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HomeMy WebLinkAboutPEC100034 Plar�ninc� and Env►ir+�nmen�al �omm�s�c�n . A�TIt)�1 Ft�RI+� # Departrnent of Cammur�ity develc�pment ���'�]'���� ' 75 Sa�th Frantage Road, Uail, �c�l�rado 81657 l� tet; �I7fl.479.2139 fax; 97�.479.245� a'�a��rvo€�t.��t�r<r l,,t�b: wwVSI.V�1�gOV.COtitl Project Name: Stephens Park Stream Bank PEC Number: PEC100034 Project Description: STEPHEN'S PARK STREAM BANK STABLiZATION AND RE-VEGETATION Participants: OWNER TOWN OF VAIL 07/06/2010 � C/0 FINANCE DEPT 75 S FRONTAGE RD VAIL CO 81657 APPLICANT TOWN OF VAIL 07/06/2010 Phone: 970-477-3455 KRISTEN BERTUGLIA 75 SOUTH FRONTAGE ROAD VAIL CO 81657 Project Address: 2450 S FRONTAGE RD W VAIL Location: STEPHEN'S PARK Legal Description: Lot: 13 Block: Subdivision: VAIL RIDGE Parcel Number: 2103-142-0000-3 Comments: See conditions BOARD/STAFF ACTION Motion By: Viele Action: APPROVED Second By: Pratt Vote: 6-0-0 Date of Approval: 07/26/2010 Conditions: Cond: 8 (PLAN): No changes to these plans may be made without the written consent of Town of Vail staff and/or the appropriate review committee(s). Cond: 300 (PLAN): PEC approval shall not be not become valid for 20 days following the date of approval. �` Planner: Warren Campbell PEC Fee Paid: $400.00 � �' � � � . . � ; �� � �� �� ���'����� �a �� � E� �� �' �,� � '� � i � ; � ` " , ,r.. �: F ��.„�'�r�y///� '. e . , ,Y , ,,y. :,, . . ��`,,'� � � ��r' �� � D�„�rt�nent of��mtnui�p{�'t��velo rnent�' ^� .�y3 3 4 ��#� �:� � '� f"`� "'J �Y ' ' � ��, � . � A°7� South Fro�tage y �i� �, �� �, �° �� a�� �,p� � � ��. ;,� ' �� , . r �Vail���9�ra� ,w ��� ° � ���� �;y,�. ������_ �� � � �.. g � �: § � ���,,s, �.� � ',� ; � ;,��`� +� �. � . -�'`��� ,.� � � � `"�� �w'- �y' �`����',������ e���� ���� '8��r��� ��s� �_�. . ,�. ��" � #��' e'�. �«' ,��:..� i �!��� F Flood Plain Modification � Application for Review by the JUL 06 2010 Planning and Environmental Commis i n w� General Information: A floodplain modification permit is a permit to allow construction f im�ro�i�i �t��d� - cations to the adopted floodplain. Flood Plain Modifications may be approved by the Administrator, subject to review by other Town of Vail departments. No habitable structures or improvements shall be allowed to be constructed within the floodplain. Please see Section 12-21-11-E-2, Floodplain Modification Permit, Vail Town Code for more detailed informa- tion. Vail Town Code can be found on the Town's website at www.vailgov.com. Fee: $400 Description ofthe Request: ��'e.nh�nS ��-R�K� .S�"�'�e.c.w► �n1L �fi�h,l�►�fi�iJ �v�d Ve-✓e.o�rr.��� �p�ti�eG'. T� Physical Address: ���• 11'bh�� (�. `/Q.:� , '� 8�l.�5 � Parcel Number: a� 0 31�a o00 0 3 (Contact Eagle Co. Assessor at 970-328-8640 for parcel no.) Properly Owner: �O�.cl�,� oF ✓✓���- Mailing Address: IC4UN a� VI�'I�- 1�e �►��YV�C.h� DI' (�1v►wwh���-1 l�velol�'✓1fr� �� S. � h � - V IL C.0 51 Phone: q`1�-- y`l��-3 U� .-- i- Owner's Signature: Primary Contact/ Owner Representative: 1`Y�i S'�P.N gP✓�+a �6/�ol C, �rV 1'e_ . _ _ Mailing Address: �61� 6� VI�'I� -C�rv�r��n�l�l I�f�C(�IoVI-�� �.f S, "�i�h�aC. � VAIL.C�FC1b j� Phone: ���-U11-3�-/S� /4'7 v— E-Mail: I��PV�C��•tS.G�����,o�-(�i^^ Fax: `��"✓I�IC�(i,1�G1:,�Sb�• ��1'v� For Office Use Only: Cash_ CC: Visa/ MC Last 4 CC # Auth # Check# Fee Paid: C� � �� Received From: Meeting Date: � Z�2 � C..� PEC No.: ����)�� Planner: 1.1�.-��.. Project No: -�K�a �U� �3�� Zoning: Land Use: � Location of the Proposal: Lot: Block: Subdivision: O1-Jan-10 � � t � ��UI Vt]W , THIS ITEM MAY AFFECT YOUR PROPERTY PUBLIC NOTICE NOTICE IS HEREBY GIVEN that the Planning and Environmental Commission of the Town of Vail will hold a public hearing in accordance with section 12-3-6, Vail Town Code, on July 26, 2010, at 1:00 pm in the Town of Vail Municipal Building, in consideration of: Report to the Planning and Environmental Commission of an administrative action approving a request for a minor amendment to SDD No. 6, Village Inn Plaza, pursuant to Section 12-9A-10, Amendment Procedures, Vail Town Code, to allow for modifications to the approved development plans to reduce the side setback and increase common floor area to facilitate an entry vestibule at the rear entrance, located at 16 Vail Road (Vail Plaza Hotel)/ Parts of Lots O and M, Block 5D, Vail Village Filing 1, and setting forth details in regard thereto. (PEC100032) Applicant: Ferruco Vail Ventures, represented by the Mauriello Planning group, LLC Planner: Warren Campbell A request for review of a variance, pursuant to Chapter 12-17, Variances, Vail Town Code, from Sections 12-6D-6, Setbacks, and 12-6D-9, Site Coverage, Vail Town Code, to allow for an addition of a garage within the front setback, located at 2712 Kinnikinnick Court/Lot 10, Block 2, Vail Intermountain Subdivision, and setting forth details in regard thereto. (PEC100033) Applicant: Patricia Franke, represented by Mark Donaldson Planner: Rachel Friede A request for review of a Floodplain Modification, pursuant to Chapter 14-6, Grading Standards, Vail Town Code, to allow for grading within the Gore Creek 100-year floodplain, to stabilize and re-vegetate a portion of the stream bank within Stephens Park, located at 2470 South Frontage Road West/unplatted (a complete location description is available at the Town of Vail Department of Community Development), � and setting forth details in regard thereto. (PEC100034) $� Applicant: Town of Vail, represented by Kristen Bertuglia and Gregg Barrie „f� n� Planner: Warren Campbell .��. The applications and information about the proposals are available for public inspection during office hours at the Town of Vail Community Development Department, 75 South Frontage Road. The public is invited to attend project orientation and the site visits that precede the public hearing in the Town of Vail Community Development Department. Please call 970-479-2138 for additional information. Sign language interpretation is available upon request, with 24-hour notification. Please call 970-479-2356, Telephone for the Hearing Impaired, for information. Published July 9, 2010, in the Vail Daily. �: M��� �o `: u;�� � MEMORANDUM a�� �"a'I'f �o�'c � 6- 0' � � TO: Planning and Environmental Commission � FROM: Community Development Department DATE: July 26, 2010 SUBJECT: A request for review of a Floodplain Modification, pursuant to Chapter 14-6, Grading Standards, Vail Town Code, to allow for grading within the Gore Creek � 100-year floodplain, to stabilize and re-vegetate a portion of the stream bank within Stephens Park, located at 2470 South Frontage Road West/unplatted (a complete location description is available at the Town of Vail Department of ` Community Development), and setting forth details in regard thereto. �� (PEC100034) Applicant: Town of Vail, represented by Kristen Bertuglia and Gregg Barrie Planner: Warren Campbell I. SUMMARY ��' The applicant, The Town of Vail, represented by Kristen Bertuglia and Gregg Barrie, are requesting review of a flood plain modification pursuant to Chapter 14-6, Grading Standards, Vail Town Code. The Town is requesting to perform work and construct improvement in the Gore Creek adjacent to the eastern boarder with Stephens Park. The proposed work is the result of erosion to the bank of the creek created by the numerous users of the park accessing the water in this location. The proposed improvements to the bank of the creek include grading, armoring (placement of boulders), revegetation, installation of natural stone steps, a ramp for those who cannot utilize the stairs, and improvements within the channel of the creek to redirect the forces of the water, and create better fish habitat. All of the proposed improvements result in a bank which should be able to withstand the forces of the water, allow for recreational access, and result in better fish habitat all without affecting the limits of the delineated flood plain. Based upon Staff's review of the criteria outlined in Section V of this memorandum and the evidence and testimony presented, the Community Development Department recommends approval of this application, subject to the findings noted in Section VI of this memorandum. II. DESCRIPTION OF THE REQUEST The Town of Vail adopted Environmental Sustainability Strategic Plan Goal 3 states that the Town of Vail shall "ensure that the natural environment, specifically air and water quality, water quantity, land use and habitat are maintained to current or improved levels of biological health." To that end, the purpose of the Stephens Park Stream Bank Restoration Demonstration Project is to implement stream bank stabilization and re- vegetation at the east end of Stephens Park designed to mitigate erosion, sedimentation, and degraded vegetation. Restoring this site will prevent further damage to the riparian area, improve water quality and habitat. Accessibility and recreational opportunities will be greatly enhanced. The current condition of the site has an eroding bank approximately 100 feet long that has been exacerbated by recreational use such 1 as dogs playing and whitewater/fishing access, and most recently, flooding, which has resulted in high levels of sedimentation, exposed utilities, habitat loss and reduced water quality. Improvements included within the scope of the project include re-grading the stream bank, which do not alter the flood plain, riparian improvements, re-vegetation, access improvements including rock work, pathway improvements, and a ramp for accessibility, and turf and irrigation repair. The parking and park area may need to temporarily partially closed for the construction staging area for part or all of the 30 days required to complete the project between Sept 1 and Sept 30, 2010. A vicinity map (Attachment A), the proposed plans entitled Stephen's Park Bank Stabilization dated June 29, 2010 (Attachment B), and a letter from River Restorations dated July 12, 2010, (Attachment C) are attached for reference. III. BACKGROUND � �° Stephens Park has high multiple recreation use including an off leash dog park, Frisbee golf, whitewater access, fishing, and picnic area. The Park is located on a floodplain terrace at the right of the channel. The right bank of the park has eroded approximately 100 feet in length. This erosion was likely initiated from excessive bank trampling coupled with loss of riparian vegetation at the creek access. There are few large trees and the bank does not have significant root mass on the floodplain bench in this area. Creek processes, especially during flooding in June, have exacerbated the erosion. In the spring of 2009, the Town of Vail environmental team was approached by several local anglers who were concerned with the impact of development, use, and road clearing operations on the health of Gore Creek and the ecosystem. Staff convened a small committee of concerned citizens, interviewed them, and walked the entire length of the Creek documenting risks, needs, and opportunities for improvement. With this information, staff submitted a grant to Colorado Water Conservation Board's (CWCB) Healthy Rivers Fund for $30,000 to address among other stormwater needs, for this project. The CWCB recognized the value of the stream bank stabilization opportunities at Stephens Park as well as the visibility and recognition for the Healthy Rivers Fund in Vail, and awarded the Town a $6,000 matching grant toward riparian improvements at this site. Town Public Works and Community Development have retained the services of River Restoration to conduct the site assessment and design alternatives. To date, the following tasks have been completed: • Task 1: Site Assessment and Survev were conducted on November 10, 2009, which included topographic and hydrographic survey of the channel and banks. These data were used to develop the AutoCad base map and the channel profile for the hydraulic model. • Task 2: Hvdraulic Modelinq was developed to analyze potential improvements within the floodway. • Task 3: Stakeholder Review: the Department of Wildlife conducted a site visit to confirm the appropriateness of the project for fish habitat and the dates in which the 2 project may be conducted (Sept 1-Oct 1). AXS Vail was also consulted to advise on incorporating accessibility aspects into the project. • Task 3: Final Design and Cost Estimates, have been prepared. (Attachment A) • Task 5:Armv Corps of Enqineers 33 CFR 325 qeneral permit has been submitted for approval. In addition to habitat and stream bank restoration, recreational opportunities and an enhancement of a well utilized park, this project provides an excellent opportunity for demonstration of environmental stewardship in Vail. Vail will once again be hosting the Colorado Watershed Assembly's (CWA) Annual Watershed Conference at the Vail Cascade this October. In 2009, this 3-day event brought over 500 people to Vail from atl over the country. This year, due to participant feedback and the outstanding venue, the group is returning to Vail. Last year the Town hosted an environmental education tour to the Black Gore Creek Basin of Last Resort on Hwy I-70, and a tree planting event on the Vail Golf Course. This year, event organizers have requested that an expert from the Natural Resources Conservation Service (NRCS) provide a willow planting workshop at Stephens Park and allow volunteers to help with the re-vegetation effort as a part of the demonstration project. This is a great opportunity for Vail to provide visitors an environmental education opportunity, and showcase the Town's dedication to the environment and outstanding park environment, while reducing the costs of landscaping at the site. On July 21, 2010, the Design Review Board conceptually reviewed the Stephens Park stream bank restoration proposal. They were generally supportive of the restoration proposal, however, they suggested the Town look at reducing the extent of the proposed stairs and change the concrete ramp to stone with the goal to keep the stream bank as natural in appearance as was possible while accommodating the users. IV. APPLICABLE PLANNING DOCUMENTS Tile 14, Development Standards, Vail Town Code (in part) � 14-6-6: FLOODPLA/N STANDARDS: All modifications, grading or installation of proposed improvements within the 100-year floodplain shall be in accordance with section 12-21-11 of this code. The floodplain line shall be determined by a registered professional land surveyor by plotting the appropriate elevation of the floodp/ain on a maximum one inch equals twenty feet(1"= 20') topographic two foot(2) contour map using the adopted town of Vail flood profiles (the federa/emergency management agency flood insurance study). The topographic survey shall reveal the method for determining the starting point and the starting elevation for the floodplain delineation. A site specific study performed by a professional engineer per FEMA guidelines and approved by the town of Vail and FEMA may be required. Title 12, Zoning Regulations, Vail Town Code (in part) 12-21-11: FLOOD HAZARD ZONES: A. Purpose: To promote public health, safety and general welfare and to minimize public and private losses due to flood conditions in specific areas by provisions designed to: 1. Protect human life and health; 3 2. Minimize expenditure of public money for costly flood control projects; 3. Minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the expense of the general public; �` 4. Minimize prolonged business interruptions; �: 5. Minimize dama e /" � g to pub�c facilities and util�t�es such as water and gas mams, �, electric, te/ephone and sewer lines, streets and bridges located in floodplains; � � 6. He/p maintain a stab/e tax base by providing for the sound use and development �; of flood prone areas in such a manner as to minimize future flood blight areas; �_: 7. Ensure that potential buyers are notified that property is in a flood area; � � 8. Ensure that those who occupy the floodp/ain assume the responsibility for their � actions; �' � 9. Protect the natural areas required to convey flood flows and retain flow characteristics; and � 10. Obtain and maintain the benefits to the community of participating in the national �; flood insurance program. �` 8. Basis For Establishin The Areas Of S ecial Flood Hazard: The areas of s ecial flood �' 9 p p hazard identified by the federal emergency management agency in a scientific and �` engineering report entitled, "The Flood Insurance Study For Eagle County, Colorado, � And Incorporated Areas" dated December 4, 2007, with accompanying flood insurance rate maps and flood boundary-floodway maps (FIRM and FBFM) and any revisions thereto are hereby adopted by reference and declared to be a part of this chapter. ' �: �: C. Designation Of The Floodplain Administrator. The town engineer or designee is �` hereby appointed the floodplain administrator to administer and implement the provisions of this chapter and other appropriate sections of 44 CFR (national flood insurance program regu/ations)pertaining to floodplain management. D. Duties And Responsibilities Of The Floodplain Administrator.� Duties and responsibilities of the floodplain administrator shall include, but not be limited to, the following: 1. Maintain and hold open for public inspection all records pertaining to the provisions of this chapter. 2. Review all permit applications to ensure that the requirements of this chapter have been satisfied and that the proposed improvement will be reasonably safe from flooding. 3. Review, approve or deny floodplain use and modification permits to determine whether proposed improvements meet the provisions of this chapter. �. 4. Review evidence prior to the issuance of a floodplain use permit that all necessary � permits have been obtained from those federal, state, or local government agencies �' from which prior approval is required. Conditional floodplain use permits may be issued contingent upon receipt of the above mentioned agency permits. � 4 �' � � �' � �;, 5. Review and verify that no new habitable structure is constructed within the flood hazard zone. 6. Review and verify that a licensed professional engineer or professional land surveyor certified the location of the 100-year floodplain on all development � applications that are adjacent to, or partially located within the 100-year floodplain, that are proposing improvements that may affect the floodplain. 7. Where interpretation is needed as to the exact location of the boundaries of the � areas of specia/ flood hazards (for examp/e, where there appears to be a conflict between a mapped boundary and actual field conditions) the floodplain administrator shall make the necessary interpretation. 8. Notify, in riverine situations, adjacent communities and the Colorado division of emergency management, prior to any alteration or relocation of a watercourse, and submit evidence of such notification to the federal emergency management agency. 9. Assure that the flood carrying capacity within any altered or relocated portion of any watercourse is maintained. 10. When base flood elevation data have not been provided in accordance with � subsection 8 of this section, the floodplain administrator shall obtain, review and �' reasonably utilize any base flood e/evation data and floodway data availab/e from federal, state or other source, in order to administer the provisions of subsection F of this section. 11. When a regulatory floodway has not been designated, the floodplain administrator must require that no new construction, substantial improvements, or other development (including fill) shall be permitted within zones A1-30 and AE on the community's FIRM, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one foot (1') at any point within the community. 12. Under the provisions of 44 CFR chapter 1, section 65.12, of the national flood insurance program regulations, a community may approve certain development in zones A1-30, AE, AH, on the community's F/RM which increases the water surface elevation of the base flood by more than one foot (1), provided that the community first applies for a conditional FIRM revision through FEMA (conditional letter of map �' revision). E. Floodplain Permits: � 1. Floodplain Use Permit: a. Purpose: The floodplain use permit is a permit to allow temporary grading � within the floodplain and allow for necessary public infrastructure improvements within the floodplain. A floodplain use permit may be issued under at least one of �' the following conditions: 1 Tem ora r i ��� O p ry g ad ng m the floodplam approved by the floodpla�n � administrator, in which the site is returned to its existing grade and conditions; (2) Utility construction/maintenance within the floodplain approved by the floodplain administrator which is deemed to have an insignificant impact to the 100-year floodplain; 5 � � (3) Stream bank stabilization within the floodplain approved by the floodplain � administrator and is deemed to have an insignificant impact to the floodplain; (4) Public infrastructure construction/maintenance approved by the floodp/ain administrator including, but not limited to, roads, bridges, recreation paths, walks, stream drop structures, and stream erosion control measures which are deemed to have an insignificant impact to the floodplain; b. Floodplain Use Permit Application Submittal Requirements: Applicants shall provide the following information prior to design review or any review by the planning and environmental commission: (1) Site plan at an engineering scale showing the location, dimensions, and elevations of the proposed landscape/grade alterations, existing and proposed structures, relevant landscapeftopographic features, and the location of the foregoing in relation to the 100-year floodplain. The floodplain � line shall be provided on a plan certified by a licensed professional engineer or land surveyor. (2) Detailed topographic cross sections provided by a licensed professional surveyor of the area proposed to be altered, showing existing and proposed conditions. (3) Description of the extent to which any floodplain will be altered including why, when, how, and when it will be replaced back to its original configuration, and addressing each relevant criterion in subsection E3 of this �' section. (4) Copy of all other necessary approved permits (i.e., building permit, public way permit, ACOE permit, dewatering permit, DOW permit, CDHPE permit, etc.). � (5) If required by the floodplain administrator, an engineered floodplain � analysis of the impacts to the floodplain prepared by a qualified licensed professional engineer. (6) Submitted application for a conditional FIRM and floodway revision through FEMA, if applicable. (7) Any additional information deemed necessary by the floodplain � administrator. V. REVIEW CRITERIA As discussed earlier in this memorandum the applicant initially requested review of a flood plain modification under the provisions of Chapter 14-6, Grading Standards, Vail Town Code. After submittal and notification of the request the applicant received confirmation from River Restoration in a letter dated July 12, 2010, that the "floodway � and 100 year floodplain delineation lines are not appreciably moved" as a result of the � proposed improvements. As found in Section 12-21-11(E)(1), Floodplain Permits, Vail Town Code, the administrator has the ability to administratively approve: Stream bank stabilization within the floodplain approved by the floodplain administrator and is deemed to have an insignificant impact to the floodplain. 6 � � � �. As this proposal not only includes stream bank restoration, but additional built � improvements, the applicant desired to provide a public process for the Planning and Environmental Commission and the public to provide the opportunity to comment on the project. While there are no specific criteria for review of a floodplain permit staff has include the criteria for the review of a floodplain modification request below: �' (1) The effects upon the efficiency or capacity of the floodway; � � The proposed improvements are designed to take a portion of the force of the water flow in this stretch and reduce the force of the water on the bank. The creation of the "eddy" will result in sand and sediment being deposited on the beach at the base of � � the proposed stairs. There will be no impact to the efficiency or capacity of the � floodway. � � � (2) The effects upon persons and personal property upstream, downstream and in � the immediate vicinity; The letter from River Restoration identifies that there are minimal increases in the �; backwater effect caused by the improvements, however, they backwater effect � "remains below the interpolated values" and the increase in "water surface elevation is absorbed in the steep channelized section" of Gore Creek just upstream from the site. Staff does not belive there is any negative impact to personal property in the vicinity of the proposed improvements. (3) The effects upon the 100-year flood profile and channel stability; The letter from River Restoration identifies that the "floodplain delineation lines are not appreciably moved" as a result of the proposed improvements. �;; (4) The effects upon any tributaries to the main stream, drainage ditches and any other drainage facilities or systems; � The location of the proposed stream bank restoration is not in the vicinity of any tributaries, drainage ditches, or other drainage facilities and therefore Staff does not believe there are any negative effects on these elements. (5) The danger to life and property due to flooding or erosion damage; � � The letter from River Restoration identifies that the overall elevation will be higher in this location as a result of the proposed improvements the "flood waters will remain in the Effective floodway" and "not overtop the existing river banks". Because of this finding staff does not believe there will be any danger to life and property caused by flooding or erosion damage. � (6) The susceptibility of the proposed improvement and its contents to flood damage and the effect of such damage on the individual owner; The proposed improvements have atl been designed in order to withstand the forces of the water in this section of Gore Creek. The goal is to install the materials in a manner which will withstand flood waters and the associated damage that could � occur. � (7) The danger that materials may be swept onto other lands to the injury of others; � As stated above the materials are intended to be installed to withstand the forces of �` Gore Creek and resist being swept away from the point of installation. � 7 �` � � � (8) The compatibility of the proposed use with existing and anticipated development; Stephens Park is a highly utilized park within the Town of Vail. The proposed improvements have been designed to be compatible with the desired intent the users of the park have exhibited and expressed, which is access to the Gore Creek. Staff believes the proposed improvements are compatible with the existing and anticipated development. (9) The safety of access to the property in times of flood for ordinary and emergency vehicles; The proposed improvements do not negatively affect the current level of access for emergency vehicles to the site. (10) The costs of providing governmental services during and after flood conditions including maintenance and repair of streets and bridges, and public utilities and facilities such as sewer, gas, electrical and water systems; The proposed improvements are intended to mitigate the erosion and degradation of the stream bank in this section of Gore Creek and eliminate the need for future governmental services and improvements in the future. r (11) The expected heights, velocity, duration, rate of rise and sediment transport of the floodwaters and the effects of wave action, if applicable, expected at the site; The letter from river Restoration describes the proposed improvements as having no � appreciable adverse impacts as the result of increased velocity or floodwater elevation at this site. Staff believes this application complies with this criterion. (12) The effect the proposed changes will have any adverse environmental effect on the watercourse including, without limitation, erosion of stream banks and stream side trees and vegetation and wildlife habitat; The sole purpose of the proposed improvements is to protect the stream bank and restore vegetation along this stretch while providing access to the Gore Creek for the park users. Staff believes the application complies with this criterion. (13) The necessity to the facility of a waterfront location, where applicable; The proposed improvements are located in the location depicted as users of the park gain access to the Gore Creek at that location. The provision of steps and a ramp are necessary to be located in the proposed location to provide access to the Gore Creek for the park users. (14) The availability of alternative locations, not subject to flooding or erosion damage, for the proposed use; This criterion is not applicable. (15) The relationship of the proposed use to the comprehensive plan for that area. As stated previously in this memorandum stream bank restoration is a recommendation of the adopted Environmental Sustainability Strategic Plan Goal 3. Staff betieves the proposal complies with this criterion. s � VI. STAFF RECOMMENDATION The Community Development Department recommends approval, of a Floodplain Permit, pursuant to Chapter 14-6, Grading Standards, Vail Town Code, to allow for grading within the Gore Creek 100-year floodplain, to stabilize and re-vegetate a portion of the stream bank within Stephens Park, located at 2470 South Frontage Road WesUunplatted (a complete location description is available at the Town of Vail Department of Community Development), and setting forth details in regard thereto. This recommendation is based upon the review of the criteria outlined in Section V of this memorandum and the evidence and testimony presented. Should the Planning and Environmental Commission choose to approve this Floodpalin Permit request, the Community Development Department recommends the Commission pass the following motion: �_; "The Planning and Environmental Commission approves the Floodplain Permit request �, pursuant to Chapter 14-6, Grading Standards, Vail Town Code, to allow for gradmg within the Gore Creek 100-year floodplain, to stabilize and re-vegetate a portion of the stream bank within Stephens Park, located at 2470 South Frontage Road West/unplatted (a complete location description is availab/e at the Town of Vail Department of Community Development), and setting forth details in regard thereto." Should the Planning and Environmental Commission choose to approve this Floodplain �_ Permit request, the Community Development Department recommends the Commission �` makes the following findings: � "Based upon a review of Section V of the Staff's July 26, 2010, memorandum to the �` Planning and Environmental Commission and the evidence and testimony presented, the Planning and Environmental Commission finds: (1) That the proposed use or modification adequately addresses the findings in subsection E3a of this section, as determined by the floodplain administrator, unless the applicant can demonstrate that one or more of the standards is not applicable, or that a practical solution consistent with the public interest has been achieved; (2) That the proposed use or modification is consistent with the adopted goa/s, objectives and policies outlined in the Vail comprehensive plan and compatible with �` the development objectives of the town; and (3) That the proposed use or modification is compatib/e with and suitable to adjacent uses and appropriate for the surrounding areas; and (4) That the proposed use or modification promotes the health, safety, morals, and genera/ welfare of the town and promotes the coordinated and harmonious development of the town in a manner that conserves and enhances its natural environment and its established character as a resort and residential community of the highest quality. � VI. 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C N N y � .;�' > �N N t� C N U ; ... ... ... . �� , r: '^ �L `w°'� yi°—ym , _ `Ln�3L3 � Cm°� � o. __---�— x =''` a�' _ � ° = 3 31 � „ ,� � °���m �� St � ': Y _ 3. �� d � v ; � $,°', . � F'-r`-in�n3� rn3 cii'. �—I I � J N C � � .... ... ..q ? in' A o 0 I'I �� . '3` o E � a 8' � m a � v= � � ;; NaNN -o i 'i � 'I� r �' y h � t m°> > m:= H ! ' ITi d `m m�i� f/°�i5 �, c�o o E w i I' N � � C C c� = j � �O ata m._ S.� C Orn� �N� V � m w.�3 a� � � ��_.. a �x' I c > > c �'_o____ ��—_ _�'� � �� � � ��_�� � . �.__ owwwaa ¢m mrn'� I � i i �i _.. . � �.. �'� I il � I � \�?� � ���. II ..7 i o I�I I I �_.... . . . _ ___.. . _.._ _ __ .. .._____ ____. h,, r� �IVER ��,��.� �.,,'''1' '. ' '1� � �t�t ' W?UcxJ'E_._.+�le•nerc,ol�pauF�s.C;uloradnSt��i)' i976)<3}�_9�65 JUIy 12, 2010 Mr. Tom Kassmel Town of Vail 75 S. Frontage Road, Vail, CO 81657 (970)479-2235 RE: Stephens Park Bank Stabilization, Floodplain Compliance Dear Tom, Proposed bank stabilization at Stephens Park includes in-channel modifications to hydraulics for concentrated access. This letter is to discuss how the proposed modifications comply with Town of Vail and Federal floodplain development guidelines. TOV: 12-21-10: DEVELOPMENT RESTRICTED: (E) The Administrator may require any applicant or person desiring to modify the flood plain by fill, construction, chanrrelization, grading, or other similar changes, to submit for review an environmental impact statement in accordance with Chapter 12 of this Title, to establish that the work will not adve�-sely affect adjacent properties, or increase the quantiry or velociry offlood waters. (Ord. 16(1983) � 1: Ord. 12(1978) ,¢4) Existing Conditions A floodplain model in HEGRAS format was obtained from Town of Vail. Three geometry profiles were developed; Duplicate Effective, Existing and Proposed Conditions. The Duplicate Effective is the imported geometry titled "Imported Geo0lmbjrevised"; which is the most current FEMA flood model for Gore Creek at the Stephens Park reach. The Existing Conditions model is the Duplicate Effective with the insertion of seven additional cross sections surveyed by RiverRestoration in the Fall of 2009. The Proposed Conditions model is the Existing Conditions model with cross sections modified to represent worst case scenario channel changes and analyze hydraulics of the proposed conditions. No hydrologic analysis was performed; flood flows were based on the Federal Insurance Study reported values. The 100year discharge is 2620cfs through the Project reach. This flow was likley exceeded on June 6, 2010 and water surface elevations crested 7854.5 feet elevation near river station 11+00. Additional bank erosion occurred as a result of this event. The existing FEMA model does not specifically represent flood conditions at the project area. FEMA cross sections are located 150 feet upstream or 350 feet downstream of the 1 of 3 Attachment C c�,., �; IvER ,/�=��3± �i►. g� . •� � •�� - t t J� ' Yi)13ox 0_€_3.+_�Ie�ne�cd�ps inrs t�olmad;i 5 t JZ,i 9?;t?t �i>6S proposed work. The discrepancy between the Duplicate Effective and Existing conditions model is the resolution of channel geometry of the reach. The geometry in the FEMA model is based from aerial and ground topography over long distances. The geometry in the Existing conditions model is based from site-specific channel geometry surveyed by RiverRestoration Fa112009. The Existing conditions model shows greater detail of channel geometry and a more accurate representation of flood flow conveyance. The Existing conditions base flood elevations are predicted slightly lower than effective values interpolated between River Station (RS) 1298.6 and 6431. The Proposed Conditions model increases the backwater effect over existing conditions but remains below the interpolated values of the effective model. All predicted water surface elevation changes are absorbed in the steep channelized section upstream of RS 1298.6. The Proposed Conditions do not adversely affect adjacent properties, or increase the quantity or velocity of flood waters appreciably over effective values published by FEMA. This is because of the steep banks and steep channel. Zone X, Floodplain and the Floodway are coincident here. Although Proposed base flood elevations are higher than Existing conditions, the flood waters will remain within the Effective floodway delineation and not overtop the existing river banks. The floodway and 100 year floodplain delineation lines are not appreciably moved. Table 1 compares the Effective base flood elevation with the Duplicate, Existing and Proposed condition hydraulic models. Please contact me with any questions or comments. Sincerely, tz�� � ��, Jason Carey P.E. River Engineer iason.carev(c�riverrestoration.org (970) 947-9568 cc. Gregg Barrie, Kristen Bertuglia 2 of 3 � IVER ,,r�,f-(�� �,►: ,. , .. � �1 t/� pi)[l�-x:J2€"_'3 iileuw oad�pa€�tgs.t olerad;.�fi L»U i 4'i.}9,t7_y�f S Table 1 Base Flood Elevations for Stephens Park Reach (2620cfs) 07/12/10 River Station Effecti�e Duplicate Existing Change Altemati�e 2 Chan e 2126.81 7877.7 7877.83 7877.83 7877.83 0 1832.98 7872.04 7872.04 7872.04 0 1314 7858.99 7858.99 0 1298.7 7859.1 7858.99 7858.81 -0.1 7858.8 -0.01 1251 7858.23 7856.97 -1.2 7856.98 0.01 1172.5 7856.99 7855.43 -1.5 7855.43 0 1140 7856.47 7854.64 -1.8 7854.79 0.15 1100 7855.83 7854.41 -1.4 7854.94 0.53 1043 7854.93 7853.99 -0.9 7854.13 0.14 800 7851.07 7851.21 0.1 7851.21 0 643.1 7848.58 7848.58 7848.58 0 576.1 7847.76 7847.76 7847.76 0 Stephens Park 564.2 Bridge 0 564.1 7846.86 7846.86 7846.86 0 516.5 7845.23 7845.23 7845.23 0 74.1 7840 7838.17 7838.17 7838.17 0 1 7836.14 7836.14 7836.14 0 Kinnickinnick -1 Bridge 0 -30 7835.92 7835.92 7835.92 0 -84.8 7836.35 7836.35 7836.35 0 -247.3 7834.72 7834.72 7834.72 0 INTERPOLATED VALUES 3 of 3 �� � � ' Generol Notes _ � N A LOCATIC�N MAP K z BA . : � � ° . 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W � [� D4 PLANT INSTALLATION DETAILS r ' ' ' �,, .+�''• �a� _ Stephen s Park Bank StabilizaGon; , tv�, � � � W �- Vail, Colorado ,� <�''`j W W } . /''� y ( ) _.......� ..._ ....' �_... _.._�.� . ... ._..: _. .._... _.....�. .,. ..._ . ' ___�_ .'�._. � _._...... _.__'---- �2010 flapQuest. Portions_ O � � `�✓ ... _. .... CQNTACTS VICINITY MAP � � °-' v l.Mr.Gregg Barrie Town Landscape Architect � O Town of Vail � . No. Revision/Issue Date (970)-479-2337 V�,co ' . ., s - �+ :ro'a-iy "i �. e'c �a��rn f e�a na a,. .... ... ..._... 2.Mr.Jason Cazey,P.E. � ': ` , y �"`"' �, �,� ° �'^ '�_ ' jl � . . � . River Engineer ' ; > �," s.. ^,,�—,� �,,,� , � �-����s , y.. �• . , : J .�. ! ��m�~�'���.+.rt„ l ,6�� s.N m�.-_7 c.m �L h'wo d� .��CY� .i a, a --^— . 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TIE ROPE 5/8 IN. POLYPROPYLENE ROPE s��i �Flt � � `t� �./ (�g �,p�gp� � " � - � ' "� � � O � � G'�:_ a��5 Js_��to..--, .,_� ..,..,�v.., ., _.. _;.._,:: U,L:1"0dtl6�9��0 -- — —' _ _ _ �....� � 10 INCHES * FLOATATION -,. (MIN) FOLDS FOR COMPACT STORAGE _ APPROXIMATE � , 4—INCH BY (n � 4—INCH TftENCH 1" X 2" STAKE 1 t � / DEPTH ACCORDWG BINDWG WIRE STAKED AND ENTRENCHED tO � � � TO NEED OR TWINE ATTACHING TWO SILT FENCES �-1�4 IN. CHAIN 50 LB (APPROX.) STRAW BALE FILTERED COMPACTED SOII. TO 8 OZ NON—WOVEN FILTER FABRIC � RUNOFF �( ,�( PREVENT PIPING � � � ,�� �(� _ SEDIMENT LADEN = (BLOW—UP OF SHACK�E CONNECTION) ( '( ,,,,,,,,;,,;;,': RUNOFF � n � I —II—o �--�� '\�/\� � a ��� y, t.L_ � PLACE THE END POST `�/�/��/�i�%j,� �\���/�����/ W W —��OF THE SECOND � '..� � O FENCE INSIDE THE ENO SI�TMASTER II PROPERLY INSTALLED S1RAW O PoST oF THE FIRST DREDGE BARRIER NON-WOVEN DBNW eALE (CROSS-SECi1oN) '-- � � � FENCE BY PARKERSYS7EMS OR EQUIVA�ENT ROTATE BOTH POSTS AT APPROVED FOR �,I�LEAST 180 DEGREES IN 1. EXCAVATE THE TRENCH 2. PLACE AND STAKE STRAW BALES CONSTRUCTION A CLOCKWISE DIRECTION ANGLE FIRST STAKE TO CREATE A 71GHT .�� TOWARD PREVIOUS�Y DIRECl10N OF RUNOFF WATERS SEAL WITH THE FABRIC TU R B I D I TY C U R TAI N (TYP I C A L� �/�-�'�� � � LAID BALE � I MATERIA� NTS ' " � � _� � / / WEDGE LOOSE STRAW \`�`� !BETWEEN BALES � �`'`�DRIVE BOTH POSTS �LO�„ � No. Revision/Issue Date ABOUT 10 INCHES TYPICA� LAYOUTS . � INTO THE GROUNO «m�^m ^^^�^•^ " AND eURY FLAP STREAMS, PON�S, AND LAKES (PROTECTED AND NON-TIOA�) �� �, BALES MUST BE TIGHTLY �I V E R � �✓OODEN F ANCHOR PT. STREAM FLOW ABUTTING WITH No GAPS ,��".� '� ' ' ENCE POSTS `��. ..�.....�. Po..Bbz..2123 .......... ��_..�.. � 6 �N CENTeR FILTER FABRIC � STAKE OR ANCHOR �e,� 6lenwood 5pnngs,Co b I s02 � (4 oZ. NoN-WOVEN) SHORE�INE EVERY 10' (TYPICAL) \� l i o' .�� wwv+.RwerRcstorabon.org � �FI�L AREA C'ONSTRUCTION / * THIS DISTANCE IS VARIABLE Pmjeel tleme on0 AOOrcea SHORELINE TOWN OF VAIL TOE TREN H_���� /� TRUBIDITY �"`"�"""�" � ANCHOR�T. GORE CREEK CURTAIN FLOW `"�"'- BACKFIL� TRENCH FOR ADDITIONAL STRENGTH STRAW BALE (TYPICAL� FILTER FABRIC MATERIAL CAN 5 BE ATTACHED TO A 6-INCH (MAX) NTS �� MESH WIRE SCREEN WHICH HAS r,o;�c sn�e� BEEN FASTENED TO THE POSTS STEPIIENS SI�T FENCE (TYPICAL� �07-30-2010 �— � NTS � �e�� NTS �� TURBIDITY CURTAIN (TYPICAL) 3 NTS �� Generoi Nales Notes� 1. Contrnctor Shatl Use Att Nai:ural 100% Biodegradable �Approxir�ately � Erosian Control Blankets, Type 7, Type Z, Type 3. 200 Staptes Per � 8.0' Roll. g Q. 2, Stake Blnnket In Place, Cut Hotes Through The � �ayers, Then Dig The Ptanting Holes In The SoiL Staple Drawings Not To � �� � � Around Plnnt Every 1'. Scale 2.0' 2.0' 2.0' 2.0' � 3. Erosion Controt hinterial Must Be Ptnced Loosety ❑ver 8.0' Wide Z'S (�) G�^ow�d Surface. Do Not Stretch. Blnnket Shown ' � 4. Excnvate A 6' Wide Sy 6' Deep Trench Atong The Top x X x � J � �f The Stope. The Trench Shalt Run Along The Length ❑f �•5� � � The Instaltation. Staple Btanket Atong Bottoro ❑f Trench, Fitl With Cor�pacted Soil, ❑vertap Blanket Towards Toe ❑f " " " � W Slope, And Secure With Staptes Eve�^y Z'. . / Figure E � �! �������Y�� 1����� X x X � � SHIPLAP IN ,;`;;`.`�; Figure C � ����I� D�WNSTREAM i�`."::'r.-.' � � � DIRECTIDN ,-:r:,i.:'l;",.y x ��tl� I!"'ll�� 1�1���� � � "� "' tanket 4 � ( � 1 � s`�j� lv . � �"('� O � � a • Denotes Staple locntion ° Figure D- Plan Vlew V J n/ 0C9��o �� Figure F � � 1� � - �-.---^-°--�....___.��_-, `-- WILL�W STAKES Ground Surface " "' Btanket � � � � ❑R VEG PER � � PLANS 8.0' n � O �,� , � - ,4 i�� „�` 1.0'-�-1,O�1A�1.0'-�1.0�-1.0=�-lA'-�1.0' �� F s': i a. J' �._ � � � 9 F�� ti� Figure B/ _ ... . . _ . _�.. :;:,;... > � � U , ,yz _, �:..r. - � �s ���':"-CC:," Figure E Denotes Stapte Locntion _ � ' ( .,..... � .,�, ...,,�� " � : y��3t� ��d�' +��u��'��t--.:, � �' .....� Figure E— Ptan View � � ii" �u�a3�r�tl�'��� �1����'� �� Htnnket 3 O � � ��p, a `�'��.r��!1l9o-3����i���bG���3���. �'�;,f�� �fl � n g re D _ F� U W � O I n,.:;jut�Gv � � Hla ket i = _.,s , � \� — 6.0" 6.0' � � J t(1 V ) _ /"� � � ��� F(gure E yiC � iC `C �C �C � �C � �C � W W O ��r�`�r �C��° � l�J L � ( � 1'XI'X24" HARDWO�D STAKES 12.0' 6,0" � �-- � � °s�` -"'- "-�-""— - ' "`'"��"J'��r���� \j , THR�UGH ALL LAYERS OF \✓RAP �('� n �'/� L I C16` ❑.CJ 6.0' � V ) LL. � � � firr x, V 24" WRAP WITH SOIL � � �G�t.�:��oc ::�-,,�,.� �T �_.— :-� _ — _ APPROVED FOR ❑VERLAY FILTER FAHRIC i i �15,� Figure F- Profite View Figure E FROM BAI�K STRUCTURE 1.5• CONSTRUCTION ❑ULDER WALL ❑R ❑THER RIVER BANK STRUCTURE - Critical Point . No. Revision/ISSUe Date � Hlanket 1 � F�� 3oM rd;�'N wa;�e. ............ ... ._........ _ 3.0' ?., Blnnket 3 _ Htnnket s Btanket i Terminal End Criticnl Point �y �� � - �j V E R _ ,-� � ���� . ; Gi-ound Surfnce P.O:�Boz 2123 �� ���"' """��� Ground Surface y Ground Glenwood 5pnngs,Co 81602 �S'S.S').YS.YS. Surfctce www.RiverRestoradon.org Ground Surface Pmject Nome oM Mdren Figure B- Profile View Figure C- Cross Section View Flgure G- Critical Point Securing TOWN OF VAIL GORE CREEK 1 EROSION CONTRO� B�A�IKET (ECB) INSTAL�ATION �� NTS etojG1 STEPf1ENS ��"` �07-30-2010 �—� s��, NT5 _ . _ _ _ S1N ZQ S1N �3�b�S ZQ S1N ___ OIOZ-OE-LO � 'd�l ��'d�f2��1 �NO1SaNdS G 1N�W��d�d �0?�1N0� 3ab'�l� ?��(7�(108 � Q „>�� SN�Nd�1S,,,,�, J34�f108 lt/ 1H�I�J.b'a -r-�,, —= NId2�0 3lil „-b ---- -I I 1=1 I 1— ? ---I I I.__I I I-- e —3 �_� — 7=(1�=�I 1 General Notes 200 CFS WA7ER SURFACE � NOTE:STAKES SHOULD BE PLACED RANDOMLYAT O A RATE OF 2 HOLES PER SQUARE YARD.INSTALL 3 LIVE STAKES(WHERE POSSIBLE)PER HOLE. � 2'LiF1'OF MUtCH;HOID BACK 61NCHES FROM TRUNK � STAKES TO BE PIACED INTO GROUND PERPENDICULAR TO 7HE SLOPE IN A � i.SEE SPECtFICATiONS � PREDRILI.ED PILOT HOLE 2.Q1ffINGS SHALL BE COLl.ECTID WHILE DORlMM;WHEN 1HE LEAVES HAVE FALLET7,AND NIGtiTTEMPERAIURES ARE EROSION CAN7ROL BLANI�i;X-CUf;'NCK IN SIDE OF J R1EE�NG. B�B OR CONiAtNER;SEGURE 10'STAPLE i'O.G; LtGHTLY TAMPER BACIffILL = 3.COTTONWOOD CUITINGS SHALL BE�'TO 1�°IN FOR B&B: ROPES�THE TOP OF THE 8ALL � —i I(I I I I I DIAME'IH1,AND 2'hIINIMUM IN LENGiN. SHALL BE CUT. REMOVE TOP 1/3 OF � BURLAP. REMOVE TOP 1/3 OF BASKET A E 4.CU1'fINGSHALLBETAI�i'FROM'IHEBASEOFTHES�EMS. ALLTWINE. FORCONTAINER:REMOVE ' 150 CFS WATER SURFACE ��t�)I I a1TlHE BOITOMS AT A 45 DEG.ANGLE AND THE TOPS CANTqINER AND LOOSEN ROOTS StSGHTLY � ��` ���j-,� I—II I(—I �T� BY SCRATCHING SIDES OF ROOTHALL � � = I I I—I I I 5.CllTTINGS SHN1.BE SIRIPP�OF LEADERS,AND lAN6 BEFORE PLANfiNG. ����I((��, f ..-fi` '�-. �~�-y_� 8RAN61ES TO AVOID D(�SS DRYING. CREATE SAUCER W/TOPSOIL(3"MAX.) � I I I��) —i I�T"'I�- --"-�,•- . —I I I—) � DCCEPT IN DRIP IRRIGA7ED AREAS '�—. ' I ` �� � �I—)I I FORUPT0�24H URSBffOREPLAMlN6TEt1ANDSNADE � i Y i I `�)������=(j`i � ,.� �'�;�.r—�% �! � —�—, r�- z �f-4I!I=I I!�`t�I(�I (�'`-'(I i� � � 5 CFS WATERSURFACE —I I I�) �H ��F i I ��,ii� � �I(=I I I-=I I 4=I�I=I I i=I I.I= ��'' I—I I I 7.PU1M'7HECUTTINGSWIMTHQRBASESATORNFAR - _ ��� +� �-4 PLAMING DES OFHOLE PRIORTO '� ( (\ THE 200 ff5 WAT6t ELEVATtON. ° ar. 1- � " � \,-�.J O -i I I=--I I 1=111-1 I I—i I 1—!i i� I =1 I 1=i L� � T����-� N�(����� ��1=I I i—���—���.°��� 8.I 3 G H i L Y P A I N T T H E E%P O S E D C U i S O F 1 H E C�i f O N W00 U �j'i�i��,- r�-�'!�:�=.,�• �.. .�,�-+��!�I�T� DEP'M. IFBOVESRDCCAVATION OCCURS ER �('\ �� —11�=1 ��1=-���- UNDISTURBED SUBGRADE ��� _I�I_I ��`�50/50 MD(OF LATIX PAINTAND WAT8iT0 REESfABLISH DESIRED ELEVATION W1TH � �> > �-- / !�I I�I I I- �U�WA��� ��V-DIA.MIN. 95%COMPAGTED FlLL W � �—I I(=I 45�EG.ANGLE � � � ,� 1 WI�LOW STAIQNG 2 TREE POLE PLANTING 3 SHRUB PLANTING � (L. � Q � NTS �—a �°"�� MS .,i' �('� �-- U J Q Containerized Ripairan Shrubs: � z Z � pecies ommon ame ize �������� ����� � W � — 1 Po ulus an ustifolia narrowieaf cottonwood 1 �� ������ Z � � .� 1 Salix monticola Rock Mountain willow 1 ������ ��� ����� � W W 1 Salix e eriana Ge ers willow 1 Q I— �./ � 1 Salix drummondiana Drummonds willow 1 ���`����-r-� {— (� lL LL. 1 Salix drummondiana Drummonds willow �j APPROVED FOR 1 Salix lasiandra hi lash willow � ��������°� - � --- -�-� CONS7RUCTION 1 Salix lasiandra hi lash willow 5 3 Salix exigua coyote/streambankJsandbar willow 1 qt No. Revision,�=s�e oo�e 1 Inus incana ss . tenuifolia hinleaf alder 5 - , �,m� .a�;�e,no _ 2 Ribes inermiellacustra hitestem ooseber /s in currant 1 �� .�`�� ���` `�� � � �� ` �-� 2 Lonicera involucrata inberry honeysuckle 5 '. `� e x �"'��� �`�=i IvE R 2 Rosa woodsii oods rose 1 `;�' ,� ,'',�" ` ° ' ,��� .� � �� n4 :r _r•.° _ P.O:Boz 2123 ._. , __.. '- s . � i i Glenwood Spnngs,CO 81602 �>4 { . �_ .. ,1 , �. . , � .. . . www.WverRestorat�on.org taked Ri arian Shrubs `�e ��� P�,tt"'°�°°"°"°°R„ — f�ty pecies Common Name ize ' � � � rowN oF vAi� / , `�� 60RE CREEK 5 Po ulus an ustifolia narrowleaf cottonwood cuttin >; w 5 Salix monticola Rock Mountain willow cuttin 5 Salix geyeriana Geyers willow cutting 5 Salix drummondiana Drummonds willow cuttin P"'°"STEPIIENS ="`°` 8 Salix exi ua co ote/streambank/sandbar willow cuttin °°07-30-20I O �-� s�o�� NTS