 - � � 4 E 2 I 2 E 3 �--- � - � 1 3 � 1 2 ..... _.._. _..._ _ E ...._,._ i 1 � - 3 4 z __ � 3 I i i 1 3 � 3 i l i > Ramfall Intensdy Graph ! t I � � � 1 � ( } _ .... _ �-..... .� � _ W _� � �,_ _ i � I i S � � C .........._ �f. __ � � ( i i i � t � -,_ 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph 5 10 75 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasm {watershed} AREA 3 OFF C Input Data A ea (ac) 1 25 Weighted Curve Numbe 75 57 Ra Gage ID RAIN Composite Curve Number Area Sod Curve So USurface Descnption (ac es) G oup Number Paved parking & roofs 0 OS C 98 00 75 / grass co er Good 1 17 C 74 00 Composite Area 8 Weighted CN 1 25 75 57 T�me of Concentrat�on Sheet Flow Computations Ma ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (in) Veloc ry (fUsec) Computed Flow T me (m n) Shallow Concentrated Flow Computations Flow Le gth (ft) Slope ( / ) Surtace Type Veloc ty (fUsec) Computed Flow Time (min) Channel Flow Computat ons Mann ng s Roughness Flow Length (ft) Cha nel Slope ( / ) Cross Sechon Area (ft ) Wetted Penmete (ft) Veloc ry (ft/sec) Computed Flow Time (m n) Total TOC (m n) 40 47 Subbasin Runoff Results Total Rainfall (in) Total Runoff ( n) Peak Runoff (cfs) We ghted Curve Numbe T m f C ce t t o (days hh mm ) Subarea Subarea Subarea A e C 4 0 00 0 00 100 0 00 0 00 391 000 000 3 50 0 00 0 00 011 000 000 15 70 0 00 0 00 Subarea Suba ea Subarea A B C 309 0 00 0 00 2 33 0 00 0 00 Unpaved Unpaved Unpaved 2 46 0 00 0 00 2 09 0 00 0 00 Subarea Suba ea Subarea A B C 3 0 00 0 00 525 0 00 0 00 7 19 0 00 0 00 s o 00 0 00 8 32 0 00 0 00 039 000 000 22 68 0 00 0 00 2 56 071 0 79 75 57 0 00 40 28 ' ' Subbasm {watershed} AREA 3 OFF C ' 4 4 4 ' a 3 3 ' 3 3 L 2 , v 2 m z c m 2 � ' ' 1 1 � , 0 0 � o 0 ' , 0 85 08 , 0 75 07 o ss , os 0 55 � 05 w � 0 45 c 04 � ' � 0 35 03 0 25 , 02 0 15 � 01 0 05 ' 1 Ra�nfall Intens�ty Graph i � � � I { � E € � _ _M____ � �_. _�___ _ m ,._--- _ _ �� _ _ ____ �„ _ W � _ � �_ � _ __ __ � � � � � _ ____�� _ _ � _ _ _. �_ �.. .. _ _ __ _ r � � � � �. � _ � � .. _ _ � � _ e_________ _ _ _ . i € „ � _�_ � € � � _ __ _ ._ __�„___ _ _.-�__ _ �_ _.� ___ � I � � � _ _ � __ _� � � § � �_ � � w �_ � i �� "` mm} _ _ � __ _ _ ��_L � � � � _� _-____ _ _ _ _ . �� .--�_ .. ...,_ ..�_ _ ,� -� _ _ � k _ .. . �_ _. _ _ , - _ � -- i � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph � _ __�� _ _ _ I i _._ _ � � � I r 5 10 15 20 25 3� 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasm {watershed} AREA 3 SUB B Input Data Area (ac) 3 69 We ghted Curve Number 73 10 Ra n Gage ID RAIM Compos�te Curve Number Area So I Curve Soil/Surface Descnptron (acres) Group Number Pasture grassland or range Good 2 86 C 74 00 Woods Good 0 83 C 70 00 Compasite Area 8 Weighted CN 3 69 73 10 Time of ConcenVation Sheet Flow Computations Manrnng s Roughness Flow length (ft) Slope ( / ) 2 yr 24 hr Rainfall (in) Velocity (ft/sec) Computed Flow Time (min) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surtace Type Veloc ry (ft/sec) Computed Flow Time (min) Total TOC (m n) 28 30 Subbasin Runoff Results Total Rainfall (in) Totai Runoff (in) Peak Runoff (cfs) We ghted Curve Number Time of Concentration (days hh mm ss) Subarea Suba ea Subarea A B C 4 0 00 0 00 100 0 00 0 00 2 0 00 0 00 350 000 000 008 000 000 20 53 0 00 0 00 Subarea Subarea Subarea A B C 727 0 00 0 00 94 0 00 0 00 Unpaved Unpa ed Unpaved t 56 0 00 0 00 7 77 0 00 0 00 2 56 0 60 2 38 73 10 0002818 ' ' 1 ' ' ' ' � ' � 1 � , � ' 1 ' ' , Subbasm (watershed}.AREA 3 SUB B a a a 3 3 3 3 L z C � 2 � z C N 2 � 1 1 1 1 0 0 0 0 2° 2 2 2 2 1 1 1 1 t U ' O 1 c � � 0 0 0 0 0 0 0 0 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) �� Rainfall lntensity Graph E 6 _ _ —,__ � _ __ � F ! � . � _ _� � ` � E i_ _ _ , .._.. �.�� _ t � # � � 4 1 3 i E .,.,____ _7........ _ € { i � _ __�—� { _ � � i � r--� 1 _ ____ _ � .�__._�__ w � _ ¢_� i _ �_.�.' 1 � � 1 �, ��..��__.__�,___�� i � � T__„m__ ____�....____m. � �,_ t � � � � � � � _ P # __ � _____ � _____�— 1 � _ ! { { � m _ _ � _. _.. 1 1 � ��_____ ��__ _ 1 ( E � , 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph Subbasm {watershed} AREA 3 SUB C Input Data Area (ac) 3 14 Weighted Curve Numbe 70 00 Rain Gage ID RAIN Compos�te Curve Number Area Soil Curve So I/Surtace Descnpt on (ac es) G oup Number Woods Good 374 C 7000 Compos te Area & We ghted CN 3 14 70 00 Time of Concentration Sheet Flow Computat ons Mann gs Rough ess Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall ( n) Velocity (fVsec) Computed Flow T me (m n) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ry (ft/sec) Computed Flow T me (m n) Total TOC (m n) 19 77 Subbasm Runoff Results Total Ra nfall ( n) Total Runoff (i ) Peak Ru off (cfs) We ghted C rve N mber Time of Conce t at o(days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 7 00 0 00 0 00 26 000 000 3 50 0 00 0 00 0 09 0 00 0 00 7 8 49 0 00 0 00 Subarea Subarea Subarea A B C 190 0 00 0 00 2 33 0 00 0 00 Unpa ed Unpaved Unpaved 246 000 000 1 29 0 00 0 00 2 56 0 48 1 85 70 00 0 00 19 46 ' ' Subbasin {watershed} AREA 3 SUB C ' a a a � 4 3 3 , 3 3 L z ' C � 2 � 2 c ,� 2 � ' � i � � ' 0 0 ' o 0 ' ' � ' ' 1 t ' ' � � � ' w i ° 0 � 0 ' � 0 0 0 ' 0 0 0 � 0 0 , ' 3 � i __ � 3 _ -N-- - i � _ _... � i 3 - s � � s — � s > i 3 � � 3} �J 3 3 i l S i� __ � 3 Rainfall Intensity Graph 1 , _ �_ _ _ __ _ _ i — � — r � GW � �, _ � _ _ � � _' � � _ _ � W, _�_ � _ � � ( I � _ _ _ _ � _ _ � � m � _ , . V W , _ ____. _ � _ _ _ _____„ ______ , _ _, _ _ _ E � .-... -..... -..- - -..-.- .�.... �._.�.�.____�___......_____� ....�. � i i � € _i � ¢ _ � ,� � � __�___ � � � � � } _ _ _ ___,�_ _ �� { _ � _ f__ __ _ _ � — 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph I € f E � _ 1 � � ! i 0 7u t5 Zo 25 30 35 40 45 SO 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasin {watershed} AREA 4 EX A Input Data Area (ac) 18 63 We ghted Curve Numbe 72 27 Ra n Gage ID RAIN Composite Curve Number Area Sod Curve So I/Surface Descnpt on (ac es) Group Number Waods Good 8 08 C 70 00 Pasture grassland or range Good 10 55 C 74 00 Compos te A ea & W e ghted CN 18 63 72 27 Time of ConcenVation Sheet Flow Comp tat ons Manning s Rough ess Flow Length (ft) Slope ( / ) 2 yr 24 h Ra nfall ( n) Veloc ty (fUsec) Computed Flow T me (m n) Shallow Concentraled Flow Computat�ons Flow Length (ft) Slope ( / ) Surface Type Veloc ry (ft/sec) Computed Flow T me (min) Total TOC (m ) 37 02 Subbasin Runoff Results Total Ra fall ( ) Total Runoff ( ) Peak Runoff (cfs) We ghted Curve Number T me of Concentrat o(days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 1 3 0 00 0 00 350 000 000 007 000 000 24 39 0 00 0 00 Suba ea Subarea Subarea A B C 7407 0 00 0 00 t 31 0 00 0 00 Unpaved Unpaved Unpa ed 1 85 0 00 0 00 12 62 0 00 0 00 2 56 0 57 9 60 72 27 0003707 1 � Subbasin {watershed)_AREA 4 EX A � ac a a � 4 3 3 ' 3 3 c 2 � _ 2 � 2 c m 2 � � ' 1 t ' ' 0 0 � 0 0 � � ios io � 95 9 85 8 � 75 7 65 � N 6 � 55 c 5 � � � 45 4 35 � 3 25 2 15 ' 1 OS � � Ra�nfall Intensity Graph �� E �_ _� � __ � � _ � -- � � —.--- _ _ _ __ _ _ _ _ _ � �_ z__ � � � � k _, _ �_.�_-_____._ # � . __ _ _ W W� .. � a � � t L i � � __ i _ � ��-_-- ° � d I � �.._� � _ �_ �_.�. _ _ _ _ �i__ _ _ _ � , _ _ � � € �- � �-- �---�-------_ _ � —_ _ __ _ � .____ �.. ____�_ _ �—�, __.. � . ._ � _ „ [ � __� � _ __ � � 1 ..... ..... _, w----...'M""-F-'""-____., .. ...........W, _. +-- _...., ...... ,... ,W._ ...... .._._ ._._. � � � � � i � .,_. ,..-.. ,._`____•.--____ --°------.,....�._.___ ...... ...... _� 7 ...., ...... �- -- r � l t � � � . _ _ _ _______� � � _ I- _ � � � 5 10 75 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) s _€ _ � � _ �� _ Runoff Hydrograph ( � d ( � a � � i S 10 75 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbas�n {watershed} AREA 4 OFF A input Data Area (ac) 8 93 We ghted Curve Number 74 51 Ra n Gage ID RAIN Composite Curve Number Area Sol Curve SoiUSurface Descnption (acres) G oup Number Paved parking 8 roofs 0 19 C 98 00 75 / grass cover Good 8 74 C 74 00 Composite Area & Weighted CN 8 93 74 57 Time of Concentration Sheet Flow Computat ons Manning s Roughness Flow Length (ft) Slope ( /o) 2 yr 24 hr Rainfall ( n) Vebciry (ft/sec) Computed Flow T me (mm) Shallow Concentrated Flow Computat ons Flow Length (ft) Siope ( / ) Surface Type Velocdy (fVsec) Computed Flow Time (mm) Total TOC (m n) 27 89 Subbasm Runoff Results Total Raintall ( n) Total Runoff (in) Peak Runoff (cfs) Weighted Curve Number T me of Concentrat o(days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 02 0 00 0 00 350 000 000 006 000 000 26 88 0 00 0 00 Subarea Suba ea Subarea A B C 144 0 00 0 00 2 17 0 00 0 00 Unpaved Unpa ed Unpaved 2 38 0 00 0 00 1 01 0 00 0 00 2 56 0 66 651 74 51 0002753 � � Subbasin {watershed} AREA 4 OFF A � ac 4 4 � 4 3 3 � 3 3 L 2 � C •� 2 m p `c � z � � ' � 1 ' 1 0 0 � 0 0 3 i � 1 __ _ _ __ _ 1 � 3 _ _ _._ � � � i c � i�. , _ _ __ _ � � _, __ � € t 3 ( 3 __ _.. _ 3 � > _ _ � � 3 __ . _ _ __ i � _m i 3 � 1 � � � _ ___,____ _w � �_ I 3 i l � _� � � Rainfall Intens�ty Graph r � � 4 ( � -----°._.-______ _. �._...._ ._...._ _ _..,--_ � _} _ _ � _ 1 _ �... .� _ _ � ___ �__ � � � � _ � 3 � _ _ _ E_ _ _, �. � ___� _ . _ � _ _ _ __ � s � k � s � i � � � � _ , � � ___ � _ -i � C � � { _� , -.- ,_ _ _ � _ � � � � i _ _ � _ � ___�_-____. E 3 � 7 � � � � � _ _� � 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 � Time (hrs) � ' Runoff Hydrograph s � s � 4 1 U3 0 � � �� 2 � � � 0 € [ i d l � � t � € � � l � 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � Subbasin {watershed} AREA 4 OFF B Input Data A ea (ac) 1 66 We ghted Curve Numbe 74 21 Ram Gage ID RAIN Compos�te Curve Number Area Sod Curve So IlSurface Desc ption (acres) Group Number Paved pa king 8 roofs 0 01 C 98 00 75 / grass cover Good 1 64 C 74 00 Compos te A ea 8 Weighted CN 7 65 74 21 T�me of Concentretion Sheet Flow Computat ons Man ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 h Ra nfall (m) Veloc ty (ft/sec) Computed Flow T me (m ) Shallow Co centrated Flow Computations Flow Length (ft) Slope ( ! ) Surface Type Velocry(ftlsec) Computed Flow T me (m n) Total TOG (m ) 30 OS Subbasin Runoff Resuits Total Ra fall ( ) Total R noff ( n) Peak Ru off (cfs) We ghted Curve Number T me of Concentrat o(days hh mm ss) Subarea Subarea Suba ea A B C 4 0 00 0 00 100 0 00 0 00 1 0 00 0 00 350 000 000 0 06 0 00 0 00 27 09 0 00 0 00 Subarea Subarea Subarea A B C 441 0 00 0 00 2 39 0 00 0 00 Unpaved Unpa ed Unpaved 2 49 0 00 0 00 295 000 000 2 56 0 65 1 13 74 21 0 00 30 03 � � Subbasm {watershed} AREA 4 OFF B r4 4 4 � 4 3 3 � 3 3 L 2 � v 2 � 2 c m z � 1 � t 1 � , 0 0 � 0 0 � B D 4 2 4 B -- D Ra�nfall Intensity Graph f -°-- _ ._.�._ ...� -.-- �� . ...... ..._ � _..._ - ', ( i # � ,___ _ _ _ } ____ _ R � __ _ E __ _ . _ I f � � E __ __ _ _ ¢ _ _._ ,� _ � � W,__ _ , __ f �� _ _K � _ _ ___m _� �� r__ .__ 1 _ _ _ D ` � 4 E 2 � i z � g� T_ _ _ ( i ! 6 € t 4 � 2 � _ _ _ � _ � � �____ _ _ ____ � _ _ _ ___ __ i � ( 3 _ , _ ___ _ �_� _ _ _ _ _ _ 3 a ¢ 1 � E � _ � _ _ ._ _ _ _ — �_ _ � , ., 1 � ' 0 � ( 0 ( 0 1 ` U oI `o � o � � ( 0 ( � 0 ( 0 ( � o c 0 � � t )5 1 35 9 35 8 75 � i5 6 i5 5 35 4 35 3 ?5 2 is i 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph ; k t 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Junction Input SN Element Invert Ground/Rim G ound/Rim Innial InAial Surcharge Surcharge Ponded Minimum ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe Elevatron Offset Elevation Depth Cover (ft) (ft) (ft) (ft) ift) (ft) (ft) (fl ) (��l 1 J t 634 70 640 70 6 00 634 70 0 00 640 70 0 00 0 00 0 00 2 J2 640 40 646 40 6 00 640 40 0 00 646 40 0 00 0 00 0 00 � � � � � �� LJ u 1 � � � � ' � � � � � � � � �� ' � � � � i Junction Results SN Element Peak Peak Max HGL Max HGL Max Min Ave age HGL Average HGL Time of T me of Total Total T me ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevaton Depth Max HGL Peak Flooded Flooded I flow Atta ned Atta ned Depth Atta ned Attained Atta ned Occurtence Flood ng Volume Attamed Occurrence (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh mm) (days hh mm) (ac ) (m ) 1 J 1 19 98 19 98 634 70 0 00 0 00 6 00 634 70 0 00 0 00 00 0 00 00 0 00 0 00 2 J2 16 63 16 63 640 40 0 00 0 00 6 00 640 40 0 00 0 00 00 0 00 00 0 00 0 00 lJ Pipe Input SN Eleme t Le gth inlet Inlet Outlet Outlet Total Average P pe P pe P pe Mann g s E trance Ex VBend Addd onal I t al Flap No of � ID Invert Invert invert Invert Drop Slope Shape D ameter or Width Roughness Losses Losses Losses Flow Gate Barrels Elevation Offset Elevation Offset Height (ft) (ft) (ft) (ft) (ft) (ft) ( k) (in) ( n) (ds) 1 l k 04 65 76 640 40 0 00 0 00 -640 40 640 40 973 8400 Dummy 0 000 0 000 0 0130 0 5000 0 5000 0 0000 0 00 No 1 � 2 Lmk 1 35 72 634 70 0 00 0 00 647 65 634 70 1776 8800 Dummy 0 000 0 000 0 0130 0 5000 0 5000 0 0000 0 00 No t � � � � � � � � � 1--- � L_J � � � � � � � � � � � �� Pipe Results SN Element Peak T me of Des gn Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total T me F o de Reported ID Flow Peak Flow Capac ty Des gn Flow Veloc ty Time Depth Depth/ Su cha ged N mbe Co d t o Occu re ce Rat o Total Depth Ratio (cfs) (days hh mm) (cfs} (fVsec) (m n) (ft) (min) 1 L k 04 16 63 0 03 35 0 00 0 00 0 00 0 00 0 00 0 00 2 Link 1 19 98 0 03 30 0 00 0 00 0 00 0 00 0 00 0 00 Pro�ect Descnption F �e Name PARCEL 5&6 PRE SPF D s pt o E 1C3D20111C v I 3D P �ects\Sto ebndge(2011)\Parcel 5\050 pond dwg E 1C3�2011\C 13D Pro�ects\Stoneb dge(2011)\Pa ce15\050 WS EXISTING dwg Pro�ect Options Flow Units CFS Ele at on Type Elevat o Hyd ology Method SCS TR 20 T me of ConcentraUon (TOC) Method SCS TR 55 Link Rout ng Method Kinemal c Wa e Enable Overtlow Ponding at Nodes YES Sk p Steady State Malysis Time Pe ods NO Analysis Options Start Analysis On Dec 15 2011 00 00 00 End Analys s On Dec 19 2011 00 00 00 Start Reporting On Dec 15 2011 00 00 00 Antecedent Dry Days 0 days Runoff (Dry Weather) T me Step 0 01 00 00 days hh mm ss Runoff (Wet Weather) Time Step 0 00 OS 00 days hh mm ss Report ng T me Step 0 OQ OS �� days hh mm ss Rout�ng Time Step 30 seconds Number of Elements ari Ra n Gages 1 Subbas s 9 Nodes 4 Junctons 2 OuKalls 2 Flow D�versions 0 Inlets 0 Storage Nodes 0 L nks 2 Channels 0 P pes 2 Pumps 0 Onfces 0 We s 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details SN Ra n Gage Data Data Source Ra nfall Rain State Cou ty Return Ra nfall Ra nfall ID Sou ce ID Type Un ts Per od Depth D stribution (years) (inches) 1 T m S t0YR6HR C m lat e h N rth C I U o 10 3 70 Charl tte NC 6 h 10 y �l �I J � � � � � � �� i� � � � � � � � � � Subbasin Summary SN Subbas n Area Weighted Total Total Total Peak T me of ID Curve Ra nfall R noff R noff R noff Concent at on Numbe Volume (ac) (in) (m) (ac in) (cfs) (days hh mm ss) 1(watershed} AREA 3 EX A 20 93 72 20 3 70 1 27 26 49 28 29 0 00 29 44 2{watershed}AREA 3 OFF A 2 62 74 00 3 70 1 38 3 62 4 82 0 00 18 58 3{watershed} AREA 3 OFF B 2 OS 74 17 3 70 1 39 2 86 3 87 0 00 18 09 4{watershed} AREA 3 OFF C 1 25 75 57 3 70 1 48 1 86 1 69 0 00 40 28 5{watershed} AREA 3 SUB B 3 69 73 10 3 70 1 32 4 88 5 36 0 00 28 18 6{watershed}AREA 3 SUB C 3 14 70 00 3 70 t 13 3 56 4 55 0 00 19 46 7{watershed}AREA 4 EX A 18 63 72 27 3 70 7 27 23 67 22 43 0 00 37 01 8{watershed]AREA 4 OFF A 8 93 74 51 3 70 1 47 12 61 14 09 0 00 27 53 9{watershed}AREA 4 OFF 6 1 66 74 21 3 70 1 39 2 31 2 48 0 00 30 03 � Node Summary SN Element Eleme t In ert G ou d/R m In t al Su cha ge Ponded Peak Max HGL Max M n T me of Total Total T me � ID Type Ele at o (Ma ) Wate Ele at on A ea I flow Elevat on Su charge F eeboard Peak Flooded Flooded Ele ation Ele at on Atta ned Depth Atta�ned Flood ng Volume Atta ed Occurrence (ft) (ft) (ft) (ft) (ft ) (cfs) (ft) (ft) (ft) (days hh mm) (ac in) (m n) � 7 J7 Junct on 634 70 640 70 634 70 640 70 0 00 46 42 634 70 0 00 6 00 0 00 00 0 00 0 00 2 J2 Juncbon 640 40 646 40 640 40 646 40 0 00 37 93 640 40 0 00 6 00 0 00 00 0 00 0 00 3 Out 1 O tlall 647 65 46 42 647 65 4 Out 2 Outfall 640 40 37 93 640 40 � � � � � � ' � � � � � � � � r-i �_� � �, Link Summary SN Element Element From To (Ou�et} Length Inlet Outlet Average Diameter or Mannings Peak Design Flow Peak Flowl Peak Flow Peak Flow Peak Flow Tofal Time Reported �� ID Type �1nlet) Node Inver! Inve�t Slope He�ght Roughness Flow Capaaty Design Flow Velor�ty Depfh Deptl�l 5urcharged Condi6on Node Elevabon Elevabon Ratio Total Deptl� RaUo (�1 Irt) Iftl 1�1 (�n) Idsl 1�1 (tVsec) Ifl) (mm) � i Unk-04 Pipe J2 Out 2 65 76 640 40 0 00 913 8400 0 000 0 0130 37 93 0 00 0 00 0 00 0 00 0 00 0 00 2 link 1 Pipe J1 Out 1 3512 634 70 0 00 1776 8800 0 000 0 Oi 30 46 42 0 00 0 00 0 00 0 00 0 00 0 00 � � � � LJ � � �� _ J t � � � � � Subbasin Hydrology Subbasin {watershed} AREA 3 EX A Input Data Area (ac) 20 93 Weighted Curve Number 72 20 Ra n Gage ID RAIN Composite Curve Number Area Sal Curve Soil/SurfaceDescrpton (acres) Group Number Woods Good 9 40 C 70 00 Pasture grassland or range Good 11 52 C 74 00 Compos te Area & Weighted CN 20 92 72 20 Time of Concentration TOC Method SCS TR 55 Sheet Flow Equation Tc (0 007 ((n Lf)"0 8)) /((P 0 5) (Sf^0 4)) W here Tc Time of Concentrat on (hr) n Mannings roughness Lf Flow Length (ft) P 2 yr 24 hr Ra nfall (inches) Sf Slope (fUft) Shallow Concentrated Fiow Equation V 16 1345 (Sf^0 5) (unpaved surface) V 20 3282 (Sf 0 5) (paved surface) V 15 0(Sf^0 5) (g assed waterway surface) V 10 0(Sf^0 5) (nearly bare & unt Iled surface) V 9 0 (Sf"0 5) (cult ated st a ght ows surface) V 7 0 (Sf^0 5) (short grass pasture suAace) V 5 0 (Sf^0 5) (woodland surface) V 2 5 (Sf^0 5) (forest w/heavy I tter surface) Tc (Lf / V) I (3600 sec/hr) Whe e Tc Time of Concentrahon (hr) Lf Flow Length (ft) V — Veloc ty (ft/sec) Sf Slope (ft/ft) Channei Flow Equat o V (1 49 (R (2/3)) (Sf^0 5)) I n R Aq/Wp Tc (Lf / V) / (3600 sec/h ) W here Tc T me of Co ce t at o(h ) Lf Flow Length (ft) R Hydraul c Rad us (ft) Aq Flow Area (ft ) Wp Wetted Perimeter (ft) V Veloc ry (fUsec) Sf Slope (fUft) n Mann ng s roughness � i� � _� � � � �� Sheet Flow Computat ons Mann ng s Ro ghness Flow Length (ft) Slop ( / ) 2 yr 24 h Ra fall ( n) Veloc ry (ft/sec) Computed Flow Time (min) Shallow Concent ated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Veloc ry (ft/sec) Computed Flow T me (m n) Total TOC (m n) 29 74 Subbasm Runoff Results Total Ramfall ( n) Total Runoff (in) Peak Runoff (cfs) Weighted Curve Number Time of Concentrat on (days hh mm ss) Subarea Subarea Suba ea A B C 4 0 00 0 00 100 0 00 0 00 305 000 000 3 50 0 00 0 00 0 t 0 0 00 0 00 1734 000 000 Suba ea Subarea Subarea A B C 1651 0 00 0 00 1 9 0 00 0 00 Unpaved Unpaved U paved 2 22 0 00 0 00 12 39 0 00 0 00 3 70 1 27 28 29 72 20 0 00 29 44 Subbasm {watershed} AREA 3 EX A �' S 5 5 5 4 4 a a 3 � 3 L 3 c � g m � Z � 2 � 2 2 � 1 1 1 0 0 0 0 y U O c � � ; _ _ 3 i � � _ � i ; _ _ i t >_ � i7 ■ ?3 �2 �� ?0 19 IS �7 16 �$ 14 13 12 I1 10 9 8 7 6 5 4 3 2 t � � Rainfall Intens�ty Graph � _ _ _ _t _ � _____ i i 2 � _ _ _ _ _ �_ — _� � � — � ,___ �___.__ _r�___s ____ __________ ____ _ � � _ -k......._ _...... _... _ _.._ � ¢ _ _ _ —r_�_�_ _ . _ _ _ � _� _ __ , � } �� i 1 j i G _ _��,_ _ _ � t t J___ � _ � _ _. _ _ _ _ I _ # _ � � ___ _ — _ � — — I � i i __ � r-- ___, _ � t � _ _ _ _ __._ � � __ 4._ _ _v i "�� I w �W � � { � � r _ ��.. � _ I _ ��. � _.._.�. .�I � _ -- _ —_—i � } 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 9 T�me (hrs) Runoff Hydrograph ) 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Su tsa au ab Time (hrs) � Subbasin {watershed} AREA 3 OFF A � Input Data Area (ac) 2 62 Weighted Curve Number 74 00 � Rain Gage ID RAIN Composite Curve Number Area So I Curve � So I/Surtace Descr pt on (acres) G oup Numbe 75 / grass cover Good 2 62 C 74 00 Compos te Area 8 W eighted CN 2 62 74 00 T�me of Concentration � � � � � � � � � � � � � � � Sheet Flow Computations Mannmg s Roughness Flow Length (R) Slope ( / ) 2 yr 24 hr Ra nfall ( n) Veloc ty (fUsec) Computed Flow Time (m n) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed Flow Time (m n) Total TOC (m n) 78 97 Subbasin Runoff Results Total Rainfall ( n) Totai Runoff ( ) Peak Runoff (cfs) Weighted Curve Number T me of Co centration (days hh mm ss) Subarea Subarea Suba ea A B C 4 000 U00 100 0 00 0 00 3 000 000 3 50 0 00 0 00 0 10 0 00 0 00 17 46 0 00 0 00 Subarea Subarea Subarea A B C 318 000 000 471 000 000 U pa ed Unpa ed Unpa ed 3 50 0 00 0 00 1 51 0 00 0 00 3 70 1 38 4 82 74 00 0001858 Subbas�n {watershed} AREA 3 OFF A s 4 t � = 3 m `c m � 2 1 0 a a 4 3 3 3 3 N Z � 2 O 2 c � 2 1 1 1 1 0 0 0 Rainfall Intensity Graph _ � s a i i -- s __ � _ _ i i 3 � � _ _� � _�t__ � _ T :� 3 > ' ► � � i 1 I 3 i � II 1 I � 3 3 i ' i ) � 3 i � i 7 i ) 1 3 i 3 i 3 1 � _ � € { � ( 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Time (hrs) Runoff Hydrograph 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � � 4J � � � � � � � � � � � � r � �J� � Subbas�n {watershed} AREA 3 OFF B Input Data A ea (ac) 2 05 W e ghted Curve Number 74 17 Ra Gage ID RAIN Compos�te Curve Number A ea Soil Curve So I/S rface Descr pt on (acres) Group Numbe 75 / g ass co er Good 2 04 C 74 00 Pa ed park ng 8 roofs 0 01 C 98 00 Composite Area � We ghted CN 2 OS 74 17 Time of Concentration Sheet Flow Computations Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra fall () Veloc ry (ft/sec) Computed Flow T me (m n) Shallow Concentrated Flow Computations Flow Le gth (ft) Slope ( / ) S rface Type Veloc ry (ft/sec) Comp ted Flow T me (m ) Total TOC (m n) 18 15 Subbas�n Runoff Results Total Ra fall (in) Total Ru off ( n) Peak Ru off (cfs) We ghted Curve Number T me of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 329 000 000 350 000 000 0 10 0 00 0 00 16 83 0 00 0 00 Subarea Subarea Subarea A B C 191 0 00 0 00 2 23 0 00 0 00 Unpaved Unpa ed Unpa ed 241 000 000 1 32 0 00 0 00 3 70 1 39 3 87 74 t 7 0001809 Subbasm {watershed} AREA 3 OFF B 0 5 4 r c - 3 m `c m � 2 � 0 a 3 3 3 3 2 2 N 2 � 2 `o C � � i � � i 0 0 0 i i i s S l -- i i i — 1 > �J i i i � 3 3 i s s � s � 1 i ) Ra�nfall Intensity Graph � i � � � � � _ _ _ 3 ' v � � � � � I � � � � � i i 4 i � �t_ _ _ _ _ } _ _ _ .__. _ ( � __ ...,.. ..m. d .... _.�� ...._ _.� __._.,__._._. .._..` � �I I � � � E p € � j � 7 { E _ �_--, -----__�.-_ _ � _ i � � ( � � � � , � , � r � � _ __— _. _ __ ____f__. _�. _— � i � � � e 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Time (hrs) Runoff Hydrograph � � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � � � � � � � ■J Subbasin {watershed} AREA 3 OFF C Input Data Area (ac) 1 25 Weighted Curve Number 75 57 Rain Gage ID RAtN Composite Curve Number Area So I Curve Soil/Surface Descr pt on (ac es) Group Number Paved parking & roofs 0 08 C 98 00 75 / grass cover Good t 17 C 74 00 Compos te Area & Weighted CN 1 25 75 57 T�me of ConcenVatlon Sheet Flow Computations Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall (in) Veloc ty (ft/sec) Computed Flow Time (m n) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ftlsec) Computed Flow T me (m n) � Channel Flow Computations Manning s Roughness Flow Length (ft) Channel Slope ( / ) Cross Sect on Area (ft ) � Wetted Perimeter (ft) Veloc ty (ftlsec) Computed Flow Time (m n) Total TOC (m n) 40 47 � � � � � � � ' ' Subbasm Runoff Results Total Ra nfall ( n) Total Runoff ( n) Peak R noff (cfs) We ghted Curve Number T me of Conce t abon (days hh mm ss) Subarea Suba ea Subarea A B C 4 0 00 0 00 100 0 00 0 00 391 000 000 350 000 000 011 000 000 15 70 0 00 0 00 Suba ea Subarea Subarea A B C 309 0 00 0 00 2 33 0 00 0 00 Unpa ed U paved Unpaved 2 46 0 00 0 00 2 09 0 00 0 00 Subarea Suba ea Subarea A B C 3 000 000 525 0 00 0 00 119 000 000 5 0 00 0 00 8 32 0 00 0 00 039 000 000 22 68 0 00 0 00 3 70 1 48 1 69 75 57 0 00 40 28 Subbasin {watershed} AREA 3 OFF C 5 a r � - 3 m `c m � 2 t t t 1 1 1 1 1 1 U O `o c � 0 0 0 0 0 0 0 a i 3 i � i 1 7 i 5 S 3 � � 3 3 7 i i 1 3 � 1 Ramfall Intensrty Graph � � I i � I � � _� _ �.. f 9 I � d E � [_ _ _ � � } t � _ 4 _ _ _. �. �..__._ , I i � E...._.__.._ _._._ ._.._.,...__ ...._.�.�._._. .. � � i s 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Time (hrs) Runoff Hydrograph 5 70 15 20 25 30 35 40 45 50 55 60 ss �0 /b su ab au ao Time (hrs) � � r � � � r � � � � � � ! _J � � � � � Subbasm {watershed} AREA 3 SUB B input Data Area (ac) 3 69 Weighted Curve Number 73 10 Ra n Gage ID RAIN Composite Curve Number Area So i Curve SoiUSurface Description (acres) Group Number Pasture grassland o range Good 2 86 C 74 00 Woods Good 0 83 C 70 00 Compos te Area & We ghted CN 3 69 73 10 Time of Concentrat�on Sheet Flow Computations Manning s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (in) Veloaty (ft/sec) Computed Flow Time (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Veloc ty (fUsec) Computed Flow T�me (m n) Total TOC (min) 28 30 Subbasm Runoff Results Total Rainfall (in) Total Runoff (in) Peak Runoff (cfs) We�ghted Curve Number Time of Concentration (days hh mm ss) Subarea Subarea Subarea A B C a o 00 0 00 100 0 00 0 00 2 0 00 0 00 3 50 0 00 0 00 0 OS 0 00 0 00 20 53 0 00 0 00 Subarea Subarea Subarea A B C 727 0 00 0 00 94 0 00 0 00 Unpaved U paved Unpa ed 1 56 0 �0 0 00 777 000 OOQ 3 70 1 32 5 36 73 10 0002818 Subbasm {watershed} AREA 3 SUB B b 5 a r c = 3 m c � � z � 0 5 5 5 a a a a 3 3 3 N 3 U v 2 `o c 2 � � 2 2 1 t � � � 0 0 s � ! ) � r I i i � , fi 1 � � W __ _ i 3 � � � ; ._ � � # _ _ -- � � _ � ( s � -- — i � a � a 3 i 1 2 3 4 3 4 2 2 B D 4 2 � B 6 4 2 Ramfall Intensity Graph € � ¥ E i � 1 � ( € � ( { � � � � � � { I � � � � -- � I � I � __ _ �s_ ..___ _ _ �` I � � ( i � { i t � � � i II � � _ � � _ _.____ � � _ __ � �-- _ _ _ � € � � I i I a ' � r i f 1 ! _ ..... _ ..�._ ... ._.,.-. __�__ _..., .... ._........_ ._._. t f d F E � � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrogreph 1 1 � i , � _ _ �. � t 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � Subbasin {watershed} AREA 3 SUB C � Input Data Area (ac) 3 14 � We ghted Curve Number 70 00 Ra GagelD RAIN Composite Curve Number A ea Sod Curve � Soil/Surface Description (acres) Group Mumber Woods Good 3 14 C 70 00 Composite Area & We ghted CN 3 14 70 00 Time of Concentration � �� Sheet Flow Computat ons Manning s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (in) Veloc ty (ft/sec) Computed Flow T me (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Veloaty (ft/sec) Computed Flow Time (m n) Total TOC (m n) 19 77 Subbasm Runoff Results Total Ramfall ( ) Total Runoff (in) Peak Runoff (cfs) We ghted Curve Number T me of Concentrat on (days hh mm ss) Suba ea Subarea Subarea A 8 C 4 0 00 0 00 100 0 00 0 00 26 000 000 350 000 000 0 09 0 00 0 00 1849 000 000 Subarea Subarea Subarea A B C 190 0 00 0 00 2 33 0 00 0 00 Unpaved Unpaved U pa ed 246 000 000 1 29 0 00 0 00 3 70 1 73 4 55 70 00 0 00 19 46 Subbasm {watershed}.AREA 3 SUB C 5 4 L C - 3 m `c m � 2 1 0 Ra�nfall Intensity Graph a 4 4 4 3 3 3 3 2 N U 2 v 2 `o � Z K 1 1 1 1 0 Q � 0 s 1 � l 3 i i ) 3 3 i 4 � � 1 2 1 3 D � z 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph � � � 1 S i _ �..._ d..._ ( 1 5 70 15 20 25 30 35 40 45 50 55 60 65 70 75 80 t35 yu 55 Time (hrs) l i r � ' � � � � 1 � � � � � � �� Subbasm {watershed} AREA 4 EX A Input Data Area (ac) 18 63 Weighted Curve Number 72 27 Ra n Gage ID RAIN Compos�te Curve Number Area Soil Curve SoilfSurface Description (acres) Group Number Woods Good 8 08 C 70 00 Pasture grassland or range Good 10 55 C 74 00 Composite Area & We ghted CN 18 63 72 27 Time of Concentretion Sheet Flow Computat o s Mann ng s Rough ess Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall ( n) Velocity (fUsec) Computed Flow Time (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surtace Type Veloc ty (ft/sec) Computed Flow T me (m n) Total TOC (m n) 37 02 Subbasin Runoff Results Total Rainfall pn) Total R noff ( n) Peak Ru off (cfs) We ghted Curve Number T me of Concent at on (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 3 0 00 0 00 3 50 0 00 0 00 007 000 000 24 39 0 00 0 00 Subarea Subarea Subarea A B C 1407 0 00 0 00 1 31 0 00 0 00 Unpa ed U paved Unpaved 1 85 0 00 0 00 12 62 0 00 0 00 3 70 1 27 22 43 72 27 0003701 Subbas�n {watershed} AREA 4 EX A 0 5 4 t c = 3 m � � � 2 , 0 N U 0 c � � R s s f � f i 5 s � € � � '"_ � ` i (I 1 � 1 ._._ _ _ _ , - _ i j 3 � � � _ _ _ �� ,�_ _ ( � � t � � , _ _ � _ s a � 2 �� ?0 19 18 17 16 15 4 3 2 1 0 9 8 7 6 5 4 3 2 1 Rainfall Intensity Graph i i � � _ a � { � I j i f � i � �� w__W__a_ � _ ! � i r � � , _ _ _._ _.� _ _ f t ( i i � � , � � a f b 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 SS 90 Time (hrs) Runoff Hydrograph 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � r L_J � , r � � , � � � � � � � � LJ �� Subbas�n {watershed} AREA 4 OFF A Input Data Area (ac) 8 93 We ghted Curve Number 74 57 Ra n Gage ID RAIN Composite Curve Number Area So I Curve Soil/Surface Descr pt on (ac es) G oup Number Pa ed park ng & roofs 0 19 C 98 00 75 / grass cover Good 8 74 C 74 00 Composite Area & We ghted CN 8 93 74 51 Time of Concentration Sheet F�ow Computations Manrnng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall ( n) Velocity (ft/sec) Computed Flow Time (min) Shallow ConcenVated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ty (fUsec) Computed Flow Time (m n) Total TOC (m n) 27 89 Subbasin Runoff Results Total Rainfall (in) Total Runoff (in) Peak Runoff (cfs) We ghted Curve Numbe Time of Concentration (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 02 0 00 0 00 350 000 000 0 06 0 00 0 00 26 88 0 00 0 00 Subarea Subarea Subarea A B C 144 0 00 0 00 217 000 000 Unpaved U paved U pa ed 2 38 0 00 0 00 1 01 0 00 0 00 3 70 1 47 14 09 74 51 0002753 Subbasm {watershed} AREA 4 OFF A b 5 4 L C = 3 m C N K 2 1 0 �e �4 �� < ii �c � w E U O � C 3 � E 4 '< 1 1 � _ i 3 -- i -- ) 7 5 6 5 5 ' 5 4 5 3 5 2 5 1 5 Ramfall Intensity Graph � I 1 _ � � ( 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Time (hrs) Runoff Hydrograph 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 T�me (hrs) � � � , � , � i � � � � , � ' � � � , Subbas�n {watershed} AREA 4 OFF B Input Data Area (ac) 1 66 Weighted Curve Number 74 21 Ra Gage ID RAIN Composite Curve Number Area So I Curve So I/S rface Descr pt on (acres) Group Number Paved parking & oofs 0 Ot C 98 00 75 / grass cover Good 1 64 C 74 00 Compos te Area & We ghted CN 1 65 74 27 Time of ConcenVation Sheet Flow Computat ons Mann ng s Rough ess Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra�nfall (�n) Veloc ty (fl/sec) Computed Flow Time (m n) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ry (ft/sec) Computed Flow T me (m n) Total TOC (m n) 30 OS Subbasm Runoff Results Total Ra nfall ( ) Total Ru off (in) Peak R noff (cfs) We ghted Curve Numbe T me of Conce trat on (days hh mm ss) Suba ea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 t 000 000 3 50 0 00 0 00 0 06 0 00 0 00 27 09 0 00 0 00 Subarea Subarea Suba ea A B C 441 0 00 0 00 2 39 0 00 0 00 Unpaved Unpaved Unpa ed 2 49 0 00 0 00 295 000 000 3 70 1 39 2 48 74 21 0 00 30 03 Subbasm {watershed} AREA 4 OFF B 6 5 a L � 3 N � 2 i S i � � - i 2 15 1 OS � � z 2 2 2 2 1 1 1 1 .� 1 N U � .� � O 7 � � � 0 � 0 � 0 � 0 � � Ramfall Intensity Graph � , i � � � , � ; , � � � � � � �W�� _ _� I k � � � ! � � � € ! t { i � ( � � I 4 � _ � �__ __ � � i � .� -_-,- _-•. �.._._. ��........ ..._ _.... ...._ _ _. � _..._. E __�"'_'�.'_ _ _ ._.... _ ._.... } ..._ _...... ._. � � ( ( E � ( { S ( � � � � { � ...._... - _.. _ ..... _._....... ___u. _... �..t________.._ _m___m__ m____� �_........, .._...._ _.�..._._._..T. � � I + { � E f f rt � r � � E f i � fi i i � t 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Time (hrs) Runoff Hydrograph P 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � LJ � Y � ' ' � � � � � �J � � � � � � � Junction Input SN Element Invert Ground/Run Ground/Rim Indial Inrtial Surcharge Surcharge Ponded Minimum ID Elevat�on (Max) (Max) Water Water Etevation Depth Area Pipe Elevat�on Offset Elevation Depth Cover (ft) (ft) (ft) (ft1 (ft) (ft) (ft) (n ) ( N 1 J 1 634 70 640 70 6 00 634 70 0 00 640 70 0 00 0 00 0 00 2 J2 640 40 646 40 6 00 640 40 0 00 646 40 0 00 0 00 0 00 � Junct�on Results SN Element Peak Peak Ma HGL Max HGL Ma M Ave age HGL Average HGL T me of T'me of Total Total Time � ID Inflow L te al Ele at o Depth S rcha ge F eeboa d Elevat on Depth Ma HGL Peak Flooded Flooded I flow Atta ned Atta ned Depth Atta ned Atta ned Atta ed Occurzence Flood ng Vol me Atta ned Occur2nce (cfs) (cfsj (ft) {ft) (ft) (fl) (ft) (ft) (days hh mm) (days hh mm) (ac �n) (min) � 1 J1 46 42 46 42 634 70 0 00 0 00 6 00 634 70 0 00 0 00 00 0 00 00 0 00 0 00 2 J2 37 93 37 93 640 40 0 00 0 00 6 00 640 40 0 00 0 00 00 0 00 00 0 00 0 00 LJ � , � � � � � � i �� 1 1 1 1 1 ' � � � ' � � � � � � � � � � � ' � , Pipe Input � SN Element Length Inlet Inlet Outlet Outlet Total Ave age P pe P pe P pe Mann ng s Entrance E UBend Add t onal In t al Flap No of ID In eA InveA invert Invert Drop Slope Shape Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels Elevat on Offset Elevation Offset He�ght (ft) (ft) (ft) (ft) (ft) (ft) ( / ) ( n) (in) (cfs) 1 Link 04 65 76 640 40 0 00 0 00 640 40 640 40 973 8400 Dummy 0 000 0 000 0 0130 0 5000 0 5000 0 0000 0 00 No t 2 Link 1 35 72 634 70 0 00 0 00 647 65 634 70 1776 8800 Dummy 0 000 0 000 0 0130 0 5000 0 5000 0 0000 0 00 No 1 � Pipe Results SN Element Peak T me of Des gn Flow Peak Flow/ Peak Flow Tra el Peak Flow Peak Flow Total T me Froude Reported � ID Flow Peak Flow Capac ty Des g Flow Veloc ty T me Depth Depth/ Surcharged Number Cond t on Occurrence Rat o Total Depth Rat o (cfs) (days hh mm) (cfs) (fUsec) (m n) (ft) (m n) � 1 Link 04 37 93 0 03 35 0 00 0 00 0 00 0 00 0 00 � 0 00 2 Link 7 46 42 0 03 30 0 00 0 00 0 00 0 00 0 00 0 00 � L� I�` � � �� LJI � L� � � � � �� I � �J S Pro�ect Description � F le Name PARCEL 5&6 POST SPF Descr pt on E\C3D2011\C 13D P o�ects\Sto ebndge(2017 )\Parcel 5\O50-pond dwg � Pro�ect Options Flow Un ts CFS Elevaton Type Elevaton Hyd ology Method SCS TR 20 � Time of Concentra�on (TOC) Method SCS TR 55 L nk Routing Method K nemat c Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analys s T me Penods NO � Analysis Opt�ons Start Analys s On Dec 15 201 t 00 00 00 End Malysis On Dec 19 2071 00 00 00 Start Report ng On Dec 15 2011 00 00 00 � Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 Ot 00 00 days hh mm ss Runoff (Wet Weather) T me Step 0 00 05 00 days hh mm ss Reporting Time Step 0 00 O5 00 days hh mm ss Ro [ ng T me Step 30 seconds ' Number of Elements ari Ra n Gages 1 � Subbasins 17 Nodes 6 Junctions 2 OuHalls 2 Flow D ers ons 0 , lnlets 0 Storage Nodes 2 L nks 10 Channels 0 P pes 2 � P mps 0 Onfices 4 We rs 4 Outlets 0 Pollutants 0 � Land Uses 0 Rainfall Details SN Ra n Gage Data Data Sou ce Rainfall Ra n State Cou ty Retum Rainfall Ra nfall � ID Sou ce ID Type Un ts Pe od Depth D stnbut o (years) (nches) 1 T me Ser es 1 INCH Intens ty nches North Ca olina Un on 1 7 00 Charlotte NC 6 h 2 yr � � �J � � ' �� Subbasin Summary SN Subbas n Area W e ghted Total Total Total Peak T me of ID C rve Ra nfall R noff Runoff Ru ff Concentrat on Number Volume (ac) ( n) ( n) (ac n) (cfs) (days hh mm ss) 1{watershed)AREA 3 OFF A 2 62 74 00 7 Ot 0 02 0 O6 0 03 0 00 18 58 2{watershed}AREA 3 OFF B 2 05 74 17 1 01 0 03 0 05 0 03 0 00 18 09 3{watershed} AREA 3 OFF C 1 25 75 67 1 01 0 04 0 OS 0 03 0 00 20 03 4{watershed}AREA 3 SUB A 18 19 81 43 1 01 0 11 1 95 1 98 0 00 78 55 5{watershed}AREA 3 SUB B 3 69 79 69 1 01 0 08 0 30 0 23 0 00 28 18 6{watershed] AREA 3 SUB C 3 14 79 75 1 O7 0 08 0 26 0 23 0 00 79 46 7{watershed).AREA 3 SUB D 2 74 78 68 1 01 0 07 0 19 0 13 0 00 28 03 8{watershed] AREA 4 OFF A 8 93 74 8t 1 Ot 0 03 0 27 0 14 0 00 27 53 9{watershed} AREA 4 OFF B 1 66 75 04 1 01 0 03 0 OS 0 03 0 00 30 03 70 {watershed}AREA 4 SUB A 17 45 82 93 1 Ot 0 13 2 34 2 12 0 00 28 37 11 {watershed)AREA 4 SUB B 2 31 79 28 1 01 0 08 0 18 0 14 0 00 23 11 a � , i � � � � � , � � � n L__J � � i 1 1 ' r� L� � J � � � LJ � i � � � t � t � � � � Node Summary SN Element Element Invert GroundlR�m Initiai Surcharge Ponded Peak Max HGL Max M n T me of Total Total T me ID Type Ele at on (Ma ) Wate Ele at o A ea Inflow Elevat�o Surcha ge Freeboard Peak Flooded Flooded Elevat on Elevat�on Atta ned Depth Atta ned Flood ng Volume Atta ned Occurrence (ft) (ft) (ft) (ft) (ft ) (cfs) (ft) (ft) (ft) (days hh mm) (ac i ) (m ) 1 Jun Ot Junction 635 00 642 00 635 00 0 00 0 00 0 OS 635 06 0 00 6 94 0 00 00 0 00 0 00 2 Jun 02 Junct on 640 50 644 50 640 50 0 00 0 00 0 10 640 59 0 00 12 41 0 00 00 0 00 0 00 3 Out O7 Outfail 640 40 0 17 640 49 4 out 02 outfail 634 70 0 60 634 76 5 Pond 1 Storage Node 635 00 642 00 635 00 0 00 1 95 635 28 0 00 0 00 6 Pond 2 Storage Node 640 50 645 00 640 50 0 00 2 20 640 93 0 00 0 00 Link Summary SN Elemenl Element From To (OuUet) Length Inlel Outlet Average D�ameler or Manning s Peak Design Flow Peak Flowl Peak Flow Peak Flow Peak Flow Total Time Reported ID Type (Inlet� Node invert Invert Slope Height Roughness Flow Capaaty Design Flow VelaGty Oepfh Deptl�l Surcharged Cond�6on Node Elevahon Elevabon Ra6o Toml Deplh RaUo � i , (fl) Ifll (ftl (�ol 1��1 (�SI 1�) I��cl 1�1 (��) 1 �nk-01 P�pe Jun-01 Out-02 45 00 635 00 634 70 0 6700 i5 000 0 0130 0 05 10 55 0 00 1 W 0 O6 0 05 0 00 Calcufated � 2 �nk-02 Pipe Jun-02 Out-01 1100 640 50 640 40 0 5900 15 000 0 Oi 30 010 9 91 0 Ot 129 0 09 0 07 0 00 Calcu�ated 3 Pi-0RIFACEt Orfice Pond-t Jun-01 635 00 635 00 2 000 0 05 4 Pi-0RIFACE2 Orfice Pond-t Jun-01 63500 63500 120011 000 5 P2-0rrfacel Orfice Pond-2 Jun-02 640 50 640 50 2 000 0 O6 � 6 P2-0rrface2 O�ice Pond 2 Jun-02 640 50 640 50 12 000 0 04 7 P1 EmergWier Weir Pond 1 Out-02 63500 634 70 000 8 Pi Weirt Weir Pond 1 Jun-01 63500 63500 000 9 P2 EmergWier Weir Pond 2 Out-01 640 50 640 40 0 00 ' 10 P2 Weir1 Weir Pond-2 Jun-02 640 50 640 50 0 00 I] � � � � � 1 � t ' � �' � � 1 , � , I I � � � �1 � ' r � � � � i � ' , � ' , Subbasin Hydrology Subbasm {watershed} AREA 3 OFF A Input Data Area (ac) 2 62 Weighted Curve Number 74 00 Rain Gage ID RAIN Composite Curve Number Area Soil Curve SoVSurfaceDescnption (acres) Group Number 75 / grass cover Good 2 62 C 74 00 Compos te Area 8 We ghted CN 2 62 74 00 Time of Concentrat�on TOC Method SCS TR 55 Sheet Flow Equation Tc (0 007 ((n Lf) 0 8)) /((P^0 5) (Sf 0 4)) Where Tc T me of Concentrahon (hr) n Mann ng s roughness Lf Flow Le gth (ft) P 2 yr 24 hr Ramfall (inches) Sf Slope (ft/ft) Shallow Concentrated Flow Equat on V 16 1345 (Sf 0 5) (unpaved surtace) V 20 3282 (Sf 0 5) (pa ed surface) V 15 0(Sf^0 5)(grassed waterway surface) V— 10 0(Sf^0 5) (nearly bare 8 untilled surface) V 9 0 (Sf^0 5) (cultivated straight rows surface) V 7 0 (Sf 0 5) (short grass pastu e surface) V 5 0 (Sf 0 5) (woodland surface) V 2 5 (Sf^0 5) (fo est w/heavy litter surface) Tc (Lf / � / (3600 sec/hr) W here Tc T me of Concentration (hr) Lf F�ow Le gth (ft) V Velocity (ftlsec) Sf Slope (ft/ft) Cha el Flow Equat on V (1 49 (R (213)) (Sf 0 5)) / n R Aq/Wp Tc (Lf / V) ! (3600 sec/h ) W here Tc T m f Co ce t at on (hr) Lf Flow Length (ft) R Hyd aul c Rad us (ft) Aq Flow Area (ft ) Wp Wetted Penmeter (ft) V Veloc ty (Wsec) Sf Slope (ft/ft) Mann ng s rough ess Sheet Flow Computat o s Mann ng s Roughness Flow Length (ft) Slope (%) 2 yr 24 hr Ra nfall ( n) Velocity (ft/sec) Computed Flow Time (m n) Shallow ConcenVated Flow Computations Flow Length (ft) Slope ( h) Surface Type Velociry (Nsec) Computed Flow Time (min) Total TOC (min) 18 97 Subbasm Runoff Results Totai Ra nfall (in) Total Runoff (in) Peak Runoff (cfs) Weighted Curve Number Time of Concentration (days hh mm ss) S ba ea Suba ea Suba ea A B C 4 0 00 0 00 100 0 00 0 00 3 0 00 0 00 3 50 0 00 0 00 010 000 000 17 46 0 00 0 00 Suba ea Subarea Suba ea A B C 318 0 00 0 00 471 000 000 Unpa ed U paved U paved 3 50 0 00 0 00 1 51 0 00 0 00 1 07 0 02 0 03 74 00 0001858 , � Subbasm {watershed} AREA 3 OFF A Rainfall Intensity Graph , z� � � ' � , Z € �__. __ ,9 � � � 1 r 18 � a -- -�-- � �-- � .._.... _..... _ ............. _.... ._.m._._..._.. .._., ..._._ �--�--_ _ .,_._ .-._... -, _ � �� .,.... 17 � d � 1 6 ,- — � � � 1 5 � j _. � _ `__ ��__�__a_�� `"" € � , � 4 ._ �� _ w _ _� __ � _� � ; ____ � _°_ 13 � � � � j i L � 2 _ € _ __ . _ _ _ � �� ____m _ € _ . _ .E � _ �.. .„ I � � � 11 � � � 1 i i + i { c � � _-l— � o s € � -� oa � r � � � � ° � � � �' � E � -�------ - os t � � � ' 0 5 { -- -- - 04 � � q � 0 3 -- -- _ _ _ �_ _ _ � �_..�� _ 02 k � � � � f _ � �� _____� � �1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 � Time (hrs) � Runoff Hydrograph o �� 0 , o 0 � o 0 0 , U 1 O� C 7 , �0 0 � ' ( 0 � ' a Q ' 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) , Subbasin {watershed} AREA 3 OFF B Input Data Area (ac) 2 05 Weighted Curve Numbe 74 17 Ra Gage ID RAIN Compos�te Curve Number Area Sod Curve SoiUSurface Descnpt on (acres) Group Number 75 / grass cover Good 2 03 C 74 00 Paved park ng 8 roofs 0 Ot C 98 00 Composite Area & We gh[ed CN 2 04 74 17 Time of ConcenVation Sheet Flow Computations Manning s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall ( n) Veloc ty (ft/sec) Computed Flow T me (m n) Shallow Concentrated Flow Computat o s Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ftlsec) Computed Flow Time (min) Total TOC (m n) 18 15 Subbasm Runoff Results Tota� Ra nfall ( ) Total Runoff ( n) Peak Runoff (cfs) Weighted Curve Number T me of Concent at o(days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 3 29 0 00 0 00 3 50 0 00 0 00 O 10 0 00 0 00 16 83 0 00 0 00 Subarea Subarea Subarea A B C 191 0 00 0 00 2 23 0 00 0 00 Unpaved Unpaved Unpaved 241 000 000 1 32 0 00 0 00 1 Ot 0 03 0 03 74 17 0001809 ' ' ' ' ' � ' � ' � , � � � , � ' ' ' Subbasin {watershed}.AREA 3 OFF B 2 2 1 1 1 1 1 1 .-. 1 t c � � ' m `c m � o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 wo °o 00 c �0 �0 0 0 ( 0 0 0 0 0 0 0 0 0 0 Ramfall intensrty Graph 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 T�me (hrs) Subbasin {watershed} AREA 3 OFF C Input Data A ea (ac) 1 25 We ghted Curve Numbe 75 67 Ra n Gage ID RAIN Composite Curve Number Area So I Curve Soil/Surface Descnption (acres) Group Number Paved parkmg & roofs 0 09 C 98 00 75 / grass cover Good 1 16 C 74 00 Composde Area & We ghted CN 1 25 75 67 Time of Concentration Sheet Flow Computat ons Man gs Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra fall (in) Velociry (fUsec) Computed Flow T me (mm) Shallow Co ce t ated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed Flow T me (m n) Channel Flow Computat o s Manning s Roughness Flow Le gth (ft) Channel Slope ( / ) Cross Section Area (ft ) WettedPermeter (ft) Veloc ty (ft/sec) Computed Flow Time (min) Total TOC (m n) 20 O6 Subbas�n Runoff Results Total Ra nfall ( n) Total Runoff (in) Peak Runoff (cfs) Weighted Curve Number T me of Co cent at o(days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 7 00 0 00 0 00 391 000 000 350 000 000 011 000 000 15 70 0 00 0 00 Subarea Subarea S barea A B C 309 0 00 0 00 2 33 0 00 0 00 Unpaved Unpaved Unpaved 246 000 000 209 000 000 Suba ea Suba ea Suba ea A B C 03 0 00 0 00 525 0 00 0 00 1 19 0 00 0 00 5 000 000 8 32 0 00 0 00 386 000 000 2 27 0 00 0 00 � o� 0 04 0 03 75 67 0 00 20 04 ' � ' ' ' ' , � , � , ' � ' ' , ' � ' Subbasm {watershed) AREA 3 OFF C 2 2 1 1 t 1 1 1 .-. 1 t c � � ' m c m � 0 0 0 0 0 0 0 0 0 Ramfall Intensity Graph o� �� 0 0 0 0 0 0 0 0 0 0 wo °o 00 C �0 �0 0 0 0 0 0 0 0 0 0 0 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbas�n {watershed} AREA 3 SUB A Input Data Area (ac} 18 19 Weighted Curve Number 81 43 Rain Gage ID RAIN Composite Curve Number Area So I Curve SoiUSurface Descnpt on (acres) Group Number 75/ grass co er Good 12 53 C 74 00 Paved parkmg & roofs 5 62 C 98 00 Composite Area & Weighted CN 18 15 81 43 Time of Concentrat�on Sheet Flow Computations Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (in) Veloaty (ft/sec) Computed Flow Time (m n) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Velociry (ft/sec) Computed Flow Time (m n) Channel Flow Computat ons Mann ng s Roughness Flow Length (ft) Channel Slope ( / ) Cross Section Area (ft ) Wetted Per meter (ft) Veloc ty (ft/sec) Computed Flow T me (m n) Total TOC (m ) 18 92 Subbasm Runoff Results Total Ra nfall ( ) Total RUnotf ( n} Peak Runoff (cfs) Weighted Curve Number T me of Co centrat n(d ys hh mm ss) Subarea Subarea Subarea A B C 0 40 0 00 0 00 100 0 00 0 00 391 000 000 3 50 0 00 0 00 0 11 0 OQ 0 UO 1570 000 000 Subarea Subarea Suba ea A B C 308 0 00 0 00 2 33 0 00 0 00 Unpaved Unpaved Unpaved 2 46 0 00 0 00 209 000 000 Subarea Subarea Suba ea A B C 013 0 00 0 00 793 0 00 0 00 1 74 0 00 0 00 7 0 00 0 00 103 000 000 11 69 0 00 0 00 1 13 0 00 0 00 1 01 0 11 1 98 St 43 0001855 ' ' Subbasm (watershed}.AREA 3 SUB A ' 2^ 2 1 � ' � 1 , ' 1 .-. t r ' " 1 1 m `c m � 0 ' 0 0 0 � 0 0 0 � o 0 Ra�nfall Intensity Grapn � _ t � �w _ t i � �,�� _ _ f b T---�--�- � ( � � _ _ _ � _ �;_ ..._ _ ,-- _._�_ _ �____ _ � i �7 �� __�_ _ __� � �_,. �. I { ` i i E � � _.�.._. ..... { i � � 1 � _ � -- ! 2 � � � � � _ ____r __ __._ _ _ _ � _ � i � _ _ f�� _� __ � _ � � �_ t E i �� _ �_� __ _ _ 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 , Time (hrs) , Runoff Hydrograph 2' ' f t t 1 � ' 1 1 , N � °_. i 0 C 7 , � 0 � � ' O � 0 0 , O 0 E 7 --�- - - t t � 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) ' Subbasin {watershed} AREA 3 SUB B Input Data A ea (ac) 3 69 We ghted Curve Numbe 79 69 Ra n Gage ID RAIN Composite Curve Number Area So 1 Curve So I/Surtace Descr pt on (acres) G oup Number 75 / grass cover Good 2 81 C 74 00 Paved park ng 8 roofs 0 87 C 98 00 Compos te Area & W eighted CN 3 68 79 69 Time of Concentrat�on Sheet Flow Comp tat o s Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall (in) Veloc ty (ft/sec) Computed Flow T me (m n) Shallow Concent ated Flow Computat ons Flow �e gth (ft) Slope ( / ) Surface Type Veloc ty (fUsec) Computed Flow T me (m ) Total TOC (m n) 28 30 Subbasm Runoff Results Total Ra nfall ( ) Total Runoff ( n) Peak Runoff (cfs) We ghted Curve Numbe T me of Conce t at on (days hh mm ss) Suba ea Suba ea Suba ea A B C 4 0 00 0 00 100 0 00 0 00 2 0 00 0 00 3 50 0 00 0 00 0OS 000 00� 20 53 0 00 0 00 Suba ea Subarea Subarea A B C 727 0 00 0 00 94 0 00 0 00 Unpaved Unpaved Unpa ed 1 56 0 00 0 00 7 77 0 00 0 00 1 01 0 08 0 23 79 69 0002818 ' ' Subbasm {watershed} AREA 3 SUB B , 2 .. 2 1 ' 1 1 1 ' ' , ,.. , L ' �"' ' � m C N � 0 , 0 0 0 � 0 0 0 � o 0 � � 0 24 0 23 0 22 ' 021 02 0 19 ' 0 18 0 17 0 16 0 15 � � 0 14 � 0 13 w 0 12 0 � 01t � � 01 0 09 0 08 ' 0 07 0 O6 0 OS 0 04 , 0 03 0 02 001 ' , f � _ _, _ t � �. _..._.._,,,, i i � { � � � C �_ ! � f � � � —�� Ra�nfall Intens�ty Graph 7 � I �� _ . � _�._,_ f € _.. ...., .....,. ,.r, _.... _ _ -'°'._____ � �_ _... � 1 � � � � � i { � { � I ( � (� 1 � � _ � _ i l 1 1 --- # ---°.-.�.� ,W ,�.-� „--_, .�._.�..�, 1 1 d " -- -� _ _---� � L . . _ .- _ �.6 �. _ I � � � � � � t I i � � € f r t � � T __ 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph C I � 1 i i 5 �U tb 10 25 30 35 40 45 50 55 60 65 70 �5 80 85 90 95 Time (hrs) Subbasin {watershed} AREA 3 SUB C Input Data Area (ac) 3 14 Weighted Curve Number 79 75 Rain Gage ID RAIN Compos�te Curve Number Area Sol Curve So USurface Descr pt o (ac es) Group Number 75 / grass cover Good 2 38 C 74 00 Pa ed parking 8 roofs 0 75 C 98 00 Compos te Area 8 W e ghted CN 3 13 79 75 Time of Concentrat�on Sheet Flow Computat ons Mann ng s Roughness Flow Length (ft) Slope ( / � 2 yr 24 h Ra nfall ( n) Velocity (ft/sec) Computed Flow T me (min) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ry (fUsec) Computed Flow T me (min) Total TOC (m n) 19 77 Subbasin Runoff Results Total Rainfall ( n) Total Runoff (m) Peak Runoff (cfs) Weghted Curve Numbe Time of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 26 000 000 350 000 000 0 09 0 00 0 00 18 49 0 00 0 00 Subarea Subarea Subarea a a c 190 0 00 0 00 2 33 0 00 0 00 Unpa ed Unpaved Unpa ed 246 000 000 1 29 0 00 0 00 1 01 0 08 0 23 79 75 0001946 , , ' ' ' ' � � � ' , ' , , , ' , ' , Subbasm {watershed} AREA 3 SUB C � 2 1 1 7 � i 1 t � c � � � � � m � 0 0 0 0 0 0 0 0 0 I � 3 --- 3 / ---- s �■ o za 0 23 0 22 021 02 0 19 0 18 0 17 0 16 0 15 ,.., 0 14 w v 0 13 � 0 72 0 � 0 tt � 01 0 09 0 OS 0 07 0 06 0 05 0 04 0 03 0 02 001 Ramfall Intensity Graph l k �� _____........�t.. � � ._._. ___.w�__�__ ... � ¢ � � _�_.„. _ _____ � � _� _ i � i € � f t � 4 � � � f 1 _ � _ � 1 ry �� I 1 -- _ _ _ __ __.� � _ 3 i {--------�------a--- _ �_� _ � � _ - } I f � � i { _ _ � t _._._�. ...... � 1 _ �_____ «—...—. .,,�___.. _ _,.. _ � ,-- _ __v_ � _ _ !_ _ �, ____ _ l � � � [ 1 _ _ .W , _� � � 1 _ �� _ y I _ �-__ _ _ � __�__ � _. ,, _� _ 1 � � -- -}---__--_- � .�� _ s � t 1 � _ 1� �.___� � � -I 5 70 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph I - �-- -, � � �v ,a �u za su so ao ab bp 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasin {watershed} AREA 3 SUB D Input Data Area (ac) 2 74 We ghted Curve Number 78 68 Ra n Gage ID RAIN Composite Curve Number Area Sol Curve So I/Surface Descnpt on (ac es) Group Number > 75°/ grass co er Gaod 2 20 C 74 00 Paved park ng & roofs 0 53 C 98 00 Composde A ea 8 We�ghted CN 2 73 78 68 Time of Concentration Sheet Flow ComputaUons Manrnngs Roughness Flow Lenglh (ft) Slope ( h) 2 yr 24 hr Ra nfall (in) Veloc ry (ft/sec) Computed Flow Time (m n) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed Flow T me (min) Total TOC (m n) 28 O6 Subbasin Runoff Results Total Ra nfall ( n) Total R noff ( n) Peak Ru off (cfs) We ghted C rve Number T me of Concentration (days hh mm ss) Subarea Subarea Suba ea A B C 4 000 000 100 0 00 0 00 7 000 000 3 50 0 00 0 00 0 06 0 00 0 00 27 09 0 00 0 00 Subarea Subarea Suba ea A B C 274 0 00 0 00 8 52 0 00 0 00 Unpaved Unpaved Unpa ed 471 000 000 0 97 0 00 0 00 1 Ot 0 07 0 13 78 68 0 00 28 04 ' , Subbasm {watershed} AREA 3 SUB D Rainfall Intensity Graph ' 22 _ � � j 21 fi 2 � 19 _ _ _ _ _ , .__ _ _ __ �._ _ _ _ i � 8 _ _ � _ �_ �_ __ __ _ __ __ _�. ,, _ _ ,_ _� � _ � __ ,s x � � � { ' ' 15 _ ( I 1 ( � � 14 � -� .-. 1 3 t L ( � , v 12 � �� ( t 1 � C� ,.. ...._ ..�.� ,-`- --'{ .._ ...._ ..,. ..�---, �.. R � � Q 9 � i ' � � � � W ,� � $ - ---� -- --�.-- � �._ � __..__�.___.,..„.,..__,___ _ � 7 � � p X € os � r � 05 oa i 03 I 02 # � _ _ � _ _ ,-- _ 01 -- t i 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 , Time (hrs) , Runoff Hydrograph 0 ' o � 0 , o 0 i 0 ' Ni vo o� �o ' �( 0 ( 0 ' ( 0 ( 0 ' ( 0 C 0 , 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 T�me (hrs) , Subbasin {watershed} AREA 4 OFF A Input Data Area (ac) g g3 We ghted Curve Number 74 81 Ram Gage ID RAIN Composite Curve Number Area Sol Curve Sol/Surface Descnpton (acres) Group Number Paved pa king & roofs 0 29 C 98 00 75 / grass cover Good S 21 C 74 00 Compos te Area 8 Weighted CN 8 50 74 81 Time of Concentration Sheet Flow Computat ons Manning s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra fall ( n) Veloc ty (ft/sec) Computed Flow Time (m n) Shallow Concentrated F�ow Computahons Flow Length (ft) Slope ( / ) Surface Type Velocity (fUsec) Computed Flow T me (min) Total TOC (m n) 27 89 Subbasm Runoff Results Total Ra nfall ( n) Total Runoff ( ) Peak Runoff (cfs) We�ghted Curve Number T me of Conce t at on (days hh mm ss) Subarea Suba ea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 02 0 00 0 00 3 50 0 00 0 00 0 O6 0 00 0 00 26 88 0 00 0 00 Subarea Subarea Subarea A B C 144 0 00 0 00 2 17 0 00 0 00 Unpa ed Unpa ed Unpaved 2 38 0 00 0 00 7Ot 000 000 1 01 0 03 0 14 74 81 0 �� 27 53 ' , Subbasin {watershed}.AREA 4 OFF A Ramfall Intensity Graph ' Z 2 �°_ E 21 - � € d i } ; 2 � 1 9 � ____ � . � _ � _ „ �___�_ , _ _ � _ �_ f � _ � � � � _ � _ � _ � -- _°,____ _� — � --a----__�_,_,_ 18 �- � 1 1 f ( 1 7 - _ u .._____ � _____. _ _ l � � E �� 16 � � � I � � � ' 15 � i � i ,a — ¢ �� ,-. 1 3 � r E � � � 1 , v 12 3 - � � �� i � � c7 --- -�---.- � � _ _ _ _ � _ � � _ ,- - � � � w � € � � 09 � � � m _ �'_--- � ___ � 08 --s-.. ,�_,___ � __ � � ___ , _ �. 07 - � � 06 � � r , 05 � f i # � 04 � t t 1 } � 03 { 02 � � � � � m_ _. _ _ __ __ _ _ 01 - � __ � 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 � Time (hrs) ' Runoff Hydrogreph 0 ' o 0 ' o 0 0 ' �� o o, � 30 � � ( � � ' ' 0 Q � ( 0 � � � 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 T�me (hrs) , Subbasin {watershed} AREA 4 OFF B Input Data Area (ac) 1 66 We ghted Curve N mbe 75 04 Ra n Gage ID RAIN Composite Curve Number A ea So I Curve SoVSurface Desc pt�on (acres) Group Number Pa ed parking 8 roofs 0 07 C 98 00 75 / grass co er Good 1 58 C 74 00 Compos te Area 8 W e ghted CN 1 65 75 04 Time of Concentration Sheet Flow Computations Mann ng s Roughness Flow Length (ft) Slop ( / ) 2 yr 24 hr Ra nfall (in) Velo ry (fUsec) Computed Flow Time (m n) ShalloH Conce trated Flow Computat ons Flow Length (ft) SbpE ( / ) Surf ce Type Velouty (ftlsec) Com��uted Flow T me (m n) Total TOC (m ) 30 OS Subbasm Runoff Results 7otal R 3 nfall ( n) Total Ri noff ( n) Peak R�noff (cfs) W eightc d C rve Numbe T me of Co centrat on (days hh mm ss) Subarea Suba ea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 0 00 0 00 3 50 0 00 0 00 0 06 0 00 0 00 27 09 0 00 0 00 Subarea Subarea S barea A B C 441 0 00 0 00 2 39 0 00 0 00 Unpa ed Unpaved Unpaved 2 49 0 00 0 00 2 95 0 00 0 00 1 Ot 0 03 0 03 75 04 0003003 � � Subbas�n {watershed} AREA 4 OFF B Rainfall Intensrty Greph � 22 � _ _ _ __ 2 1 � � -- i 2 � } 1 9 _ __ � _. _ _� ____ _. � � _ _ _ _ � 1 8 � _ _ — _ �— � — � ----- _ 17 � � f ( __�� j �s �� } � 15 � » — � � I 1 4 � _____. �__. V_W_W__�� _ q .-. 1 3 � — � t s � " 12 ( _ _ �� _�� _ _ m �� ! I C� _..._� ......�..........m.. � ...... ..._. _ _ ..._. ..� N � 09 � � � � � 8 � _ _�-�—�-� --- �_,. �� . ...�.. _ � ._ _ _ � __ ,— _... 07 t � _W____ ___________r ___ _ � _ 06 � � � t � 05 � _ __ ,__ __ ___ 04 � � 0 3 �- ----°- ----� € 02 f � __ � �,- � _ _ � _ , _ O 1 — � — � _� 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 ' Time (hrs) � Runoff Hydrograph I 0 0 � 0 0 0 0 0 � 0 0 0 � 0 .�.0 �0 00 c �0 � �0 0 0 ( � 0 0 0 0 , 0 0 0 0 0 � 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) ' Subbas�n {watershed� AREA 4 SUB A Input Data Area ( �c) 17 45 We ghted Curve Number 82 93 Ra n Gage ID RAIN Composite Curve Number Area So I C rve SoiUSurface Descnpt�on (acres) Group Numbe 75 / grass cover Good 10 95 C 74 00 Paved parkmg 8 roofs 6 48 C 98 00 Compos te Area & Weighted CN 17 43 82 93 Time of Concentration Sheet Flow Computations Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (in) Veiocity (ft/sec) Computed Flow Time (min) Shallo Co centrated Flow Computat ons Flow Length (ft) Slop ( �) Surf �ce Type Velo ty (ft/sec) Computed Flow T me (min) Channel Flow Computations Manning s Roughness Flow Length (ft) Cha nel Slope ( / ) Cross Sed on Area (ft ) Wetted Perimeter (ft) Vela ty (ft/sec) Computed Flow T me (m ) Total T�C (m n) 28 53 Subbasm f2unoff Results Total Ra fall ( ) Total Runoff (in) Peak Runoff (cfs) Weight�d Curve Number T m of Co ce t at n(d y hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 5 0 00 0 00 3 50 0 00 0 00 0 07 0 00 0 00 23 04 0 00 0 00 Subarea Subarea Subarea A B C 354 0 00 0 00 1 26 0 00 0 00 Unpaved Unpaved Unpaved 1 81 0 00 0 00 3 26 0 00 0 00 Subarea Subarea Subarea A B C 013 0 00 0 00 712 000 000 08 000 000 1 76 0 00 0 00 471 000 000 5 32 0 00 0 00 2 23 0 00 0 00 1 01 0 13 2 12 82 93 0 00 28 32 t � Subbas�n {watershed} AREA 4 SUB A ' Z 2 i � ' i , � ' 1 .� 1 L � `-' 1 m � `c m � 0 � 0 0 0 ' o 0 0 � o 0 � 1- 23 22 21 � Z ,s is � �� s �s ia ' y 13 � 12 C �� 7 � � � 09 08 07 � 06 05 04 1 03 �2 01 � , Ramfall Intensity Graph � _ � _ ___ _ _ �__ _� � � �� _ � _ _. �� _ _ � � 3 t _ .. � 1 t i t ____�� _ .� _ _ _ � � � � __ __ _ ( __m___ � ___._�__wm_. _ _ � , _ _ � 3 1 L � f t i ( � _ �- _ _ f i �_ __._ _ _.__ .__��_.. f � E m� _ �_�. �_ � i � � ¢ _ 1 ! � _" � �_ { p�.. �......_.. _ i � _____ �. � _ � � ---�-- -- °--------�-- --; I � ( W � � 1 � � _ � b lU 1S 10 15 30 35 40 45 50 55 60 65 70 75 SO 85 90 95 Time (hrs) Runoff Hydrograph � f r � � T i � � r o �v ,o �u z5 su so ao as 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasin {watershed} AREA 4 SUB B Input Data A ea (ac) 2 31 We ghted Curve Number 79 28 Ra n Gage ID RAIN Composite Curve Number Area Sol Curve So I/Surface Desc pt on (acres) Group Numbe� 75 / grass cover Good 7 81 C 74 00 Paved park ng & oofs 0 51 C 98 00 Compos te Area 8 W e ghted CN 2 32 79 28 T�me of Concentration Sheet Flow Computat o s Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall (in) Velociry (ft/sec) Computed Flow Time (m ) Shallow Conce t ated Flow Computations Flow Length (ft) Slope ( / ) Surtace Type Velocity (ftlsec) Computed Flow T me (m n) Channel Flow Computahons Mann ng s Roughness Flow Length (fl) Channel Slope ( / ) Cross Sect on Area (ft ) Wetted Pe meter (ft) Velociry (ft/sec) Computed Flow T me (m ) Total TOC (m n) 23 19 Subbasin Runoff Results Total Ra nfall ( n) Total Ru off ( n) Peak Runoff (cfs) We ghted Curve Number T me of Co ce t t (days hh mm ss) Suba ea Subarea Subarea A B C 4 000 000 100 0 00 0 00 27 000 000 3 50 0 00 0 00 0 09 0 00 0 00 1821 000 000 Subarea Subarea Subarea A B C 195 0 00 0 00 2 15 0 00 0 00 Unpaved Unpaved Unpaved 2 37 0 00 0 00 1 37 0 00 0 00 Subarea Subarea Subarea A B C 03 0 00 0 00 913 0 00 0 00 1 42 0 00 0 00 5 0 00 0 00 8 32 0 00 0 00 421 000 000 361 000 000 1 01 0 06 0 14 79 28 0002311 � 1 Subbasm {watershed} AREA 4 SUB B Ramfall Intensity Graph � 22 �� _ ! 21 � z � � 1 9 ---- _ _ _�--_ � _ . � ,� _ _ _ --- __ r �. � � �� 8 __ � _ � _ —�_ _ _ _.,-- _ 17 ----- {---° _`t- � t 3 16 � � - � 1 # 15 € � f j � a -- r t ... �s � ' E � t � � 12 -« � � - _ m �� `c � _._ __ �_ � _ _ _ - _ . _ . . _ _ m � � 09 � � � _ _ . _ _ _ , _ v �__�_ _ —v-- _ .� 0 8 ---- �-- 07 � 06 � � 05 1 � 04 03 ; � � �� _ __ __ _ _ o� — T 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 � Time (hrs) � Runoff Hydrograph 0 � I 0 0 i � o 0 i , o wi °o `o� c �0 � ( 0 ( 0 , ( 0 ( 0 � ( 0 ( 0 � 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) ' Junction Input SN Element Invert Ground/Rim G ound/Rim Inrtiai InAial Surcharge Surcharge Ponded M mmum ID Elevat on (Ma ) (Max) Water Water Elevat on Depth Area P�pe Elevation Offset Elevation Depih Cover (fl) (ft1 (ft) (fl1 (ft) (ft) (ft) (ft ) ON 1 Jun Ot 635 00 642 00 7 00 635 00 0 00 0 00 642 00 0 00 0 00 2 Jun-02 640 50 644 50 4 00 640 50 0 00 0 00 644 50 0 OD 0 00 � � � � � �� j I L1� � � � � Junction Results � SN Eleme t Peak Peak Max HGL Max HGL Max Min Average HGL A erage HGL Time of Time of Total Total Time ID I flow Lateral Elevation Depth Surcharge Freeboard Elevation Depth Max HGL Peak Flooded Flooded Inflow Atta ned Attained Depth Attained Atta ned Atta ned Occurrence Flood ng Volume Attained Occurrence , (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh mm) (days hh mm) (ac m) (m n) 1 Ju Ot 0 05 0 00 635 O6 0 06 0 00 6 94 635 04 0 04 0 06 26 0 00 00 0 00 0 00 2 Ju 02 0 10 0 00 640 59 0 09 0 00 12 41 640 54 0 04 0 O6 31 0 00 00 0 00 0 00 � , � � � � � l' � � � � � � � � � � Pipe Input SN Element Le gth Inlet I let O Uet Outlet Total Average Pipe Pipe P pe Man ng s Entrance Ex UBend Add t o al I it al Flap No of � ID I ert In ert I ert In ert D op Slope Shape Diameter or W dth Ro ghness Losses Losses Losses Flow Gate Barrels Elevation Offset Elevation Offset Height (ft) (ft) (ft) (ft) (ft) (ft) ( / ) ( n) (in) (ds} 1 Lmk 01 45 00 635 00 0 00 634 70 0 00 0 30 0 6700 CIRCULAR 15 000 15 000 0 0130 0 5000 0 5000 0 0000 0 00 No 2 � 2 L nk 02 77 00 640 50 0 00 640 40 0 00 0 10 0 5900 CIRCULAR 75 000 15 000 0 0130 0 5000 0 5000 0 0000 0 00 No 2 � � � � � LJ � � I � ' � Li � � � , r � �J � , � � 1 � � � � 1 � � � , � P�pe Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow CapaCty Des gn Flow Velociry Time Depth Depth/ Surcharged Number Condihon Occurrence Ratio Total Depth Raho (cfs) (days hh mm) (cfs) (fUsec) (m n) (ft) (m n) 1 Link 01 0 OS 0 O6 27 10 55 0 00 1 07 0 70 0 06 0 05 0 00 Calculated 2 Link 02 0 70 0 O6 31 9 91 0 01 1 29 0 22 0 09 0 07 0 00 Calculated Storage Nodes Storage Node Pond 1 Input Data InveA Elevation (ft) Ma (R m) Elevat on (ft) Max (Rim) Offset (fl) In t ai W ate Elevation (ft) In t al Wate Depth (ft) Ponded A ea (ft ) Evaporat on Loss Storage Area Volume Curves Sto age Curve Pond 1 Stage Sto age Storage Area Volume t) (ft ) (ft ) 0 25043 0 000 1 29748 27395 50 4 36042 126080 50 635 00 642 00 7 00 635 00 0 00 0 00 0 00 r � r � � � � � � � � r � � � � i � 1 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 � 2 m m y � 1 1 1 1 1 � � � 0 0 0 0 0 0 0 0 0 Storage Area Volume Curves Storage Volume (ft ) o �o 00o zo 00o ao 00o ao 00o so 00o so 000 �o 00o ao 00o eo 000 �oo 000 ��o 000 �zo 000 4 i 4 9 - -- - - -- -- � ---- t - - - - 3 8 S � 3 '7 3 6 � -- ,-_ —� � g 5 3 4 - --- �- — 3 3 ! 3 _� 2 -�-- - 3 � i --�-- - - - --�-- -- - - �- 3 3 � 3 9 --- - � --j--- - --i--- 2 g � � � - - - - -- --� __ 2 7 � 2 s - ---- -- - � -- - � - 2 5 y 4 � p 3 — �-1 � -{ - -- - �-- - 2 2 � � 2 � �--- - - -- - -s— 2 Z � 2 9 -+-- - -- - - -- -- - - -- -' 1 i � -- --- -- � -- - --�--- - _ � _� _ _ -� _ W ; � 6 --- --�----- -- - - ---- - - -- -�---- - - 1 5 � _"` � � - - -� --Y- -- - 'I 4 � 3 3 - -- - j � - - - - - 1 2 � 1 � 1 � --_ _ _ _ _ _ _ _, _ 1 _ _. _ _ � 9 0 i � 8 - �r- - - - - - --- - - -- - -- - 0 � _ � ___ �_ _ _� _ __ _ _�_ _ _ o s__ _ _� _ __ _ �__ __ _ _ __ o 5 ____ �_ _____ __� __ _ _�_ __ _ _ _ _ __ o 4 � 0 3 -- � - -�- ---[-- - - - -- -- - 0 Z- -- - -- -�-- -- � -- - - r - 0 � 0 � - -- 0 z� uuu zti uuo n uoo zs 000 Z9 000 30 000 31 000 32 000 33 000 34 000 35 000 36 001 Storage Area (ft ) — Storage Area — Storage Volume 9 8 7 6 5 4 3 2 1 9 B 7 6 5 4 3 2 1 w d C1 9 N B 7 6 5 4 3 2 1 9 B � 6 5 4 3 2 t Storage Node Pond 1 (continued) Outflow Weirs SN Etement We Flap C est Crest Length Wei Total Discharge ID Type Gate Ele at on Offset He ght Coeffc e t (ft) (ft) (ft) (ft) 1 P7 EmergW er Trapezo dal No 637 60 2 60 20 00 1 00 3 33 2 Pt We r1 S de Flow No 636 50 1 50 28 00 1 00 0 61 Outflow Onfices SN Element O fce Onfice Flap Circular Rectangular Rectangular Orifce Or�ce ID Type Shape Gate Onfce Orfice Onfice Invert Coeffcent Diameter Height W dth Elevat on (m) pn) (in) (ft) i P1 ORIFACE7 Side CIRCUTAR No 2 00 635 00 0 61 2 P1 ORIFACE2 Side Rectangular No 12 00 24 00 635 30 0 63 Output Summary Results Peak Inflow (cFs) Peak Lateral Inflow (cfs) Peak OutNow (cfs) Peak E fltraton Flow Rate (cfm) Max HGL Elevat on Atta ned (ft) Max HGL Depth Atta ned (ft) A erage HGL Elevation Attained (ft) Average HGL Depth Atta ned (fl) Time of Max HGL Occurrence (days hh mm) Total Exf Itrat on Volume (1000 ft) Total Flooded Volume (ac n) Total Time Flooded (m n) Total Rete t on Time (sec) 1 95 1 95 0 05 0 00 635 28 0 28 635 12 0 12 0 O6 26 0 000 0 0 0 00 � � � � � �� Storage Node Pond 2 Input Data Invert Elevaton (ft) Max (R m) Elevation (ft} Max (Rim) Offset (ft) Initial Water Elevat�on (ft) Imtial Water Depth (ft) Ponded Area (ft ) E aporaton Loss Storage Area Volume Curves Storage Curve Pond 2 Stage Storage Storage Area Volume (ft) (ft ) (ft ) 0 20029 0 000 4 27373 94804 00 640 50 645 00 4 50 640 50 0 00 0 00 0 00 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 � 2 m rn :°. � N � 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 Storage Area Volume Curves Storage Volume (fP) 0 10 000 20 000 30 000 40 000 50 000 60 000 70 000 80 000 90 000 4 4 9 -- - - - -- --- -- --- --�- - -- -�-- - - - 3 8 � 3 7 3 6 - 3 5 � 3 4 3 3 3 2 - - 3 1 - - 3 3 I 3 9 --- -- 2 8 - - -- �- � - 2 7 2 6 --- -- - -- - - - ---�'--- � - - - Z 5 � 2 I 4 2 3 � 2 2 2 'I � 2 2 ! � Z 9 ---- --- -- � � - -- 1 8 -- -- .— � i _ - � 7 � 1 6 - t -�-- - 1 5 - - - --- � -- - - ---- - - 1 4 1 3 - - - - - --- - --- - - - - - - -� 'I 2 1 1 1 t � - - - - - - ->�-- - - 1 9 0 8 -- - - -...^ �-�_�_�_ 0 7 - - - - . .�___ - - -- 0 6 -- - ------- - � - - - 0 5 - - - --- �- - - 0 4 0 3 - -- - - - --t--- ---`---- - - 0 ! Z- -- - - - -- - --- -�---- - -r- -- - - - 0 � 0 0 0 20 000 21 000 22 000 23 000 24 000 25 000 26 000 27 000 Storage Area (ft ) - Storage Area - Storage Volume 9 B 7 6 5 4 3 2 1 9 B 7 6 5 4 3 2 1 � m o� 9 :°• N B 7 6 5 4 3 2 1 9 B � 6 5 3 3 2 t � � � , � � � � � � � � � � � � � � i Storage Node Pond 2 (contmued) Outfiow Weirs SN Element Wer Flap ID Type Gate 1 P2 Eme gW e Trapezodal No 2 P2 Weir1 S de Flow No Crest Crest Elevabon Offset (ft) (ft) 643 60 3 10 643 00 2 50 Length WeirTotal Discha ge Height Coeffic�ent ift) ift) 20 00 1 00 3 33 26 00 10 00 0 61 Outflow Onfices SN Element Onfce Orifce Fiap Circular Rectangular Rectangular Orfce Orfce ID Type Shape Gate Onfice O fce Onfce In ert Coeffcent Diameter Height W dth Ele at on _ (in) (in) ( n) (ft) 1 P2 Onfacel S de CIRCULAR No 2 00 640 50 0 61 2 P2 Oriface2 Side Rectangula No 12 00 24 00 640 90 0 63 Output Summary Results Peak Inflow (cFs) Peak Lateral Inflow (cfs) Peak Outflow (cfs) Peak Exfltrat on Flow Rate (cfm) Max HGL Elevation Attained (ft) Max HGL Depth Attained (ft) Average HGL Ele at on Atta ned (ft) Average HGL Depth Atta�ned (ft) Time of Max HGL Occu ence (days hh mm) Total Exf It at on Volume (1000 ft ) Total Flooded Volume (ac ) Total Time Flooded (min) Total Retention Time (sec) 2 20 2 20 0 10 0 00 640 93 0 43 640 65 0 15 0 06 31 0 000 0 0 0 00 Pro�ect Description File Name PARCEL 5&6 POST SPF Desc pt o E\C3D2011\C v I 3D Pro�ects\Stoneb dge(2011)\Parcel 5\O50 po d dwg Pro�ect Options Flow U ts CFS Ele at on Type Ele at on Hydrology Method SCS TR 20 T me of Concentrat o(TOC) Method SCS TR 55 Link Rout ng Method Kinematic Wa e Enable Overflow Pond ng at Nodes YES Sk p Steady State Malys s T me Penods NO Analysis Options Start Analys�s On Dec 15 2011 00 00 00 End Analys s On Dec 19 2011 00 00 00 Start Report ng On Dec 15 2011 00 00 00 Antecedent Dry Days 0 days Ru off (Dry Weather) Time Step 0 Ot 00 00 days hh mm ss Runoff (Wet Weather) Time Step 0 00 05 00 days hh mm ss Report ng Time Step 0 00 05 00 days hh mm ss Routing T me Step 30 seconds Number of Elements oty Ram Gages 1 Subbasins 71 Nodes 6 Junctons 2 Outfalls 2 Flow Diversions 0 lnlets 0 Storage Nodes 2 L nks 10 Channels 0 P pes 2 Pumps 0 Onfices 4 We rs 4 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details SN Ra n Gage Data Data So ce Ra fall Ra State County Retum Rainfall Ra nfall ID Source ID Type U ts Period Depth D str but on (years) ( nches) 1 Time Senes 1YR6HR Cumulat e ches North Ca ol a U on 7 2 72 Charlotte NC 6 hr 2 yr � � � � � �� , � � � � � � � l__J ' � � � Subbasin Summary SN Subbas n Area We ghted Total Total Total Peak T me of ID Curve Rainfali Runoff Runoff Runoff Concentration Number Volume (ac) ( n) ( n) (ac n) (cfs) (days hh mm ss) 1{watershed} AREA 3 OFF A 2 62 74 00 2 12 0 41 1 07 1 33 0 00 18 58 2{watershed}AREA 3 OFF B 2 OS 74 17 2 12 0 41 0 85 1 08 0 00 78 09 3{watershed}AREA 3 OFF C 1 25 75 67 2 12 0 47 0 58 0 73 0 00 20 03 4{watershed} AREA 3 SUB A 18 79 81 43 2 12 0 70 12 77 17 78 0 00 t8 55 5{watershed} AREA 3 SUB B 3 69 79 69 2 12 0 62 2 30 2 56 0 00 28 18 6{watershed}AREA 3 SUB C 3 74 79 75 2 12 0 63 1 97 2 64 0 00 19 46 7{watershed) AREA 3 SUB D 2 74 78 68 2 12 0 58 1 59 1 75 0 00 28 03 8{watershed)AREA 4 OFF A 8 93 74 87 2 12 0 44 3 88 4 04 0 00 27 53 9{watershed}.AREA 4 OFF B 1 66 75 04 2 72 0 44 0 73 0 74 0 00 30 03 10 {watershed}AREA 4 SUB A 17 45 82 93 2 12 0 78 13 53 15 44 0 00 28 31 11 {watershed}AREA 4 SUB B 2 31 79 28 2 12 0 61 1 40 1 72 0 00 23 11 � Node Summary SN Element Element Invert Gro ndlR m I t al Surcharge Ponded Peak Max HGL Max M n T me of Total Totai Time � ID Type Ele at on (Max) Water Ele at on Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Ele at o Atta ned Depih Atta ned Flood ng Vol me Attained Occurcence (ft) (ft) (R) (ft) (ft ) (cfs) (ft) (ft) (ft) (days hh mm) (ac n) (m n) � 1 Jun 01 Junction 635 00 642 00 635 00 0 00 0 00 4 53 635 57 0 00 6 43 0 00 00 0 00 0 00 2 Jun 02 Junct on 640 50 644 50 640 50 0 00 0 00 7 21 641 29 0 00 11 71 0 00 00 0 00 0 00 3 Out 01 Outfall 640 40 8 11 641 19 4 Out 02 Outfali 634 70 9 59 635 27 5 Pond t Storage Node 635 00 642 00 635 00 0 00 19 73 636 03 0 00 0 00 � 6 Pond 2 Storage Node 640 50 645 00 640 50 0 00 19 39 641 90 0 00 0 00 � , � � , i �] 1 � �� t 1 t 1 � � Link Summary SN Element Element From To (OuUel� Lenglh Inlet Ou�el Average Diamefer or Manning s Peak Design Flow Peak Flowl Peak Flow Peak Flow Peak Flow Tolal Time Reported � ID Type �1nlet) Node invert InveA Slope Height Raughness Flow Capauty Design Flow Velocity Depih Depihl Surcharged CondiUon Node Eleva6on Eleva6an Raho Total Depth Ra6o (fl� �ft) (ft� (�) (in) (cfs) �ds) (Nsec� (ft) (min� � 1 Link-01 Pipe Jun-01 Out-02 45 00 635 00 63410 0 6700 15 000 0 0130 4 53 10 55 0 43 413 0 57 0 46 O OO Calculated 2 Link-02 Pipe Jun-02 Out-01 17 00 640 50 640 40 0 5900 15 000 0 0130 7 21 9 91 0 73 4 40 0 79 0 63 O OO Calculated 3 P10RIFACEi O�ice Pond-1 Jun-01 63500 63500 2000 O10 4Pi-0RIFACE2 Onfice Pond1 Jun-01 6350(I 63500 12000 443 , 5 P2-0rrfacei Orfice Pond 2 Jun-02 640 50 640 50 2 000 012 6 P2-0rrface2 Onfice Pond-2 Jun-02 640 50 640 50 12 000 7 09 7 Pi EmergWier Weir Pond-1 Out-02 63500 63470 000 8 Pi Weirt Weir Pond 1 Jun-01 63500 63500 000 �9P2EmergWier Weir Pond-20ut-01 64050 64040 000 10 P2 Weirt We�r Pond-2 Jun-02 640 50 640 50 0 00 ' � � � j I LJ � � LJ � ' i i � Subbasin Hydrology Subbasin {watershed} AREA 3 OFF A lnput Data Area (ac) 2 62 Weighted Curve Number 74 00 Rain Gage ID RAIN Composite Curve Number Area Sol Curve Sod/Surface Descnpt on (acres) Group Number 75 / grass cover Good 2 62 C 74 00 Composite Area 8 We ghted CN 2 62 74 00 Time of Concentration TOC Method SCS TR 55 Sheet Flow Equation Tc (0 007 ((n ��^0 8)) /((P^0 5) (Sf 0 4)) W here Tc Time of Concentrat on (hr) n Manni g s roughness Lf Flow Length (ft) P 2 yr 24 hr Ra nfall ( nches) Sf Slope (fVft) Shallow Conce trated Flow Equation v �s �sas (sr o s> �u pa ed surtace) V 20 3282 (Sf 0 5) (pa ed surface) V 15 0(Sf^0 5) (grassed waterway surface) V 10 0(Sf"0 5) (nearly bare & unt Iled surface) v s o�srro s> �cui� ated st a ght ows surface) V 7 0 (Sf^0 5) (short g ass pastu e surface) V 5 0 (Sf^0 5) (woodland surface) v 2 s (Sf^0 5) (fo est w/heary I tter surface) Tc (Lf / V) / (3600 seclhr) W here Tc T me of Co ce t a�on (hr) Lf Flow Length (ft) V Veloc ty (fUsec) Sf Slope (fVft) Channel F�ow Equat�on V (1 49 (R (2/3)) (Sf 0 5)) / R Aq/Wp Tc (Lf / V) / (3600 sec/h ) W here Tc T me ot Concentration (hr) Lf Flow Length (ft) R Hyd aul c Rad us (ft) Aq Flow A ea (ft ) Wp WettedPermeter(ft) V Veloc ry (fUsec) Sf Slope (ft/ft) n Mann ng s roughness � � � � CJ �' ' � LJ � � r � � i � 1 [� � Sheet Flow Computat o s Manning s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall ( n) Velocity (fUsec) Computed Flow T me (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surtace Type Veloc ty (ft/sec) Computed Flow T me (m n) Total TOC (m n) 18 97 Subbas�n Runoff Results Total Ra nfall (in) Total Runoff (in) Peak Rurtoff (cfs) Weighted Curve Number T me of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 3 0 00 0 00 350 000 000 0 10 0 00 0 00 17 46 0 00 0 00 Subarea Subarea Subarea A B C 378 000 000 471 000 000 Unpaved Unpaved Unpaved 350 000 000 1 51 0 00 0 00 2 12 041 1 33 74 00 0001858 Subbas�n {watershed} AREA 3 OFF A � 2 2 2 L 2 C N C � N a' � i � 0 0 0 0 Rainfall Intensity Graph � � i 1 1 1 0 ( 0 � � U O " ( O C O � 2 ( 0 ( 0 ( 0 ( 0 C 0 ( 0 15 t )5 1 IS 9 SS 8 '5 7 i5 6 S5 4 15 3 >5 2 IS 1 l5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph l 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � � � ' � � � � � � , ' � � � � � � � Subbasm {watershed} AREA 3 OFF B Input Data Area (ac) 2 OS We ghted Curve Numbe 74 17 Rain Gage ID RAIN Composite Curve Number Area Sol Curve So I/Surtace Descnption (acres) Group Number 75 / grass cover Good 2 03 C 74 00 Pa ed park ng 8 roofs 0 01 C 98 00 Composite Area & Weighted CN 2 04 74 17 Time of Concentrat�on Sheet Flow Computations Manrnngs Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (m) Veloaty (ft/sec) Computed Flow Time (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Veloaty (fUsec) Computed Flow Time (min) Total TOC (m n) 18 15 Subbasm Runoff Results Total Ra fall (in) Total Runoff ( n) Peak Runoff (cfs) We ghted Curve Number Time of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C a o 00 0 00 100 0 00 0 00 3 29 0 00 0 00 350 000 000 0 10 0 00 0 00 16 83 0 00 0 00 Subarea Subarea Subarea A B C 191 0 00 0 00 2 23 0 00 0 00 Unpa ed U paved U paved 241 000 000 1 32 0 00 0 00 2 12 041 1 08 74 17 0 00 18 09 Subbasm {watershed} AREA 3 OFF B a 3 3 3 3 2 2 r 2 c .:, 2 m `c m � � 1 1 � 0 0 0 0 1 1 0 ( 0 ( 0 ( � 0 � ( c � � � � 0 ( 0 ( 0 ( 0 ( t )5 1 �5 9 35 8 IS 7 i5 6 i5 5 15 4 35 3 25 2 15 1 )5 ' � , i 9 k �� ..__�___r � _ _ # ( �_______ � _ _ __M____ _ � _� � r 1 i a Ra�nfall intensity Graph i � I P __�� __ I { t f € 4 1 i ( r � f ( J � � �� t � I 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 tlS 9u y5 Time (hrs) � � � r � r �_J � Subbasin {watershed} AREA 3 OFF C Input Data Area (ac) 1 25 W e ghted C rve Number 75 67 Ra n Gage ID RAIN Compos�te Curve Number Area So I Curve SoillSurface Description (acres) Group Number Pa ed park ng & roofs 0 09 C 98 00 75 / g ass co er Good 1 16 C 74 00 Composite Area & Weighted CN 1 25 75 67 Time of Concentrat�on Sheet Flow Computat ons Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 h Ra nfall ( n) Veloc ty (fUsec) Computed Flow Tme (min) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ry (ft/sec) Computed Flow T me (mm) � Channel Flow Computat ons Ma g s Roughness Flow Length (ft) Channel Slope ( / ) C oss Sectwn Area (ft ) � WettedPermeter (ft) Veloc ty (ft/sec) Computed Flow T me (m n) Total TOC (m n) 20 O6 � � �I � ' � , , � Subbasm Runoff Results Total Ra nfall ( n) Total Ru off (i ) Peak Ru off (cfs) We ghted Curve Number T me of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 391 000 000 350 000 000 Ott 000 000 1570 000 000 Subarea Subarea Subarea A B C 309 0 00 0 00 2 33 0 00 0 00 Unpaved Unpaved Unpaved 2 46 0 00 0 00 2 09 0 00 0 00 Subarea Subarea Subarea A B C 03 0 00 0 00 525 0 00 0 00 1 t 9 0 00 0 00 5 0 00 0 00 8 32 0 00 0 00 3 86 0 00 0 00 2 27 0 00 0 00 2 12 0 47 0 73 75 67 0 00 20 04 Subbasm {watershed} AREA 3 OFF C 4 3 3 3 3 2 2 r 2 c �., 2 m `c m � � 1 1 i 0 0 0 0 � 0 c 0 c 0 c y O U .... ( O C � � � 0 � 0 i 0 Rainfall Intensrty Graph . . €{ . . ..� ._ ` � � � � j } Y 1 1 � _ __ ,_ _ � _._ W. .� i_ � i # i _ � _ _ _ _ —�-----) � . -_—_- .-,. . _ _ ��---�-- — _ _ � � �� ___�_ ____ _ _ , — � -_, _ _ � _ . � _ � ° i t _ ____ v _. _ � � _ . _._ _.___ _ ?______ t � f � � f i 1 � _ t � � j E § j E E � E t _ _ _, � i � z � , f ; — t � � k _ __ _ __ � _� _ �_� _ t _ _ _ _ _ � _ �_ E � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph _ _____�_ � _ � _ � � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � � , � � � , � � � � � � � � � � � � Subbasin {watershed} AREA 3 SUB A Input Data A ea (ac) 18 19 We ghted C rve N mber 81 43 Ram Gage ID RAIN Composite Curve Number Area So 1 Curve Soil/Surface Descnption (acres) Group Number 75 / grass cover Good 12 53 C 74 00 Paved parking & roofs 5 62 C 98 00 Composite Area 8 We ghted CN 18 15 81 43 Time of Concentration Sheet Flow Computat ons Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra fall ( n) Veloc ty (ft/sec) Computed Flow T�me (min) Shallow Concentrated Flow Computat o s Flow Length (ft} Slope ( / ) Surtace Type Veloc ry (ftlsec) Computed Flow T me (m n) Channel Flow Computat ons Ma n g s Roughness Flow Length (ft) Channel Slope ( / ) Cross Section Area (ft ) WettedPerme[e (ft) Veloc ry (ft/sec) Computed Flow Time (m n) Total TOC (m n) 18 92 Subbasin Runoff Results Total Ra nfall (in) Total Runoff ( n) Peak Ru off (cfs) We ghted Curve Number T me of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 0 40 0 00 0 00 100 0 00 0 00 391 000 000 3 50 0 00 0 00 011 000 000 15 70 0 00 0 00 Subarea Subarea Subarea A B C 308 0 00 0 00 2 33 0 00 0 00 U paved Unpaved Unpa ed 2 46 0 00 0 00 209 000 000 Subarea Subarea Subarea A B C 013 0 00 0 00 793 0 00 0 00 1 74 0 00 0 00 7 0 00 0 00 103 000 000 11 69 0 00 0 00 1 13 0 00 0 00 2 12 0 70 17 78 81 43 0 00 18 55 Subbasm {watershed} AREA 3 SUB A a 3 3 3 3 2 2 r 2 C � 2 m C l0 � � 1 t t 0 0 0 0 i � t t t t t t � t � ° t 0 c � � Rainfall Intensity Greph 3 � � r 4 I z_ _ }______ _ � � m � � _ _ � t_ � _ _�___ _ � � 3 ( t s ' g_ �� ,_ _v _ _-.- � ,_ �� _ _ i � 5 } t 1 -� - -- E E € 2 2 t � B � E o � 4 € t 2 � � � ! B 7 ! � € D 7 4 � 6 } 2 - t { �' �' is � 3 i i l � � i � 1 i � I � __ � � .� ---� � ._ _ ' i _ _ � E �_._. _"___ � .� --a__.._. ...... »----._._.......<,. t� i � �m [ ... ,W— �_ _ � ( f � 7 i � i t $ � � 9 � � P i� 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph r 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � � ' , ' � , r , � � , � , ' � � ' � Subbasin {watershed} AREA 3 SUB B Input Data Area (ac) 3 69 We ghted Curve Number 79 69 Ra n Gage ID RAIN Composite Curve Number A ea Sod Curve So I/SuAace Descnption (acres) Group Number 75 / grass cover Good 2 81 C 74 00 Pa ed park ng & roofs 0 87 C 98 00 Compos te Area & We ghted CN 3 68 79 69 Time of Concentration Sheet Flow Computations Manning s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (in) VeloGry (fl/sec) Computed Flow T me (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Veloary (ft/sec) Computed Flow Time (min) Total TOC (m n) 28 30 Subbasm Runoff Results Total Ra nfall ( n) Total Runoff (in) Peak Runoff (cfs) Weighted Curve Number T me of Concentration (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 2 0 00 0 00 3 50 0 00 0 00 0 08 0 00 0 00 20 53 0 00 0 00 Subarea Subarea Subarea A B C 727 0 00 0 00 94 0 00 0 00 U pa ed Unpaved Unpaved 1 56 0 00 0 00 7 77 0 00 0 00 2 12 0 62 2 56 79 69 0002818 Subbas�n {watershed} AREA 3 SUB B 3 3 3 3 2 2 t 2 c �. 2 m c m � � 7 1 7 0 0 0 0 z z z 2 2 2 2 1 t t 1 � � U � � O 1 c � � 1 0 0 0 0 0 0 0 0 0 Ra�nfall Intens�ty Graph 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � 5 s _ _ _ { 3 2 1 � 3 3 � 7 i � i � 1 1 3 9 7 5 5 4 3 2 1 Runoff Hydrograph .- i � 5 10 15 20 25 30 35 40 45 50 55 60 6b /u ib su ua au a Time (hrs) r � , , ' � ' � ' , � r , � t � � � i Subbas�n {watershed} AREA 3 SUB C input Data Area (ac) 3 14 Weighted Curve Number 79 75 Rain Gage ID RAIN Composite Curve Number A ea Sol Curve So VSurface Descnpbon (acres) Group Number 75 / grass cover Good 2 38 C 74 00 Pa ed parkmg & roois 0 75 C 98 00 Composite Area & We ghted CN 3 13 79 75 T�me of Concentration Sheet Flow Computat ons Mannmg s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (�n) Veloc ty (fVsec) Computed Flow Time (m n) Shallow Concentrated Flow Computat o s Flow Length (ft) Slope ( / ) Surface Type Veloc ty (iVsec) Computed Flow Time (m n) Total TOC (m n) 19 77 Subbasin Runoff Results Total Rainfall ( n) Total Runoff ( n) Peak Runoff (cfs) We ghted C rve Numbe Time of Conce t at�on (days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 26 000 000 350 000 000 0 09 0 00 0 00 18 49 0 00 0 00 Subarea Subarea Subarea A B C 190 0 00 0 00 2 33 0 00 0 00 Unpaved Unpaved Unpaved 2 46 0 00 0 00 7 29 0 00 0 00 2 12 0 63 2 64 79 75 0001946 Subbasm {watershed} AREA 3 SUB C v 3 3 3 3 2 z t 2 ` 2 m m � � 1 1 � 0 0 0 0 z z 2 2 2 2 2 2 1 1 1 N 1 U � � , O C 1 � � 1 1 0 0 0 0 0 0 0 0 Rainfall Intensity Graph i i � � t f s t � � i f L — -. � � 1 { 1 d p t ( t � ) _ �_ _ �_ _ _ _ ______,--_____�� _ � _ � _ --� E t I � 3 E { � � � ; �, � — _ _ , � ._ � ,_... _ ._._ _______�-_ ._—,-- ---�---------^---- ____ _� _ � ; t f � 1 I � y—, �� _ � _ _ _ _ ___ __ _ _ _ _ __ ��__,_. _ _ � > 4 1 ; I � _ � � t � { k E 3 � -- � �--- � � t i � -» � i � y � � _ � j i � _ W� t � � _ s � � I � ; _ _ _ _ _ ,_ _ � _ _ _ _— __� , � i i S i 3 2 I � �� 3 ) 1 3 B 7 0 S 4 3 2 1 , 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 . Time (hrs) Runoff Hydrograph � i 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 9u y5 Time (hrs) ' , ' , ' , ' � ' , � , ' � � ' , � � Subbasm {watershed} AREA 3 SUB D Input Data A ea (ac) 2 74 We ghted Curve Number 78 68 Ra Gage tD RAIN Composrte Curve Number Area Sol Curve Sol/SurtaceDesc pton (acres) Group Number 75 / grass co er Good 2 20 C 74 00 Pa ed pa k ng & oofs 0 53 C 98 00 Compos te Area 8 W e ghted CN 2 73 78 68 T�me of Concentration Sheet Flow Computations Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 h Ra nfall ( n) Veloc ry (ft/sec) Computed Flow T me (m n) Shallow Concentrated Flow Computations Flow Le gth (ft) Slope ( / ) Surface Type Veloc ry (ft/sec) Computed Flow T me (m n) Total TOC (m n) 28 06 Subbas�n Runoff Results Total Ra nfall ( n) Total R nofl ( n) Peak RunoN (cfs} We ghted Curve Numbe T me of Co ce t at on (days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 1 0 00 0 00 3 50 0 00 0 00 0 O6 0 00 0 00 27 09 0 00 0 00 Subarea Subarea Subarea A B C z�a o 00 0 00 852 000 000 Unpaved Unpa ed Unpaved a�i o00 000 097 000 000 2 12 0 58 1 75 78 68 0 00 28 04 Subbasm {watershedj AREA 3 SUB D a 3 3 3 3 2 2 t 2 c �. 2 m c m � � t 1 � 0 0 0 n 1 i � t � t � i � t � U C � � � 0 0 0 0 0 0 0 n a�4 �� ,� 3 �� i r > s i 3 � Rainfall Intens�ty Graph C 3 ! � € ( € € E _ _ } _ � _____ _ �_ _ � i � � � _. � — _ _ � ____ � ____ �___.�_.____ I i i 1 � 9 j � i � t I � i , [ —__ ��_ t � i i i i � R � t I I S� �,_ � ____ _ _____ __ _ _ __ _ � i I � I 1 _ � _ _ __ __� __ _ _ _ �,_ _ _ � J 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 Sb 90 Time (hrs) Runoff Hydrograph I i r ( t � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � � ' ' , , , � ' � , , ' ' ' � � � � Subbas�n {watershed} AREA 4 OFF A Input Data Area (ac) 8 93 Weighted Curve Number 74 81 Ra n Gage ID RAIN Composite Curve Number Area Sod Curve Soil/Surface Descnption (acres) Group Number Paved park g 8 roofs 0 29 C 98 00 75 / grass cover Good 8 21 C 74 00 Composite Area & Weighted CN 8 50 74 81 Time of Concentration Sheet Flow Computat ons Manrnngs Roughness Flow Length (ft) Slope ( /o) 2 yr 24 hr Rainfall (in) Veloaty (ft/sec) Computed Flow Time (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed Flow Time (min) Total TOC (min) 27 89 Subbasin Runoff Results Total Rainfall ( n) Total Runoff ( n) Peak Ru off (cfs) Weighted Curve Number T me of Concent at on (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 02 0 00 0 00 350 000 000 0 06 0 00 0 00 26 88 0 00 0 00 Subarea Subarea Subarea A B C 744 0 00 0 00 2 17 0 00 0 00 Unpaved Unpaved Unpaved 2 38 0 00 0 00 1 01 0 00 0 00 2 12 0 44 4 04 74 81 0 00 27 53 Subbasin {watershed} AREA 4 OFF A a^ 3 3 3 3 z z r 2 c c, 2 R c m � � 1 1 , 0 0 0 0 3 3 3 3 2 2 y 2 � 2 0 c 3 � � � i � 0 0 0 0 � � � I 3 i s — -- � � 3 ; _ _ i � Ra�nfall Intens�ty Graph T� �_� I w # i � � ! � � I _,___ � _..� _ � _ , i � ( i � � � � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph 5 1� 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) , , ' ' � ' , ' � ' ' ' ' ' ' ' , � , Subbas�n {watershed} AREA 4 OFF B Input Data Area (ac) 1 66 We ghted Curve Numbe 75 04 Rain Gage ID RAIN Compos�te Curve Number Area So I Curve Soil/Surface Descnpton (acres) Group Number Pa ed pa k g 8 oofs 0 07 C 98 00 75 / grass cover Good 1 58 C 74 00 Composite Area 8 Weighted CN 1 65 75 04 Time of Concentration Sheet Flow Computat ons Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 y 24 h Ra nfall (in) Veloc ty (ft/sec) Computed Flow T me (min) Shallow Concentrated Flow Computat�ons Flow Le gth (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed Flow T me (min) Total TOC (m ) 30 05 Subbasm Runoff Results Total Rainfall ( n) Total Runoff ( n) Peak Ru off (cfs) We ghted Curve Number T me of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 1 000 000 3 50 0 00 0 00 0 06 0 00 0 00 27 09 0 00 0 00 Subarea Subarea Subarea A B C 441 0 00 0 00 2 39 0 00 0 00 Unpaved Unpa ed Unpa ed 2 49 0 00 0 00 295 000 000 2 12 0 44 0 74 75 04 0 00 30 03 Subbasin {watershed) AREA 4 OFF B 4 3 3 3 3 z 2 L Z C �., 2 m `c m � 2' 1 1 1 0 0 0 0 t 0 ( 0 f 0 C vi 0 U ... ( `o c � 0 C 0 C 0 C 0 Ra�nfall Intensity Graph � ` I _. _ �. _ � _ _ _ _ _ _ __ _ i � ; i _ _ _ _ _ i _ _ �� __ __ , { �.. .� .w .... ...., ; _ � � i E 3 � � � 3 1 i 3 3 — 9 'S 7 i5 6 i5 5 l5 4 SS 3 ?5 2 15 1 fi i•-- ..._ ..... .._. '�""...� ,,,.. .... y ` � t I � _ _ ,_._ _ t i E � _____s _ ---^---------. �_ � � _ I � s i _ ,,_ � � ______ F � S � t � � � i _ _, �� j { ._ --t.�� .�. F � � __ _ _ _ ._ � _�_� I � r 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Time (hrs) Runoff Hydrograph � I t � ____ _ __�__�_� � _ _ � __ t � � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 /5 Su ss au ao Time (hrs) � , , , � ' � 1 Subbasm {watershed} AREA 4 SUB A Input Data Area (ac) 17 45 Weighted Curve Number 82 93 Ra n Gage ID RAIN Compos�te Curve Number Area So I Curve SoiVSurface Descr pt on (acres) Group Number 75 / grass co er Good 10 95 C 74 00 Paved park ng & oofs 6 48 C 98 00 Compos te Area 8 We ghted CN 17 43 82 93 Time of Concentration Sheet Flow Computations Manrnng s Roughness Flow Length (ft) Slope ( f ) 2 yr 24 hr Ra nfall ( n) Velocity (ft/sec) Computed Flow Time (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope ( / ) Surtace Type Veloc ry (ft/sec) Comp ted Flow Time (min) ' Chan el Flow Computat o s Mann ng s Roughness Flow Length (ft) Cha nel Slope ( / ) Cross Sect on A ea (ft ) , Wetted Pe meter (ft) Veloaty (Wsec) Computed Flow T me (m ) Total TOC (m n) 28 53 � i� , � ' ' , � l__�1 Subbasm Runoff Results Total Rainfall ( n) Total Runoff ( n) Peak Runoff (cfs) We ghted Curve Number T me of Concent ation (days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 7 5 0 00 0 00 3 50 0 00 0 00 007 000 000 23 04 0 00 0 00 Subarea Subarea Subarea A B C 354 0 00 0 00 1 26 0 00 0 00 Unpaved Unpaved Unpaved 1 81 0 00 0 00 326 000 000 Suba ea Subarea Subarea A B C 013 000 000 712 000 000 OS 000 000 1 76 0 00 0 00 471 000 000 5 32 0 00 0 00 223 000 000 2 12 0 78 15 44 82 93 0002832 Subbasin {watershed} AREA 4 SUB A v 3 3 3 3 2 C 2 �. 2 m C � 1 i 1 1 0 � � 0 Ra�nfall Intensity Graph { 1 _ _ ____. __ _ ___ ,� _ . _ ___ _� ____�__ ____� �� ( r r » � � t ( € € 1 � -.�., ____ —, ._._. � # { �I a a � �-._ � � �. � _ _ 1 � � __ � � � 7 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 SO 85 90 95 T�me (hrs) Runoff Hydrograph t' t t 1 1 1 1 � ' U O C 7 � � > l S > ) � 3 ) i t i � 5 70 15 20 25 30 35 40 45 50 55 60 65 70 75 60 85 90 95 Time (hrs) ' ' ' , ' , ' J Subbasm {watershed} AREA 4 SUB B Input Data Area (ac) 2 31 We ghted Curve Number 79 28 Ra n Gage ID RAIN Composite Curve Number Area Sol Curve So I/Surface Descnpt o (acres) Group Number 75 / grass cover Good 7 81 C 74 00 Paved parkmg & roofs 0 51 C 98 00 Compos te Area & Weighted CN 2 32 79 28 T�me of Concentration Sheet Flow Computat ons Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfail (in) Veloary (fUsec) Computed Flow Time (m n) Shallow Concentrated Flow Computations Flaw Length (ft) Slope ( / ) Surface Type Veloaty (ft/sec) Computed Flow Time (m n) � Channel Flow Computat ons Mann ng s Roughness Flow Length (ft) Channel Slope ( / ) Cross Sect on Area (ft ) ' Wetted Penmeter (ft) Veloc ry (ft/sec) Computed Flow T me (m n) Total TOC (min) 23 19 , � , � , , , �J L Subbasm Runoff Results Total Ra nfall ( n) Total Runoff ( n) Peak Runoff (cfs) Weighted Curve Number T me of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 27 000 000 3 50 0 00 0 00 0 09 0 00 0 00 1821 000 000 Subarea Subarea Subarea A B C 195 0 00 0 00 2 15 0 00 0 00 Unpaved Unpaved Unpa ed 237 000 000 1 37 0 00 0 00 Subarea Subarea Subarea A B C 03 0 00 0 00 913 0 00 0 00 1 42 0 00 0 00 5 000 000 8 32 0 00 0 00 421 000 000 361 000 000 2 12 061 1 72 79 28 0002311 Subbasin {watershed) AREA 4 SUB B a2 a 38 36 34 32 3 28 26 = 24 � 22 m 2 `c � 1 8 16 14 12 1 08 06 04 02 t � � � � � � � N U � O O C � O � 0 � � 0 0 Q � � _ _ � a � ! 1 _____ __�___ �, w r i I � _ �_____ � t � � _ � I r � __�� ,� � i ( a 3 f _ _ L _ _ _ ! t � ( __� _ { { ; E —�-- -,-- __ E � _�� _ _ t t i , __ _ � i � � � �-�—r � r Rainfall Intensity Graph � ..... -.�."_'—.— _ E --• � I i 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Time (hrs) 5 # t 7 � j[ ! J-` ^�-_-"-"- % ) 7 1 3 2 } Runoff Hydrograph 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) ' Junct�on Input , SN Element Invert Ground/Rim GroundlRim Indial Indial Surcharge Surcharge Ponded Mmunum ID Elevatwn (Max) (Max) Water Water Elevation Depth Area Pipe Elevation Offset Elevation Depth Cover (ft) (fl) (fl) (ft) (R) (ft) (ft) (ft ) (in) ' 1 Jun-0i 635 00 642 00 7 00 635 00 0 00 0 00 642 00 0 00 0 00 2 Jun-02 640 50 644 50 4 00 640 50 0 00 0 00 644 50 0 00 0 00 ' ' ' ' ��I �J � ' ' I� , � ' � , � ' ' Junction Results SN Eleme 1 Peak Peak Max HGL Max HGL Max M n Average HGL Average HGL T me of T me of Total Total T me , ID I flow Late al Ele at on Depth Surcharge Freeboard Elevabon Depth Max HGL Peak Flooded Flooded Inflow Atta rted Atta ned Depth Attained Attained Attained Occurrence Flooding Volume Attained Occurrence (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh mm) (days hh mm) (ac in) (min) ' 1 Jun 01 4 53 0 00 635 57 0 57 0 00 6 43 635 06 0 06 0 04 Ot 0 00 00 0 00 0 00 2 Jun 02 7 21 0 00 647 29 0 79 0 00 11 71 640 56 0 O6 0 04 02 0 00 00 0 00 0 00 ' ' ' � ' � i I, �__ ' � ��, ' ' ' , ' i� .J 1 r � ' ' , � 1 ' ' ' ' � ' , ' ' , ' ' Pipe Input SN Element Length Inlet I let Outlet Outlet Total Average Pipe P pe P pe Mann g s Entrance ExiUBend Add t o al Initial Flap No of ID In ert I ert In ert In ert D op Slope Shape D amete o W dth Roughness Losses Losses Losses Flow Gate Barrels Ele at on Offset Ele at o OHset Height (ft) (ft) (n) (K) (ft) (ft) ( / ) (�n) (�n) (�s) t Link 01 45 00 635 00 0 00 634 70 0 00 0 30 0 6700 CIRCULAR 15 000 15 000 0 0130 0 5000 0 5000 0 0000 0 00 No 2 2 L nk �2 17 00 640 50 0 00 640 40 0 00 0 10 0 5900 CIRCULAR 15 000 15 000 0 0130 0 5000 0 5000 0 0000 0 00 No 2 �' Pipe Results SN Eleme t Peak Time of Design Flow Peak Flowl Peak Flow T a el Peak Flow Peak Flow Total T me Froude Reported ' ID Flow Peak Flow Capaciry Design Fbw Velocdy Time Depth Depth/ Surcharged Numbe Cond t on Occ rtence Rat o Total Depth Rat o (cis) (days hh mm) (cfs) (ft/sec) (min) (fl) (m n) ' 1 L nk Ot 4 53 0 04 02 70 55 0 43 4 13 0 18 0 57 0 46 0 00 Ca�culated 2 L nk 02 7 21 0 04 02 9 91 0 73 4 40 0 O6 0 79 0 63 0 00 Calculated I� I� � � � , ' �� ' � ' , ' , ' ' ' ' � ' ' ' 1 ' � � � � I � � t � � ' ' , ' 1 Storage Nodes Storage Node Pond 1 Input Data Invert Elevat�on (ft) Max (R m) Elevat on (ft) Max (R m) Offset (ft) Indial Water Elevat on (ft) Initial Water Depth (ft) Ponded Area (ft ) E aporet o Loss Storage Area Volume Curves Storage Curve Pond 1 Stage Storage Storage Area Volume (h) (ft ) (ft'') 0 25043 0 000 1 29748 27395 50 4 36042 126080 50 635 00 642 00 7 00 635 00 0 00 0 00 0 00 � m � A N Storage Area Volume Curves Storage Volume (ft ) 0 10 000 20 000 30 000 40 000 50 000 60 000 70 000 80 000 90 000 100 000 110 000 120 000 4 4 3 9 -- r-- -- ---- } - - - - 3 38 � 3 37 i 3 36 � -- - 3 35 3 34 � 3 33 3 31 � - 3 31 -.-- - -- 3 3 3 29 - -- 2 28 - -� --�- - - 2 27 ; 2 2 6 --- r --- -- - - -- - Z 25 � 2 24 2 2 3 - -� - -- 2 22 2 21 -:- � - - - --�- - -- - 2 2 2 '1 9 -- �- --' - - --� - - --- - - -- - - - 1 'I 8 ---�- - - --- - -- - - - - - 1 17 1 1 6 ----� -- - - - - - 1 15 -- -�- -- -�- ---- - - - 1 '1 4 1 13 - - - r- - - - 1 12 1 11 1 � - - --r---- -- 1 09 0 0 8 - - - ---�--- - - -- -`- � 0 7 - --- --- -- - - - - - � 0 6 - - - - -- - - -- ---�-- - - - - -- 0 0 5 --- - --r �. _--- - - --- - 0 04 0 03 - -- ----t- - - - --- - - - 0 0 2 - - - - � -� --- - - - - 0 01 0 0 4 0 15 000 26 000 27 000 28 000 29 000 30 000 31 000 32 000 33 000 34 000 35 000 36 00 Storage Area (ft ) — Storage Area — Storage Volume 9 8 7 6 5 4 3 2 1 9 B 7 6 5 4 3 2 1 � d � 9 N 8 7 6 5 4 3 2 1 9 B 7 6 5 4 3 2 1 � � Storage Node Pond 1 (continued) � Outflow Weirs SN Element Wer Flap Crest Crest Length WeirTotal Discharge ID Type Gate Elevation Offset Height CoeffiGent ' (ft) (fr) (ft) (ft) 1 P1 Eme gW e Trapezo dal No 637 60 2 60 20 00 1 00 3 33 2 P7 We r1 Side Flow No 636 50 1 50 28 00 1 00 0 61 � OUtfIOW OfIfCeS SN Element Orifice Orif ce Flap C rcular Rectangular Rectangular Orifce Orifce ID Type Shape Gate Onfce Orfice Onfice Invert Coefficient � Diameter Height Width Elevation pn) Qn) ( n) (ft) 1 P1 ORIFACEI Side CIRCULAR No 2 00 635 00 0 61 2 P1 ORIFACE2 S de Rectangular No 12 00 24 00 635 30 0 63 � � � � ' � e � � � � � r � Output Summary Results Peak Inflow (cfs) Peak Lateral Inflow (cfs) Peak Outflow (cfs) Peak Exfltraton Flow Rate (cfm) Max HGL Elevation Atta ed (ft) Max HGL Depth Atta ned (ft) Average HGL Elevation Attained (ft) Average HGL Depth Atta ned (ft) T me of Ma HGL Occ rence (days hh mm) Total E�Itration Volume (1000 ft ) Total Flooded Volume (ac in) Total T me Flooded (m n) Total Retention T me (sec) 19 73 19 73 4 53 0 00 636 03 1 03 635 18 0 18 0 04 Ot 0 000 0 0 0 00 Storage Node Pond 2 Input Data In ert Elevation (ft) Ma (R m) Ele ation (ft) Max (Rim} Offset (ft) Irntial Water Elevation (ft) Inital Water Depth (ft) Ponded A ea (ft ) Evapo ation Loss Storage Area Volume Curves Storage Curve Pond 2 Stage Storage Storage Area Volume (ft) (ft ) (ft') 0 20029 0 000 4 27373 94804 00 640 50 645 00 4 50 640 50 0 00 0 00 0 00 f� � � , � � �^'� u � � � � � E� � � ' � i r � � r � � � � ! � � � � � � � i � � � � � 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 � 2 m m +� 1 N 1 1 1 1 1 1 � � 0 0 0 0 0 0 0 0 0 Storage Area Volume Curves Storage Volume (fN) o � o 00o zo 00o so 00o ao 00o so 00o eo 000 �o 00o so 00o so 000 a a 9 — — — — — — — — -- — — —� — -- -- — 3 8 � 3 7 3 6 — — — — —i— 3 5 3 4 — 3 3 � 3 2 -- — -- --- — — -- 3 1 — — -- �� _ — _ _— _ � -- 3 3 � � 3 9 -- — — — --- — — --* 2 8 -- — — — — — -- — — — — — — —� 2 7 2 6 — — — — — — --- j — — — — 2 5 2 4 2 3 — -- — — ----- -- — — — � � �_� Z 2 i 2 � -- — -- ---- — — — —F— — — 2 2 2 3 9 — — — — -- — — — -- �_ _—Y —_ ^-- — 'I g.W. ._..._— — — -- _ _ _.. �_.a__ — _. ._ � 7 1 6 -- — — -- — — -- — — — — — — { -- — � --- —! __� � .� � 5 — — — — _ �f �-- —�---- -- 1 4 f � f 3 — t *-- 1 1 2 1 � � � � — — — — _ _ _ _ _ — _ — —+ —t---- — 'I 9 0 B-- --- — ---- — — — _ � � � _ __ _s � _ _ � _ 0 6 — — — -- -- � -- — — — — — — -- _ � _ �j� -- 0 5 — — — — _ __ }_ _— — — -- { — — � — --- -- — — 0 4 � 0 3 — — _ _ _ _ ---- — --- — — — — �.. � __— * _ _ p i 2 — — — � — — — — — —3-- 0 � � 0 o_ __ ___ _ o 20 000 2'I 000 22 000 23 000 24 000 25 000 26 000 27 000 Storage Area (ft ) — Storage Area — Storage Vofume 9 B 7 6 5 4 3 2 1 9 B 7 6 5 4 3 2 1 � N � g :a N B 7 6 5 4 3 2 7 9 B 7 6 5 4 3 2 1 Storage Node Pond 2 (continued) Outflow We�rs SN Element We Flap Crest C est Le gth We r Totai D scharge ID Type Gate Ele at o Offset He ght Coeff c e t (ft) (ft) (ft) (ft) 1 P2 EmergW er Trapezoidal No 643 60 3 10 20 00 1 00 3 33 2 P2 We r1 S de Flow No 643 00 2 50 26 00 10 00 0 6t Outflow Onfices SN Element Onfice Onfice Flap Circular Rectangular Rectangular Onfce Onfice ID Type Shape Gate Onfce O�ce Ordce Invert Coeffcent Diameter Height Width Elevaton (m) (m) ( n) (ft) 1 P2 Orrfacel Side CIRCULAR No 2 00 640 50 0 61 2 P2 Onface2 Side Rectangular No 12 00 24 00 640 90 0 63 Output Summary Results Peak Inflow (cfs) Peak Lateral I flow (cfs) Peak Outflow (cfs) Peak Exfitrat on Flow Rate (cfm) Max HGL Elevation Atta ned (ft) Max NGL Depth Attained (ft) A erage HGL Ele at on Attained (ft) Average HGL Depth Atta ned (ft) T me of Max HGL Occurrence (days hh mm) Total Exf'It at on Vol me (1000 ft) Total Flooded Volume (ac n) Total T me Flooded (m ) Total Retent on T me (sec) 19 39 19 39 721 0 00 641 90 14 640 70 02 0 04 02 0 000 0 0 0 00 � � Pro�ect Description � F le Name PARCEL 5&6 POST SPF Desc pt on E\C3D2017\C I 3D Pro�eds\Stonebr dge(2011)�Parcel 51050 pond dwg � Pro�ect Options Flow Unds CFS Elevat o Type Ele at on Hydrology Method SCS TR 20 � T me of Concentrat on (TOC) Method SCS TR 55 Link Routing Method KmemaUc Wave EnaWe Overtlow Pond ng at Nodes YES Skip Steady State Analys s Time Penods NO ' Analys�s Options Start Analys s On Dec 15 2011 00 00 00 End Analys s On Dec 19 2011 00 00 00 � Start Reporting On Dec 15 2011 00 00 00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01 00 00 days hh mm ss R noff (Wet Weather) Time Step 0 00 05 00 days hh mm ss Report ng T me Step 0 00 OS 00 days hh mm ss Rout ng T me Step 30 seconds � Number of Elements Ra n Gages 1 � Subbasins 11 Nodes 6 Junchons 2 OuHalls 2 Flow Diversions 0 � lNets 0 Storage Nodes 2 L ks 10 Cha els 0 P�pes 2 � Pumps 0 Onfices 4 Werrs 4 Outlets 0 Pollutants 0 � Land Uses 0 Rainfall Details SN Rain Gage Data Data Source Ra nfall Rain State County Return Rainfall Rainfall � ID Source tD Type Un ts Period Depth D stnbut on (years) pnches) 1 T�me Ser es 2YR6HR Cumulat ve inches North Caroli a U on 10 2 56 Charlotte NC 6 h 2 y � � � � � � � Subbas�n Summary SN S bbas n A ea We ghted Total Total Total Peak T me of ID C rve Ramfall Ru off R off Ru oft Co ce t at on Number Volume (ac) ( n) ( n) (ac ) (cfs) (days hh mm ss) 1{watershed)AREA 3 OFF A 2 62 74 00 2 56 0 64 1 68 2 23 0 00 18 58 2{watershed}AREA 3 OFF B 2 OS 74 17 2 56 0 65 1 33 1 81 0 00 18 09 3{watershed}AREA 3 OFF C 1 25 75 67 2 56 0 72 0 90 1 18 0 00 20 03 4{watershed) AREA 3 SUB A 78 19 87 43 2 56 1 01 18 37 26 03 0 00 18 55 5{watershed)AREA 3 SUB B 3 69 79 69 2 56 0 91 3 37 3 86 0 00 28 18 6{watershed} AREA 3 SUB C 3 14 79 75 2 56 0 92 2 88 3 97 0 00 19 46 7{watershed} AREA 3 SUB D 2 74 78 68 2 56 0 86 2 36 2 69 0 00 28 03 8{watershed}AREA 4 OFF A S 93 74 81 2 56 0 68 6 04 6 67 0 00 27 53 9{watershed�AREA 4 OFF B 1 66 75 04 2 56 0 69 1 14 1 21 0 00 30 03 70 {watershed)AREA 4 SUB A 17 45 82 93 2 56 1 10 19 15 22 26 0 00 28 31 11 {watershed}AREA 4 SUB B 2 31 79 28 2 56 0 89 2 06 2 61 0 00 23 11 � � � l7� ' � � r � � �, �� r � � � �1 �� Node Summary � SN Eleme t Element Invert G oundlR m In tiat Surcharge Ponded Peak Max HGL Max M�n Time of Total Total Time ID 7ype Elevation (Max) Water Elevation A ea I flow Ele aton Surcharge F eeboard Peak Flooded Fiooded Elevat on Elevat o Atta ned Depth Attained Flood ng Volume Attamed Occunence � (ft) (ft) (ft) (ft) (ft ) (cfs) (ft) (ft) (ft) (days hh mm) (ac in) (m rt) 1 J n 01 Ju ct o 635 00 642 00 635 00 0 00 0 00 7 81 635 80 0 00 6 20 0 00 00 0 00 0 00 2 J n 02 J nct on 640 50 644 50 640 50 0 00 0 00 10 37 653 00 0 00 0 00 0 04 01 0 75 30 00 3 Out Ot Outfall 640 40 11 92 641 65 4 Out 02 O tfall 634 70 16 22 635 50 � 5 Pond 1 Storage Node 635 00 642 00 635 00 0 00 29 21 636 39 0 00 0 00 6 Pond 2 Storage Node 640 50 645 00 640 50 0 00 28 84 642 44 0 00 0 00 � � � � � � �J � � � � � � � � Lmk Summary � � SN Element Element From To (Outlet) Length Inlet Ou�ef Average D�ameter or Manning s Peak Design Flaw Peak Flowl Peak Flow Peak Flow Peak Flow Total Time Repated ID Type �inlel) Node Invert Invert Slope Height Roughness Flow Capaaty Design Flow Veloaty Depih Depfhl Surcharged CondiGon Node Eleva6on Eleva6on Raho Tokl Depih � Raho (fll (ft) Iftl 1�1 G�l I�sl 1�1 (�1�1 Iftl (��I 1 �nk-01 Pipe Jun-01 Out-02 45 00 635 00 63410 0 6700 15 000 0 0130 7 Bt 10 55 0 74 4 71 0 80 0 64 0 00 Calculated � 2 �nk-02 Pipe Jun-02 Out-0i i7 00 640 50 640 40 0 5900 15 000 0 0130 1019 9 91 103 4 62 t25 10� 0 00 > CAPACITY 3Pt-ORIFACEI Or�ce Pond-1 Jun-01 63500 63500 2000 012 4P1-0RIFACE2 Orfice Pond-1 Jun-01 63500 63500 12000 769 5 P2-0rrfacet Orfice Pontl-2 Jun-02 640 50 640 50 2 000 015 � 6 P2-0rrface2 Or�ce Pond-2 Jun-02 640 50 640 50 12 000 10 23 1 Pt EmergWier Weir Pond 1 Ouf-02 635 00 634 70 0 00 8 P1 Weirt Weir Pond-1 Jun-01 635 00 635 00 0 00 9P2EmergWerWe�r Pond-20ut-01 64050 64040 000 � tOP2Weir1 Weir Pand-2 Jun-02 64050 64050 000 � � � ��I ' � � � � � L__.l � � � � � � � � � � � � � �� `J i � u � � � � Subbasm Hydrology Subbasm twatershed} AREA 3 OFF A Input Data Area (ac) 2 62 Weighted Curve Number 74 00 Ra n Gage ID RAIN Compos�te Curve Number Area Sod Curve So I/Surface Descript�on (acres) Group Number 75 / grass cover Good 2 62 C 74 00 Composite Area & We ghted CN 2 62 74 00 Time of Concentretion TOC Method SCS TR 55 Sheet Flow Equation Tc (0 007 ((n Lf) 0 8)) /((P 0 5) (Sf 0 4)) W here Tc T me of Concentrat on (hr) n Ma n g s oughness Lf Flow Length (ft) P 2 yr 24 hr Ra nfall ( nches) Sf Slope (fUft) Shailow Concent ated Ftow Equat o V 16 1345 (Sf 0 5) ( npaved surface) V 20 3282 (Sf 0 5) (pa ed surface) V 15 0(Sf 0 5) (grassed watenvay s rface) V 10 0(Sf^0 5) (nearly ba e 8 untilled surface) V 9 0 (Sf^0 5) (cult ated st a ght ows surface) V 7 0 (Sf^0 5) (short grass pastu e surface) V 5 0 (Sf^0 5) (woodland surtace) V 2 5 (Sf^0 5) (forest w/heavy 1 tte surFace) Tc (Lf / V) / (3600 sec/hr) W here Tc T me of Concentrat on (hr) Lf Flow Length (ft) V Veloc ty (fUsec) Sf Slope (ft/ft) Channel Flow Equat o V (1 49 (R (2/3)) (Sf 0 5)) / n R Aq/Wp Tc (Lf / V) / (3600 seGhr) W he e Tc T me of Co ce t at o(h ) Lf FI w Le gth (ft) R Hyd a I c Rad s(ft) Aq Flow A ea (ft ) Wp Wetted Pe met (ft) V Veloc ry (ft/sec) Sf Slope (fUft) n Ma ng s rough ess Sheet Flow Computations Ma ng s Rough ess F{ow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall () Veloc ty (fUsec) Computed Flow T me (m n) Shallow Concentrated Flow Computations Flow Length (ft) Slope (°/ ) Surface Type Veloc ty (ft/sec) Computed Flow T me (min) Total TOC (min) 18 97 Subbasin Runoff Results Total Ra fall (in) Total Runoff (in) Peak Runoff (cfs) We ghted Curve Number Time of Concentrat on (days hh mm ss) Subarea Suba ea S barea A B C 4 0 00 0 00 100 0 00 0 00 3 0 00 0 00 350 000 000 O10 000 000 17 46 0 00 0 00 Subarea Subarea Subarea A B C 318 000 000 471 000 000 Unpaved Unpaved Unpa ed 350 000 000 1 51 0 00 0 00 2 56 0 64 2 23 74 00 0001858 � 1 Subbasin {watershed} AREA 3 OFF A � a 4 4 4 � 3 3 3 � 3 � 2 t � " 2 — 2 m `c 2 m � � ' 1 t � � o 0 � o 0 � � Z 2 2 � 2 1 1 � ' 7 1 � � 1 N ..Vi ' ,'; 1 0 C � � � � 0 0 0 � 0 0 0 � 0 0 0 � � Rainfall Intensity Graph 3 i t { i -- � -- � -- - -- � -- { � � � i > �._ _-� _._ �� i � � _ _ _ ,____,_ _ __ _, _ _ � � � � ! � f ; 1 P � # r I ; � � — i __,_a __ _ _ ��W _._ _ _ � � ; � � � � � � � # E �_ � _ _�,� ...__ �� _ _ ,� _..� _ � �...� ��._.. .._.� _ _ � _ _ 3 � � 3 � t � i � __. _ � ____ i s � I� __ _ r -•, � _ � __ _ __ _ � _ � ' � i P 1 ` , 3 � y � � � i � _ � _ .� _ _ s 6 � � I � _ �, -�, _.._ � _ � � � i � € s � � t � 2 1 2 9 B 7 6 5 4 3 2 1 1 3 4 7 5 A 3 � _ _ �_ � � � 1 _� _ � �,__ _� _ _ _ �_ � _ �� 5 1Q 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) t Runoff Hydrograph i � i ...._. -.-. .... .._ _� t i ; 4 b 70 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasm {watershed} AREA 3 OFF B Input Data Area (ac) 2 OS Weighted Curve Number 74 17 Ra n Gage ID RAIN Composite Curve Number Area Sod Curve Soii/Surface Descr pt o (acres) Group Number 75 / grass co e Good 2 03 C 74 00 Paved parking & roofs 0 Ot C 98 00 Composite Area & Weighted CN 2 04 74 17 Time of Concentration Sheet Flow Computal ons Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall () Veloc ty (fUsec) Computed Flow Time (m n) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloaty (fUsec) Computed Flow T me (min) Total TOC (m n) 18 15 Subbasm Runoff Results Total Ra nfall ( n) Total Ru off ( ) Peak Ru off (cfs) Weighted Curve Numbe T�me of Concentration (days hh mm ss) Subarea Subarea Suba ea A B C 4 000 000 100 0 00 0 00 3 29 0 00 0 00 3 50 0 00 0 00 010 000 000 16 83 0 00 0 00 Subarea Subarea Subarea A B C 191 0 00 0 00 2 23 0 00 0 00 Unpaved Unpaved Unpa ed 241 000 000 1 32 0 00 0 00 2 56 0 65 1 81 74 17 0001809 � � Subbasin (watershed} AREA 3 OFF B � 4c 4 4 � 4 3 3 , 3 3 t 2 � c �• 2 „�, z C N Z � ' 1 � � � 1 0 0 � o 0 3 ; _ � _„__ _ � _ � �_ l � ; _,_ _ _ � �_ 1 i � ; ____ ____, __ _.__.�,.,,,,,�..W._,� .„„. 3 3 � i 4 � � ) ) _ � ) � ..... ._.._ _... ______ . ) i > _ _ � � ,� � ' 1 1 1 � 1 1 1 � U I `o c � 0 � � 0 0 0 � 0 0 0 � �, 0 � � _ � � I _� _ Rainfall Intens�ty Graph fi _ .-__ _ -„ _____� _ � _ __�____ � W i _ _ , � _ .____ � �. _ _� _ � } ... ..., _ � �..... _.. �.,,, _ .w...� r .._. ____. � � l Y _ � _ � t 1 � t � f � _.... �......, ._..._._ . ..... .........._.....� _. ,�, .� _ __ .� _ _ _ _ _ 5 iu i5 20 z5 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoif Hydrograph 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbas�n {watershed} AREA 3 OFF C Input Data Area (ac) 7 25 We ghted Curve Numbe 75 67 Ra n Gage ID RAIN Composite Curve Number Area Sod Curve Sol/Surface Descnpton (acres) Group Number Pa ed pa king 8 roofs 0 09 C 98 00 75 / grass co e Good 1 16 C 74 00 Composite Area & Weighted CN 1 25 75 67 Time of ConcentraLon Sheet Flow Comp tat ons Mann ng s Rough ess Flow Le gth (ft) Siope (1) 2 yr 24 hr Ra�nfall (in) Veloc ry (ft/sec) Computed Flow T me (m n) Shallow Concentrated Flow Computat�ons Flow Le gth (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed Flow T me (mm) Cha el Flow Comp tat ons Ma ng s Roughness Flow Length (ft) Channel Slope ( / ) Cross Sect on A ea (ft ) W etted Per mete (ft) Veloc ty (ft/sec) Computed Flow T me (m n) Total TOC (m n) 20 06 Subbasin Runoff Results Total Ra nfall ( n) Total Ru off ( n) Peak R noff (cfs) We ghted Curve Number T m f C ce t t (days hh mm s) Subarea Suba ea Subarea A B C 4 0 00 0 00 100 0 00 0 00 391 000 000 3 50 0 00 0 00 011 000 000 1570 000 000 Subarea Suba ea Suba ea A B C 309 0 00 0 00 233 000 000 U paved Unpaved Unpa ed 246 000 000 209 000 000 Subarea Subarea Subarea A B C 03 0 00 0 00 525 0 00 0 00 119 000 000 5 0 00 0 00 8 32 0 00 0 00 3 86 0 00 0 00 2 27 0 00 0 00 2 56 0 72 1 18 75 67 0002004 � � Subbasin (watershed} AREA 3 OFF C � 4 4 4 � 4 3 3 r3 3 t Z � v 2 � Z c m 2 � � ' 1 1 � ' 0 0 � 0 0 � � � 2s �2 1 15 � 11 1 OS t 0 95 � 09 0 85 OS 0 75 ' in 07 �065 `0 06 c � � 0 55 05 0 45 04 � 0 35 03 0 25 02 � 0 15 01 0 OS � � Rainfall intens�ty Graph � � � � _ 1 .,,,., ,,.w .,. ____ � __ _ _ .�� 1 _ �� i E � � _ : �� _� �� 3 i � ( € 1 1 1 _ _. �,.. � _ _. _._._____m � ! E # �-- t -�—�— 1 ..,., .�.�.._ � 1 � � l �� _ � - - -- � -- � t € € i 3 7 -t_-- •- ------l- -� � _. �� _� � _� £ � � ..___. � ...... _____ ..,,.. ___, � i 1 T t � i _ � _ � � � 1 k .............�- _ � _ ..._ _ __1_. � r _____ _... _ �. _ m ____ _ 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograpn _ � ( � _____w ,�. _-. I i 5 lU l5 1U LS 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasm {watershed} AREA 3 SUB A Input Data A ea (ac) 18 19 We ghted Curve Numbe 81 43 Rain Gage ID RAIN Composite Curve Number Area So I Curve Soil/Surface Descnption (acres) Group Number 75 / grass cover Good 12 53 C 74 00 Pa ed pa k ng & roofs 5 62 C 98 00 Composte Area & Weighted CN l8 15 St 43 Time of Concentration Sheet Flow Computations Ma n g s Roughness Flow length (ft) Slope ( / ) 2 yr 24 h Rainfall ( n) Veloc ty (ft/sec) Computed Flow T me (min) Shallow Concentrated Flow Computations Flow Length (ft) Slope (1) Surface Type Veloc ry (ft/sec) Computed Flow T me (mm) Channel Flow Computations Mann ng s Roughness Fiow Length (ft) Channel Slope ( / ) C oss Section Area (ft ) Wetted Pe meter (ft) Veloc ty (ftlsec) Computed Flow Time (m n) Total TOC (m n) 18 92 Subbasm Runoff Results Total Ra fall (in) Total Runoff ( n) Peak Ru off (cfs) We ghted Curve Number T m f C t at o(days hh mm ) Suba ea Subarea Subarea A B C 0 40 0 00 0 00 100 0 00 0 00 391 000 000 3 50 0 00 0 00 011 000 000 15 70 0 00 0 00 Subarea Suba ea Subarea A B C 308 0 00 0 00 2 33 0 00 0 00 Unpaved Unpaved Unpaved 2 46 0 00 0 00 2 09 0 00 0 00 Subarea Subarea Subarea A B C 013 0 00 0 00 793 0 00 0 00 1 74 0 00 0 00 7 0 00 0 00 103 000 000 11 69 0 00 0 00 1 13 0 00 0 00 2 56 1 01 26 03 87 43 0001855 � � Subbasin {watershed} AREA 3 SUB A � 4 4 4 � 4 3 3 � 3 3 t 2 � c �. p � 2 c m 2 � � 1 , 1 � 1 0 0 � 0 0 � i — ) ► 3 — s --- � 3 3 i � � � �� ' U `o C 7 1� � � � � >2 r� !0 19 i8 17 16 5 4 3 2 , 8 � 6 5 4 3 2 1 �� Rainfall Intensity Graph � � k � i -- � � ` � f E .�� . � W_ �. _ � _, ,� _ ��__. __� -.�- _ _ ._._. � �,W. ....� �_____ �..._. _ ____e,,. � _ .._.�....... .... _ -f 1 1 � 1 ,_ _ _ ��_ �____ _ _ _ _ � s _� � � _ � f � t � � � � .,__. � _ m,_ __��_ _ ____ __� _ __.__ ___e _ _ �� _ _______ _ _ �- � _ ; ------ { � 9 t i � _k _ ,� � � _ ___ � } � _ _ �, m _ . �-�-�-__ _ _ _ _ _ � � � ¢ � ' ' � � 1_ _ _ � t i � � _ � __ __ _ _ _ 1 _ _ �_____._� ___ _ _ _ ' _ ; _ �_ _ _ � � f � � � � __. _ _ __ }_ _„___ ___ �..� _ _ . _ � �� _ _ _ m , . .�.._ . __ � _ _ p. _ _ { � � � �� j � — � b 7U 7b 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph _ � l _��_ i o w u zo 2S 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasm {watershed} AREA 3 SUB B Input Data Area (ac) 3 69 Weighted Curve Number 79 69 Ra n Gage ID RAIN Compos�te Curve Number Area Sol Curve So I/Surface Descnption (acres) G oup Number 75 / grass cover Good 2 81 C 74 00 Paved pa k ng & roofs 0 87 C 98 00 Composde Area & We ghted CN 3 68 79 69 Time of Concentrat�on Sheet Flow Computa6ons Mann ng s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (m) Veloc ty (fUsec) Computed Flow Time (min) Shallow Concentrated Flow Computat�ons Flow Length (ft) Slope ( / ) Surface Type Velociry (fUsec) Computed Flow Time (min) Total TOC (min) 28 30 Subbasm Runoff Results Tota� Ra nfall (in) Total Runoff ( n) Peak Runoff (cfs) We ghted Curve Number T me of Concentration (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 2 000 000 350 000 000 008 000 000 20 53 0 00 0 00 Subarea Suba ea Suba ea A B C 727 0 00 0 00 94 0 00 0 00 Unpa ed Unpa ed Unpaved 1 56 0 00 0 00 7 77 0 00 0 00 2 56 0 97 3 86 79 69 0002818 � � Subbasm {watershed} AREA 3 SUB B Ra�nfall Intensity Graph � 5 E 48 � 1 `€ 46 � t 4 4 _ _ _ � _ _ � _ _ _— — _ _ _-�------s--�--°- � 4 2 s _ ---_ ! 4 C i 38 —__ __ �.�.__ _, � _ _ _ _ _ �. _ _.� �______ 36 � � i d � 3 4 . _ _ � . -s- _ _ _ _ _ � --,- _.�_ 3 2 � [ .� _. 3 r2g — _ .�.__�..,. � � � 26 R 24 � � � `c 22 1 � � � __ _�. � � � , —_� � _ � _ � 1 8 _�_ � __ �, _.� 16 � 14 � � � � � _ _ _ � _ � _ _ � � _ _ � ,- � _ _ ___�-_ �-____,_ 1 0 8 -- 06 � 04 02 i 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 � Time (hrs) � Runoff Hydrograph a^ � 3 3 3 3 ' 2 2 , � Z `o c � � � 1 1� 1 � � 0� 0� � 0� 0: � 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) , Subbasm {watershed} AREA 3 SUB C Input Data Area (ac) 3 14 We ghted Curve Number 79 75 Rain Gage ID RAIN Compos�te Curve Number Area So I Curve So I/Surface Descnptwn (ac es) Group Numbe 75 / grass co er Good 2 38 C 74 00 Paved parking 8 roofs 0 75 C 98 00 Compos te Area 8 Weighted CN 3 13 79 75 Time of Concentration Sheet Flow Computat ons Mann ng s Roughness Flow Le gth (ft) Slope ( / ) 2 yr 24 hr Ra nfall () Veloaty (ft/sec) Computed Flow Time (min) Shallow Concentrated Flow Computat o s Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed Flow T me (mi ) Total TOC (mm) 19 77 Subbas�n Runoff Results Totai Ra fall ( ) Total Runoff (in) Peak R noff (cfs) We ghted Curve Number Time of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 t 00 0 00 0 00 26 000 000 3 50 0 00 0 00 009 000 000 18 49 0 00 0 00 Subarea S barea Subarea A B C 190 0 00 0 00 233 000 000 Unpa ed Unpaved Unpaved 2 46 0 00 0 00 1 29 0 00 0 00 2 56 0 92 3 97 79 75 0 00 19 46 � � Subbasm {watershed} AREA 3 SUB C � a� a a � 4 3 3 � 3 3 t 2 � v 2 � 2 `c 2 m � � ' 1 1 � ' 0 0 � 0 0 � � a2 a 38 � 36 34 32 � 3 28 26 � N 24 � 22 C Z 7 , � is �s �a � 12 1 08 06 � 04 02 � , � ' _ f Ramfall Intens�ty Graph i f t 1 �_ _ � _ _ _ � � ___ _..� .... _ _ I � j f __�__ ___�____._�__ _� _ _ _ �_ __ _____� t i —� t _ _ _ _ � _— — r � _� _ i _ _ ____ _ _ � _ _� ._.a _ r d ..._ _ _ _ ..._.. ...._ _� � � �_.._ .._._ � � ____.,_— _._._ � _, — 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph a iu is [u 1b ;t0 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasin {watershed} AREA 3 SUB D Input Data Area (ac) 2 74 We ghted C rve Number 78 68 Rain Gage ID RAIN Composrte Curve Number Area Soil C rve Soil/Surface Descript on (ac es) Group Number 75 / g ass co er Good 2 20 C 74 00 Pa ed parking 8 roofs 0 53 C 98 00 Compos te A ea 8 Weighted CN 2 73 78 68 Time of Concentration Sheet Flow Computat ons Ma ng s Rough ess Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall (i ) Veloary (ft/sec) Computed Flow Time (m n) Shallow Concentrated Flow Computat o s Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed flow T me (min) Total TOC (m ) 28 06 Subbasm Runoff Results Total Ra nfall ( n) Total Runoff ( ) Peak Runoff (cfs) We ghted Curve Numbe T me oi Conce t at on (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 000 000 3 50 0 00 0 00 0 O6 0 00 0 00 27 09 0 00 0 00 Subarea Subarea Subarea A B C 274 0 00 0 00 8 52 0 00 0 00 Unpaved Unpaved Unpaved 477 000 000 0 97 0 00 0 00 2 56 0 86 2 69 78 68 0 00 28 04 � � Subbasin {watershed} AREA 3 SUB D � 4� 4 4 � 4 3 3 � 3 3 L 2 � c � 2 :°_ 2 c m 2 � , ' 1 , ' ' 0 0 � � 0 3 i � _ m l � 3 i s — > 3 3 s > > 3 - i � > � ' ze 27 26 � 25 24 23 22 21 � 2 19 18 17 � � 1 6 v 15 w 1 4 O c 1 3 3 ' � i2 >> � os � 08 07 06 05 04 ' 03 02 Ot � 1 Ramfall Intensity Graph � -- _ � __ _ _ t � �� _ ..._ -�- ____�,_... _�--°--- �_'__•_�w� .,.._. .......... � �� ____ �_� ____ __ _ � � � ( j _ � �__ _ � .,.._ ._..._ _ _ , _ _ � _W ._ _W � .. __ I � �.� �_ �_..��.. �_____ � �_�_ _ � � } � � � � � 1 � ___ � _ __�L._ � . .. � . _-----E----------------�--- � _ _ — _ � _ # _ _ �{_ � ( � � _ � _ � ��______� __ �� __ � � � _ � _ _.�_ _ � . �.� _ t — r � i � _ . __ �_ __�. _� _ � � �. _ _ _, � i t � 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph 7 5 70 75 20 ZS 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasin {watershed} AREA 4 OFF A Input Data Area (ac) 8 93 Weighted Curve Number 74 81 Ra Gage ID RAIN Composrte Curve Number Area So I Curve SoUSurfaceDescnpt�on (acres) Group Number Paved park ng & roofs 0 29 C 98 00 75 / grass cover Good 8 21 C 74 00 Compos te Area & We ghted CN 8 50 74 81 T�me of Concentration Sheet Fiow Computations Mannmg s Roughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall (in) Veloary (ft/sec) Computed Flow Time (m n) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Veloc ty (tUsec) Computed Flow Time (m n) Total TOC (mm) 27 89 Subbasin Runoff Resutts Total Rainfall ( n) 7otal Runoff (in) Peak Runoff (cfs) Weighted Curve Number T me of Concentrat on (days hh mm ss) Subarea Subarea Subarea A B C 4 0 00 0 00 100 0 00 0 00 1 02 0 00 0 00 3 50 0 00 0 00 0 06 0 00 0 00 26 88 0 00 0 00 Subarea Subarea Subarea A B C 144 0 00 0 00 2 17 0 00 0 00 Unpaved Unpaved Unpa ed 2 38 0 00 0 00 1 01 0 00 0 00 2 56 0 68 6 67 74 81 0 00 27 53 i , Subbasin {watershed} AREA 4 OFF A � 4 4 4 , 4 3 3 � 3 3 L 2 � v 2 �a 2 c m 2 � � ' 1 1 � � o 0 ' 0 0 � � 7 ' 6 � 5 4 � U c 3 � ' � 2 � 1 � 0 � � i 4 2 a 3 3 4 — � 3 3 s � � 3 i S � i 3 i l � �� i�i i 1 S 3 i r Rainfall lntensity Graph _..—.-,-- �.�. ._.. .._._I -,,.� ____ _.._.,._ � _> _ _ � �� _ � _ � m_ m_, � _ I i � � _ � �T �j _ I � r- _ ._.._ � _ �.,,.__. �- ..� ( � � __ _ � _ _ � i � _ _ � ____ � _� _�___�_ �� 1 � } 1 ! � _ �_____ _� _ �_ __�_ .�_ �.� ( _ _ _ �.. _ �� I 1 � I � i � __�,____,..,_. _ .._._. � _„�.,w,__._. ,.... � � I t � �_(_ � _ — _ 5 iu io zu z5 30 35 40 45 50 55 60 65 70 75 80 85 90 Time (hrs) Runoff Hydrograph o w io zu z5 su sS ao a5 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbas�n {watershed} AREA 4 OFF B {nput Data A ea (ac) 1 66 We ghted Curve Number 75 04 Ra n Gage ID RAIN Composite Curve Number Area Sod Curve SoVSurtace Descripton (ac es) Group Number Pa ed park ng 8 roofs 0 07 C 98 00 75 / grass co e Good 1 58 C 7d 00 Compos te A ea 8 We ghted CN 1 65 75 04 Time of Concentration Sheet Flow Computat ons Ma n g s Ro ghness Flow Length (ft) Slope ( / ) 2 yr 24 hr Ra nfall ( n) Velocity (tUsec) Computed Flow T me (m n) Shallow Concentrated Flow Computat o s Flow Length (ft) Slope ( / ) Surface Type Veloc ty (ft/sec) Computed Flow T me (m n) Total TOC (m ) 30 OS Subbasin Runoff Results Total Ra fall ( ) Total Ru off ( n) Peak Runoff (cfs) We ghted Curve Numbe T me of Concentra[ on (days hh mm ss) Subarea Subarea S barea A B C 4 000 000 100 0 00 0 00 1 0 00 0 00 3 50 0 00 0 00 0 06 0 00 0 00 2� os o 00 0 00 Subarea Suba ea Subarea A B C 441 0 00 0 00 2 39 0 00 0 00 Unpaved Unpaved Unpaved 2 49 0 00 0 00 295 000 000 2 56 0 69 1 21 75 04 0003003 r � Subbasm {watershed} AREA 4 OFF B � 4� 4 a � 4 3 3 � 3 3 � z , C � Z m 2 c m Z � ' ' � � � ' 0 0 ' 0 0 Ra�nfall intensity Graph . 3 � 7 q i � i_ _ �_ _ _ _ � _ __ � � _ _ ' t € � ; _� _� �_ _ ___ _ _# ..�. i � i_ __ � � .� _ � � � 3 3 _ � -, __ G _ _ _ _ i 5 � � ; _� �. � _ _ _._ i � , > _ __ m _ _—_ _ i 3 _ m ; k � l � � _ --_, _ � _ r � � 2s 12 7 15 � 11 7 OS 1 0 95 , 09 o as 08 0 75 � y 07 � 0 65 0 os � � � 0 55 OS 0 45 04 ' 0 35 03 0 25 02 � 0 15 01 0 O5 � r �� 1 € � � � E � _ � _ _� _ � � 1 � � 9 r _�- ---�----- � _ _ _ .�. � _ __ _._� _ _ _ __ � _ � i _ _ _�.� �_ �,� � �� 1 E t a __ � � i � 1 4 _ _ .�.� � � _ _ �. m„� ____ � _ � _ 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) � Runoff Hydrogreph � d � _ � t i o lU la zU zS 3U 3S 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasin {watershed} AREA 4 SUB A Input Data Area (ac) 17 45 W e ghted Curve Number 82 93 Rain Gage ID RAIN Compos�te Curve Number Area Sol Curve So I/Surface Desc pt on (acres) Group Number 75 / g ass cover Good 10 95 C 74 00 Paved park ng 8 oofs 6 48 C 98 00 Compos te Area 8 We ghted CN 17 43 82 93 Time of Concentrat�on Sheel Flow Computat ons Mann ng s Roughness Flow Length (ft) Sbpe(/) 2 yr 24 hr Ra nfall () Veloc ty (ftlsec) Computed Flow T me (m n) Shallow Concentrated Flow Computations Flow Length (fl) Slope ( / ) Surface Type Veloc ty (fUsec) Computed Flow T me (m n) Channel Flow Computat ons Mann ng s Roughness Flow Length (fl) Channel Slope ( / ) Cross Sect on Area (ft ) Wetted Pe meter (ft) Veloc ry (Wsec) Computed Flow T me (m n) Total TOC (m n) 28 53 Subbasin Runoff Results Total Ra nfall ( n) Total R noif { n) Peak Ru off (cfs) We ghted C rve Number T me of Co ce t t (d ys hh mm ss) Suba ea Subarea Suba ea A B C 4 0 00 0 00 100 0 00 0 00 1 5 0 00 0 00 350 000 000 0 07 0 00 0 00 23 04 0 00 0 00 Subarea Subarea Subarea A B C 354 0 00 0 00 � 2s o 00 0 00 Unpaved Unpa ed Unpaved 1 81 0 00 0 00 326 000 000 Subarea Subarea Suba ea A B C 013 0 00 0 00 712 000 000 08 000 000 1 76 0 00 0 00 4 71 0 00 0 00 5 32 0 00 0 00 2 23 0 00 0 00 2 56 1 10 22 26 82 93 0002832 ' ' � t ' � ' � � r � � , � � ' ' i , Subbasm {watershed} AREA 4 SUB A 4 4 a 3 3 3 3 C 2 �- 2 � 2 `c m 2 � t t t 1 0 0 0 0 w � `o c 3 � ,1 2 >� ?0 '9 8 7 6 5 4 3 2 1 � 9 8 7 6 5 4 3 2 1 Ramfall Intensity Graph ' � _ _-- — � I ' __ _ _ _._�__ _, _. __ r � _ � � _ � ` _ m � _ � _____ � _____z __m _ . w _ , .. __ _ _ t____ i t � � �, _ _ _ r -t _ �_, �__ ___ � k � � 3 �� . __,_ _ � � _ .� i _ � �_ _ _ ' T i � � � 7 _ .� _,_._____� ... � � W �____._��__ 1 . �_.__�_, _W___� __ _ _ i_ _, __� � _ . r_9 � _ � � � 1 � _ ,-- "t � _ _ _ � � _ � _._ ______._ _ I � j t � € � t � I � —. _ � _ ._ _ _ � �_ d I � � { _ � �� ( � _ ___ __ _ W __. _ _� _ � _� � _ _ � _ f �� `.� _' _ _ -. � r _ _ _ s-- -- � t �____.. _�_�___ � _ � _ _ _ � �1 I � _� _ _ _ _ _ _ _ _ ..__ _�_ __ _� _ [ j + _ _ � _ _ _ � _ _ _ � ______�_�__ � � 5 to 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph 5 iu 7b ZO 2b 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Subbasin {watershed} AREA 4 SUB B Input Data A ea (ac) 2 3� We ghted Curve Number 79 28 Ra n Gage ID RAIN Compos�te Curve Number Area Sol Curve So I/Surface Descnpt on (acres) Group Number 75 / grass cover Good 1 81 C 74 00 Pa ed parking 8 oofs 0 57 C 98 00 Compos te Area & Weighted CN 2 32 79 28 T�me of Concentration Sheet Flow Comp taUons Ma ngsRoughness Flow Length (ft) Slope ( / ) 2 yr 24 hr Rainfall ( n) Velociry (ft/sec) Computed Flaw T me (m n) Shallow Concentrated Flow Computat ons Flow Length (ft) Slope ( / ) Surface Type Vetociry (ft/sec) Computed Flow T me (min) Channel Flow Computations Man g s Rough ess Flow Length (ft) Channel Slope ( / ) Cross Sedion Area (ft ) WettedPermeter (ft) Veloaty (fVsec) Computed Flow T me (mm) Total TOC (m ) 23 19 Subbasm Runoff Results Total Ra fall (in) Total Runoff ( ) Peak Runoff (cfs) We ghted Curve Number T m f Co ce t t (days hh mm ss) Subarea Subarea Subarea A B C 4 000 000 100 0 00 0 00 27 000 000 350 000 000 0 09 0 00 0 00 1821 000 000 Subarea Subarea Subarea A B C 195 0 00 0 00 2 15 0 00 0 00 Unpaved Unpaved Unpaved 2 37 0 00 0 00 t 37 0 00 0 00 Subarea Subarea Subarea A B C 03 0 00 0 00 913 000 000 1 42 0 00 0 00 5 000 000 8 32 0 00 0 00 421 000 000 361 000 000 2 56 0 89 261 79 28 0002311 ' � Subbas�n {watershed} AREA 4 SUB B , 4r 4 4 , 4 3 3 1 3 3 r 2 c ' _ 2 � 2 � � 2 � , 1 1 , , � o 0 � 0 0 ' d � 3 i y_ _ _ _ _ _ _. _ > l ; _ _� � .. __ +— _ _ i I i�--�.. ________� _ � _� 3 ; _ � _ �_ _ i � i � ) 4 1 { ; ____ ___� _ — � �— � _ _ � 1 I I i a , , _� _ _ _ I ; __ ___ _ 1 � _ _ � ' z� 2s 25 � 24 23 22 21 � 2 19 18 17 16 � � 15 � 14 `0 13 c � 12 , 11 1 09 08 � 07 06 OS 04 ' 03 02 O1 � ' Ra�nfail Intensity Graph e � i _ _. _ ___ � _ _ _� _ � � _ _ ___ ._ �. _____ W, d _ _._ i ----€ _ _ '- _ I � _� i 9 r _, l _ � �� — E ( � i � t ( _ �— _ _ _ _—t _— t � G f_ � i t _____�_� _ _ _ � �7 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Runoff Hydrograph 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Time (hrs) Junct�on Input SN Element Invert GroundlRim Ground/Rim Inrtial Indial Surcha ge Surcharge Ponded Mmimum ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe Elevation Ofiset Elevation Depth Cover (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft ) (m) 1 Jun-07 635 00 642 00 7 00 635 00 0 00 0 00 642 00 0 00 0 00 2 Jun-02 640 50 644 50 4 00 640 50 0 00 0 00 644 50 0 00 0 00 � � � � ' , 1 � � I I � ' � � ' � , I II � � � , l� Junct�on Results � SN Element Peak Peak Max HGl Max HGL Max M n Average HGL Average HGL T me of T me of Total Totai Time ID I flow Lateral Elevation Depth Surcharge Freeboard Ele at on Depth Ma HGL Peak Flooded Flooded Inflow Attained Attained Depth Atta ned Attained Atta ned Occurrence Flood ng Volume Atta ned Occurrence � (cfs) (ds) (ft) (ft) (ft) (ft) (ft) (ft) (days hh mm) (days hh mm) (ac ) (m n) 1 Jun-01 7 81 0 00 635 80 0 80 0 00 6 20 635 07 0 07 0 03 54 0 00 00 0 00 0 00 2 Jun 02 10 37 0 00 653 00 12 50 0 00 0 00 640 63 0 13 0 03 49 0 04 01 0 15 30 00 ' ' �� l___J � I I L� , , � � � C� � ' i 1 � Pipe Input SN Element Length Inlet Inlet OuUet Outlet Total Average P pe P pe Pipe Mann ng s E trance E t/Bend Add t o al In t al Flap No of � ID In ert 1 ert Invert In ert Drop Slope Shape D ameter or Width Roughness Losses Losses Losses Flow Gate Barcels Elevat on Offset Elevat on Offset He ght (ft) (h) (ft) (ft) (ft) (ft) ( �) ON bN (�s) i L nk O7 45 00 635 00 0 00 634 70 0 00 0 30 0 6700 CIRCULAR 15 000 15 000 0 0130 0 5000 0 5000 0 0000 0 00 No 2 � 2 Link 02 17 00 640 50 0 00 640 40 0 00 0 10 0 5900 CIRCULAR 15 000 15 000 0 0130 0 5000 0 5000 0 0000 0 00 No 2 �� ' �-, I I �J ' ' � � � , � � � t� � � ' r Pipe Results � SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total T me Froude Reported ID Flow Peak Flow Capac ty Des gn Flow Velociry Time Depth DeptN Surcharged Numbe Condd on Occurrence Ratio Total Depth Rabo � (cfs) (days hh mm) (cfs) (fUsec) (m n) (ft) (m�n) 1 L k 01 7 81 0 03 54 10 55 0 74 4 71 0 16 0 80 0 64 0 00 Calculated 2 Link 02 10 19 0 03 53 9 91 1 03 4 62 0 06 1 25 1 00 0 00 > CAPACiI'Y �JI , , ' , � 1 L_ r 0 � � � � i � � �� Storage Nodes Storage Node Pond 1 Input Data Invert Ele aUOn (ft) Max (Rim) Elevation (ft) Max (R m) Offset (ft) Indial Water Ele aton (ft) I tal Water Depth (fl) Ponded Area (ft ) Evaporation Loss Storage Area Volume Curves Storage Curve Pond 1 Stage Sto age Storage Area Volume (ft) (ft ) (ft ) 0 25043 0 000 1 29748 27395 50 4 36042 126080 50 635 00 642 00 7 00 635 00 0 00 0 00 0 00 , ' � ' , ' ' � , r , � , � , ' � , , 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 Z � 2 OI +a 1 N 1 1 1 , 1 1 1 1 0 0 0 0 0 0 0 0 0 Storage Area Volume Curves Storage Volume (fN) 0 10 000 20 000 30 000 40 000 50 000 60 000 TO 000 80 000 90 000 100 000 110 000 120 000 4 4 9 — — — — — --�— -- --- --- — — — ---- --- 3 8 3 7 3 g — — --- — � _ � _ .!_ g 5 3 a-- — - 1 -- --- s 3 i 3 2 — -- -- — -- —� — — — -- 3 � — — --- � - --�— — — -- — Y-- — 3 3 3 g� _._ __ _ _ . � _ y 8 ---- — — � — — — — �— — — -- 2 7 � 2 s— — -- — — — 2 5 3 � 2 4 f 2 g-- [ --- --_ .-� _____� _ �.._ — � _` — 2 E Z 2 � � — -- — — — — — ---�--- — — — — — — — — — — 2 2 2 9 --- — — — — — -- — --t-- — -- --� — — — — -- '1 g_ _ _ _ .. � � — — --� — — — — — — — '1 � 1 € � 6 � — -- — _ — — — — — ---- 1 5 — —� — — — — — --�— — — — — — — — — 1 4 � 3 � � — — — '1 2 � I 1 � � � -- _ — -- — — — — — _ -T'— — — -- — 1 9 � 0 g— � � -- — —�-- _ _—j---- -- — — — — 0 �_ � _ � — -- °- — — — � — _— — — — — — 0 — (--- ' E s-- — - ---I--- - — - �-- - - - - - 0 [ I � s- - --- --- -- -_ __ _-_ _ _ _ - o a � � o � 3 -- -€-- ----- � �- -- --� — — -- — — 0 2 — �---- I — — — — — — — 0 � � � 0 0 t- f p �a uuu [b uuu [i uuu [ts uuu [9 UUU 3U UUU 37 000 32 000 33 000 34 000 35 000 36 OOi Storage Area (ft') — Storage Area — Storage Volume 9 B 7 6 5 4 3 2 1 9 B 7 6 5 4 3 � v d � 9 +� � B 7 6 5 4 3 2 1 9 B 7 s s a 3 2 1 Storage Node Pond 1 (cont�nued) OutFlow Weirs SN Element We r Flap Crest C est Length We r Total D scha ge lD Type Gate Elevation Offset He ght Coe�cient (ft) (ft) (ft) (ft) 1 P7 EmergW er Trapezo dal No 637 60 2 60 20 00 1 00 3 33 2 P1 We 1 Side Flow No 636 50 1 50 28 00 1 00 0 61 Outflow Orifices SN Element Or f ce O fce Flap C rcular Recta gula Redangular Onfice Orrf'ce ID Type Shape Gate O fce Onfce Orfce In ert Coeffcient D ameter He ght W idth Elevation ( n) ( n) (in) (ft) 1 P1 ORIFACE7 Side CIRCULAR No 2 00 635 00 0 61 2 P7 ORIFACE2 S de Rectangular No 72 00 24 00 635 30 0 63 Output Summary Results Peak Inflow (cfs) Peak Lateral Inflow (cfs) Peak Outflow (cfs) Peak Exfltrat on Flow Rate (dm) Max HGL Ele at on Atta ned (ft) Max HGL Depth Atta ned (ft) Average HGL Elevabon Atta ned (ft) Average HGL Depth Ariained (ft) Time of Max HGL Occurre ce (days hh mm) Total E�Itrat on Volume (1000 fN) Total Flooded Volume (ac n) Total Time Flooded (m n) Total Retent on T me (sec) 29 21 29 21 781 0 00 636 39 1 39 635 19 0 19 0 03 54 0 000 0 0 0 00 , Storage Node Pond 2 � Input Data Invert ElevaUon (ft) 640 50 Max (Rim) Elevation (ft) 645 00 ' Max (R m) Offset (ft) 4 50 In �al Water Ele at on (ft) 640 50 In t al Water Depth (ft) 0 00 Ponded Area (ft ) 0 00 Evaporat on Loss 0 00 � Storage Area Volume Curves Storage Curve Pond 2 ' Stage Storage Storage Area Volume (ft) (ft ) (ft ) 0 20029 0 000 4 27373 94804 00 , t ' ' � � 1 ' � ' � ' ' , w m OI r N Storage Area Volume Curves Storage Volume (fN) 0 10 000 20 000 30 000 40 000 50 000 60 000 70 000 80 000 90 000 4 q 3 9 -- - - --- - - - -- - - - - - - - -� - -- -- - - - 3 38 � 3 37 3 3 6 -- - - -�-----� 3 35 3 34 - -� � 3 33 3 32 --- - --- ---- --+- - 3 31 - - -- - - - ---- - ------r -.��- - 3 3 j 3 2 9 - - -4- -- 3 2 2 8 - - - - -- -- - -- -- -t -----�-- -- 2 27 y 2 6 - - ---- -- - - -- - --' - - -- - - 2 25 3 p � 24 2 2 3 -- - -- - - --- - ----�-- -- - s- 2 22 2 2 1 - -- --- -- -�- -« y 2 E 2 '1 9 - - - - -- - --- - - [ - - -- -+---- - --�-- -- 7 � 8 -- - - -- -- --- - --- -----t- - - - 1 17 1 1 6 --- - - - --� - - �---- 1 1 5 - - -- -- - -- - -� € - - - - 'I 14 � 13 - - - 1 72 � 1 11 1 � -- - - -- - �---- - -- - -- --- - --- - -- 'I D9 0 D8 -- - - - -- --- - j -- - - - -� - - 0 D7 - -- - ----- - --- -- - - � --r �- 0 D 6 -- - -- - - - - - - � - -> --- -- - - 0 DS- -- - -- - - - - - -- -� �- -i--- ---- 0 D4 0 D3 -- - - - - -r- - - { - - -�---- ---- - -- - 0 D2 - - - - � - - - - - -- � - � -�- - - -� - 0 D1 E � 0 0 - - - - 0 20 000 21 000 22 000 23 000 24 000 25 000 26 000 27 000 Storage Area (it ) - Storage Area - Storage Vo�ume 9 B 7 6 5 4 3 2 1 9 8 7 6 5 4 3 2 1 � d 07 9 :� N B 7 6 5 4 3 2 1 � 3 1 S s 3 2 � ' ' ' � ' , r , � � � � � ' � ' � , Storage Node Pond 2 (contmued) Outflow Weirs SN Element We r Flap Crest Crest Length Wev Total D scharge ID Type Gate Elevation Offset Height Coefficient (ft) (ft) (ft) (ft) 1 P2 EmergW er Trapezo dal No 643 60 3 10 20 00 1 00 3 33 2 P2 W e r1 S de Flow No 643 00 2 50 26 00 10 00 0 61 Outflow Orifices SN Element OnFce Orrfce Flap Circular Rectangular Rectanguiar Onfice Orfce ID Type Shape Gate O�ce O�ce Onfice Invert Coefficient D ameter Height W dth Elevat on (m) (in) Qn) (ft) t P2 Or facel S de CIRCULAR No 2 00 640 50 0 61 2 P2 Onface2 Side Rectangular No 12 00 24 00 640 90 0 63 Output Summary Results Peak Inflow (ds) Peak Lateral Inflow (cfs) Peak Outflow (cfs) Peak E�Itration Flow Rate (cfm) Max HGL Elevat on Attamed (ft) Max HGL Depth Attained (ft) Average HGL Elevation Atta ned (ft) Average HGL Depth Attained (ft) T me of Ma HGL Occur e ce (days hh mm) Total Exf Itrat on Volume (1000 ft) Total Flooded Volume (ac n) Total Time Flooded (min) Total Retent on T me (sec) 28 84 28 84 10 37 0 00 642 44 1 94 640 71 021 0 04 01 0 000 0 0 0 00 � � � � � � C� 1 �� 1 � , C1 � � � 1 C'l 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