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Home My WebLink AboutCorrespondence APPLICANT 3/19/2008 Page 1 of2 L1MBIRD Andrew From Sent To Cc Subject KNAPEL Carole Wednesday, March 19,2008 1 55 PM ERNST Dennis L1MBIRD Andrew FW Final Plat Item - Lot 11 Spillway Easement FYI From: Andrew Haliburton [mallto andrew hallburton@kpffclVllpdx com] Sent: Wednesday, March 19, 2008 1 49 PM To: KNAPEL Carole Cc: Danny Denning, Rachel Gnffith Subject: RE Final Plat Item - Lot 11 Spillway Easement Concise We'll take this to mean the City approves the memo and that the proposed easement addresses the onglnal review comment It has been added to the plat drawing, rather than recording by separate document Many thanks, Andrew From, KNAPEL Carole [mallto cknapel@cl spnngfield or us] Sent: Wednesday, March 19, 2008 1 42 PM To Andrew Haliburton Cc: Danny Denning Subject: FW Final Plat Item - Lot 11 Spillway Easement Andrew and Danny, Is this the confirmation that you need? Carole From' ERNST DenniS Sent: Wednesday, March 19, 2008 10 04 AM To: KNAPEL Carole Subject: RE Final Plat Item - Lot 11 Spillway Easement KPFF will need to show that on the plat or create the easement by separate document From: KNAPEL Carole Sent, Wednesday, March 19, 2008 9 46 AM To: ERNST DenniS, UMBIRD Andrew, BENOY Leslie Cc DONOVAN James, WALTER Enc, VOGENEY Ken, Andrew Haliburton Subject: FW Final Plat Item - Lot 11 Spillway Easement DenniS, In a telephone conference With Ken Vogeney, Andrew Haliburton, and you, this solution was developed Does this meet your expectations for what needs to be Included In the plat application? 3/19/2008 Date ReceIved 4r ;z.?oL- Planner AL Page 2 of2 Carole From: Andrew Haliburton [mallto andrew haliburton@kpffclvllpdx com] Sent: Tuesday, March 18, 2008 11 16 AM To: KNAPEL Carole Cc: cmoulds@peacehealth org, FARRINGTON Phil (SMTP), Danny Denning Subject: Final Plat Item - Lot 11 Spillway Easement Carole, In response to the 2/26/08 meeting at City hall, we are submitting for "pre-approval" the attached memo and sketch regarding the pond spillway at the northerly side of the site We believe this addresses Dennis' onglnal review comment and the subsequent discussions City staff present at that meeting were Dennis, Les, Enc, Jim and yourself This easement was also the subject of the conference call on 2/28/08 With you, Ken Vogeney, Dennis and me We plan to submit the memo With the resubmlttal of the plat drawing sheets The easement shown In the sketch has been added to the drawings My hope IS that we can address questions/concerns now, thereby facilitating the main review Many thanks, Andrew Dat" necelved.~/;240.r Planner, AL 3/19/2008 Page 1 of 1 L1MBIRD Andrew From Sent To Cc Subject Attachments KNAPEL Carole Wednesday, March 19,2008946 AM ERNST Dennis, L1MBIRD Andrew, BENOY Leslie DONOVAN James, WALTER Enc, VOGENEY Ken, Andrew Haliburton FW Final Plat Item - Lot 11 Spillway Easement MEMO-080229-PH-SplllwayEasement doc, DWG_080307 _REV-Spillway-Easement pdf Dennis, In a telephone conference with Ken Vogeney, Andrew Haliburton, and you, this solution was developed Does this meet your expectations for what needs to be Included In the plat application? Carole From: Andrew Haliburton [mallto andrew hallburton@kpffclvllpdx com] Sent: Tuesday, March 18, 2008 11 16 AM To, KNAPEL Carole Ce. cmoulds@peacehealth org, FARRINGTON Phil (SMTP), Danny Denning Subject: Final Plat Item - Lot 11 Spillway Easement Carole, In response to the 2/26/08 meeting at City hall, we are submitting for "pre-approval" the attached memo and sketch regarding the pond spillway at the northerly side of the site We believe this addresses Dennis' onglnal review comment and the subsequent discussions City staff present at that meeting were Dennis, Les, Enc, Jim and yourself This easement was also the subject of the conference call on 2/28/08 with you, Ken Vogeney, Dennis and me We plan to submit the memo with the resubmlttal of the plat drawing sheets The easement shown In the sketch has been added to the drawings My hope IS that we can address questions/concerns now, thereby facIlitating the main review Many thanks, Andrew 3/19/2008 Date r'(ecslvea -iq/.:hPI Planner AL k If Consulting Engineers US Bancotp Tower, 111 SW 5th Avenue, SUite 2500 Portland, OR 97204 (503) 227-3251 FAX (503) 274-4681 MEMORANDUM DATE TO CC FROM RE March 3, 2008 Carole Knapel, City of Spnngfield Andy Llmblrd, City of Spnngfield Ken Vogeney, City of Springfield Philip Farrington, PeaceHealth Andrew Haliburton, KPFF RlverBend Plat Spillway Easement PROJECT NO 304011078 This memo was prepared In response to the City of Springfield's 2nd review (dated 2/12/08) of the PeaceHealth RlverBend SubdiVISion Final Plat regarding the spillway from the detention pond located on lot 11 of the subdiVISion (reference Sheet 2) In conslderalion of this Issue, the follOWing apply 1 The detenllon pond IS designed to contain the 25-year storm event as reqUired In section 4033 of the City of Spnngfield's Engmeenng Design Standards and Procedures Manual Therefore, the spillway onto lot 11 will only be used In events exceeding the 25-year storm 2 In events exceeding the 25-year storm, the spillway directs flow that cannot be received by the downstream system and cannot be contained In the detention pond Into an eXlsling drainage channel This channel functioned as the pre-development outlet for the Western Basin of the subdivISion 3 For all storm events, the flow In thiS channel Will be less than the pre-development flow from the Western Basin Per the Stom/water Dramage Report for RlVerBend SubdiVision, the pre- and post- development flows for thiS channel are as follows a 25-year storm I Pre-development flow = 33 53cfs II Post-development flow = Octs b 50-year storm I Pre-development flow = 38 75cfs II Post-development flow = 12 45cfs c 1 DO-year storm I Pre-development flow = 44 04cfs II Post-development flow = 24 19cfs In response to the CIty'S review comment, an easement will be Included on the plat to proVide for spillway overflows The easement Will begin at the spillway and end at the subdiVISion boundary line The easement Will be centered on the natural drainage flow line Date Race,ved:4:!;oPf Planner AL Page 1 of 1 . , , ft-- UOO -rt., 1.. "500 II.- Z 7.-OD [~o't lO] ( -("f., Z~oo l r- ~\. I "- " ~,', " --. '\p ~ l ST~~ I I ...,~. v ~ "'-:;:;> P ui3'uc., ):::(ZA I~'r&€ (/, /fOO ~ 1 E....$'OM,ENl APrr:Dx. 2\/ --p :... l p ,~~o,s(O . ' ~\ \ ... , ""I "L \.-v--- \ 1\ I /~ 'I \0,/1/ ,~ \ r;-- ~ \\ \ \ .....- ,;--- Lot 11 It. 600 0-/> - Sf'l\.\..Wv't:"f L__ - ])~rE:N'ne~ f'oN\) Dat(1 Received Planner, AL 3/JfI/JfJMY I .