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HomeMy WebLinkAboutResolution No. 239-03 77777777777—:7- 7777777 • RESOLUTION WHEREAS, the City of Rochester supports and administers an effective flood plain management program through the enforcement of its Zoning Ordinance; and, WHEREAS, the Rochester Zoning Ordinance is consistent with flood plain management standards established by the Department of Natural Resources of the State of Minnesota and the Federal Emergency Management Agency of the United States; and WHEREAS, the Minnesota Department of Transportation proposes to amend the Floodway and Flood Fringe boundaries and related 100 year flood protection elevations for a portion of Willow Creek starting at approximately 1650 feet north of and downstream of the flood control structure WR-6A to a point approximately 1700 feet east of and downstream of the TH 63 right-of-way; and, WHEREAS, the attached exhibit identifies the property for which the request is made to remove the floodway and flood fringe overlay zoning districts as part of an amendment to flood insurance maps adopted by the Federal Emergency Management Agency in February, 1998. NOW, THEREFORE, BE IT RESOLVED by the Common Council of the City of Rochester that the City hereby supports the proposed amendment to the Floodway and Flood Fringe boundaries and related 100 year flood protection elevations for a portion of Willow Creek •tarting at approximately 1650 feet north of and downstream of the flood control structure WR- 6A to a point approximately 1700 feet east of and downstream of the TH 63 right-of-way . BE IT FURTHER RESOLVED that the Common Council intends to adopt an ordinance to amend the City of Rochester Zoning Ordinance to implement the proposed amendment if the proposal is deemed acceptable by the Federal Emergency Management Agency and the Minnesota Department of Natural Resources. PASSED AND ADOPTED BY THE COMMON COUNCIL OF THE CITY OF ROCHESTER, MINNESOTA, THIS DAY OF AZ-9c( , 2003. I'RE'SIDENT OF SAID COMMON COUNCIL ATTEST: CITY CLERK APPROVED THIS / DAY OF , 2003. G MAYOR OF SAID CITY 4keal of the City of Rochester, Minnesota) Zone2000Tloodmap.W it lowCreek REQUEST FOR COUNCIL ACTION MEETING DATE:Apnl21,2003 AGENDA SECTION: ORIGINATING DEPT: ITEM NO. Attachments: PUBLIC HEARINGS PLANNING 1. Staff Report dated February 25,2003 ITEM DESCRIPTION%Zoning District Amendment#03.05 by the Minnesota Department of PREPARED BY: 2. Minutes of the CPZC Hearing—March 12,2003 Transportation to amend the Floodway and Flood Fringe boundaries and John Harford,Se 'or related 100 Year Flood Protection Elevations for a portion of Willow CrecL Planner 3. Revised FIRM map of the area. April 16,2003 4. Letter from MNDNR dated March 26,2003 5. Letter from Yaggy Colby dated April 14,2003 The purpose of the proposed zoning district map amendment is to recognize the road and bridge,and stormwater improvements proposed and scheduled for construction by MNDOT for the US 63 South project. In the Fall of 2002 the Minnesota Distribution: Department of Transportation submitted to the Minnesota Department of Natural Resources for review a request for a floodplain amendment to the Flood Insurance Rate Map(FIRM)on a section of Willow Creek from the Willow Creek Golf Course to an area east of US 63 north of the existing 4e St.,SW interchange. In October,2002 the application,known as a Conditional 1.City Clerk Letter of Map Revision(CLOMR),was submitted to the Federal Emergency Management Agency(FEMA). The MNDNR 2.City Attorney accepted the hydrologic analysis and notifed MNDOT in November,2002. In order for the CLOMR to be acted on by FEMA 3.City Administrator the city must supply a resolution indicating its support of the changes. The proposed amendment is to Community Panel 4. Planning Department File Numbers 27109CO302 and 304 dated February 4,1998 and April 17,1995. 5. Applicant—MNDOT The proposal before the Council has been amended to include only the area adjacent to 48"St.,SW and north and downstream to the area east of US 63. The proposal reviewed by the CPZC covered a longer segment of Willow but has been amended to address concems about public safety immediately downstream of the flood control structure. The MNDNR has reviewed the revised plans and has stated that the original and amended proposals are consistent with state floodplain rules. The major issues concerning the amendment at the CPZC had to do with the proposed stormwater ponds shown on the plans and with recent grading in the area not recognized by the proposal. This amendment does not address the ponds and does not approve them,it is an amendment only to the Floodway and the Floodplain boundaries shown on the FIRM and zoning map. Section 60.338 of the zoning ordinance requires that a zoning map amendment satisfies certain criteria. The amendment is consistent with the goals and policies of the comprehensive plan and furthers those policies. The area was not zoned erroneously. The 100 year floodplain will change due to road,bridge and stormwater improvements proposed by MNDOT and it is in the public interest to recognize those improvements. The proposed highway improvements will not cause a flood stage increase during construction or after construction is completed that will affect any existing buildings. Citv Planning and Zoning Commission Recommendation: The CP&ZC reviewed this proposal and recommended approval on March 12,2003. Planning Department Reconmrendation: Staff recommends approval of the amendment to the Floodway and Flood fringe districts as proposed by the applicant. Council Action Needed: The Council should request that the City Attorney prepare a resolution supporting the amended Floodway—Flood Boundary maps to be supplied to FEMA. (Note: After the construction project and surveys are complete MNDOT will submit a request for a LOMR from MNDNR and FEMA,after which the city can approve a final Foodway and floodplain boundary on the zoning map.) COUNCIL ACTION: motion by: Second by to: ' ENGINEERS '�• K \�' \` t� ! S ARCHITECTS Yt. >i 1 ..7 , \ ��� \ 'I \ YS _. - - •A. SVRY[TGRS � �i T .��� �I \\ l��-\ � � \ 'z 1 Y nx��� April.14,2003 * t fi` f(� \ � \ ��x \�4� :;1 "� ItI' I 5• ')t111 John Harford Olmsted County Consolidated Planning Dept 2 G�" \I 1�� ' \\ J 'r. ,_• �� 2122 Campus Drive S.E. Suite 100 AANYscerc AACNITEcss \@ \�1--.;�. `` II < Rochester,NlN 55904-4744 FLAPPERS I T RE:Floodplain Maps for Conditional Letter of Map Revision(CLONIR)Application U.S.Highway 63 Reconstruction -- Dear Mr.Harford: ROCHESTER OFFICE: b W Attached is a co of the updated floodplain ma t d A PY P p maps that will be submitted to FEMA to illustrate 717 Third Avenue SE o the proposed la' N 1N1 p p floodplain and floodway modifications for the U.S Highway 63 Conditional Letter y Rochester,MN 55904 -r� = 1 P `\'•, ,c °"•I of Map Revision(CLOMR). The maps include an annotated Flood Insurance Rate Map(FIRM) � � ! and our topographic work maps. These maps have been changed from the previous maps 507-288-6464 •. 'sxa l \ ' ' � t s. - ; provided to you in the following ways: \� Z \ z u� � / N $ The floodwaymodification that was proposed Upstream of 48"Street has been eliminated. Fax 507-288-5058 � '', P P P The floodway will remain as shown on the 1998 FIRM as requested by your March 18,2003 letter to Art Kalmes. $ The floodplain and floodway for the South Fork of Willow Creek south of the 40t6 Street extension was modified to reflect recent and proposed grading. The grades shown were based on a drawing provided by Barr Engineering Company as requested by Tom Hexum at the March Planning Commission public hearing. MPLSlST PAUL OFFICE $ Several other minor changes to the maps were made as requested by FEMA. These changes ✓� IJ 1 included modifying the floodplain to more accurately reflect proposed grading,showing the �--�� ', ���� -Nq'��,�,� � 651-681-9040 location of all modeled cross-sections,and extending the maps to the north to tie into the mapped floodplain. l °r I A(IZ 1 Please contact me or Art Kalmes at Polaris Group(952.881.0619)if you have any questions. AUsoN aTT OFFICE: IS ti I' /��, Sincerely, 641-424-634a gks ll �(i/� ����`� /,r y �1 RI a l I)I���uV 1 I "' jIIII"� f��,iyUl�l llr 7rin �;' e1J- �C3. iil I"a 8��� �1; Ij, ��� 1g111 't/ �f u7 ..�`�� IC�I I a( OEiAFIELD OFFICE: W ` p d � ( . �,��, Dan Schiefert I r I � 1' lc� // o 1 262-646-6855 r rti' I \) N t dyy C:Richard Freese APR 14 '):)117 \� ....i, � � F � ;III>���, 1;=.li t a; � I ` - •� t 11 Art Kalmes -?- J �-- a�' G I �i I"'sjie I >•I Iu;j,i�� i i � ' I /.t,-1 � a �� ' Jai Kals P 0 ,` ��` r t Y. < E•Tl a �i 1;� Cyr (�� y ! ii 7=t {> Y IN �1� 4;Equal Opportunity Employe 1f9 I I - 777 _ i \ems ( ���� 4� F ;� I�w� �•`J t '�1� �� � ��ii`/ �^ ��.� � +, �,IIl�Ii Jlrj�l�-fib=1 ;I) � � � \\•> / 1 ;�; •�✓2'o,'�. /! yy',/ • ,` ,.... � �� *���� /� / :\I -��\��\� \ .;may. /,.. I' - - A Page 5 City Planning and Zoning Commission Minutes I Hearing Date: March 12,2003 4 'Ded,cat,on of parkland shall be met via d ferred land dedtcatton,as recommended fhe C,t Park 8 Recreat,on De artme ,n attach ed the: memo dated February 20 Y P i Pt 9+ eg 2003 r It,I .l 0 f i;j,El •°° ° 1 I. g , j' Ii' j` i Zoning District Amendment#03-05 by the Minnesota Department of Transportation to t t if , �s _�� sibs „.! s amend the Floodway and Flood Fringe boundaries and related 100 Year Flood Protection Elevations for a portion of Willow Creek starting at approximately 1650'north of and downstream of the flood control structure WR-6A to a point approximately 1700'feet east €ff aa of and downstream of the TH 63 right of way. !• a� r^ro, r, ,rr �,6 �=I —_ g q Mr.John Harford presented the staff report,dated February 25,2003,to the Commission. The _q� ,„" w � a c Y f + staff report is on file at the Rochester-Olmsted Planning Department. M1I It,7+'+Iru��,h�s d�`ir,�a�°Nvl' P,.mF'l'tift' I tt1 '.I+(i,+y^�Ir 41fwv� 3,3r, .,ij,+x q , s I tadr h' a 51 Mr.Harford showed the FEMA flood panel of the area and described the proposed changes. I" Ms.Wiesner stated that,.on other side of the bridge at 40'"St.;SW,there is a regional storm water area. She asked if the area had been purchased. l"• ! S Ph tia a 5 I` 8'ix5v._. x }MI'�,1G r .. ii ]s Mr.Harford responded that he did not think it had been.k� W I:P I y f #� p Mr.Harford stated that Mr.Tom Hexum gave him a general.development plan for Maine Street x �u �ixf4R+ r" showing a city pond. lZt}SY 6 ( ,. P•AG wul+fi A"va+g� �g4YNi+reM'gira w �� t i, Discussion ensued re ardin which properties MnDOT had control of. t;a ctat t(,^N I ;PF dui 7 r aE11 9 9 P P t e us r 4 u ,It r r�/{ rF L ��IIyyb I{q�,� , gyp 1' eb47 sr. . tC�+i� �� +a, r �S Ms.Wiesner expressed concern with MnDOT not having ownership of property that the are A rsF� P 9 P P P Y Y 4 ry l nh,l Mr4 ,l �} d,�t tiy� °' �* <� approving changes on. She stated that she was opposed to specifying what certain areas 9 9 PP would be used for. Mr.Harford slated that the CLOMR would be preliminary approval. The zoning map would not © _ u be amended to reflect the new boundaries right away or permits issued until approved by the © r City and FEMA. He explained that the City Council would see any changes in design occurring within the corridor. Ms.Wiesner asked if the Commission would see the plans after this meeting. Mr.Harford responded no. Mr.Haeussinger asked if the culverts going under the present 63 interchange would be changed. . ji,.i� i I e:1 ; r l�l`it;'I"ir •li' t �Ilt �I Mr.Harford responded yes. "•'tIji.r °,� ;i ,it j'>i i ;i`i yisl` � E !ij;j i Mr.Bill Lesmeister of,1615 4'"Avenue SW,Rochester MN,addressed the Commission. He •i ` stated that he served on the Transportation Chamber of Commerce. He stated that the Prow jli'i''ii�}t i'f 'i j It I ,`, 11�:�it l;li i cil t ,(I h i I ii' , , , ili ,1 , ,I it} ;'j;i�ljl E'Il,l lll;(,Ij� property is currently in litigation. He stated that it would hold up the 40'"Street overpass. He r+ii 1,I it 3t I.,.I j:,r:i MINI I!!1:.l;I.l;h,:, questioned where the water flow would go. Page 6 Page 7 City Planning and Zoning Commission Minutes City Planning and Zoning Commission Minutes Hearing Date: March 12,2003 Hearing Date: March 12,2003 Mr.Tom Hexum,of 1002 North Broadway,Rochester MN,addressed the Commission. He Ms.Rivas questioned if the proposed map needed to have additional changes with regard to showed where the pond would be located on his property. He explained that,in 1998,Don changes made from the data the consultant used. Prow and Barr Engineering had everything south of 40th Street removed from the floodway and flood fringe. He stated that he spent a considerable amount of money to do so. However,now Ms.Rivas stated that,if the proposed map is not accurate,the Commission could make a it is proposed to be put back into the floodway and flood fringe. recommendation that the map be amended prior to appearance before the City Council instead of approving the request. Mr.Hexum stated that he met with MnDOT and Art Kalmes and believes that his circumstance is rectified. Len Kramer,of Barr Engineering,told him that the topography used to develop the Mr.Harford responded that any changes that needed to be made to the map would be made mapping is not reflective of the development that has occurred over the past 2-3 years. prior to going to the City Council. He identified the two areas that needed attention prior to Therefore,there needs to be corrections to the flood plain and floodway limits. submitting the application to the City Council,one being the Hexum property east of US 63 and south of 40h St.,and the Floodway designation south of 48'h SL,SW. Ms.Wiesner asked Mr.Hexum if he opposed the proposed zoning district amendment. A representative of MnDOT,Mr.Jai Kalsy(2900 481h Street NW,Rochester MN)addressed the Mr.Hexum explained that he didn't agree with it,since he paid a lot of money to Barr Commission. He staled that,although the applicant is MnDOT,the project is a joint cooperative Engineering to take it out of the flood fringe and floodway. However,his consultants have told effort between the State,City,and County. him that he will approve of the end result. He indicated that he would work out his differences with the consultants. He is comfortable with the project after speaking with Art Kalmes and Barr Ms.Baker clarified that the Commission is being asked to support the concept of changing the Engineering. maps to reflect the proposed project. The City Council would not be asked to take action to adopt a formal Ordinance changing the maps until after the construction of the project and after Mr.Art Kalmes,of Polaris Group Consulting Engineers(8200 Humboldt Avenue South, the as-builts are approved by FEMA and FEMA approves changing the maps. She explained Bloomington MN),addressed the Commission. He explained that the design before the that the project is being reviewed by the Commission at this time so that MnDOT would know if Commission was based on the mapping they had available to them. However,they are finding there is a general support from the community. that new information needs to be used. He indicated that he would gain information from MnDOT to update the maps. He explained that the topography used was data from the 2000 With no one else wishing to be heard,Ms.Wiesner closed the public hearing. aerial photos,which didn't take into consideration grading from then. Mr.Haeussinger expressed concern with wherethe lines should be drawn and what should Mr.Kalmes stated that the project would be staged such that there won't be any restrictions that actually be approved. would exceed the 100-year flood elevation shown. He indicated that the CLOMR has to be approved before modifications can occur in the floodway. Ms:Rivas moved to recommend approval of zoning District Amendment#03 05 by ttie Minnesota Department of Transportation with the recommendation'that special attention Mr.Kalmes stated that they were requested by the DNR to correct the mapping upstream from be made to two areas one the_Hexum property and the other the Floodway,tf Willow 48th Street because there were some inaccuracies above 48'h Street. Even though the project �Creek south,of 48`.1 St,SW prior.to Council approval Ms'Petersson seconded did not affect it,they decided to make the changes to the hydraulic model and mapping. In the motion. Tfie motion carried.?=1,with Mr Haeussm er,,votin nay. process of correcting the model,they found that the culverts under 111h Street were larger than the maps and model showed. Zoninq District Amendment#03. b Dallas Backh s'requestingto amend the zoning district for approximately20.09 ac s from the R-1 ixed Single Family)district to the Ms.Wiesner stated that the pond would be in the SW quadrant. She questioned how they could R-1X Mixed Single Family Extra di rict. The r ert is located alon the south side of delineate that area if they property had not be purchased yet. 20'h St.SE east of Marion Road and uth of 20` St.137'h Ave.SE intersection. A General Development Plan is bein considered oncur ntwith this application. Mr.Kalmes responded that FEMA and a lot of the state and local flood plains rules and A regulations require them to gain approval if they are doing something that expands the flood General Develo ment Plan#203 b Dallas ckhaus to be known as Wildwood Meadow. plain on someone's property. If it reduces it,they do not need approval if they are making the The applicant is proposing to develo ro located east of Marion Road and south of situation better. The proposed mapping is not the final map. If there were changes to the the intersection of 20'h Street and 37`h Av S with single family attached housing,served project,the final map would reflect it. Therefore,if MnDOT is not able to acquire the right-of- with public roadways. The propert inc des roximatel 20 acres of land over half of way to build the pond where located,it would not be mapped in the flood plain. which is currentIv designated Floodwa . A zon district amendment is bein considered concurrent with this ap li ation. Mr.Harford explained that the Commission would be approving a boundary for the 100-year flood plain not a stormwater pond... Ms.Mitzi A.Baker presented the staff eports,dated M rch 6;2003,to the Commission. The staff reports are on file at the Roche er-Olmsted Planni g Department. Discussion ensued regarding what would happen if land were not acquired. 04/15/2003 09:41 FAS ANTHONY OSTLUND L BAER 1�002/002 ROCIIESTER-OLAISTED PLANNING DEPARTMENT Off.nocIIESTER.,,7ytF ANTHONY 0 S T L U N D & B A E R, P.A. — 2122 Campus Drive SE,Suite 100•Rochester,MN 55904-4744 s0' ATTORNEYS AT LAW COUNsr or ;o RoBERTJ.' ANSEY,fR. G ut,�d OR GORp• .•` ' Email:mnsr awbAw.mm d TeD•AUCUSY'S•PO April 15,2003 March 18,2003 Mr.Art Kalmes Polaris Group Common Council 8200 Humboldt Ave.,South Suite 302 City of Rochester Bloomington,MN 55431 1514th Street S.E. Rochester,MN 55904 Dear Mr.Kalmes: Re: Zoning District Amendment No.03-05 The City of Rochester is in receipt of the Minnesota Department of Transportation zoning district amendment application covering the Floodway and Floodfringe on a portion of Willow Creek. On behalf of MNDOT the Polaris Group has submitted for approval a Conditional Letter of Ma To Whom It May Concern: Revision CLOMR to the P P ( ) Minnesota Department of Natural Reso urces and t P o the Federal We represent Franklin P.Kottschade with respe a to the above-referenced matter. We Emergency Management Agency. The Rochester Planning and Zoning Commission held a public hearing and took action on the application. The application will now be sent forward to understand that Mr.Kottschade has recently rec•;ived a Notice of Council Hearing which is the City Council for their consideration. scheduled on April 21,2003. This is to inform you that Mr.Kottschade has unsuccessfully tried to obtain engineering information from the Min:iesota Department of Transportation so that he During the city review process,however,city staff indicated their concern over the amendment to could intelligently comment at the upcoming mi:eling of the Common Council. On behalf of Mr. the MNDOT proposed Floodway boundary in the area south of 48t'St.,SW. This segment of Kottschade,we are requesting that the upcomin,;public hearing be delayed until such time as the Willow Creek is immediately downstream of the Flood Control Structure WR-6A. The city staff Minnesota Department of Transportation provii.es to Mr.Kottschade or me the engineering believes it is necessary in this area to preserve the limits established in the 1998 FIRM as a information concerning the zoning district amendment that will enable us to evaluate the measure of safety in the case of large storm events that would result in a release of stotTnwater proposed amendment and comment upon it. through the overflow spilhvay and in the case of a catastrophic failure of the Flood Control Structure. Yours truly, The City staff recommends that MNDOT agree to withdraw the amendment as proposed on that portion of the Floodway boundary south of 48"St.,SW based on the City's concern for the ANTHONY OSTL &B R,P.A. protection of the public safety and welfare. The City Council will consider this application in about one month and will determine at that time if the Floodway should be amended as you propose in the application or to keep the Floodway boundaries as they appear in the 1998 FIRM. Also,given the staff recommendation the city will withhold signing the Community Rob rt J.Tansey,Jr. Acknowledgement Letter until the City Council adopts a resolution approving the proposal. If.you have any questions concerning the area in question or the City's request please contact me RJT/djb at(507)285-8626. cc: Mr.Franklin P.Kottschade Judy Scherr,City Clerk Sincerely, l / f ohn Harfor lSenior Pla er ' BUILDING CODE 507/285-8213•GIS/ADDRESSINGMIAPPING 507/285-8232•HOUSINGRIRA 507/285-8224 90 SOUTH SEVENTH STM7,SOITE 3600,MwNEAPOLIS,MN 55402 7l� PLANNING20NING 507/285-8232-wELVSEPTIC 5071285-8345 . Telephone(btl)349-6969 Facsim le(6I1)349.6996 www.aoblaw.com .Cj(� FAX 507/287-2275 • -,W. - AN EQUAL OPPORTUNITY/AFFIRMATIVE ACTION EMPLOYER ��t z ROCt1ESTER-OLIIISTED PLANNING DEPAn1'6'IENT o µpC1lESTER;MY,1%Y 4 �_- '•FJ` \3 2122 Campus Drive SE,Suite 100•Rochester,MN 55904-4744 o- C ai�kt\�R=�� \ s\y��' yea\�'��1 t i \�`��3'��3"s� ! _ U�. '•^ COUNTY OF......:..... o ` t y��. Y C/ •\\� �(s � x I _ t��ticd>�e� nORq TED.AUGUST.Y� ........... VV \ zc'� : d - .D I:. SAY A, .. :::::.. •:::: :�:.� �t'T7�H zfid'���``t Ct a5............. . is �.3II1 ;.1 `s.1,d3731A TO:City Planning and Zoning Commission r a7r:dr rs ... h a ' } 4 m� � \\k °l FROM:John Harford,Senior Planner E 1\� DATE:February 25,2003 r RE:Zoning District Amendment#03-05 by the Minnesota Department of as ,tl _Ir. Transportation to amend the Floodway and Flood Fringe boundaries and related 100 Year Flood Protection Elevations for a Portion of Willow Creek starting at x: approximately 1650'north of and downstream of the flood control structure WR- F: ? 6A to a point approximately 1700'east of and downstream of the TH63 right-of- way. W. Applicant/Owner: Minnesota Department of Transportation 2900 48`h St.,NNV n _ Rochester,MN 55901-5848 h o° z Surveyors/Engineers: Polaris Group � r .; 8200 Humboldt Ave.,S Suite 302 Bloomington,MN 55431 Referral Comments: Referral� agencies responding had no� en 'es respo ing h k f ,� gad comments. I Report Attachments: Area Map—Figure 1; y 1998 FIRM of area; a r o ss 1 11 Proposed Changes to FIRM; tu. i Alternative"D"map of road improvements; Letters from Polaris Group to FEMA and MNDNR; — Public Notice by MNDOT; Certification of No Impacts to Insurable Property; `r;i Reason for New Hydrologic Analysis; s M BUILDING CODE 507/285-8213-GIS/ADDRESSINGJMAPPING 507/285-8232•HOUSINGIHRA 507/285-8224 w y ti' y - �- PLANNING20NING 507/285-8232•WELl15EPTIC 507/265-8345 ' • ` � FAX 507/287.2275 • W _ A ,� AN EQUAL OPPORTUNITY/AFFIRMATIVE ACTION EMPLOYER ' Development Review: General Development Plan: A GDP covers the Kottschade property. Proposed Use or Development: The MNDOT proposes to change the Wetlands/Floodplains: There are wetland areas located within the Floodway and Flood Fringe boundaries of floodplain,however the CLOIvIR will have the existing zoning map under the provisions no effect on those wetlands. The MNDOT of 62.821. The proposed amendment to the is required to replace wetlands filled as a 1998 FIRM reflects the changes in base part of the US 63 improvements project. flood elevations caused by culvert/bridge improvements and the related fill necessary Staff Analysis and Recommendation: to construct the US 63 improvements on 40'h and 48'h Streets,SW and on US 63. The Amendments,to the Floodplain boundaries of the Flood Insurance Rate Map(FIRM)must Floodway will be modified along with slight be reviewed by the Minnesota Department of Natural Resources and then the Federal modifications to the Flood Fringe. Emergency Management Agency. The applicant has submitted this CLOMR to the MNDNR and they have accepted the hydrologic analysis. (See MNDNR letters dated Size and Location: The 100 year floodplain area under November 7,2002 and November 25,2002.) The CLOMR was submitted in October, consideration for this Conditional Letter of 2002 to FEMA for review. Map Revision(CLOMR)starts at approximately 1650'north of and The City of Rochester can take action to accept the proposed changes to the FIRM but downstream of the flood control structure by cannot take final action on the zoning map amendment until FEMA approves the LOMR. the Willow Creek Golf Course and This will occur after construction is completed and as-built survey information is extending to the area downstream of and generated and submitted for review by FEMA. The Council will pass a resolution east of US 63 north of the truck stop where accepting the proposed changes that may be submitted to FEMA,with final action on an it ties into the floodplain boundaries ordinance after the LOMR is approved by FEMA. established through a previous Letter of Map Revision(LOMR)completed in 1998 for the The October 10,2002 letter from Polaris Group to the Federal Emergency Management Prow property. Agency explains the impacts and results of the highway improvement project. Briefly they are as follows for Willow Creek and then for the South Fork Willow Creek. Existing Land Use: The proposal covers a golf course,land identified as future wetland replacement Willow Creek: area,undeveloped farmland,an existing commercial/industrial area west of US 63, 1. New east frontage road causes a modification to the flood fringe east of US 63; undeveloped land east of US 63,and 2. The US 63 crossing of Willow Creek will include 4 large box culverts and the developed and undeveloped lands east of US crossings by Commercial Dr.,Woodlake Dr.,and 401h St.will have the same cross 63 and north of St.Bridgett's Road. sections or flood flow capacity. Along with creek improvements(Commercial Dr. and a berm on the north side of the creek acting as dikes)the flood plain will be Land Use Plan: The bulk of the land is identified as reduced in size although the base flood elevation does not change significantly Commercial or Industrial on the Land Use since the properties will need to be elevated; Plan map,with some areas near the 3. A dike will be built south of 401h St.,SW changing the Floodway flow along with upstream terminus shown as Low Density a stormwater pond reducing the extent of the floodplain in this area; Residential. 4. 4 culverts will be placed under 48'h St.allowing the same flood stage; 5. there are no major changes to the majority of the floodplain in the golf course or Zoning: There are R-1,R-2,B-4 and M-1 zoning city park along 11'h Ave.,SW although the base flood elevation is reduced in districts located within this floodplain under certain areas. review. 'f I'. i'al •_ v...�ti' `� +T'>>'-�4 �.t �' South Fork Willow Creek: = -T ' � i ti c �` y { '"t [ ^rF-;." r �` . 1. The extension of St.Bridgett's Road will split the flow within the subwatershed, and along with the need for stormwater ponding the size of the floodplain will expand slightly east of the new St.Bridgett's Road;. 2. The extension of 40`h Ave,east will not allow overtopping of the road but the 1� r •' ' - ' '`' `� � fi� ��,�, �.,�,��.,\' increased culvert size will provide additional capacity with the resulting floodplain widening in some areas and narrowing in others as shown on the map; - 3. The fill placed for the exit ramp in the southeast quadrant of the interchange will cause the floodplain to be moved further east but again with minimal on impact P U new floodplain or base flood elevations. , �: Additional floodplain modifications were made at the request of MNDNR to"update and ~ \x', F 9 t+1q, ' L!l .moo, correct the Willow Creek floodway and floodplain upstream of 48th St.,SW". �� " �� , J~ y 3 * , .. '� ten: y � 'r !4.*•i.. `"1 `� ,.-' �/' f Federal rules require that where a base flood elevation is increasing by 0.5'or more the tl � �; ', �'�-=�T ; ;� '•. I '�1,-�--� -�''`" �_ property owners are notified. Where the base flood elevation is increasing by 1.0'or more the affected property owners must concur with the project applicant. The information supplied indicates that there are locations where the base flood elevation will41 t ak increase by 0.5'but not 1.0'or more. })a The staff recommends that the CPZC approve the proposed amendment to the floodwayG ?r r I and fringe areas as shown on the enclosed plans based on the submittal meeting the j �.� ;fir �•� � �t•.� . 1 F�-f��r � ���1' �(�s FEMA Technical Conditions and Criteria according to the MNDNR. The staff will `• '• ��`` Y J3' '"" 4 `�' y It: I ; �N� U recommend to the City Council that they accept the proposal,adopt a resolution that it is in keeping with the comprehensive plan and intent of the zoning ordinance,and transmit _Z b, ? 3ff b � Jfr � the resolution to FEMA and the NMNR. !;�, 40tt e 6 i R } _1 Willow Creek t 'il¢a ` g +fir '` / South Fork of ;; Willow Creek %/� y�� ',C�+ j .✓) -._ __ �.r`y �C�'"�- Is, + r ;fit~L , t. �, �1 �;� \I1.;9 8\� I•r:�.�n I --,1i �Y • d.5 0 0.5 1 Miles E FIGURE 1 Highway 63 Reconstruction ' � � OImsOCounty, MN s - - .. 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HONVHJ2IH.LNI ,, '�7� -' '1• Hd.LL allo;gvia a3IdIQON1 ;�j �� ) �\ � �� �Weis / �a•' ,er ��! 5.�� \� {{44.,1�.�"�^�a `�'f'�� i��. ZIN CHID . � \�� �4i;`�i,.�,''iS. �F�,,,pY n `L`+J h�d��. i � ^�^ s:�S���{� ��� ��'`�'•-'A�a•'�.�,2 tr�i` E/i-; ;4. l n ��.z` ,dj! �_i✓;•T - �y :4 `� ./i�` �l_ 9.•r�r ,1y4 ��.�,,,_ C' j ffy Ile mil_ \�\. i s'' >';] '/ �� :�� / •f�^ l�•. � .��y.r''s�.._,�".. �x � 4 •__{ �`. i \ �-i s:j 'el C> -r"' '_ / ��G. /77711 r \ �. y ..1I to A. y `!• u .L Yrf� j'e\ yY yr O ~ 1 k - r _''� r�A,f�.��L�YFC.FF� L,•! � x= ��{ Z x v. W. OKI' 'T- — ,e� xGIN:OF fiOCHE57EqOLMSTED COUNTYc. mZo ZOZONE X 5w23 d (nunt�� �oniE x � � � ca � �, rrfr, _� . f 1 �r tTr:ri.ad �`reas r(,1hZ[i :. � j'f .•�!.�� i.�' I .ZONE -L ,� x l" � �' � �' t I�EYl7 ZONE Y1 / q I' i s X y - IfL-o F44 CtE .. ,A 2— ZONEj/ 1 a 1 I ZONE'AE ..r•r '.. g �: ` if , r N / E :rf i � � �, .�J�-r�r .+�''F'' f .f•`.t „ /^�. 'P.'7/ G� F'�.. 400 ■ �- ■o°D■o I �^' J it *t E'G15TINt� r ' i PLO A`+•., ZONE X �', F r y ,`� r L TVLCJ�S:JD4 +'Q. K f}t ;' EI-lSTtt36l �W C�tE o■r.:�■o..�o. `- z ..� "` .-.:,,� r ��^'-� ''�•Q&V1SEA ��Fl-ODD FRIt3CtE.: � ZONE,yL � `•.�ti t � � FWDVY1tN ,': ,. ,, � ' Via. � � - L W SDo Y2 E kA �r•'Jt F" '`i �, -_ '- .J. .uc ZONE X ' ZEVISev FIRM �'�. Us t�3 r _ F t i rep r i' l r .r7"7'YY j j �EOF MINNfs iZ Minnesota Department of Natural Resources C 6En 66 S N t n F (J S13Nk 4 ilXI Lalliv is Roxf I` t� 3�• ~� r : l� �' �( — r�cfN4ruPP`a�y DNR Waters,500 LafayettelRoadl,Sjj?,.aull..j�IIt1 551554032 t '_4 Telephone:(651)296-4800 Fax (651)296 0445 �2 4 �oNE Aay I 2 ! 1 .�`J . r. 0 r. November 25, 2002 Michael Depue,Program Manager,Region 5 FEMA Map Coordination Contractor II' 1 PBS&J (.tt OE Roche, 12101 Indian Creek Court Y t Beltsville:MD 20705 275246 I /� rFoNE M RE: LOMR REQUEST 03-05-0204R City of Rochester 1=t DGp ZONE x 4tt ) '` 2G + ' Olmsted County,Minnesota �ut2lvt CkEerF ,�;�� �A Dear Mr.Depue: oNc < i' 1 * The Department of Natural Resources(DNR)is in receipt of a submittal for approval of the floodway selection for the South Fork of Willow Creek submitted by Art Kalmes of the Polaris Group.The floodway analysis is included in the hydraulic analysis for the above referenced LOMR request. The floodway selection meets the state's floodplain criteria. . e n x h• 'FLDoD Sincerely, x �Ay i Il ��i/ y�L{ Og aZghii S um,P.E. Supervisor,Floodplain Management Program FwoO f Rlnlrir�i !f �, s r r > aC c: Art Kahnes,Polaris Group Jaspreet Randhawa,PBS&J �'r r nioce r Philip Wheeler,Planning Department,Olmsted County �, � ff a ti � j .• ZONE x =: ^t Bob Bezek Area Hydrologist X { ZONE X s ^ - - loxnnvr r � , U ZONE X JAN 3 0 M ROChESiER O'tdSTED A PLANNING 0EPARTt1ENT ' 1088 � � $onrficastDrauck _ of Kilo o Crec1 DNR Information:651-296-6157 1-888-646-6367 TTY:651-296-5484 1-8006929 ' ZONE ZONE X. ,• An Equal Opportunity Employer yy X - Who Values Diversity r Primed on Recycled Paper Cornaining ■I Minimum of i0.Post-Consumer waste QF WNk,�o ' Minnesota Department of Natural Resources m r W P O L A R I S * C R O U P � SINI Lal;,ynt;Ktcnl . 8200 HUMBOLDT AVENUE SOUTH SUITE 302 BLOOMINGTON.MN 55431 952.881.0878 FAX:952.881.0023 DNR Waters,500 LafaydtidR6Mi,-FA--PniHIM-55155-4032 Telephone:1651)296-4800 -17ax:{651)196-0445= November 7, 2002 October 10,2002 Federal Emergency Management Agency bfitigation Directorate Michael Depue,Program Manager,Rcgiarrf.• Hazard Identification and Risk Assessment Division FEMA Map Coordination Contractor 500 C Street,SW PBS.'j- Washington,DC 20472 .. _. .12101.1naian Creek Court B:ltsyille,MD 20705 RE: Conditional Letter of Map Revision(CLONIR) R_: p U.S.highway 63 Reconstruction LOMR REQUEST 03=OJ-o204&City of Rochester Willow Creek and South Fork of Willow Creek Olmsted Count MN Olmsted County,-Mirmcaota- y, Dear Mr.DcPue: Dear Sir or Madam: The Department of Natural Resources(DNR)is in receipt of a submittal for approva.144 hydrelagic Enclosed are two completed application forms and supplemental data for a Conditional Letter of analysis for South Fftof Willow-Creek submitted byArt-Kaknctattle-PolaiiLCmup_Thc.hydrologic Map Revision(CLOMR)for the proposed reconstruction of U.S.Highway 63 near 40'"Street in analysis is part orthe above referenced LOMR request. Olmsted County, This CLOMR proposes modifications to the floodway and regulatory floodplain \' to accommodate:the proposed reconstruction of three crossings over Willow Creek,floodplain The Polaris Group has made modifications to their analysis to addiess concerns raiseddming the review - grading along Willow Creek,construction of a crossing over the South Fork of Willow Creek,and by the Minnesota Interagency Hydrologic Review Committee..The DNR accepts the hydrologic analysis channelization of the South Fork of Willow Creek. Additional floodplaidmodifications were made as modified. Hesse direct any requests for the supporting document a&n2o Art Ki fmcs of the Polaris to update and correct the Willow Creek floodway and floodplain upstream of 48"Street. Group or Suzanne Iiwani of the DNR: The location of the project is shown in Figure 1. The proposed project will involve reconstruction of approximately two miles of U.S.Highway 63,construction of an interchange at 40"Street and Sincerely,._._ 48"Street,and reconstruction of 40"Street South,48"Street South,and St.Brjdget Road S.E. (CSAH 20). Figure 2 shows the project components. The project will affect the floodplain of Willow Creek as follows:l ` Ogbazghi Sium,P.E. The construction of Woodlake Drive SE will modify the extent of the floodplain. v pervioor,Fivv dplain__i _-1:g .�'n_tTM6_M • The U.S.Highway 63 bridge will be reconstructed and bridges will be constructed for the c: Asprect Ra Polaris PBS&IGroup- adjacent Commercial Drive SW and Woodlake Drive SE. These US 63 northbound and Philip Raadhawa,ninKD - soutbbound bridges will replace the existing box culverts.The nearby Commercial Drive SW Philip Wheeler,Ptanrting Departrrtcrii,OhmtedEotmty and Woodlake Drive SE.bridges will have the same cross-section as the new U.S.Highway 63 Bob Bezek;Area Hydrologist bridges. The proposed 40"Street bridge will have a nominal width of 120 feet and will be similar in cross-section to the Commercial Drive SW,U.S.Highway 63,and Woodlake Drive bridges D;:R Information:651•?Yb-ti137 I•9E8=646•6167 T7Y oft=246 Sid+ --t-lw0 b57.3929 except this bridge will have a single pier. The current 40'"Street bridge is approximately 40 feet long. The current bridge only passes approximately 20 percent of the peak 100-year A.Eq..l Oppm..Ity Emplayat pM1p4..R•Rdb,•a•,Corn-4 - discharge;the remainder overflows 4(Y"Street east of the bridge. vauCarl4rm.,wuq • A flood protection dike will be constructed upstream of the 40"Street bridge. This dike will protect ramp C and the land behind the dike. A pond and gravity storm sewer provide drainage on the back side of the dike. U.S.Highway.63 Reconstruction-CLOAIR U.S.Highway 63 Reconstruction•CL06IR Page 2 Page 3 October 10,2000 October 10,2000 The proposed floodway and floodplain modifications are shown the maps included with Form 5. The Willow Creek floodplain between 40'h Street and U.S.Highway 63 will be modified due to These maps were based on the proposed conditions IIEC-RAS model and recent topographic maps the construction of Commercial Drive SW and the berm on the north side of the creek. The developed by Mn/DOT and the City of Rochester. berm on the north side of the"creek will not be certified as a dike because it is not feasible to provide interior drainage for this area. Future structures at this location will be elevated above the Base Flood Elevations(BFEs) If you have any questions give me a call at(952)881-0878 or e-mail me at akalmesrpolariseroup com The proposed 48"Street crossing of Willow Creek is four 10 ft x 8 ft concrete box culverts with a nominal length of 138 feet. The existing Willow Creek crossing is three 10 ft x 8 ft box Sincerely, culverts. The construction will include adding length to the existing culverts and adding an additional culvert. The additional box culvert is needed to maintain flood stage as a result of ((( the roadwaybein g g raised. Art Kalmes The project will affect the floodplain of the South Fork of Willow Creek as follows: C: Bob Bezek,MnDNR Rochester • 40"Street will be extended approximately 1,300 feet east of U.S.Highway 63 and into the Suzanne Jiwani,MnDNR.St.Paul floodway of the South Fork. A field road is currently located at the proposed 40'Street Scott Samuelson,Yaggy-Colby Associates extension. The 40'h Street crossing of the South Fork will be twin 8 ft x 4 ft concrete box Richard Freeze,City of Rochester culverts with a nominal length of 350 feet. Kay Bieniek,Olmsted County Jai Kalsy,Mn/DOT • The area upstream of the 40"Street box culverts will become a City of Rochester regional ; stormwater pond.This pond reduces the peak discharge through the culverts. The proposed relocation of St.Bridget Road(CSAH 20)will divide the east and west branches of the South Fork. The main branch will cross 40 Street in the twin box culverts(described above). The east branch crossing will be constructed during the future extension of 40""Street east of St.Bridget Road. This modification will shift the junction of the two branches from the upstream side of 40"Street to the downstream side of 40"Street. • The South Fork channel will be reconstructed between approximately 800•feet and 1,600 feet upstream of 40"Street. The new channel is basically the east road ditch of Ramp F. • The current St Bridget Road crossing of the South Fork will be removed. The road will be temrinated east of the South Fork with a cul de sac. The floodplain modifications include a footbridge that was recently constructed approximately 1,200 feet upstream of 48"Street. The recent modifications to the County Road 147(1 Ph Avenue SW)were also included. Modeling errors upstream of 48'h Street were corrected. These modifications were included as requested by Bob Bezek,Minnesota DNR Area Hydrologist. Hydraulic modeling of the project was performed using HEC-RAS. The HEC-RAS model for Willow Creek and the South Fork of Willow Creek was developed from the most recent HEC-2 model for this reach. Modifications were made to the model to reduce instability due to long distances between cross-sections and steep sections,correct overflow areas,and revise conveyance areas. The models are described further in Form 4. * P O L. A R I S * C . R O U P / 8200 HUMBOLDT AVENUE SOUTH . SUITE 302 BLOOMINGTON,MN 55431 952.881.0878 FAX:952.881.0023 NOTICE OF INTENT TO CHANGE BASE FLOOD ELEVATIONS AND FLOODWAY October I0,2002 LOCATIONS PUBLISHED IN THE FLOOD INSURANCE STUDY(FIS)AND SHOWN ON THE FLOOD INSURANCE RATE MAP(FIRM)FOR WILLOW CREEK AND THE SOUTH Ms.Suzanne 7iwani FORK OF WILLOW CREEK IN THE VICINITY OF US,HIGHWAY.63,40r"STREET SW Minnesota Department of Natural Resources AND 481"Department of Waters STREET SW,CITY OF ROCHESTER,OLMSTED COUNTY,MINNESOTA. 500 Lafayette Road WHEREAS,it is a requirement St.Paul,MN 55155-4032 q rement of 44 CFR,Section 65,that public notice is provided of potential changes to the FIS and FIRM before the changes may be adopted by the Federal Emergency RE:Conditional Letter of hlap Revision(CLOMR) Management Agency(FEMA);and U.S.Highway 63 Reconstruction Willow Creek and South Fork of Willow Creek WHEREAS,information submitted to FEMA indicates that Base Flood Elevations(100-year) Olmsted County,MN will change from those published in the FIS Olmsted County,Minnesota and Incorporated Areas, Dear Suzanne: February 4,1998. In addition,the designated floodway of Willow Creek and the designated floodway of the South Fork of Willow Creek published on the FIRM Olmsted County, Minnesota and Incorporated Areas,April 17,1995,Panels 303 and 304;will be modified in the Enclosed is a copy of the Conditional Letter of Map Revision(CLOMR)application to the Federal Emergency banagement Agency(FEbIA)for the proposed reconstruction of U.S.Highway 63 near 40" vicinity of US Highway 63 and 4lY"Street SW. The proposed changes in the Base Flood Elevations and the floodway location are due to the effects of the proposed construction of four Street in Olmsted County. This CLOMR proposes modifications to the floodway and regulatory floodplain to accommodate:the proposed reconstruction of three crossings over Willow Creek, 120 foot long bridges on Willow Creek at Woodland Avenue,north bound and south bound lanes floodplain grading along Willow Creek,construction of a crossing over the South Fork of Willow.Creek, of U.S.63,and Commercial Drive;proposed construction of a 120 foot bridge on Willow Creek and channelization of the South Pork of Willow Creek. Additional floodplain modifications were made at 40 Street SW;proposed levee construction;proposed channelization;proposed construction at the request of Bob Bezek,DNR Area Hydrologist,to update and correct the Willow Creek floodway 1. of twin 8 foot by 4 foot box culverts on the South Fork of Willow Creek at 40'"Street SW;and and floodplain upstream of 48'"Street. proposed construction of four runs of 10 foot by 8 foot box culverts on Willow Creek at 48" Street SW. Additionally,changes in the Base Flood Elevations are proposed to reflect the The CLOMR application indicates the proposed floodway and floodplain modifications and provides the current twin 12 foot by 8 foot culverts on Willow Creek at County Road 147 and the 68 foot long technical information to support them. These modifications are further described in the cover letter footbridge located approximately 450 feet downstream of Count Road attached to the CLOMR application. The map provided with the cover letter shows the project y 147; components. NOTICE IS HEREBY GIVEN that properties located in the SE 1/4 Section 21;NW 1/4 NW 1/4 The CLOMR application proposes modifying the floodway. As a result,the State mlrst approve the Section 25,Section 26, NE U4 Section 27,SE 1/4 Section 27,NE I/4 Section ,NW I/4 revised floodway before FEW will issue the CLOMR. Please review this CLOMRapplication and Section 35 of Rochester Township(TI06N,R14W)may be affected by the proposed changes. provide written approval. If you have any questions related to the information contained in this CLOMR please contact me(952.881.0619)or Tom Johnson(952.881.6853). General questions related to the Interested persons my contact Jai Kalsy,MnDOT Project Manager at(507)529-6321 or may proposed project can be directed to Jai Kalsy,MnDOT project manager,at(507)529-6321. review the application for the Conditional Map Revision at the MnDOT District 6 office at 2900 SRerely, 48'"Street NW,Rochester,MN 55901 by appointment before November 15,2002 Art Kalmes,P.E. C: Bob Bezek,MnDNR Form 3,Attachment I Certification of No Impacts to Insurable Structure Reason for New Hydrologic Analysis A comparison of the modeled Base Flood Elevations(BFEs)for existing and proposed A precipitation/runoff model was developed for the South Fork of Willow Creek. No conditions indicates that the proposed project will result in an increase in the BFE at the hydrologic model of the South Fork is known to exist. The FIS indicates that the South following locations: Fork of Willow Creek discharge rates were determined using "drainage area-discharge relationships." Willow Creek The hydrology was revised for four reasons: • Between 0 and 50 feet upstream of the proposed Commercial Drive SW bridge at Willow Creek 1.Errors in FIS hydrology. The South Fork of Willow Creek drains approximately 640 • Between approximately 500 feet and 1400 feet upstream of the proposed 40`h Street bridge at acres to Willow Creek. The main branch of the South Fork of Willow Creek drains a Willow Creek watershed area of 456 acres. The east run of the South Fork of Willow Creek drains 186 • Between 0 and 50 feet downstream of the proposed 48"street culverts at Willow Creek acres. The branches join just south (upstream side)of the field road which will become part of the 40th Street extension. The FIS hydraulic model does not accurately model the South Fork of Willow Creek flow conditions,since it includes the discharge from the east run of the South Fork in the • Between 0 and approximately 800 feet upstream of proposed 40"Street culverts main branch of the South Fork of Willow Creek. A truck stop is presently located southeast of the present U.S.63/40th Street intersection ?.The proposed construction of St.Bridget's Road will further separate the South (between the South Fork of Willow Creek and U.S.63). This property will be purchased and the Fork of Willow Creek from the east run'ofthe South Fork of Willow Creek. The truck stop will be demolished to allow construction of the interchange and Ramp F. two branches will join north(downstream)of 40'"Street. The South Fork of Willow Creek and the east run of the South Fork will be conveyed under 40'"Street in separate A comparison of modeling of the Base Flood Elevations for existing and proposed conditions ( culverts. Each culvert needs to be designed using the correct discharge. indicates that the BFEs will increase between 0 and 1,800 feet upstream of the existing County Road 147 crossing at Willow Creek as a result of corrected modeling of this reach. The increase 3.The 132-acre watershed area west of IIighway 63 will he drain into a pond and in the flood elevations at this location is not the result of the proposed project. through a culvert into the main branch of the South Fork of Willow Creek. 4.Construction of a regional storm water pond south of 40'"Street. A diskette with the hydrologic model input files,the hydrologic model output and backup t data,and a further detailed explanation of the hydrology is attached to this form.. I have reviewed the locations where BFE increases will occur as a result of this projects and certify, based on a review of development plans,survey results,and field inspection,that there are no insured structure in these areas that will be impacted. Signature: Printed Name:_bA tj I EL _T eNttFpmT— Reg No._-fit{SS Date: /o p a •