Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
20080421 - VI-18
VI - 18 Memo To: Mayor Hicks and City Council From: John Hinzman, Planning Director Date: April 21, 2008 Subject: Authorize Public Notice and Distribution -Environmental Assessment Worksheet (EAW) 2008-09 -Hubs Landing REQUEST The City Council is asked to authorize submittal of public notice and distribution of Environmental Assessment Worksheet #2008-09 for Hubs Landing. Hub's proposes to expand its marina from 50 to 80 slips and to dredge and fill a portion of the riverbank along the southeast corner of the property. Upon approval, the notice would be published in the Minnesota Environmental Quality Board's EQB monitor and sent to affected agencies for review and comment. NEXT STEPS Publication of the EAW is the initial step in considering the expansion request. Additional steps include: • Responding to EAW comments from the public and interested parties. • Making a declaration of environmental impact and findings of fact. • Considering special use permit application for the expansion ATTACHMENTS • Environmental Assessment Worksheet Environmental Assessment Worksheet Hub's Landing and Marina established in 1948 Establishing a proper permit base line, Shoreline Restoration, Transient Dockage, Marina Expansion. March 2008 Prepared by: Hub's Landine and Marina PO Box 21. Hastings. MN 55033 651-7~~-640 ~~~~~-~~ .hubs) anding.com ENVIRONMENTAL ASSESSMENT WORKSHEET Environmental Assessment Worksheet provides information about a pr•ojecl that may have the potential for• significant environmental effects. The EAW is prepared by the Responsible Governmental Unit or its agents to determine whether an Envir•onnzental Impact Statement should be prepared. The project proposer must supply any reasonably accessible data for• -but should not complete -the final worksheet. If a complete anslver• does not fit in the space allotted, attach additional sheets as necessary. The complete gzrestion as well as the answer must be included if the EAW is prepared electronically. Note to reviewers: Comments must be submitted to the RGU during the 30-day comment period following notice of the EAW in the EQB Monitor. Comments should address the accuracy and completeness of information, potential impacts that warrant further im~estigation and the need for an EIS. I. Project title Hub's Landing and Marina Expansion Proposer Hub's Landing and 1.larina Contact person iViart: and Monica Fraser Title Owners Address PO I3ox 21 City, state. ZIP Hastings, 1'1\ 55©33 Phone 651-755-6542 Fax 65I-767-7278 E-mail monicafnhubslandinL.com mark.frazernus.lawson.com RGU City of Hastings Contact person John Ilinzman & Kari Barker Title Planning Director Address 101 4th St. East City. state. ZIP Hastings,'~'1\ SSt133 Phone 651-4811-2334 Fax 651-437-7082 E-mail JHinzman~ci.hastin~s.mn.us kbarker,~ci.hastinas.mn.us Reason for EAW preparation check one) E1S scoping Mandatory EA Citizen petition RGU discretion Proposer Volunteered EOB rule category subpart number and subpart name. 4~t 10.430Q subpart ZS -Construction or Expansion of a marina or harbor that results in a 20, 000 or more square foot total or a 20.000 or more sgzrar-e foot increase in swface area used temporarily or permanently for docks. docking, or manezn~ering of hater craft. A marina is an inland or offshore area for the concentrated mooring of five or more 1a-atercraft boat storage, fueling, launching, repair, sanitary pumpozrt, or• restaurant service. 5. Project /ocation County Washington City/To~~~nship Hastings Properri identificaiion'yunzberlGEOCODEt 07 026 20 4 QO()l SW '/4 SE '/4 Section 07 To~~mship 026 Range 20 Attach each of the following to the EAW: • Area nzap showing the general location of the project: (See Figure 1) • Site plan sholving all significant project and natural features. (See Figzu•el -7) 6. Description a. Provide a project summary of SO words or less to be published in the EQB Monitor. Response; This is a stepped approach for three major projects over the few years. Step I. is more a cleanup of past permits for the DNR. A permit has already been issued from the Army Corp of Engineers for this phase. but awaits an amended permit from the DNR. This step consists of existing Pump out Dock. Safety/Information Center, and 7 slips. Step II. would increase the number of slips from 50 to 80. These new slips would only increase the marina's total footprint by l 1,700 sq feet. Step III; would prepare our southern portion of our property for the Boating Infrastructure Grant (SIG) to allow for transient moorings in the Hastings area. There are approximately 700 feet of shoreline lined ~~-ith old concrete and some of it is eroding. This phase would restore the banks with Rip Rap and native vegetation. (Appendix F) b. Give a complete description of the proposed project and related new construction. Attach arlrlitiona/sheets as necessary. Emphasize construction, operation methods and features that will cause physical manipulation of the environment or will produce wastes. Include modifrcations to ~risting equipment or industrial processes and significant demolition, removal or remode/ing of existing structures. Indicate tl:e timing and duration of construction activities. Response; (See Appendix A) c. Explain the project purpose; if tl:e project will be carried out by a governmental unit, explain the need for the project and identify its beneficiaries. d. Are future stages of this development including development on any outlots planned or likel~~ to happen? X No Response; There are no future stages. relationship to present project. timeline and plans for environmental review. e. Is this project n subsequent stage of nn earlier project? X Yes /f yes, briefly describe the past development, timeline and any past environmental re>>iei~~. Response; Step 1 was completed in 2004 Permits have already been received from the Army Corp of Engineers. 7. Project magnitude dnta Total project acreage 1.5 acres Response; Figure 3 shoves the project site .Number of residential units.' zzrzaltached N/A attached N/A rnaximum units per building N/A Conznzercial, industrial or institutional building area (gross floor space): N/A total square feet Indicate areas of specific uses (in square feet): N/A Other commercial (specify) Transient dock per detail. Recreational boating docks per detail. Shoreline restoration per detail. Pump out dock per detail. Safety Center per detail. 8. Permits and approvals required. List all knotivn local, state and federal permits, approvals and financial assistance for the project. Include modifrcations of arty existing permits, governmental review of plans and all direct and indirect forms of public financial assistance including bond guarantees, Tax Increment Financing and infrastructure. Unit of government Tyne of application Status Army Corp of Engineers 33 CFR Granted waiting on DNR permit 33 CFR Application for Phase 2 to be applied for 33 CFR Ap lication for Phase 3 to be a lied for Minnesota DNR Protected waters Application for Phase 1 on hold pending EAW Protected waters A lication for Phase 2 to be a lied for Protected waters A lication for Phase 3 to be applied for Citv of Hastings Conditional Use Permit To be ap lied for 9. Land use. Response: Proposed area for the transient dock was part of the land and after the bridge construction in the late 40's and early 50's the property has been slowly eroding away till it is what you see today. This area is currently filled with dead trees that have floated down during high water and has lodged into. Our goal is to clear this area and dredge the existing land to a depth of 6 feet and then to provide transient slips for boats greater the 26 feet. This project is compatible with its surroundings. 10. Cover types. Estimate the acreage of the site with each of the following cover types before and after development: Response; This project will involve construction of floatable docks on navigable water. No impervious area will be added. 11. Fish, wildlife and ecologically sensitive resources Are any state-listed (endangered, threatened or special concern) species, rare plant communities or other sensitive ecological resources such as native prairie habitat, colonial water bird nesting colonies or• regionally rare plant communities on or near the site? X No Response; Provided in Appendix C is a portion of the Nation Parks Service Final report Mussel survey of the Mississippi National River and Recreational Area Corridor. 2000-01. This survey shows that there is a point of interest upstream from Hub's Landing and Marina_ 1 Z. Physical impacts on water resources. Will the project involve the plrysicnl or hydro/ogre rrlterrrtion - rlrerlging, frlling, stream diversion, outfall structure, diking, and impoundment - of any surfitce waters such as a lake, pond, wetland, stream or drtrinage ditch? X Yes Appendix E is a memo and location pertaining to the HEC 2 study provided by USG engineering. 13. Water use. Gfill the project ir7rolve installaliora a• abandonment of any hater wells, connection to or changes in any public water supply or appropriation of any ground or surface water (including dewatering)? X No 14- Water-related land use management district Does any part of the project im~o/ve a shoreland =oning district, a delineated 100-year flood plain, or a state or federally designated wild or scenic river land rrse district? X Yes If yes. ident~ the district and discuss project compatibility lvith district land use restrictions. Response: The Hastings 2030 Comprehensive Plan designates this area as Ploodway and this area lies within a delineated 100-year flood plain. Marinas are allowed by Special Use Permit. The addition of 30 slips would require an amended Special Use Permit to be approved by the City of 1-lastings. 15. Water surface use. Wil! the project change the number or type of watercraft on any water body? X No If yes, indicate the current and projected watercraft usage and discuss any potential overcrowding or conflicts with other uses. Response: The reason ~vhy 1 answer this question with a No is that with the increase of new slips we also limit the number of boats that are stored there (store and launch) as well the number of boats that use our launch. 16. Erosion and sedimentation. Give the acreage to be graded or excavated and the cubic yards of soil to be moved: Response: Erosion and sedimentation. Give the acreage to be graded or excavated and the cubic yards of soil to be moved: acres ;cubic yards .Describe any steep slopes or highly erodible soils and identify them on the site map. Describe any erosion and sedimentation control measures to be used during and after project construction. An important part of this project is to protect and re-establish eroded shoreline (see Figure 7 and attached pictures). Erosion of the shoreline will be prevented by riprapping exposed areas. Figure 6 shows a fill area to re-establish eroded shoreline. The fill for this area will be obtained by dredging the adjacent sedimentation area in the river (see Figure 6). A silt curtain wi]} surround the dredging area to prevent the migration of sediments during the dredging process. l 7. Water quality: surface water runoff Respouse: Not applicable other then there are no controls currently. Within the shoreline restoration design a buffer zone will be created following the DNR's best practices guideline. (Appendix F) a. Compare the quantity and quality of site runoff before and after the project. Describe permanent controls to manage or treat runoff. Describe any storm water pollution prevention plans. Response: Not applicable other then there are no controls currently. Although within the shoreline restoration design a buffer zone will be created following the DNR`s best practices guideline. b. Ident~ routes and receiving water bodies for runoff from the site; include major downstream water bodies as well as the immediate receiving waters. Estimate impact runoff on the quality of receiving waters. 18. Water quality: wastewaters Response: N/A 19. Geologic haznrds and soil conditions; Response: N/A 20. Solid wastes, hazardous wastes, stornge tnnks. X Yes Response: Yes. the pump out facility has a solid waste tank is emptied v`~hen needed. This tank is stored on a trailer along with the pump so that in flooding situations it can be removed from the property. 21. Traffic. Parking spaces added 0 Existing spaces (f project im~olves expansion) N/A Estimated total average daily traff c generated 13.5 vehicles per day Estimated rrraximum peak hour d•affrc generated (f known) and time of occurrence.. 5 vehicles per hour Provide an estimate of the impact on lraffrc congestion on affected roads and describe any n affrc improvements necessary. /f the project is within the Twin Cities men•opolitan area, discuss its impact on the regional transportation system. Response: There is virtually no impact on traffic. Because we are taking in less dry storage and launch business the increase in traffic will decrease. The majority of boaters that lease their slips tend to spend less time coming and going then dry storage and launch boaters. They usually come in on Friday and leave Sunday night. This in contrast to our Dry Storage and Launch business that usually come and go each day. 22. Vehicle-related air emissions. Estimate the effect of the project's traff c generation on air• quality, including carbon monoxide levels. Discuss the effect of traffic inzpr•ovenzents or other mitigation measures on air quality impacts. Note.• If the project involves S00 or more parking spaces, consult EAW Guidelines about whether a detailed air• quality analysis is needed. Response: N/A 23. Stationary source air emissions. Describe the type, sources, quantities and compositions of any emissions fi•onz stationary sources of air emissions such as boilers, exhaust stacks or fugitive dust sources. Inc/ude any ha=ardous air• pollutants (consult EAW Guidelines for• a listing) and any greenhouse gases (such as carbon dioxide, methane, nitrous oxide) and o=one-depleting chemicals (chloro fluor•ocarbo»s, hydrojlzrorocar•bons, perfluorocarbons or sulfur hexafluoride). Also describe any proposed pollution prevention techniques and proposed air pollution control devices. Describe the impacts on air• quality. Response: N/A 24. Odors, noise and dust. Will the project generate odors, noise or dust during construction or during operation? X Yes Response: The project would produce the noise element from back hoe machinery to dredge. This would be accomplished during the work week; Monday through Friday, from 7:30 AM to 5:00 PM. We fully plan to do this in accordance to the City of Hastings City Code Chapter 95-Noise Regulations. 25. Nearby resources. Rre arty of the following resources on or in proximity to the site? • Archaeological. historical or architectural resources? X No • Prime or unique farmlands or land i+~ithin an agricultural preserne? X No • Designated parks, recreation areas or trails? X No • Scenic view-s and vistas? X No • Olher unique resources? X No Response; Minnesota Natural Heritage Information System Data Request is provided in Appendix B 26. Visual impacts. i~'iIl the project create adverse visual impacts during conslr•uction or operation? Such as glare from intense lights, lights visible in lvilderness areas arzd large visible plumes from cooling towers or exhaust stacks? X No 27. Compatibility wit/r plans and land use regulations. Is the project subject to an adopted local comprehensive plan, land use plan or• regulation, or other applicable land use, hater. or resource management plan of a local, regional, state or federal agency? X Yes . Response; The Hastings 2030 Comprehensive Plan designates this area as Floodway. Marinas are allowed by Special Use Permit. Thus, the addition of 20 slips would require an amended Special Use Permit to be approved by the City of Hastings. 28. Impact on infrastructure and public services. Wi11 nee+~ or expanded utilities, roads, other infrastructure or public se~~>ices be required to ser~~e the project? X No 29. Cumulative impacts. Minnesota Rule part 4410.1700, subpart 7, item B requires that the RGU consider the "cumulative potential effects of related or anticipated future projects" when determining the need for an environmental impact statement. Ident~ any past, present or reasonably for°eseeable future projects that may interact with the project described in this EAW in such a way as to cause cumulative impacts. Describe the nature of the cumulative impacts and summarise any other available information relevant to determining whether there is potential• for signifrcant environmental effects due to cumulative impacts (or discuss each cumulative impact under appropriate item(s) elsewhere on this form). Response; On October I5, 2007, the City of Hastings approved a fourteen slip marina at2 Spiral Vier Drive, ]ocated north of II UBS landing. The cumulative impact from this marina is more boat traffic on the rater. 30. Other potential environmental impacts. If the project may cause any adverse environmental impacts not addressed by items 1 to 28, ident~ and discuss them here, along with any proposed mitigation. 3l . Summary of issues. Do not complete this section if the EAW is being done for• EIS scoping; instead, address r•elerant issues in the draft Scoping Decision document, which must accompany the EAW. List any impacts and issues identified above that may require further investigation before the project is begun. Discuss any alternatives or mitigative measures shat have been or may be considered for• these impacts and issues, including those that have been or may be ordered as permit conditions. RGU CERTIFICATION. The Environmental Quality Board will only accept SIGNED Environmental Assessment Worksheets for public notice in the EQB Monitor. I hereby certify that: • The information contained in this document is accurate and complete to the best of my knowledge. • The E.9 W describes the complete project; there are no other projects, stages or components other than those described in this document, lvhich are related to the project as connected actions or phased actions, as defined at Minnesota Rules, parts 4410.0200, subparts 96 and 60, respectively. • Copies of this EAYI•' are being sent to the entire EQB distribution list. Signature Title Date Environmental Assessment Worksheet was prepared by the staff of the Environmental Quality Board at the Administration Deparnnent. For additional information, x~orksheets a• for EA W' Guidelines, contact: Environmental Quality Board, 658 Cedar St., St. Paul, 1~IN 55155, 651-296-8253, or http:,hT-w+v. egb.state.mn. us Appendix A EA W Detailed Description: This is a phased approach for three major projects over the next 5 years. Step I addresses the DNR's request to include three previous permit requests within this EAW. A permit has been issued from the Army Corp of Engineers for a pump out station, aSafety/Information center, and seven additional slips, but these improvements await amended permits from the DNR. (Figure 2) In 2005, we received a Clean Vessel Act grant from the DNR that helped pay for a pump out station. This dock, which lies on the south/downstream end, is 54 feet by 8 feet, and meets ASA guidelines. It includes aself--serve pump system with which boaters remove septic waste from their vessels. This service provides an important resource for boaters so that such waste is not flushed into the river. The waste is held in a tank and is periodically emptied by a sanitation service. Hub's receives no economic benefit from having this pump out station because we are not serviced with city sewer or water. We are required to pay a septic service to pump the tank. In 2004, we installed Safety/Information Center that sits on a barge. This barge is moored adjacent to an outer dock and is wrapped by docks so it can be accessed via the river. The dimensions of the building are 16 feet by 30 feet with a screened in meeting room on one end. (16' x 10') Within this safety center are the marina's spill control system, as well as various FREE books and pamphlets provided by the Coast Guard, DNR, US Fish and Wildlife, Army Corp of Engineers, and the city of Hastings. We stock a first aid station and monitor channel 16. The center also houses a small ship store and refreshment area for boaters. It is visited by boaters while they wait for Lock and Dam #2 to turn over, and thus provides a safe place to moor while boats and barges are in the area. Additionally, because the marina exists within a floodway, we are unable to erect a structure that would serve as a clubhouse for our patrons. The center serves as a meeting place and social center for customers, and a place to find marina personnel when customers need a service or an answer to questions. In 2004, we reconfigured docks, within our original permitted footprint, to allow for 7 new slips. These slips lie in the northern/upstream portion of the marina. The DNR requested that this reconfiguration be included in the EAW. The slips exist within the original permitted foot print and do not increase our overall square footage. It is a request to increase the permit for slips from 43 to 50. Step II would increase the number of slips from 50 to 80. This increase would only increase our total footprint by 11,720 square feet. We typically have 70 to 80 names on a waiting list for slips. These additional slips would provide a service for the boating community. (Figure 3) Step III prepares the southern portion of Hub's property for the Boating Infrastructure Grant (BIG). This grant exists to provide transient dockage for boats that are 26 feet or greater. Dedicated transient dockage would promote Hastings as a destination and provide economic benefit to Hastings' downtown businesses. Hastings' new public dock will. provide easy access to downtown for boats that stay in the area. In addition, we currently provide shuttle services to town for those who moor at Hub's and do not want to walk across the highway bridge. SmartRide is another resource for boaters who want to spend time in Hastings. (Figure 6-~~ photos) We would need to remove part of our property to create a safe harbor and install dockage. The southern portion of Hub's property was previously at a higher elevation. The elevation was reduced when the Highway 61 bridge was constructed back in the late 1940's. We plan to dig out a portion of this area that was land and to create the harbor and use this land to fill along the south shoreline. There are also }arge piles of dead trees and driftwood that have become lodged in this area. Most of this dead wood would be removed, but some would remain for "fish finger" habitat. Shoreline restoration and revitalization are also included as part of this plan. There are approximately 700 feet of shoreline lined with dumped concrete pieces and some of it is eroding. Initial work in Phase III would restore the banks with limestone Rip Rap and native vegetation. The shoreline on the south end would also be reinforced with Rip Rap and native vegetation. We would follow the Minnesota's Department of Natural Resources Shoreline Alteration "Riprap" guidelines, which use riprap and a vegetation buffer. 41 K m O N 0 z ~ N (q N J d} O d UFU } F ~ Z W ~ ~ iZ W OO Z O U Q1 Q OZ g mWQU lStUWO a ~ ~ ~ vQ~p MWZ~ Y 0 a ~ co ~QQ OZ W - ~ Z ~ ~ ~ ~ o ~ W ~ O ~ p N N ~Y ~. Z m C'.7 ~ ~ ~_..~.......__ ~ _ ~~Z J = 1- N N ~ N ~ ~~~"~1~ Q ~ (~ Q ~ ~ ~ O ... ~ ~ ~ .: ~ 7 ..~~........r „-:. .. O U O V' J O ~l,...-,. ,-- V ~ I _.. - ~~ i '7R ~ ~ ~ O ~ V 1 f i I y O r ~~ ~~~ ~ y. 6Mp~a6!jPPlrou~oy~agnFl~P~oMNBol- sy~ufo~ea»rwaoa m3oM~SldW SLIf1~~A (~'SL) ~3WVM 3lti NS10 ~9Y~6 £OOZ HBO 3~0 31V0lOld 0 ? L.C) _~ r - c~ ~ : ~ Z ~ ~ O ul Q ar p ~'? p~ Q ~~ z F° W ° ~ ~>~Z Z F- O J ~ OZ~O _O ~ OK OO ~ S=ao « " U ~ N~ Z W aQWO ~wc7~ h WZW ~ Z ~o~Q¢ A~~ ~ YQZ ~ ..0-~8 ~ ~ D ~ ~ ~ ~ m ~ C.9 a0 00 ~_~ N N - (n .......r ~ _,.,,,,,,,,,,,..:,, _. ................... ~ Q ~4 ~ . ~ = ~yJ 1-- ~ ~QQ O ' O V t. `3~~. ~ ~ j m m ~ o ~ _ i ~..... ~ p. O V ' ~~ Z O Q Z O -~ N W V J d W ~ _ ~: 3 w O > (n WU Z d' O ~ p ~~ aw p m J~ ~ ~ i N Z ~~ Q Y DU Z ~ O O Z2 ~ V m ~ ~ Q = Z ~ J~ LL ~ i C7 6Mp~s&,~pprouuo~y¢gn{~pwo~yopol- ~oojo~\soo~noeay ~ayo~\SIdW SU(1\~A (90'Sl3 ~3WVN 3lLi NSIO u~~9~~6 fODZ '80 3~0 ~31V0 lOld A O~ LL V <~ 1 O C t 0 a 0 0 m 0 3 N J a a a iD 0 ri 3 J a ui Looking downstream at the area to be dredged/excavated. Looking downstream along the shoreline to be re-established. Minnesota Department of Natural Resources Nattual Heritage and Nongame Research Program, Box 25 500 Lafayette Road St. Paul, Minnesota 55155-40_ Phone: (651) 296-7863 Fax: (6S1) 296-1811 E-mail: sash.hoff'mann@dnr.state.nm.u:; July 6, 2004 Mark & Monica Frazer Hubs Landing and Marina P.O. Box 21 .Hastings, MN 55033 Re: Request for Natural Heritage information for vicinity of proposed Hubs Landing and Marina Expansion.; T2~N R2(?VE~ SertiCrn ?, W~cl_t_i*egf;}n f,'^n^+~s NHNTtP Contact #: ERDB 20040933 Dear Mr. and Mrs: Frazer, The Minnesota Natural Heritage database has been reviewed to determine if any rare plant. oi- animal species or other significant natural features are known to occur within an approximate one-rsiile radius of the area indicated on the map enclosed with your information request. Based on this revie:v, there are 18 known occurrences of rare species or natural communities in the area searched (for details, see enclosed database printout and explanation of selected fields). In addition, several rare mussel. speies axe known to occur in the main stem of the Mississippi River: However, provided the project will. not r~paci the water quality of the lake or river, I do not believe it will affect any known occurrences of`rare featur~:s. I recommend that you also get such a determination from the :I,T. S.. Fish and Wildlife Service by co.+ttac±ing Biologist, Nick Rowse at 612-725-3548 x Z:10. - ~ The Natural Heritag;, database is maintained by the Natural Heritage and Nongame Research Program, a unit within the Division of Ecological Services, Department of Natural Resources. It is continually updated as new information becomes available, and is •the most complete source of data cn Minnesota's rare or otherwise significant species, natural communities, and other natural features. Its purpose is to foster better understanding and protection of these features. Because our information is not based on a comptehensive inventory, there may be rare or otherwise significant natural features in the state that ark not represented in the database_ A county-by- ~_r~~inty cn;1~P~! of r~ra ~;;et2tral f atnrFC is ?+nw t:r:ti~*way ~nl1 Ygac hPP.n rr:,~nnlr!Qd fns~ltl;:cliir?atr~:_n f:'~.t~Tti~~. Our information about natural communities is, (herefore, quite thorough for that county. However, . because survey work for rare plants and animals is less exhaustive, and because there has not been an on- site survey of all areas of the county, ecoJ.agically significant features for which we have no records may exist on the project area. The enclosed results of the database search are provided in two formats: index and full record. To control the release of Iocational information which might result in the damage or destruction of a rare element, both printout formats are copyrighted. ' The index provides rare feature locations only to the nearest section, and may be reprinted, unaltered, in an Environmental Assessment'Worksheet, municipal natural resource plan, or report compiled by your company for the project listed above. It you wish to reproduce the index 'tor any° other purpose, please contact me to request written permission. Copyright notice for the index should include ~'~ t`te following disclaimer: "Copyright (year) State of Minnesota, Department of Natural Resotuces. 'This index '~ DNR Information: 651-296-6157 1-888-646-6367 TTY: 651-296-5484 1-800-657-3929 An Equal Opportunity Employer ~~ Printed on Recycled Paper Containing a Minimwn of 10~/~ Post-Consumer Waste may be reprinted, unaltered, in Enviuronmental Assessment W ~rl~heets, municipal natural resource plans, and internal reports. For any other use, written permission is required." The full-record printout includes more detailed locational information, and is for your Iersonai use only. If you wish to reprint the full-record printouts for any purpose, please contact me to request written permission. Please be aware that review by the Natural Heritage and' Nongame Research Program focuses only on rare natural features. It does not constitute review or approval by the Department of Natural Resources as a whole. If you require further information on the environmental review process for other wildlife- related issues, you may contact your<Regional: Environmental Assessment Ecologist; Wayne Barstad,. at :;(651)772-7940.: An invoice for the work completed will be mailed to you under separate cover within two weeks of the date of this letter. You are being billed for map and database search and staff scientist review. Thank you for consulting us on this matter, and for your interest in preserving Minnesota`s rare natural resources. Sincerely. /~~ Sarah D. Hoffmann Endangered Species Environmental Review Coordinator encl: Database search results Rare Feature Database Print-Outs: An Explanation of Fields . cc: Nick Rowse, USFWS - W ~ W W~ W W W W - [{s~7 a Wa a a ~ r 1 f z z z 2 z z z z z 2 z O~O OO O O O O O O O ,, ~ H H H H H H H H' H H H d ~ FC W W W W W W W ~ W T 7 ; p p~ Wa ~p~ ~ U U~ U U U ~ U U U r - a`~`~a` ' a~aa `~a a a ~ ~a x .a .x ~ .a . w m ~ .x ~ .: a - aaa. a aaa. a a a in O WF ~ W W W N~ H H .H H H;. H ,H H - H. H H ro ~ a a a a a a a a a s a ~ .'. ai m I ~ FFFFFFFF HF F FC~~.G~RC~¢aC a .Sr.C .t z z ~ ' z z ~. , . ~~~~ ~ ~ ~ z ~. , ~, z z . z .. , -~~ ' - ~~ ' ~ .O" roo ' W a' H H H H H H H H H H H aaaaan,.aa V. w. a. a ~ 'O. N i ~N::- a.'.. .'aa.aaaa.aa w...aa a: H H H H H H H H ~ W HH H ~._- .N-t~ S' !] W - Ul [121A-~V] fn UJ q) U]. W -..VI U} U1 .W ~W'W W~N W W W'~~~ ~.a. W ~/! W~ --Y31 .i C7 A. H H H H H H H H H H H N VJ W W W W W' W N y W W ~ H d~' -~ ~ z~j V} W iq' fq !A fD fq V) ' U! U! Cq H H H H H H H H ~ jj H H H .: ' ~ ~ O L ~ ~ £ E E ~ ~ ~ H . .-7: U ~: :. -. ' `, . I E ro l~ ,. bl O vi .Na ~ ~ .u m~-~ z •O"'1a v ~ N xt x O w ' ~ .-. w c s ~S O:N a a W W N W m H ,U ~ ' N E ~ ~ ~ W {F{pq FFFFV] h O Ol ~-1 ~-1 m 0 - m o U' 3 H G H E ~ ' a . 7 ~ m m N k N XF VJ N W 3k N Yk d~ X% N ~ .x~: ro m rn : qt q W ~ [~ ~ h ~t : a~w o~ r.yr~n._ ~ a . a"o ~ ~ C a x H a a~ " .h-~ a a a w -~ ~ a,a .... -. ~- ' ~ ~ ~ z y ~.. r ~ - a] O ' ~ ~ ~ N ~ ~ ~ 6at ~ : ~... ,.. ... .... ' 2 r~ aq . . HWH pqq r ~ aC p P a W W w x 2 W x w P~ U W aW A H 7. ro p O. a U R o W A U W D+ W !] W ~ x W ~ w[7Jaa~'OU F`a W V ~ ,7 q.~ F' b~ ~ ~ W U a , U [7y] W a ~ a W R F ~ vl ~~W22 H ~il a! fA H ~ ~ .. .... - ' . ~-!,'U'. N ~ ~ W m Ul UI FG 4a W 2 Ul - • w w`~xr ~ `~`~:~ f ~ j ~ a ~~ ~ m ~3~ W az z ~ 7~ aFC~ uw Fx3z a o F F ~ ~ x a n + ~LI > v ~ v ~ .., m H~ y O~ F W v H N N: ~ 2 w ((! !~~ !~~ ]C ]C !!! r1 rt -- Q H X W a W W W I a ry w A F a r `' a U t W 2..' k ~ x [ ~ pp y ~ W7 a {L~ x E+ M F+a7 W F U F O F~~ U x rZ v F U x -~~~ ~ rv ~ `JJ F `~ [4 O .'P~ W ~~.....77777 a O 7FPF H cA r.~ O E. O W V O O U aa pp C7 U P ; f+ ro U . W W ~ FC a 'J ~4 A ~4 W WW L7 O FC '4 7. 'J O ~ O ~j 3H v v vV ~ ~' W ~ O '.Ca Haaa ~ ~ - _Q b a x~`iF~ai`aaw~~wFCw`~~w ~ ~z aw~mUaoHwoHa~wao `a`~ow °'° ~aaH wx ~w~~ a~ w z a ° w w a + o n s ~~ a ~ ~ a ~ ~ ~ ~ w w w ~i n n ~ ~O m o o w o x N M t+1 n1 M [+1 N N N ro a u z z V z v u v U n ro H ~w a o o a o a a a s mzz ~ zrn v~~m~n - u ro' n m p p :rn ~ a ~ m. o w vi a a a ;.i .U ~ .~ a~. a x : ~ N z ~ v ~ ., F ' - .~ .N Ha' w ~ h h h m m ,-~ H ,~ .-~ .-i .~ .i H N r~ r~ h -~: z' U a V1 O O O O O O O O O O O N N N N N N N ". U 3 3 3 5 '3 '3 3 3 S S 3 3 3 '3 S 3 S 3 ". N- .O C7 0 0 0 0 0 0 .~ H .~ .-i H h h h h h h h :'. ,L.i N.~ zd N N N N N N N N N N N r-/ H H H .-1 .-i .-1 aaaaaaaaaaaaaaaaaa - ~-:ar w z z z z z z 2 z z z z z z z z z z z - :c.e ~o~w~o~o~c~~~~o~om~,~„~,~,~,~ :-'~~.'W ' ~"- 1 -I a $ N N N N N N N N N N N N H H .-1 r1 N H ' -' .~-W H 0 0 0 0 0 0 0 0 0 0 0 rt N .-1 H H ci H F H F F H H H F H F H F N FrH F F H t yry'; 2 ~. q ro O m ' v a 0 O ~.1 N £ -- w ~i o v ro ~' ~ >, o !U N .N " N' L F bl .~ d -U E . ro u '~ o ., N a U U ~ v a.o m z.:H G: H ;~. H E ~.x-ro z s o ~:_ z U.~,b ~ z m .`-l v .m W' 1J w ~.-~ o x ro ~' 7 N JJ ~'. z m fT ro a 0 a~ N-F W H ~o [G .~ •• w tD U Ul W -.-1 QzH H ~ ro N _oaNQ?, aW bi w Fi aroi W x v -.t ,~ ~ w H o s w° °~' °~+' !~!~~ ~O v •wiraw S~ w A > H W ~ ~ Q .r ro N O H .+ ~ W W OrW70 ~ bOIH H W>3 .1 W O W H e A a [~ aO.i H H X ~ ~ H aw itl azy y .. .. C ~ W~W {H, O £ 7~i wHZp m m ~ v ~ ~ ~ m a a a a > a O H °x ~ o 0 W U O ~z~ H H 0: ~z~ m o ~ a m"` `~~~ y •• ~ w W ~ H 'tl N ~ O v 11 VI H N WW Q F `J H U x W U1 W W U rx~ws7 N .. W O 2 ~ L H Q .H7 w p ° ~ ~+ -- y- ~ w ~a 1a r W~ r~~C ~azt w' U k ~ a ~£W H ~ °o~a a P y ~ ~ a C7 U CI ~ a o w ° z O x W N bl U Q r N~ [ W[sy. H~ H CC ro `~' W W' a vH c°iJ . N O30 E U 3 w GWaI K rw-i N C O W' Oz F H ,,~~ W o c w ooa. t~i> C m(£H~aaz g N N V 0 SOi .-7 ~ F V O S1. iS rrrCCC U W o y vo,cv ••ia"~ z wa° °a'v c ~~oo owmwino~u°~ga~ H H N H e x '., .. m •rUt y U ~ t° ~1 Qi a i m mo ~ f ' ~ Q i Q . o + H ro~aW w w ~ v a w - i G: N W s + A W w ay Ll '3 W H W W v W N ~ ~ ~ £ m q V w ° `E w o O j . WW ~ ~ u i U W U r -f N i W ( ~ •. A ~ ~ EO ~ H h _ Q~ E > W W N cn`~N °a~a ~ FF = o r vGl1 FH-i a H R urn a lx zQu Cn y~ 13 3 H W H > N W ~ z [ H ~ O ~ ~ vi N V U .c.~ •.i ,C ~C O a aw ~w x a i ~ E 1°a~ ~ a~ W N O a ~ ~ u Z ~ N N a a i ~Uz m' aoo ~ O ~ H Yk U' H L ~ ~ .1 J q W N a H z QI p H ~ H a ~ H U ~ O W W ° l > > ~ - --~wo U W ~ UJ W ~ O W m ~ ~ . -1 U O ~ H ~ H m H~~~nx ~ H ~ G w v izo N ~aaiarz a ~ a z w ~ w v i sf HH O $ A + W'U PU7. Q W W y ~ o 9 '~ H~wxa a z~ zz o z A a ~ O m W H W O u o ~ a nwa~~ ~ ~~ x~` w a s ~ w ~ r+RCN ~ ~w a 77 ~G G~ ~ ~a £Gic~ r m GG Rt a i ..z r~iaw .i--77 ~ -- w w z w~a ~ w° aroi~a~z~ z w ~ ~ ii, a~.w w °u W N C W N U m v w W 0 0 a E~ ~ N rt U ~ W ~ v ~ N ~ ~ S -t W m ozQ ~ i N W a] o W VJ O m £ (A H vl H F N N ~ O H t O ' Q ~ v z ~ v m N m G F ~ N' m q W L a H ~ q ~ L l ? , w N b a C7 ? , w H - b i i m O z i •+ a ar ~ + a - 3 w v x ~ 3 w w ~ w ao w . N ~ "' ~ ° H `' H a x r - •.+ o a ~ •.~ o m o w ~ "' o .,i H m ~ H w w o •.~ m W Fc m N U L m U VJ -rl ~ m N U m rn U -.i m w ~ w v .t ~ ~ .. ai -.i R Q C E ~ > F ~ £ A O E D m a m a o H _ N w W ri O) _ N ~ o O a o N VI W F N m H w s~ 3 ~ w xa cn w ,~ W ~ H j S~ ~ £ U H ;~ Sa ~ h o ~~ m v `n o ~ ` ` w ~ ~ m ,~ -.r .o ~ N -a ro .c w N b J.7 OJ ro ~ ro H ~ V] O N OJ N L Ol b O N N ~ O H - a a a W ~ > a a a W > ~ ~ ° o v ~ q ( ~' V 7 ~ 0. o ~ Z ° N va N ~+ `~ a ° 'i ~ ,z u m rr - m ~i HV' ~ w [Lil 3i g x - v v ~ v v z G W w W a C m W G ~ ~ W G V >U y W O U U1 ~ o ~ F ~~ O ~ x ~ Q ~ .. p ~ m a~ ~ q ski a . w H ~ j V F A H z f A $ ' L C A w a Q ° `~ G v a ° `4 w ~ v ~ s , ~ u o n s , a w ..~ N a H U V a o .-. q . a ~ ~ m ~' w ° °ro a ~' a a H . E" ..o a 3Ei3 ~W4 ,~t ~ > aW~~ ~ s H o O ~t C H a~ z a z w O~ a z a m U W H y O V] H ,7. ~.] O X 'a O VI H U . ox,~wa W rt W z H a~ H W W H ~vQ.-i N H z X zoa~wa O W ro W H ai H .. . W aH W O H H H N~ W O g~ cWi] U r f a z r1 W Qg C u] CQ W Cry 3 r+ Sa S4 z ro aU H m y, W au a H z ~--I SG O xH rt U a t i O F v~vui H Q to a ~t w w w RC ~ W m ro ~ FW-e v m a~ a m N u vat £ •• ~ w w z z~ a~ a £ h o ~ - z r~ ro o °zz o 7 - ~i m mo HwaF W o ~ N z m o •• z ~HH . . ro ~ `~ x o x N ~ a ro w~ ~~~ W o ~ ~ "~w rtH~z a a~ ~a.y "~ W m ~ a a~~w 3 .. u .. O .~ W a ~n S .. y .. O •.i F o a~ W m U .# b •• m RC o s.r u) W V A 'c3 •• U a c ~ N a o o ~ a w ~ ~ ~ u a v -~ i •• E L [q N Gl l 0.1 v u H~ W ~ v •• E 17 U) Ul W , ro S~ a ~~uo~ ~ m o~ ww ~~~°o•"+ ~ ro o0 N W w W u1 O £ ul V1 W' N W f0 W U1 O £ pl U 0 H 0 H q w ° N ~ o H z ~ ~ u~ H °u °~ ° , 1O~ ~ `°~ ~ ~o o av~ o ~ i N ~ ~ : m w ~~ - e m u ~ N N m ~ W N N W x a o a A ~~ o~Q ~ a~a H o i •O~ v0-t ~i N' •~ C7 A •~ w ~ N ~ ~ 'd ~ ° w •.i u q H ~ v •.i s~ ~ ..v a~ C ~~ F a ~ ~, -.~: ~, a ,-, ~, ~ a ~ ~, ..~ . :H v ~ .~ o ~- ~ m ~ 3 ro o ~~ ~ ~ z~ . ~ O ~ d a A aw ,~ .a _m WW ~.' z . qsw • , . q . ~ sw m. o W a p x O H ~ ' . .. ~. ~ - , ~. _ .•.~ .. q ~ W W u H N S a z ~ ~ ~ ~ ~ e 'U > - ~ N > a H 'A A H N ~ rn ~' ~ a ~ a ~ a ~ a > ~ ` 7 C7 a' H O W . H N , ~ V] H "' "' m Lap H m ~ in .q mHH U 'N ~a ~ O ro - N U U m H N~ U w W x .~ h •• s+ s, o a a ~v mom rn ~ H ~•.~ m s, a ~, H ~~ s, c~ > w ~ ~ o a w ~ ~ a° e ~ ~ `~ °~ a° ~ x ~ o V1 O W x H N s N U7 O w H R U NN X ~ ° L t7~ ~ ~ x7 W N HN ~N a . ro o- o N w ro z- -.+ N R7 ro o o ~° A u ~n Sa a H A H~ •~ o H A u in H w v v rwi `" a ° B a w m rzC Z v m `""i ° w w •3 ~ ro d w w w a ~r rt w. v~ E -`r as Uor~ . 7 > xw 5 H > aw z F CO~ A O H mb-°i }t~p~q ~ A ~b-.°-~ H EA rt~•fOi p aap i+U~O ' u -.{ ~~ FC W x O ~~ m N ,~-.+ ~ H O w S 7 m a~~~ W A C7 xROz JJ 'ZS .~ U U a H L 'U +i U U L 'U -.i U U p H H m ro tt O 7 C7 ~ m m_ N O ~ a m m .u U7 S O H ~ m a ~ ro s, ou,zw aaa ~ Ho ro s, o a 1yx ` ~a > e m - a ~ m ~, aaa oaH > W c q ~ . ~r n .7 A w a w ~ wHa w H W > z~ ~ W uiPw W a ~ H h H , ~. aw H N ~~°z G ` ° w m az ~ 0 o o ; ~ n ~77 ~ ~H A>2 L - a~i ~. aat7 ~>w m m ow a x~ car U ~ U ~ ~ w v " ~ v o a °1w - i [[ ~~ N W ~ 'L (A1 z W~ ~ N W ~~ O U ~ ~ Q r U ~ i ~ ~ a ' + - ~ m W QQ ~ W L7 ~uSl ~ w tC O~ ~ 7 7 W ~ W w W C7 ~ ~ ~av a `~ ~ m r ~ m z zv° a~ w z L O a z N a~ i~ O H L z O W RC N H ~ m H W UI w W. N H H [Q ~ fA H C7 W W a ~ t u Q o ~ .~ a~ v l si ~ .-i Yd 3 g l ~ Wc~7 p ~ r 1 F qq p H W h W S ' a ro H W ~ y H U ~ i O W W p ~ w ~ amw t 4 W~ a Q w ~ H aw° o a . a@ i ~ w m ahzaH A a u a ao~n a ~~ ~ w ~ ~ a u s w ai ~ m y o a~ ~ w ~ ~ m aago a w a wz~ Y ~~ '+ W ~ 7 ~+ m N t O W '.7 ~ .~ ~ ~ C X ° H 7. H~ 7. a oa a-- zHaxo .~ a z m a s , H zw ~ U H W O F cA U ~ U iS W O a w V] z"' °wa wo°'a'a zwwwa a z~ w m nH °~ off H V1 w auz H H `~ H q x oc~u w a W - H O Z o ~ .r w aw[~,mo caw ` Ft w r~ wE i ~ E H c~uo .x qw ~ F o0 m o H> p W cq wa ax , La H O cq U.]aRC O H a ~,7 W j 7.pU gO O H w O H U ~ ',L V1 H -- X H O U v1] W U H vJ H ~ xw `adz U xCv~~ g7R1 m'C~rx°o° ~ xa cm~ ~m~ w'~Hz w x `ate H m am m-- ~ ~"~,h~w,acn ~$H N~ p~wa-~ s~.u ~sai~ sa mN.~ ~ -aa J~ s:..zwom s°,"~ ww ~~'. ~ •• H H mvm ••w~~~ o A µ m .7 GOG in -qHq: a..W r~ o ~ m :rt qN ~ !~ J.4 •7 .` ' :o a H-~ -.~i of 2 a m ~ 3. 0 . v1. O - 3 - z O pp~~ R: o N 0 m H aC O • '3 H 3 `~ H. v1 : al - >+:O rt s W W ~ t1j ~-. U .J4 Y~ . m a . ~ H ro x FC tq w ' rvt N -w N ~ a~W w ~ ~ a V) ~ L w H iC. H ~ ~ .. 'O A t•1 w . '-. . S+ x.00. z~ O ~ ~ rn . ww z.aa ro uRcc7m ~ ~ w a i~ fH c a o y N 4: •• v U•C: 2Y ~.. Ri Y N N N UI ~ O o i v] w.U .C ~O C7 ~: -•• N R ~N W N' G/'7 .i a~ N fJ N'A .C ~ xy N tll 'O W' N N"F ~ Vl a N . C .+ •• St lT u ~ w r-r a N N -.~ St fi U H , a N C .~ •• k bt U v] a H e zw m w w w ro s, z a „ a~wo E ,~ w v v m H H zmro s ro u~-a~ v :~ m N a ~' ~~ ~ o .a m o a a u~c~m ~o .-~ u o ~.~ m o. w zd ~~ a ~ o •.+ o~ a~ ro o a N W U1 W u] O£ .y O O N W W W W O$ t0 7. N W U1 W VI O ~ ~A W~ O o H o H o~ H •, - wo H U [w'J ~ •• ~ o ~ ~~ ~~ ~ ~ u a o o ~ A. q ~ a ~m w H " ~ v ~:, ~~ rz •.~ o -v. a A ~ w c` ~.+~H d w m A HHo-Wi u javwi r ~n m +~ ~jU H . ~ 1'. m U t!1 - . .-~ N U a O~ tll .~ H Z x '~ m a b ~ N~ ~~ - r, .-~ ~ q m + N W O ~zA v HuwiA aw~ F Q U W }Oi U Oa F ~ a a i° `~ H .. y .. .. ~ N H Ho ~ y•n m~~ V1 i.l •rl ~ [V W .. ~ m ~ m fa O x W + a aaa > H t~ U U] .'] ,-. zAH w W r H z . H ~~~ N U lp J3 H U m y . mx~ c~~~. ~ L a ~ ~ G ~/J ~ O H. W C7 rH~ -.~ . rat U U W x : . . A H ' H ~ W 5 FC W O3 O w Wu1V 7 ~ W aroi o ~ °a ~ ~ G w m ~ w ~',. }~ U vH ~ F ui W UECH7 z ~d t o'' v w ~ a o ~ w a a ~ w Si RC .-. H H C7 ~+ ~. W ~ X F~ HC7 ~.._ U aj ~ a W zOOU°U za °w m a>.wwq.. 0 o ww~jm~jgg~ w [.~ w X N [A ~ U 2 H~~ .. - H O }{ U H V1 a 7.. H x ~ wwm ~`-~o> `aim mm Hh H ' ~~ a~'i.rm~wHOZ. °wa °mx s'i+~'~auo m a a m x o~ H o ~ ~~ .. ~ cn:w. w m a>s.Eoiwaa N f. '.. _N.Q N U_.U raC U H a E. m •ai ui w m sOi ~ a a z aaa y ~ a ~u~Ha N win°wmoE.r°nov~i~ 0 H ..~ , aa N z Q ~ O z ro ' a~ H o N H U ti ~ u W . ' N i -. .. H ~ d•' `~ o ~ ro u ~ m ro z -.-1 - N £ .R i ~ •. 1 @ l RC a. O a '. W ~ ~ ~ .W ' ~n:~0 o v ~~. E .biw H ~ H '. W w u ,a ~ m ~ ' z U .ro y fi H b :' '0 - a.1 ~ Z. ~ •.i O W. C7 v W H >,o R H v1 N ~ - _ ~ H --m ~ N..L m O ul R a •• U' W y' ~ q rt W ~ '~~ H m w > ~ r, n u i ~ o H rn ° w ~ ~ ~~ ~ U m V -. a c i a Sa •• -. i btk -.1 to O 3+H7. a ° > ~ # ~a• Hz (. i N me A -- OH CH7 ~~ ~ ~ 7-. aVi E N k ° U a H { F A ~ U W l i ~ v rt W a i a w ~ ~ . b H O l U N ~ - i r i m E x o m ,~ •.~ x a x :.. a ro N Q _H. # rt # a ro N b'~aa O >~~ O S+ O ;1' u. 7 y o m ' . D+ o a< x H~ a s : H ~ o a a > . p `a~ c ~ a ., y .~~: O ~ ~ !~ ~~;. ' 2 ~ o. N H x v1 H W U r.•o H m U H H ~ 'I+..(6 o: t0 ro fn ~ H_ Ul 1.. V: ~ W ~ £ H ~ ~~W q Cp - N G U) H - x o x N U N . - u (W W O . .Z :~ H U N. ~ x ~~H z H ~ ~ ~HC ' - N ~ [A U ~, o Ham m H ~ a W H .-~ H U' .. ('. W Ol ~ H H - ~ Ul ~'riH r.Cx H Ww°' ~ ~ a U a U ~ ~ ~ H ~~ H IK U U ~ [ ~ - ~. ~ O\ W ~7 a H V ~ >+ ~ a m ~ ~ ~~ ~ ~ a a 2~ F H _ ~ v i~ . ~ z.Wx w m a > ~~a~ a ~ ~+ F P m ~a.ll ~ w 9 W ~ H ~ro ~ LI ~ .~ H~ O U H~ H w x -"'"~ ~ U x W a ro ~ O 3 AN ~.a 3 ~ rt ~ ~ £ " C W W 'N ' ro w ~ i i.. W v1. 'U ~4 Sa H fk~0 ~' z o m "' w as m ro x s , i i~ v fa z v W~ A~. .~ .. ' ~: O .S •• O W • H a W N ~ ' i , N N N [n U mC . ... N. N - E 7. N rov~vv a' i.~ C ros~owa C O ~+ H O -. ~~ E . ~ ~ ~o H o W O •.i m W W O ro 0 a' a H £ m W U W . S.W H N H '~J •'-~ h N H N ri ~ wo_ ~ ~ o .u A4 .07. o ~ o a~ `° ~ x z ' `° ~ ~ w W a x am i ~ ro . ~ ~ b ~ ~ a i ~ { .~ ~ a: . 3 w v z w U q 3 w .. .W 3 W A - w. . .. ~ , b r i m H H W ~ .. ~ v w ~ ~ > ~ ~ _ ,d > .,y > v N 11 a ~ tO ~ ~ v W ~ C v ~ ~ Ez-~ ~ w ~ N # .~ > W H bQ ~,1 W [~ - m N ro u1 .C ' 11 U] H 3 N [s7 £ N lfl 4'. O i~ ro N C. W O i~ ro H rn V LL' O a o N U ~ U U U ri ~ m H W 0 '.++ a N W T W 3 1 •• FI O ~ ~+ bl •K 11 r-i S-1 a ~ rn ro RY a v w > as O~ ro £ q -~+ E ° v > ~ •~ E v > # o o D ~ ~. 7 o m ~ ~ # rn rr a f O m ~ W o .y W V N o .~i a ~n # N q ~ a ~ N ) N N N a al HN ~.OlH w H ~o O FHo Ha u~o H ~c~a a u~nx a u~n.a o R: W b u1 w LL W 11 m z O -H H 'O u1 w u W +i £ ~ m v a1 'O W •rl 0 1 a w t° w~°1 ~ aw a w ~ av a as uw h a W w m' .. .. R p,v o ~ ~ ~ •• w v m .. .. R a,v o •• y .. .. O m av o ~ .. F A rob •.+ w a .° ro •o -.+ H .° ro •o •.~ H H O £~ m N •iJ O O £ a m v O £~ m N # m ro L N ~ VJ W ,7. m ro L N ~ m ro J-' v ~ # m # a U b is a a w O U H > a~ W a ~ N f~ a a a O N >~ ro ~ ro N a a a a O > 3 a W Wa ~ n E` x z a E a n ~ O z N O .. ~ E F m ~ a H H W O m m 1 ~D 1 a ~ .. _ ~ . w~ au m m cn m m 1~a w °° ~ u- v, ~ ~ ~ ~ ! n~ z o m wz a~i F • 5 C ~ ~ H U i~ w ' 0 ~ ~Il W H •~ j• A ,' H a x as ~+. ~j i-4 •-~ ! ~ ~ U ~ H o ~ ~ a CJ L U U .1 J ro N w~ o ~ ro O a -1 y ] J m et ro m c~a w ai ~mm u ~r n c~ Nz H .7 ~ R C w s.~ ~ ~ H at •~ s~ 0 ~ N s+ . -~ P ~~ > o a O z a i ~ 7%~ a i ~ ~ N a v s~, J ~ ~ L W u] H b O 'U H - W .• ~ Z £ 0.Hl W VZ-t v y £ W N o m .7N P 1 5-1 ~ .7 ~ W U} f-I ry E {p RH'. , ~G q k ~ '~Z. a m p ~ ~ ~ ~ ~! 3 + ,y ~W.1 C r.~ it a ro o H H w ro s+ ~ a ro a °u -- a a °oao °vo m a °aa "~ a a m ° ~ wu~ H ~ o Rsma ~aw~o l c z ~ w W~ 3 W s~ ]C ro W ~ W r~tt W H [ ~~ [ - m j N > i H W a ~ O U 0 2 N U .. 7 7 Z W O H {~~ { U N P ' O v W " 'O rt ' U U H U H U CL ~ E W~~ O .G jpJ ~ x ~C ro 3 C W L E O W ~ . 7 P• O a ~ Sx P: W W S~ V aUa v DU + a x RCH ~ moo O~'] RC N ~ O a ~ WH ~~ w mv'°~' awwwx 3 a n ~~~ a~W ~ h A a v ro •• ao ~ o H •• m ~ w a u ai .. rl O O W - H ri '~ U •ri -- U" H m •7. "£ (~ H H H ~7, O '.]' :H Ol ~ H m a W N V7 W O N~ W -~ --. h. m w z ~ ro x s, "' -- H o x a ~ v x w a `J w x o H (n v o ~ fr. " ~w coy 'ro a.:~: a 00 ~ ~:~ ' v i H H a ~ 7 c . ~ fnw„ ~. z~: ~ [z ~'~' W v ~. ~ w w E im£a a ro a. mw. a ro a ,a 'o~ g •-i L ... W M U a .C ~ W O H •U .•• a' a to g,... a~. .-1 U~U1 .. W M N Q .C. >~ b .. 0 3 aJ -,-I -L~'L (n N .4~ 'd.••'C9~ N [.` ' ?G N m. N " O1 O [q Ny.' N m 41~ N ~x ei ' (: ~ N .m . O/ N--'j.. a N E C. •.1 •• 74 ro v~ w w bl U w R: H a H w v~ !Y. .Ol Ql E ai •.i •• 31 W v v CJ~ U V] ro s+ P: O . W. ~.{ •• - } 1 . E a~ m _v d bl U H ro H H ~ H a O ~~ y, ro O .Yi ~ H ~ m .-i ~tJ O •.~ ~ ro O W . ~ W~ •--1 i! O N~ O ~WW ro o W W W W O £ v1 O £ o W W W v] O f m O , ~ W v1 W rh ~ O . £ v1 2 H H F ' N o a~ F H N a H rC w a W .. o a~ W ~ U gz va{ ~o ro ~ £ (# H O~ q U q H U7 w W N p aSw ~ °.~'~a~+ cHi~ ~ -Wi U1 ~ 3 ~+z~z e a~i > w ~ H a~i ~ o~~ W ~ N.C rttH~Ow Ol N V /{ x N m ul -•-~ P~4i U] q w W w ~ w h ~ a ~ > o W~ a° H H O ~ 7. f~-l A U > F N W w ~ ~ 7W, A H e w ~ q a v mom' a aAo ~ ~ ~ W W m a m o WW O E ~ m vara~ Y 'U -.f U U x h C7 a ~ a a ~ ~ ~ ~ r~C 0 ~ ~~~ a o z ~ H ~ ~ Q H H ~ a N F 7 d' aJ H roN P9q W m ~ q F W wRCm v•", z~m °y'm Q°q£ H U q > Fi; z W u w a ~ W ~ ~' o 0 N L W " m q a ~ H ~ 3 H W {q W ~ a ~ O ~ ~ Q ~ ZH U 14~-laaz > w r~ a o~F°+~N ~ W m H o~ z ~a x x a w WW w Hx c04 k~xx~ EOU.Cm ~t H rt W F O U tR V] q W m U~ A x F~ a p.S N U S+ •• N V] ~ W N w V m U y N Pw'. U~ w Q o a o m~ w~ o mo~N~ wa~q~ax~a ~N •• m~ cv ••°~°a H {. ~ N v1 U1 N Wa RC a E ro~ w~ rt Sv+ 7 x W W w W O~ vOi ~ 3 m H W o u to U .~ [x:7 ~n ro s.~ U E 0 RC q ~ O "' N ~ # N to w ~' Ul •.+ s.~ O a~ ~, m~ A a w° o aW N 9 ~a c 'O tq M ~ O W O N C tl ° 0 o N U U q N of -ri H m •• ai ~ u? h ~ ~ E ~ o a] N U v F.N-to F +~ F q O ro O - -.i 'U W ~ -.Li N 4: w 3 W a w x~ O £ 7 ~ ~ O .U 'CJ •'1 U U a ~aw >°Ow a s~ N W L ~ ~ ~ ro ~~ Ul H W v ` ~ w a H / ~ ~ [~ H V? w W o ~ ~ ~ N H ~ ~ z ~ ° H w m c » ~ q # v W W a ~ a ~ ~' wa a ~ Q7y ~ ~ V ~I ( / ~~ H W a Rt a rx a, 3 x ,y C H 7, W H »H a m~ z ~ zz x W ~ a W~ cHi1 W W °uHz °+o~w~ o U Cg ° H> O H P, W W °a` ~ ~v ouQ a ~O i " U v U ~£ a a H W ri u: ~/} N {I •• ~ O N -, U N ROC W ~ Gg 'OT. O rt N U 3 O H ' ~ m -_ a~a ~D go ~ im ~ ~ ,_ ui xro •• > W q E t~ z ~ ro a] N N ro LI z CC 3 ~ O H ~ a i i a H W a1 O W - i W O£ aJ cK S N ci ~ ~O to o ~.i o ii io U ~o U ~ ~ W t0 ro L y~ }N N w H.. ~ ~w N .. U ~.i a~ L ~ ~ m N -,-1 tJ x~ ~, ~ .. N:. v : ~ ~ ~ ' W o •~ ai > a v = ro ~ m ~ 0 d, ~ ` 0 ~ o U U N U U N W .. ai .,, 1I1 .. ai W .~ ~ N RC Oo E 7 ~ D O E ^r o ao .7 m a - O H 1f1 h '-1 N N F N v N F N V - _ r o m o a~i cW7 ~ ~ a~i ~ W ~ q a~ q ~ L v cH~ 3 F v > > ~w ~cr 3 F~ .. ~ o E~~ i m a o £ ~ d _ N ro L N U W ro L N U a aaa > a aaa ' ~ ~ ~ ., - J.! ro J.1 ro _ 13 1J v v v •°'u W N - C H C H - q a ~ w ~ ~ u F w ~ m wa d 3F ~ al W FC .. ~ ~ U ~ q [~~]7 x ~ 7 O ~ F W ~ UI 41 ~ 7a fx H a a z ~ m a o N ' ° ° ~ u° w a ~i w z~ w m~a RC H A HRCZ m W'+ - ~ ~ ~ U ~~ a W C N ~ o x a f `~ ~ RC q W RC ~ H ~ r~aa ~7 ct~~ ct W N C ~ ' - w' ~ 7£ RC 3 U_1 U yy O G {L q O a N ~ N H 3 F 0/ .-. W r~ w al N .., W 3u° •• ~ ~~'o'• ~ ~ 3a u1°° ° m w .. z ° w ~~~ o H . ~~ ~ i main H ~ N N N "N 'z H ~[,' N 0 Ul QI .'i'. P: N W M ~ •• H Ol U H C~ - N 01 -.t .. }+ 271 U O E ii z m m u1 'v w ro St F ,~ a o cn E a~'.m ~ a z w ro ,~ ~ m N H .. ~~ w in ~ a~ ~ O -•+ rt O ~~i}} W H u 0 -•+ 3 ro 0 .-f W a] W a) O £ ti) 2 .-~ W m . W u1 O £ al ~ - - ~ - H a H ~ - - ~ a - ° w O tD U l0 U U] b' G ~ d ~ Y H - tw£ N a~A O vl yG.I~ ~A W U~ ..w ` O ..+ v >. H ~ -.~ v ~ b A C9 .. . H n-i.~: . . ; i ~ u a a~i ~ .u ~' -l H H ~ .. ~ ~-~ m ~ u ~ ~ 0/ ~ cj ~H ~ ro s i w w ro :cn A z w R 3 w w ua : w w H z ~ y ~ ~ - a .. ~iA.'~N of y N N 7 (.y 0 'va~ m a~ •• ~ ' o m A H Ca 0 o r - - ~ - v aHO h S i . a~ ?• w G a~~ - O b ~ rn m u°i N ,G u w w rd ~ cC .. - m U H m yo O +=+ U •.-1 ~ - w .-i N v -.i H E - W Z v l . Cn •-vi 1~i U bl k ~ W~a Ski 9 fZ ' E > v K ~v > a~°w a o m, m ro N ~ F N H_ [~] w o ~ ~ ~ W - Y C7 G RC Y O X W O o ~ Q R ra ~ ~ ~ i F w a 3 ~ r ~~Hy1 w ~ ~ w v w ~ ~ W ~ x ~ ~ P f1 A °1 o ~ m o , wm o •• o i wv o ••ww - u .. Uf A roro-.+ u O £~ M N sa O rtro-.i £~ N uwHO N q FC H H t1 ro •.a U U L ro •'t U U O H .>r w m W a~ v U m ~ a~ v U H £ .c ro e m u o a aaa ~ rt a e m u aaw o a o w >wcau A v ~ FC: P: 7 . -r. C.7 O W - z v a x m o a ` a 1 m ~ ~ ~ 7y i z H O O Za ~ {: ~ ~ O ~ ~ M ~ ~ ~q`o.ro m m` o o d - ' ~ ..-. ~t,H tT ~ 7 m W ~ ~ 9 ~ ' ~' -i b ro ~ v ~ o ~ : , pp ~csa7 i ~C ..N `x W t] L U1 ~ x a. ~ + .. . VJ ' b .. 0.• H H V ~ a -.~ z H ~ ~ H .. Q [~. zg ~~ ~ H H ~ ~ ~ . v] (-0 H ~ .-t fA PCI C7 W ~ H N ~ .-/ U N J-~ w rt c x ~ q 9 a. aro w w a su+ awH aw~i x H ti Q~w w .a ~ au w xwF Ha U Um xw N Oi O F P: . ~. ~~ ~ a y U la rl U S W ' m ~w a x~ ~~~ .~ aH ~ W ~~ z rF a o~~a +~ ro ~ ~ w w w a ~~ °w v a~~ r c? °u o z N u ~ Q rn~ ^ z ~~°u ~vw ~ o • a c m a m x~w i6. fa i F W O H q F a F to a m E O H y 0 u o boy a~ Gv~--H o-- uH v a 'H N ~ U1 H ~ H W U ~ F W O W ~ ' va A~j U 7£ W O w U v C x F z . x H W m ,Z W W '7-. Y - V1 W H : N W !L N f1 •• O W W H ~6 •• N W A w ~ . ' - N F O N~ (A U1 a 0 O N w H -.i W H O H - . ~ ~ - ~ -~~l i ~N.W 7 . .rtFrC H m~ U v uw]~~ m ~ xW .. .. ~ . 7wO .. ~~ rt~z N"~ -i ~ s r H ••£ i t v S bG A [ il N E •• k a U~ O - z~ U . ~! 3 ~ r ~ .. Q .. p .~' °C Cl p~ U E" .. ro. O n u ~] v x x 'U.. C~ r a~ v z .C 'i7 .. F• [[~~ yJ ; O u ri f.' N N N 01 ~T.r : N Ul - t •• H b U H ri C S N ~ N Dl ~ •• N Ul W fC 2 ~ . a Y . - ~ . .. ~N G ~O) ' N . P 6 +~ t4 N 01 N H F 'l-. N ro 11 q 7 f9 R E ,7. N . N [9 N o w' 1~ dl U ~ W b fa w' [q R 7 H W ~' ° ' ~wcYnwaio~r°wz ~w utwvt ~ ~con~oa : , y Rare Features Database Print-outs: An Explanation of Fields The Rare Features database is part of the Natural Heritage Information Sys[em, and is maintained by the Natural Heritage and Nongame Research Program,, a unit within the Division of Ecological Services, Minnesota Department of Natural Resources (DNR). **Please note that the print-outs are copyrighted and may not be reproduced without permission** Field Name: [Full (non-abreviated) field name, if different]. Farther explanation of field. -C- CBS Site: [County Biological Survey site number]: In each county, the. numbering system begins with l . CLASS: A code which classifies features by broad taxonomic group: NC =natural community; SA =special animal; SP = special plant; GP =geologic process; GT =geologic time; OT =other (e.g. colonial waterbird colonies, bat hibernacula). ~: [County]. Minnesota counties (ordered alphabetically) are numbered from 1 (Aitkin) to 87 (Yellow Medicine). CURRENT STATUS: Present protection status, from 0 (owner is not aware of record) to 9 (dedicated as a Scientific and Natural Area). -D- DNR Region: I=NW, 2=NE, 3=E Central, 4=SW; S=SE, 6= Minneapolis/St. Paul Metro. DNR Ouad: [DNR Quadrangle code]. DNR-assigned code of the U.S. Geologic Survey topographic map on which the rare feature occurs. -E- ELEMENT or Element: See "Element Name (Common Name)" Element Name (Common Name): The name of the rare feature. For plant. and animal species records, this field holds the scientific name, followed .by the common name in parentheses; for all other elements (such as plant communities, which. have no scientific name) it is solely the element name: EO RANK: [Element Occurrence Rank]. An evaluation of the`quality and condition of natural communrities from A (highest) to D (lowest). EO Size: [Element Occurrence Size]. The size in acres (often estimated) of natural communities. -F- FED STATUS: [Federal Status). Status of species under the Federal Endangered Species Law: LE=endangered, LT=threatened, C=species which have been proposed for federal listing. Federal Status: See "FED STATUS" Forestry District: The Minnesota DNR's Division of Forestry district number. -G- GLOBAL RANK: The abundance of an element globally, from G1 (critically imperiled due to extreme rarity on a world-wide basis) to GS (demonstrably secure, though perhaps rare in parts of its range). Global ranks are determined by the Conservation Science Division of The Nature Conservancy. -I- INTENDED STATUS: Desired protection status. See also "CURRENT STATUS." If a complete list of protection status codes is needed, please contact the Natural Heritage Program. =L- LAST OBSERVED or Last Observed Date or Last Observation: Date of the most recent record of the element at the location. Latitude: The location at which the occurrence is mapped on Natural Heritage Program maps. NOTE: There are various levels of precision in the original information, but this is not reflected in the latitude/longitude data. For some of the data, particularly historical records, it was not possible to determine exactly where the original observation was made (e.g. "Fort Snelling", or "the south shore of Lake Owasso"}. Thus the latitude/longitude reflect the mapped location, and not necessarily the observation location. Leal: Township, range and section numbers. _ Long: [Longitude]. See NOTE under "Latitude" -M- MANAGED AREA or Managed Area(s): Name of the federally, state, locally, or privately managed park, forest, preserve, etc., containing the occurrence, if any. If this field is blank, the element probably occurs on private land. If "(STATUTORY $OUNDARY)" occurs after the name of a managed area, the location may be a private inholding within the statutory boundary of a state forest or park. Map Sym: [Map Symbol]. MN STATUS: [Minnesota Status]. Legal status of plant and animal species under the Minnesota endangered species law: END=endangered, THR=threatened, SPC=special concern, NON=no legal status, but tracked. This field is blank for natural communities anc1 colonial waterbird nesting sites, which have no legal status in Minnesota, but are tracked by the database. _N_ NC Rank: [Natural Community Rank). -O- Occ #: [Occurrence Number]. The occurrence number, in combination with the element name, uniquely identifies each record. OCCURRENCE NUMBER: See "Occ #" # OF OCCURS: The number of records existent in the database for each element within the area searched. Ownership: Indicates whether the site is publicly or privately owned; for publicly awned land, the agency with management responsibility is listed. -P- Precision: Precision of locationaI information of occurrence: C (confirmed) =known within 1/4 mile radius, U (unconfirmed) _ known within 1/2 mile, N (non-specific) =known within I mile; G (general) =occurs within the general region, X (unmappable)=location is tinmappable on USGS topographic quadrangles (often known only to the neazest county), O (obscure/gone)=element no longer exists at the location. PS: [Primary Section]. The section containing all or the greatest part of the occurrence. -Q- uad Ma :See "DNR Quad" Rec #: [Record number]. RNG orRng: [Range number]. -S- SECTION or Section: [Section number(s)]. Some records are given only to the nearest section (s), but mast are given to the neazest quarter-section orquarter-quarter-section (e.g., SWNW32 denotes the SWll4 of the NWl/4 of section 32). A "0" is used as a place holder when ahalf-section is specified (e.g., ON03=refers to the north 1/2 of section 3). When a occurrence crosses section boundaries, both sections are listed, without punctuai~in (e.g., the, NBl/4 of section 19 and NW 1/4 of section 20 is displayed as "NE19NW20"). Site: A name which refers to the geographic area within which the occurre . e lies. If no name for the area exists (a locally used name, for example), one is assigned by the County Biological Survey or the Loral Heritage Program. Source: The collector or observer of the rare feature occurrence. S RANK: [State Rank]. A rank assigned to the natural community type which reflects the known extent and condition of that community in Minnesota. Ranks range from 1 (in greatest need of conservation action in the state) to 5 (secure under present conditions). A "?" following a rank indicates little information is available to rank the community. Communities for which information is especially scarce are given a "U", for "rank undetermined". The ranks do not represent a legal status. They aze used by the Minnesota Department of Natural Resources to set priorities for research, inventory and conservation planning. The state ranks aze updated as inventory information becomes available. State Status: See "MN STATUS" -T- TWP or Tw [Township numberj. -V- Verification: A reflection of the reliability of the information on which the record is based. The highest Ievel of reliability is "verified," which usually indicates a collection was made or, in the case of bird records, nesting was observed. Plant records based on collections made before 1970 aze i~irverified. Voucher: The museum or herbazium where specimens are maintained, and the accession number assigned by the repository. In the case of bald eagles, this is the breeding area number. ! -W- Wildlife Area: The Minnesota DNR's Division of Wildlife administrative number. Data Security Locations of some rare features must be treated as sensitive information because widespread Imowledge of these locations could result in harm to the rare featnres. For example, wildflowers such as orchids and economically valuable plants such as ginseng are wlnerable to exploitation. by collectors; other species, such as bald eagles, are sensitive to disturbance by observers. For this reason, we prefer that publications not identify the precise locations of vulnerable species. We suggest describing the Location only to the neazest section. If tlris is not acceptable for your purposes, please cal] and discuss this issue with the Environmental Review Specialist for the Natura] Heritage and Nongame Research Program at 65]/296-7863. Revised 9/2002 Appendix C Final Report Mussel (Bivalvia~ Unionidae) survey of the Mississippi National River and Recreation Area Corridor, 2000-O1. Page 27 3.1.7 Upper Pool 3 Upper Pool 3 was the most species rich reach in the study, and overall mussel abundance was second only to Upper Pool 2 (see Table 3-2}. A total of 2,486 mussels of 23 species were collected and average CPUE was 128.3 mussel/hr. The community was dominated by O. reflexa (47.2%), A. plicata (25.0%), and F. flava (10.I%). The remaining species were uncommon or rare but include nine species listed for protection in Minnesota: 1) endangered - Q. nodulata (0.3%), A. confragosus (0.2%), 2) threatened - Actinonaias ligamentina (0.2%), Ellipsaria lineoloata (<0. } %), Megalonaias nervosa (O.l %), Obovaria olivaria (0.2%}, P. sintoxia (0.2%), and 3) special concern - Elliptio dilatata (0.6%), L. recta (O.l %). Also noteworthy were the high number of additional species collected as empty shells. Most of the additional dead species collected were sub-fossil or long dead specimens indicating that historically at least 37 species were present within this reach (see Table 3-2). In this collection, two federally endangered species, L. higginsi and Q. fragosa and one species not previously recorded from the Upper Mississippi River above Lake Pepin, Epioblasma triquetra, were found as empty shells. As with the other reaches within the MNRRA Corridor, the mussel community in Upper Pool 3 was relatively young. A total of 68% of the individuals were <11 years old (see Figure 3-4) and 87% and 74% of the species had individuals that were <11 and <6 years old, respectively. Comparatively, the mussel community of the lower St. Croix River, which empties into Upper Pool 3, shows a more typical age class structure of a healthy mussel community expected in a rather unaltered river (see Figure 3-5) in that many age classes are represented with older individuals dominating. Older individuals dominate the community, probably not because recruitment of young is low but because of increased survival due to the sustained quality of the system and the long-lived nature of mussels. Although most of the 22 sites sampled had moderate species richness and density, six sites stand out as supporting very healthy mussel populations (Sites 121, 122, 129, 131, 135, 137). Sites 121 and l22 were very close together and between two wing dams downstream of the HWY 61 Bridge and immediately upstream the inlet to Conley Lake in Hastings, MN (see Figure 3-8). At these two sites, a total of 829 mussels of 18 species were collected and CPUE was >260 mussel/hour (see Appendix II). Included in the collections were A. confragosus (endangered), E. lineolata (threatened), M. nervosa (threatened), O. olivaria (threatened), and L. recta (special concern). At Site 121, along the bank there was evidence of a midden pile containing many sub- fossil or long dead specimens, probably discarded by humans, muskrats, or river otters. Among the species were E. triquetra (threatened), Q. fragosa (federally endangered}, Tritogonia verrucosa (threatened), and Plethobasus cyphyus (endangered) (see Appendix II). Also of interest, many long dead shells were scattered along the exposed sand bar upstream at Site 118 near Hubs Bail Marina in Hastings, MN. Among the collection were empty shells of 17 species including Cumberlandia monodonta (threatened), L. higginsi (federally endangered), Lampsilis teres (endangered), and Lasmigona costata (special concern) among others (see Appendix II). These sheds URS Memorandum Date: February 13, 2008 To: Suzanne Jiwani, Minnesota Department of Natural Resources From: Tom Johnson, URS Corporation Subject: HEC-2 Analysis for Hub's Marina Expansion, Hastings, MN This memo summarizes the analysis of proposed fill and dredging at Hubs Marina and the effect of the proposed work on the 100-year flood elevation. Hubs Marina desires to re-establish the shoreline downstream (SE) of the docks that has been eroding over the years. The fill material will be obtained from the proposed adjacent dredged area. Hydraulic Modeling A HEC-2 model developed by the Corps of Engineers was obtained from the MnDNR as part of another project. This is the same model used by Sunde Engineering as a duplicate effective model for the Curt Saunders marina just upstream. Examination of the COE model indicates that Cross section 814.10 was located in the vicinity of the Hubs Marina. The approximate location of the cross section is shown on the attached figure. It was located to match the high ground on the south side (right) side of the river and also located at the correct River Miles station (814.1). The cross section may not necessarily represent the existing (eroded) conditions, but may represent earlier (pre-erosion conditions), or may actually be located slightly upstream where the left channel bank is more pronounced. Nevertheless the Cross Section 814.10 was used to model the proposed fill. Models The following models were developed. The Duplicate Effective Model (Dupeff.h2i) was developed from the COE model by truncating the model upstream of Section 2 (above Lock and Dam 2). This was done to reduce computer output. It makes no difference in the computed water surface upstream of Lock and Dam 2 since these elevations are controlled by the L&D 2 and are reset to a given elevation by an XS card at Cross Section 0. The Corrected Effective Model (Correffh2i) was developed from the Duplicate Effective model by copying Cross Section 814.10 downstream 250 feet and upstream 150 feet. These cross sections were located downstream and upstream of the potential fill area and labeled 814.09 and 814.1 1 respectively. It should be noted that Cross Section 814.1 l is not the same cross section as used in the Sunde study. ~~~~'~~~~ Page 2 of 2 The Proposed Conditions Model (Prop.h2i) was developed from the Corrected Effective Model to model the proposed fill. This was done by extending the top of bank into the channel 35 feet and sloping to the existing grade at approximately I .SH:1 V. The attached cross section drawing shows this fill. This fill would represent a reduction of 350 square feet from the conveyance of the total 42,000 square foot conveyance area for the cross section at the 100 foot flood elevation. Results: The results of the modeling are shown in the table below. The fill at Cross Section 814.10 indicate that this fill could increase the 100-year flood elevation upstream of the marina by 0.004 ft. This increase would only affect properties immediately upstream of the Hub's Marina, since Lock and Dam 2 controls the flood elevations upstream of that structure. It is conservative in that the modeling does not take into account the dredging that is proposed and will be maintained as part of the project. The only properties potentially affected by an increase in flood levels would be the Saunders Marina and the City park across the river. Cross Section Duplicate Effective Corrected Effective Proposed Natural Floodway Natural Floodway Natural F}oodwa 813.84 Water surface 693.213 693.387 693.213 693.387 693.213 693.387 Energy Grade Line 693.595 693.784 693.595 693.784 693.595 693.784 814.09 Water surface 693.515 693.696 693.515 693.696 Energy Grade Line 693.734 693.923 693.734 693.923 814.10 Water surface 693.536 693.716 693.532 693.713 693.530 693.710 Energy Grade Line 693.754 693.943 693.751 693.940 693.753 693.943 814.11 Water surface 693.543 693.723 693.546 693.727 Energy Grade Line 693.761 793.950 693.765 793.954 815.05 Water surface 693.869 694.062 693.866 694.060 693.870 694.064 Energy Grade Line 694.046 694.237 694.044 794.235 694.047 794.239 (Note: Output precision to O.OOI feet obtained by using the READ95 program) I i O 1 ~ ~ O ~~ ~ U o N ~ ~ N ~ W ~ L ~~ ~ U /Ln V } i S ~ } X (~ f [,~,~ ~ ~ 1 O CO _p I O } ~- J ~ ~~ O O Z I i 1 S ;~ J 3 ' p I- O W w LL Z L1..~ J ~ ~ p U ( ~ ~ ~ O Q ~ O ~ ~ p Z ~ O ~ ~ I o ~ l 1333 NI 33b'OS ~b'0112i3/~ ~.. 0~ OZ OL 0 200 ~o0 0 20o Feet Cross Section Location ~~'~~`R IS AN INDIVIDUAL PERMIT REQUIRED? What can I do to keep my shoreline from washing away? Por most projects consu-ucted below the ordinary high-water level* (OHWL) of public waters, an individual Public Waters Work Permit is required by the Minnesota DepartmeniofNatural Resources (DNR) . Rip~-ap exception: An individual permit from the DNR is not required for riprap placement if the conditions outlined in this information sheet are followed. skate jurisdiction extends waterward range of water-revel fluctuation varies from lake to lake ~ ,,,~ ordinary high=watertenet - - record high - water ievef ~~ average water level cattail, bulrush, sedges, and other aquatic vegetation Shoreline cross section_ If you have questions concerning the contents of this information sheet,. contact your local DNR Area.Hydrologist. See contact informatiorton reverse side. .Please note that local units of government and other agencies may require a permit for this project.. *F'or lakesand wetlands, the OHWL is the highest elevation that h<~s been maintained as to leave evidence on the landscape. It is corninonlythat p~inf vv~here he natural vegetation changes from predomi- nantly aquatic to predominantly terrestrial: For watercourses, the OtlWL is he;top of the bank of the channel. For reservoirs and flowages, the UHWL is the operating elevation of the normal summer pool. If your shoreline is eroding, any of the following events may be destabiliz- ing your soil, resulting in erosion: fluctuating water levels, increased wave or wake action, ice pushes, loss of natural vegetation, and human activity. Protecting your shoreline from erosion may not require you to replace natural shoreline with ahigh-cost, highly engineered retaining wall or riprap. There are affordable, low-impact methods to stabilize your shore- line and still protect property values, water quality, and habitat.. The Minnesota Department of Natural Resources (DNR) encourages you to consider planting native vegetation to control shoreline erosion, enhance aesthetic values, and contribute to better water quality in your lake (see Lakescaping information sheet). Both riprap and retain- ing walls can reduce erosion, but they can be expensive and negative- ly affect lakes by creating a barrier between upland areas and the shoreline environment. Riprap Shoreline stabilized with riprap and enhanced should only be used with a vegetative buffer. where necessary and never to replace a stable, naturally vegetated shoreline. Additionally, installing riprap on a stream or river bank is a special condition that may require professional advice to ensure that the structure will stand up to the fluctuations in water levels and flowing conditions. Natural rock riprap consists of coarse stones randomly and loosely placed along the shoreline. You should consult your DNR Area Hydrologist to determine whether your shoreline needs riprap to stop erosion. If there is a demonstrated need, such as on steep slopes, you may want to consider placing riprap or a combination of riprap and vegetation. In most cases, vegetation planted in the rocks will stabilize the riprap and improve the appearance of your shoreline. Naturalizing your shoreline is the most important contribution you can make to enhance water quality, maintain fishery resources, and provide wildlife habitat. Paee 1 of 2 • The riprap must not cover emergent aquatic vegetation, unless authorized by an aquatic plant management permit from the DNR's Division of Fisheries. • Only natural rock (cannot average less than 6 inches or more than 30 inches in diameter) may be used that is free of debris that may cause pollution or siltation. Concrete is not allowed. • A filter of crushed rock ravel or filter ~g , fabric material must be placed underneath the rock. • The riprap mast be no more than 6 feet waterward of the ordinary high-water level (OHWL; see sidebar on page l ). • The riprap must conform to the natural alignment of shore and must not obstruct navigation or the flow of water. • The minimum finished slope waterward of the OHWL must be no steeper than 3 to 1 (horizontal to vertical). existing slope TYPICAL RIPRAR DIMEN5I~NS {not to scale} ar11M~ ~~~._ s ordinary high water level average water level ::r, r,y ~ 2 z,~ fitt~~ ~r;~ ~ ~;' ~.' ~ 6~ ~~~>~~ ,~ • The riprapped area must be no snore than 200 linear feet of shoreline along lakes and wetlands or, along shorelines of streams, must be less than five times the average width of the affected watercourse. • The site must not be a posted fish spawning area, designated trout streatn; or along the shore of Lake Superior. What are some other issues to consider? A row of boulders at the water's edge is not considered natural rock riprap. Rows of stacked boulders function as a retaining wall, and installation would require an individual permit from the DNR. Retaining walls are very damaging to the near-shore environment. Retaining walls cause wave action that scours the lakebed, displacing bottom sediment and creating an extremely sterile environment. The cumulative effect of numerous wall structures on a lake reduces critical habitat for fish and wildlife resources and much of the food chain they depend on. Retaining walls require structural maintenance and are frequently damaged by ice action and undermined by wave action. Rpprap is not maintenance free and does not eliminate ice heaving. but it is easier to return the rocks to their original positions than to repair a wall. Consider planting within the riprap to add color, interest, and diversity. Live cuttings and plant plugs can be planted within riprap to provide additional slope stability and Give your shoreline a more natural appearance. x;2003 State of Minnesota. Department of Natural Resources. Prepared by DNR Waters. Based on Minnesota Statutes 103Cx Public Waters Work Permit Program Rules Chapter 6115. DNR Contact Information DNRlnformatiorrCenter llNR Waters weF~sitc lists Area 1 I_vdrologists: tivwiv:dnr.state.mn.us/ Twin Cities: (651) 296-6157 waters 'Minnesota toll free: 9-888-646-6367 DNR Waters in St. Paul: 500 Laf€iyette Road, St. Paul;, IviN 55155- Telecommunication device for the deaf(TDD): (651)`296-5484 4032; (6~ 1) 296-4800 TDD toll free: ]-800-657-3929 4innesotal -DNR Ecologieal'Services websiteproi•ides informa- This information is available in an alternative format on regiiest. tion abotit aquatic plant management permits: Equal opportunity to participate: in and benefit from. programs ~f the Mmte- ~~ ww.dnratate.mn.us.?ecological services rota Department of Natural Resources is available regardless of race; &~lor, DvR Ecological Services in St. Paul: `500 Lafayette national origin. sex, sexual orientation, marital status, status with regard to t Road, Box 25, St. PauI,.MN ~~I55, (6~1) 296-Z$35 public assistance. age, or disability. Discrimination inquiries sliould be sent3o y ~a,.w~?tre= t'Iinnesota DNR, 500 LafayeiteRoad. St. Paul, MN 55155-4031: or the Equal ,k;~s~;~taot:;c=s ~ ~ Opportunity Ot7ice; Department of the Interior, Wasfiington; DC 20240. Page 2 of 2 Installation of riprap is allowed only where there is a demonstrated need to stop existing erosion or to restore an eroded shoreline. An individual DNR Public Waters Work Permit is not required if the installation meets all of the following conditions: