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Application APPLICANT 6/1/2020
THE SATRE GROUP Planners, Landscape Architects and Environmental Specialists 375 West 4' Avenue, Suite 201, Eugene, Oregon 97401 (541)686-4540 • w .satreproup.com TRANSMITTAL TO: City of Springfield DATE: May 5, 2020 225 5^ Street PROJECT: SUB South Hills 4' Level Reservoir Springfield, OR 97477 Hillside Overlay District Development CLIENT PROJ #: ATTN: SSG PROJ #: 1938 TRANSMITTED: Herewith X DISPOSITION: For Your Approval Separate Cover For Your Information/Use X Other For Reply TRANSMITTED: #Copies Item Dated No. Pages (In addition to this cover page) One PDF copy of a: Hillside Overlav District Develooment Aoolication Varies Several REMARKS: This Hillside Overlay District Development application packet is hereby submitted for processing. The application package includes: 1. This Transmittal 2. Application Fee (Mailed Separately) 3. Application Form 4. Written Statement 5. Deed 6. Title Report 7. Stormwater Report 8. Geotechnical Report 9. Grading Plan Report 10. Vegetation & Re -Vegetation Report 11. Grading Plan 12. Tree Felling Plan 13. Planting Plan 14. Reduced Grading Plan We look forward to your assistance with the project. Don't hesitate to contact us should you have any questions or need any additional information. Thank you. COPIES TO:Agency File e X Consultant Team X Owner X Other BY: Richard M. Satre, AICP, ASLA, CSI City of Springfield Development & Public Works 225 Fifth Street Springfield, OR 97477 Hillside Overlay District Development SPRINGFIELD `���L w "�%/ Required Project Information (Applicant., complete this section) Applicant Name: Steven Wages Phone: 541 726-2396 Company: Springfield Utility Board Fax: Address: 202 South 18th Street, Springfield, OR 97477 Applicant's Rep.: Richard M. Satre, AICP, ASLA, CSI Phone: (541) 6864540 Company: The Satre Group Fax: Address: 75 W 4th Avenue, Suite 201, Eugene, OR 97401 Property Owner: Springfield Utility Board Phone: (541) 726-2396 Company: Springfield Utility Board Fax: Address: 202 South 18th Street, Springfield, OR 97477 ASSESSOR'S MAP NO: 18-02-03-10 TAX LOT NOS : 00100 Property Address: No site addresses for the Tax Lots Size of Property: 11.02 Acres © Square Feet ❑ Zoning: Low Density Residential Existing Use: Vacant Tax Lot Description of If you are filling In this form by hand, please attach your proposal description to this appllcadon. Proposal: Construct a water storage reservoir and associated site improvements Si natures: Please sin and print your name and date in the appropriate box on the next cage. Required Property Information (City Intake Staff. complete this section) Associated Cases: Signs: Case No.: 811-20-000101-TYP2 Date: Reviewed by: 06/01/2020 Application Fee: $ Technical Fee: $72.48 Posta a Fee: 190 1449.50 TOTAL FEES: $ 1711.98 PROJECT NUMBER: 811-19-000291-PROJ Revised 10.10.13k1 1 of s Signatures The underPjnedAcVnawlgdges that the Information in this application Is correct and accurate. Date: owner, the owner hereby grants Permission for the applicant to act in Date: Signature Reylsed 10.10.13ki 2 of 5 Hillside Overlay District Development Application Process 1. Applicant Submits a Hillside Overlay District Development Application to the Development & Public Works Department The application must conform to the Hillside Overlay District Development Submittal Requirements Checklist on pages 4-5 of this application packet. Planning Division staff screen the submittal at the front counter to determine whether all required items listed in the Hillside Overlay District Development Submittal Requirements Checklist have been submitted. Applications missing required items will not be accepted for submittal 2. City Staff Conduct Detailed Completeness Check Planning Division staff conducts a detailed completeness check within 30 days of submittal. The assigned Planner notifies the applicant in writing regarding the completeness of the application. An application is not be deemed technically complete until all information necessary to evaluate the proposed development, its impacts, and its compliance with the provisions of the Springfield Development Code and other applicable codes and statutes have been provided. Incomplete applications, as well as insufficient or unclear data, will delay the application review process and may result in denial. 3. City Staff Review the Application and Issue a Decision A Type II decision, made after public notice, but without a public hearing, unless appealed, is issued within 120 days of submittal of a complete application. Mailed notice is provided to property owners and occupants within 300 feet of the property being reviewed and to any applicable neighborhood association. In addition, the applicant must post one sign, provided by the City, on the subject property. There is a 14 -day public comment period, starting on the date notice is mailed. Applications are distributed to the Development Review Committee, and their comments are incorporated into a decision that addresses all applicable approval criteria and/or development standards, as well as any written comments from those given notice. Applications may be approved, approved with conditions, or denied. The City mails the applicant and any party of standing a copy of the decision, which is effective on the day it is mailed. The decision issued is the final decision of the City but may be appealed within 15 calendar days to the Planning Commission or Hearings Official. Revised 10.10.13k1 305 Hillside Overlay District Development Submittal Requirements Checklist NOTE: If you feel an item does not apply, please state the reason why and attach the explanation to this form. ® Submitted Concurrently with Land Division applications, where applicable. Application Fee - refer to the Development Code Fee Schedule for the appropriate fee calculation formula. A copy of the fee schedule is available at the Development & Public Works Department. The applicable application, technology, and postage fees are collected at the time of complete application submittal. ® Hillside Overlay District Development Application Form ® Copy of the Deed ® Copy of a Preliminary Title Report issued within the past 30 days documenting ownership and listing all encumbrances. © Narrative explaining the proposal and any additional information that may have a bearing in determining the action to be taken, including findings demonstrating compliance with the standards of SDC 3.3-500, Hillside Development Overlay District. NOTE: Before the Director can approve a Hillside Overlay District Development request, information submitted by the applicant must adequately support the request. All of the standards for hillside development must be addressed. Incomplete applications, as well as insufficient or unclear data, will delay the application review process and may result in denial. In certain circumstances, it is advisable to hire a professional planner or land use attorney to prepare the required findings. ® Four (4) Copies of the Following: a. Geotechnical Report ® Prepared by an Oregon licensed Civil Engineer or certified Geologist Geology of the site ® Nature, distribution, and strength of existing soils ® Conclusions and recommendations for grading procedures Design criteria for corrective measures Options and recommendations to maintain soil and slope stability and minimize erosion of the site to be developed in a manner imposing the minimum variance from natural conditions b. Grading Plan Report Q Prepared by an Oregon licensed Civil Engineer ® Existing and proposed details and contours (at 5 -foot intervals) of the property ® Details of terrain and area drainage N/A ❑ Location of existing structures on the property, within 100 feet of the property, or that may be affected by the proposed grading operations, as well as approximate locations of structures on the property relative to adjacent property V1 Direction of drainage flow and approximate grade of all streets Revised 10.10.13k1 405 P1 Limiting dimensions, elevations, or finish contours to be achieved by the grading, including all cut and fill slopes, proposed drainage channels, and related construction W1 Detailed plans and locations of all surface and subsurface drainage devices, walls, dams, sediment basins, storage reservoirs, and other protective devices to be constructed with, or as a part of, the proposed work, together with a map showing drainage areas, the complete drainage network, including outfall lines and natural drainage ways that may be affected by the proposed development and the estimated run-off of the area served by the drains Schedule showing when each stage of the project will be completed, including the total area of soil surface which is to be disturbed during each stage and the estimated staring and completion dates Copy of the grading plan reduced to 8'/2"x 11", which will be mailed as part of the required neighboring property notification packet. c. Vegetation and Re -Vegetation Report W1 As specified in SDC 5.19-120 if tree felling is proposed Revised 10.10.13k1 5 01`5 May 5, 2020 SPRINGFIELD UTILITY BOARD SOUTH HILLS 4TH LEVEL RESERVOIR Hillside Development Overlay District Map 18-02-03-10, Lot 100 WRITTEN STATEMENT In accordance with Hillside Development Overlay District submittal requirements, this written statement describes the proposed development and demonstrates that the proposal complies with the criteria contained in SDC 3.3-500 through 3.3-540. The proposal is submitted concurrently with a Site Plan Review application and a Tree Felling Permit application. We request that these applications be processed concurrently. I. LAND USE REQUEST A. Development Objective The applicant's objective is to construct a newwater storage reservoir near its existing South Hills Reservoir Site to serve future single-family homes in the MountainGate subdivision and elsewhere. Subject Property RLID MAPS 2018 B. Land Use Request 1. Overall Request In accordance with the results of a Development Issues Meeting the applicant held with the City of Springfield on December 19, 2019 (See City of Springfield Jo. No. 811-19-000285- PRE), 11-19-000285PRE), accomplishing the development objective will require City of Springfield approval of three land use applications: Site Plan Review, Hillside Development Overlay District, and Tree Felling Permit. Although relating to the same project, each of these have been generated as a complete, stand-alone application including application form, city fee, written statement with findings demonstrating compliance with applicable criteria, exhibits and plans. While each of these is to receive its own decision, to ease the overall process, these three applications are being submitted for concurrent processing. It is intended that this will provide an opportunity for cross-referencing and parallel review and assist the city in rendering a decision. Additional details regarding this proposal are provided on the plans, the remainder of this written statement, and other materials are enclosed and attached herewith. 2. Hillside Development Regarding the Hillside Development Overlay District, the tax lot has portions of its topography exceeding 15% slope. As the impact area of the tax lot is confined to the limits of the proposed reservoir and the gravel access road, the portion of the development site meeting the applicability standard (slopes exceeding 15%) is as follows: M and Tax Ld Tax Lat Aa a Area Disturbed 18-02-03"00100 1 11.02 aces 1.41 aces +w PLANNERS + LANDSCAPE ARCH ITECTS + ENVIRONMENTAL SPECIALISTS 375 West 4th, Suite 201, Phone: 541.686.040 9 401 P .saue A1.888ccm wwwsa:regroup.com t I t Springfield Utility Board South Hills 0^ Level Reservoir Hillside Development Overlay District Map 18-02-03-10, Lot 100 C. Project Directory Owner/Applicant Steven Wages Springfield Utility Board 202 South 1 e Street Springfield, OR 97477 Phone: (541) 726-2396 Email: stevenw@subutil.com Planner/Lardscaoe Architect (arid Applicant's Representative) Richard M. Satre, AICP, ASLA, CSI The Satre Group 375 West 4' Avenue, Suite 201 Eugene, OR 97401 Phone: (541) 686-4540 Email: rickftsatregroup.com Sumevo Dan Nelson, PLS Branch Engineering, Inc 310 5^ Street Springfield, OR 97477 Phone: (541) 746-0637 Email: dannftbranchengineering.com Civil Engineer Tom Boland, P.E. Murraysmith, Inc. 888 S/115^ Avenue, Suite 1170 Portland, OR 97204 Phone: (503) 225-9010 Email: Tom. Boland@murraysmith.us Page 2 W 9 THE SITE AND EXISTING CONDITIONS A. Development Site The 4th Level Reservoir site is located at South 66th Place and Jessica Drive in the Thurston Hills of Springfield. Lot 100 was in the MountainGate Master Plan, however, Lot 100 was not included in prior MountainGate subdivisions. Lot 100 was in the MountainGate Master Plan a future phase. (The MountainGate Master Plan expired in 2004.) Although once planned for single family homesites, lot 100 is now owned by Springfield Utility Board and, as documented in this land use application, is now planned to be the location for a new reservoir. The reservoir site is forested and is approximately 11.02 acres in size. Access is by way of South 66th Place. Abutting the site to the north and west is unimproved land which is planned and zoned for low density residential development. Abutting the site to south and east is public land owned by Wllamalane. The Sarre Group - 375 West 0 Avenue, Suile 201, Eugene, OR W401 - (541) 6964540 - w.va.sarreereun.00m Springfield Utility Board South Hills 0^ Level Reservoir Hillside Development Overlay District Map 18-02-03-10, Lot 100 B. Planning Context 1. Planning and Zoning Local long-range land use is governed by the Eugene -Springfield Metropolitan Area General Plan (Metro Plan), often supplemented with a more specific refinement plan and/or neighborhood plan, followed by site-specific zoning. Further, zoning can sometimes be comprised of base and overlay zoning. For the reservoir site, the Metro Plan designation is Low Density Residential, there is no applicable neighborhood plan, and the base zoning is Low Density Residential. The Tax Lots to the north were included in the 1995 MountainGate Master Plan. Lot 100 was in the MountainGate Master Plan as a future phase. Page 3 of 9 r_� Springfield Zoning Map September 2018 SUB South Hills 41e Level Reservoir Site Map and Tax Let Acreage Metro Plan Desigralim Zoning 1602-03-10-00100 11.02 acres Lau Densly ResttlentialLau Densly Residential (LDR) 2. Transportation a. TransPlan. The metro area adopted transportation plan, The Eugene -Springfield Transportation System Plan (TransPlan), adopted in 2001 and amended in 2002, includes one project in the vicinity of the subject property— Project 36, a future collector connecting Straub Parkway to the west to the general vicinity of the south side of MountainGate Master Plan area. b. Springfield 2035 Transportation System Plan. The City of Springfield's Local Street Network 1 .. diagram shows proposed future streets within Springfield's jurisdiction. The plan is illustrative only and is not parcel specific. Future local streets,their locations and connection points can be adjusted at (` tim a of specific developm ent proposals. -- , Local Street Network Map Except City of Springfield _ August 2018 c. Public Transit. There is no public transit service in the vicinity of the reservoir site. 3. Utilities a. Stormwater and Wastewater. The Springfield Stormwater Facilities MasterPlan shows the property as being within the Jasper-Natron Basin. The Master Plan identifies no capital improvement projects in the vicinity of the project. The site has both stormwater and sanitary infrastructure adjacent to the property in both South 66' Place and Jessica Drive. The Satre Group - 375 West 0 Avenue, Suie 201, Eugene, OR 6/401 - (541) 6864540 - www.satreyreup.00m Springfield Utility Board South Hills 0^ Level Reservoir Hillside Development Overlay District Map 18-02-03-10, Lot 100 Existing Storm Basin Map Excerpt and Sanitary Stoimwater Facilities Master Plan Infrastructure City of Springfield City of October 2008 Springfield 2018 b. Wellhead Protection Page 4 of 9 The subject property is not within a wellhead protection area, nor are there any protection areas near the subject property. Wellhead Protection Areas Map Excerpt - City of Springfield and Springfield Utility Board January 2013 c. Water & Electric. The site has both water and electric infrastructure adjacent to the property in both South 66m Place and Jessica Drive. Existing Water Iniastruclure Existing Electric Infrastructure Springfield Utility Board, 2018 Springfield Utility Board, 2018 4. Natural Resources a. Springfield Natural Resources Study. The Springfield Natural Resource Study Report does not identify any resources on or near the site that would be impacted by the proposed development. The Satre Group - 375 Wes[ 0 Avenue, Suile 201, Eugene, OR 6/401 - (541) 6864540 - www.satregreup.com Springfield Utility Board South Hills 0" Level Reservoir Hillside Development Overlay District Map 18-02-03-10, Lot 100 Page 5 W 9 b. Springfield Wetland Inventory / Water Quality Limited Watercourses (WQ LW). Neither the National Wetlands Inventory nor the Local Wetlands Inventory document the presence of jurisdictional wetlands on or adjacent to the subject property. Springfield's Water Quality Limited Watercourses inventory also documents that there are no WQLW features on or adjacent to the subject property. c. Geotechnical Stability. A geotechnical evaluation has been performed forthe 4' Level Reservoir site. The report lists construction, site preparation, and foundation design recommendations. 5. Parks and Open Space a. Wllamalane Park and Recreation Comprehensive Plan. The Wllamalane Comprehensive Plan includes three projects within the vicinity. Project 3.8. Pursue acquisition and development of natural area parks and trail systems along the Thurston Hills ridgeline south of Potato Hill and towards the Jasper-Natron area. (Completed. See Project 4.10.) Project 3.10. Identified in the MountainGate Master Plan, develop a 90 -acre natural area park and trail system on top of Potato Hill. Project 4.10. Acquisition and development of a ridgeline trail in the south Thurston Hills area. (Property has since been acquired.) ia. rcw"14, UY �� I Park and Recreation Projects Map Excerpt Wllamalane Park and Recreation District October 2012 III. HILLSIDE DEVELOPMENT OVERLAY DISTRICT—STANDARDS, CRITERIA AND FINDINGS This section is presented in the same order of applicable requirements found in Sections 3.3-500 through 3.3-540, Hillside Development Overlay District of the Springfield Development Code. Applicable sections of the Code are in bold italics, followed by proposed findings in normal text. As noted above, all of the tax lot has portions of its area exceeding slopes of 15%. Therefore, the Hillside Development Overlay District applies. SDC 3.3-520 Development Density and Options A. For the purpose of calculating the allowed number of dwelling units in the development area below 670 feet in elevation, the "average slope" as defined below may be used., B. The developer has 2 options for the development of steeply sloped land. Option "A" is designed to correlate minimum lot/parcel sizes to the average slope of the development area. Option "B" is designed to allow for a density transfer bonus to stimulate development on those portions of the development area where the slope of the land is less than 15 percent. A combination of Options A" and "B" may be used. Response: The proposal is not a residential project and does not include dwelling units, nor does it include the creation or adjustment of any lots or parcels. The project site is comprised of one The Satre Group - 375 West 0 Avenue, Suie 201, Eugene, OR 6/401 - (541) 8864540 - w.va.salnar up.com Springfield Utility Board South Hills 41^ Level Reservoir Hillside Development Overlay District Map 18-02-03-10, Lot 100 Page 6 of 9 existing tax lot. The tax lot will remain as is. The site does not qualify for development density transfer or lot sizing modification. Therefore, this standard is not applicable. SDC 3.3-525 Street Grade Standards Response: Primary access to the site is via South 66'^ Place. A gravel access road will extend from the terminus of South 66'^ Place to the 4'^ Level Reservoir. The applicant is not proposing to modify the alignment of the adjacent public streets or to construct new public streets to serve the development site. Therefore, this standard does not apply. SDC 3.3-530 Reports Required A. Geotechnical Report. This report shall include data regarding the geology of the site, the nature, distribution, and strength of existing soils, conclusions and recommendations for grading procedures, design criteria for corrective measures, and options and recommendations to maintain soil and slope stability and minimize erosion of the site to be developed in a manner imposing the minimum variance from the natural conditions. Where geologic conditions of the site indicate that a hazard may exist, the report shall show that the proposed Subdivision or Partition shall result in lots/parcels that are suitable for development. The investigation and report shall be prepared by a civil engineer/geologist or a geotechnical engineer. Response: A Geotechnical Report has been generated for the project. The report is included in the application submittal. It was prepared by a registered professional engineer. Overall, the report lists construction, site preparation, and foundation design recommendations. B. Grading Plan Report. This plan shall include the following information: 1. Existing and proposed details and contours (5 -foot intervals) of property,, 2. Details of terrain and area drainage,, 3. Location of any existing buildings or structures on the property where the work is to be performed, the location of any existing buildings or structures on land of adjacent owners which are within 100 feet of the property or which may be affected by the proposed grading operations, and proposed or approximate locations of structures relative to adjacent topography,, 4. The direction of drainage flow and the approximate grade of all streets with the final determination to be made as specified in Subsection D., below, 5. Limiting dimensions, elevations, or finished contours to be achieved by the grading, including all cut and fill slopes, proposed drainage channels, and related construction, 6. Detailed plans and locations of all surface and subsurface drainage devices, walls, dams, sediment basins, storage reservoirs, and other protective devices to be constructed with, or as a part of, the proposed work, together with a map showing drainage areas, the complete drainage network, including outfall lines and natural drainageways which may be affected by the proposed development, and the estimated run-off of the area served by the drains; 7. A schedule showing when each phase of the project will be completed, including the total area of soil surface which is to be disturbed during each stage, and estimated starting and completion dates; the schedule shall be drawn up to limit to the shortest possible period the time that soil is exposed and unprotected. In no event shall the existing "natural' vegetative ground cover be destroyed, removed, or disturbed more than 15 days prior to grading or construction of required improvements. Within 15 days of grading or other pre -development activity that removes or significantly disturbs ground cover vegetation, exposed soil shall either be built upon (i.e., covered with gravel, a slab foundation or other construction), landscaped (Le., seeded or planted with ground cover) or otherwise protected; and The Satre Group • 375 West 4" Avenue, Suite 201, Eugene, OR 97401 • (541) 686-4540 • W ,atreproup.com Springfield Utility Board Page 7 of 9 South Hills 0Level Reservoir Hillside Developrrrers Overlay District Map 18-02-03-10, Lot 100 May 5.2020 B. The Grading Plan shall be prepared by a civil engineer. Response: A Grading Plan Report has been generated for the project. It is included in the application submittal. It was prepared by a registered professional engineer. Documentation illustrates existing and proposed contours, proposed structures, cut and fill slopes, and drainage areas and outfalls. It includes a schedule detailing major areas of the site scheduled for improvements and specifics regarding excavation, soil exposure, erosion protection, etc. A Land and Drainage Alteration Permit (LDAP) will be acquired by the applicant prior to any earthwork occurring within the project area. The LDAP will provide a mechanism for appropriate erosion and sediment control measures to be implemented on the site prior to, during, and post - construction. C. Vegetation and Re -Vegetation Report. This report shall be as specified in Section 5.19-120, if tree felling is proposed. Response: Tree Felling is proposed. A Tree Felling Permit application is one of three concurrently submitted land use applications. A Vegetation and Re -Vegetation Report has been generated for the project. It is included in the application submittal. The applicant is proposing to use a native see mix for disturbed areas, which will use drought tolerant species for stabilization of the hillside and for erosion control. D. Verification of Slope and Grade Percentages. Prior to acceptance of the Final Plat, all streets shall be cross-sectioned and their center -lines staked in the field, to determine the accuracy of preliminary slope and grade percentages. If there are significant differences between preliminary and final grade and slope determinations, i.e., density or street gradients exceed the limits specified in this Section, the Tentative Plan shall be modified to reflect the revised information and resubmitted. Response: The proposal does not include land division or street development. Thus, this standard is not applicable. E. Development Plan Report. A proposed development plan shall be submitted, depicting building envelopes for each lot/parcel, including driveway approaches and all other associated impervious surface areas. The applicant shall specify whether trees will be felled under one Tree Felling Permit, as specified in Section 5.19-100, as part of the subdivision construction process or by separate Tree Felling Permit for each individual lot/parcel prior to the issuance of a Building Permit The plan shall be based upon the findings of the required reports in this Section and the lot/parcel coverage standards of Section 3.2-215. Building envelopes shall be specified in Covenants, Conditions, and Restrictions recorded with the Subdivision Plat Response: The proposal does not include land division. Lots/parcels are not being created. The building envelope in this proposal is the 4' Level Reservoir. The only driveway approach is the new reservoir site access drive as shown on the plan set. All trees felled for the project will be under one Tree Felling Permit. With lots/parcels with more than 15 percent slope and above an elevation of 670 feet, the maximum impervious surface inclusive of structures and driveways is 35%. As this proposal's development site is 11.02 acres, the 35% percent maximum coverage is 3.86 acres, or 168,142 square feet. As shown on the plan set, total impervious area (comprised of the reservoir, one 200 sq. ft. building, and a few concrete pads) is 2,769 square feet, or 0.06 acres, well under the limit. To the degree that a Development Plan Report may apply to this proposal, it is provided with this paragraph. The Sarre Group - 375 West 0 Avenue, Suie 201, Eugene, OR W401 - (541) 6964540 - yrew.sarreemun.com Springfield Utility Board South Hills 41^ Level Reservoir Hillside Development Overlay District Map 18-02-03-10, Lot 100 Page 8 of 9 SDC 33-535 Modification of provisions The Director may modify the standards of this Code, as they apply to the entire development area, within the following prescribedlimits., A. Front, side and rear yard setbacks may be reduced to zero (when permitted by the Building Safety Codes); provided, however, where attached dwellings are proposed, there shall not be more than 5 dwelling units in anygroup. Response: The proposed project is not a residential development, and reduced setbacks are not being requested. Additionally, the applicant is not proposing to reduce right-of-way or pavement width along the property frontage on South 66th Place and Jessica Drive. Therefore, this standard does not apply. B. The reduction of public right-of-way, pavement width, and/or requirements for the installation of sidewalks as specified in Table 4.2-1, may be allowed if provisions are made to provide off-street parking in addition to that specified in Section 4.6125. The Director may require combinations of collective private driveways, shared parking areas and on street parallel parking bays where topography, special traffic, building, grading, or other circumstances necessitate additional regulation to minimize land and soil disturbance and minimize impervious surface areas. Response: The right-of-way and pavement width along South 66th Place have already been designated. Per Table 4.6-2, no parking is required for public utility facilities unless utility vehicles will be parked overnight, therefore no additional parking is required and none will be provided. Given this, this standard does notapply. SDC 33-540 Fire protection Reauirements Additional fire protection requirements may be required in hillside development areas which are considered vegetated areas subject to wildfires as determined by the Fire Marshal. A. All buildings with a gross area in excess of 1,500 square feet shall be constructed within 50 feet of an approved fire lane or public street. Fire apparatus access shall be provided to within 50 feet of the building (this may mean modifying the driveway designs for width, grade and construction material in order to meet fire lane requirements). Installation of a residential fire sprinkler system will be considered as an alternative to the requirement to be within 50 feet of a fire lane or street. Response: The subject site is on a wooded hillside and therefore is within a potential wildfire hazard area. However, the only enclosed structure is the proposed reservoir. It is a 50 -foot diameter reservoir, and the reservoir will not be combustible or continuously occupied. The gravel access road will have a width of 15 feet and will provide a safe fire/service tum around area. Thus, this standard does not apply. B. The developer shall specify in the recorded Covenants, Conditions and Restrictions that a wildfire defense plan for each lot/parcel, approved by the Fire Marshal, will be required prior to the issuance of a building permit. Response: The proposed project does not involve construction of combustible structures or any residential dwellings, so a wildfire defense plan is not warranted. An existing fire hydrant is located on the north side of Jessica near the southwest corner of Tax Lot 302. Finally, the proposed driveway for the reservoir site could be used for wildfire defense activities along the hillside, should the need arise. Given this, this standard is met. The Satre Group • 375 West 4" Avenue, Suite 201, Eugene, OR 97401 • (541) 686-4540 • W ,atreproup.com Springfield Utility Board South Hills 0^ Level Reservoir Hillside Developmrs Overlay District Map 18-02-03-10, Lot 100 Page 9 W 9 C. All buildings located in or adjacent to vegetated areas subject to wildfires shall have Class A or B roofing as specked in Bre Oregon State Struch4rel Specialty Code. Response: The site and immediate adjacent property is within a potential wildfire hazard area. The reservoir will have a Class A roof with metal rafters and a standing seam metal roof with metal fascia. Given this, this standard is met. IV. CONCLUSION The above information represents known applicable planning, zoning and site development requirements for the contemplated project. It presents known physical conditions and contexts. It captures the project's primary development objective. Based on the information and findings contained in this written statement, associated attachments and plan set, the proposed SUB South Hills 4' Level Reservoir meets the criteria of approval contained in the Springfield Development Code. Therefore, the applicant requests that the City of Springfield approve the proposal. Both the applicant and the applicant's representative are available for questions. We look forward to working with staff to ensure this project meets the goals and objectives of the applicant and the city. If you have any questions about the above application, please do not hesitate to contact Rick Satre, at The Satre Group, 541-686-4540, or rickftsatregroup.com. Sincerely, Rlchwwd,M. Sarr& Richard M. Satre, AICP, ASLA, CSI President The Satre Group The Sarre Group - 375 West 0 Avenue, Suie 201, Eugene, OR W401 - (541) 6964540 - w.va.selnavoun.00m Memorandum Date: May 4, 2020 Project: 19-2621.1200 To: Mr. Rick Satre The Satre Group From: Justin Ford, PE Murraysmith Reviewed By: Tom Boland, PE Murraysmith murraysm,7h Re: South Hills 4" Level Reservoir- Grading Plan Report Purpose BB8B8 Justin H Ford��.�yc�Ka=;�--• 00 i0ti ✓G ��r P1. Itt Q� Br�N HENO Q� RENEWS 12-31-2021 As required by the City of Springfield (City) in support of a Hillside Development land use review application, the purpose of this Grading Plan Report (report, Plan) isto summarize and document the proposed grading design for the Springfield Utility Board's (SUB) proposed South Hills 411 Level Reservoir, which forms a part of their overall South Hills Improvements plan. This report is intended to followthe format ofthe Springfield Development Code (SDC) Section 3.3-530.8, Items 1 through 8. Code Requirements and Responses 1. This Plan shall include existing and proposed details and contours (5 -foot intervals) of property. Murraysmith Response: The Preliminary Design Drawings (drawings, sheets) included in this report and Hillside Development Application for construction of a potable water reservoir and applicable facilities include the following sheets: • Sheet C-1: Existing Conditions, Survey Control, and Tree Removal Plan. This sheet shows the existing site to be developed as surveyed with 1 -foot elevation contour intervals. • Sheet C-2: Overall Site Layout Plan. This sheet shows the proposed site grading following development with 5 -foot elevation contour intervals. 19-2621 Page 1 of 5 4°" Level Reservoir May 2020 Springfield Utility Board Sheet C-3: Site and Grading Plan. This sheet shows the proposed site grading following development with 1 -foot elevation contour intervals. Sheet C-4: Access Road Grading Plan. This sheet shows the proposed access road grading following development with 1 -foot elevation contour intervals. Additionally, the drawings show details for grading of the access road and a typical detail for benched filling on slopes. 2. This Plan shall include details of terrain and area drainage. Murraysmith Response: The drawings include details of the existing and proposed site, including all applicable terrain features and area drainage. Additionally, the attached Stormwater Study for the project, which has been developed by Murraysmith for SUB's use, describes in detail the existing and proposed site drainage characteristics following all applicable requirements of Chapters 3 and 4 of the Citys Engineering Design Standards and Procedures Manual (EDSPM), as well as the Citys Stormwater Management System Scope of Work completed on February 3rd, 2020. 3. This Plan shall include the location of any existing buildings or structures on the property where the work is to be performed, the location of any existing buildings or structures on land of adjacent owners which are within 100 feet of the property or which may be affected by the proposed grading operations, and proposed or approximate locations of structures relative to adjacent topography. Murraysmith Response: There are no buildings, structures, or facilities currently located on the property, as it is completely undeveloped. The surrounding properties are shown with adjacent property lines on the drawings, but no structures are shown as the surrounding area is also undeveloped with the exception of one, lower -level potable water reservoir called the South Hills Reservoir. The drawings include all proposed structures on the site and their relation to site and adjacent topography. 4. This Plan shall include the direction of drainage flow and the approximate grade of all streets with the final determination to be made as specified in Subsection D., below. (Note: Subsection D reads as follows: "Verification of Slope and Grade Percentages. Prior to acceptance of the Final Plat, all streets shall be cross-sectioned and their center -lines staked in the field, to determine the accuracy of preliminary slope and grade percentages. If there are significant differences between preliminary and final grade and slope determinations, i.e., density orstreet gradients exceed the limits specified in this Section, the Tentative Plan shall be modified to reflect the revised information and resubmitted." 19-2621 Page 2 of 5 4`" Level Reservoir May 2020 Springfield Utility Board e�P� PU,mtp IS16l-sue amu Ie�Wm ,d ux m,phnppmwi,e. mmpim.rem Rr U—S6,d, Pb, x.wmve muh wik am 1�, ru LG,d, Murraysmith Response: The drawings and attached Stormwater Study for the project show the direction of drainage flow and the approximate grade of all streets, access roads, and surrounding areas. Access road cross sections are included on Sheet C-12, Access Road Typical Sections. 5. This Plan shall include limiting dimensions, elevations, or finished contours to be achieved by the grading, including all cut and fill slopes, proposed drainage channels, and related construction. Murraysmith Response: The drawings and attached Stormwater Study for the project show the limiting dimensions, elevations, or finished contours to be achieved by the grading, including all cut and fill slopes, proposed drainage channels, and related construction. 6. This Plan shall include detailed plans and locations of all surface and subsurface drainage devices, walls, dams, sediment basins, storage reservoirs, and other protective devices to be constructed with, or as a part of, the proposed work, together with a map showing drainage areas, the complete drainage network, including outfall lines and natural drainageways which may be affected bythe proposed development, and the estimated run-off of the area served bythe drains. Murraysmith Response: The drawings and attached Stormwater Study for the project show detailed plans and locations of all surface and subsurface drainage devices, including piping and manholes, retaining walls, ditches and check dams, sediment basins, drain outfall level spreader, and other protective devices to be constructed. The attached Stormwoter Study shows drainage areas, the complete drainage network, including outfall linesand natural drainageways which may be affected by the proposed development, and the estimated run-off of the area served by the proposed piping and drainage facilities. This Plan shall include a schedule showing when each phase of the project will be completed, including the total area of soil surface which is to be disturbed during each stage, and estimated starting and completion dates, the schedule shall be drawn up to limit to the shortest possible period the time that soil is exposed and unprotected. In no event shall the existing "natural" vegetative ground cover be destroyed, removed, or disturbed more than 15 days prior to grading or construction of required improvements. Within 15 days of grading or other pre -development activitythat removes or significantly disturbs ground cover vegetation, exposed soil shall either be built upon (i.e., covered with gravel, a slab foundation or other construction), landscaped (i.e., seeded or planted with ground cover) or otherwise protected. 19-2621 Page 3 of 5 4`" Level Reservoir May 2020 Springfield Utility Board e�P� PU,mtp IS16l-sue amu Ie�Wm ,d ux m,phnppmwi,e. m,pim.rem Rr U—S6,d, Pb, x.wmve muh wik am 1�, ru La,d, Murraysmith Response: The project will be constructed in a single phase, but will be sequenced in the following general segments (final precise sequencing to be determined by Contractor during construction): 1. Surveying and staking, installation of temporary erosion and sedimentation control (ESC) best management practices (BMPs), tree removal, and clearing/grubbing for the access road and the reservoir site. 2. Construction of access road, including excavation and grading, to allow construction vehicles to access the reservoir site, including placement of imported aggregate surfacing. 3. Grading of the site and placement of imported aggregate working surface. 4. Construction of utilities, retaining walls, Telemetry Building, reservoir, electrical and controls, and all other items shown on the plans. 5. Placement of permanent ESC BMPs. The requested schedule of ground disturbing activities is below, with segments corresponding to the segments as described above: 'The timelines represented above are approximate and the selected Contractor will determine the exact sequencing and durations of each work element. It is, however, anticipated that specifications will dictate on-site construction activities may begin in March of 2021, and be completed by May of 2022. 1 Soil disturbance areas are measured by the "clearing limits' shown on the drawings, which is also referred to as the "disturbance area limits'. These are the areas the Contractor wi II be required to stay within while performing the work. ' The Contractor will be responsible to control sediment transport during construction and restrict sediment laden waterfrom leaving the construction site. The timeframes shown above are best guesses based on previous experience with similar grading and construction activities. As required by weather, the Contractorwill determine exact timeframes that they will leave exposed soil during disturbance activities prior to placement of stabilization materials such as imported aggregate, but theywill generally be required to cover exposed soil quickly after any excavation activities are conducted. 19-2621 Page 4 of 5 4`" level Reservoir May 2020 Springfield Utility Board G��P� PU,mt\I91611-sue am �I e�W �,d ux mmphnppmwipe. mmpim.rem Rr DaSG,d a Pb, e.p"meue muh wik am 1�, ru LG,d, Short MaxlmumArea MaxlmumTlme Segment Approximate Timeline) of Soil Surface Soil will be Description Disturbed (SF)2 Unproteded3 1 ESC &Clearing March -April 2022 0 0days 2 Access Road May 2021 69,370 15 days Maximum 3 Site Grading June 2021 16,208 15 days Maximum 4 Construction July 2021 -April 2022 0 0days 5 ESC May 2022 0 0 days 'The timelines represented above are approximate and the selected Contractor will determine the exact sequencing and durations of each work element. It is, however, anticipated that specifications will dictate on-site construction activities may begin in March of 2021, and be completed by May of 2022. 1 Soil disturbance areas are measured by the "clearing limits' shown on the drawings, which is also referred to as the "disturbance area limits'. These are the areas the Contractor wi II be required to stay within while performing the work. ' The Contractor will be responsible to control sediment transport during construction and restrict sediment laden waterfrom leaving the construction site. The timeframes shown above are best guesses based on previous experience with similar grading and construction activities. As required by weather, the Contractorwill determine exact timeframes that they will leave exposed soil during disturbance activities prior to placement of stabilization materials such as imported aggregate, but theywill generally be required to cover exposed soil quickly after any excavation activities are conducted. 19-2621 Page 4 of 5 4`" level Reservoir May 2020 Springfield Utility Board G��P� PU,mt\I91611-sue am �I e�W �,d ux mmphnppmwipe. mmpim.rem Rr DaSG,d a Pb, e.p"meue muh wik am 1�, ru LG,d, The required base BMPs are shown in the ESC and Civil drawings, and will be refined/finalized by the Contractor as they apply for the ESC permitting for construction. Permitting is expected to include a Land Drainage & Alteration Permit (LDAP) for all construction activities on the project from the City of Springfield. Since Springfield is an NPDES Phase II City, and on the small municipal separate storm sewer system (MS4) list, they are the executor of construction stormwater permits within their jurisdiction for the Oregon Department of Environmental Quality (DEQ) for construction projects that disturb less than 5 acres. Therefore, a 1200C Permit from the Oregon DEQ is not required. The ESC drawings include notes for installation of sediment barriers to stabilize graded areas and other requirements. The Contractorwill be required to obtain the LDAP Permit from the City priorto beginning construction, and will be expected to set up and maintain all BMPsthroughout all construction activities. Temporary, construction -related BMPs include a gravel construction entrance to keep sediment from being transported onto the roadways at the site entrance, sediment fencing to keep sediment from migrating off-site, and inlet protection for all catch basins and other drainage structures to avoid transporting sediment laden water into piped drainage systems. Permanent ESC BMPs include imported aggregate surfacing for the reservoir site and the access road, jute matting for all native areas with a 2 horizontal to 1 vertical slope or greater, and seeding surface restoration for all disturbed areasthat are not to be covered in gravel. Strawwill be required over all native surfacing until vegetation is established following placement of seed stabilization. The access road design has been conducted to balance the cut and fill requirements as much as is feasible while maintaining the shortest route at a 15% maximum grade. Roadside ditches with check dams to slow the flow of runoff will assist with controlling the site and roadway drainage. It is not anticipated that the Contractorwill retain soil stockpiles after grading the site, asthe spoils will be hauled away and disposed of. However, plastic sheeting or other BMPswill be required to cover any stockpiles on-site. 8. The Grading Plans shall be prepared by a civil engineer. Murraysmith Response: The drawings have all been prepared by, or under the responsible charge of, a licensed professional Civil Engineer practicing under a valid registration in the State of Oregon. 19-2621 Page 5 of 5 4`" Level Reservoir May 2020 Springfield Utility Board e1aUX PU,mt\I91611-sue 4th �IRm- �,d ux m,ph npamwi,3. m,pl rem Rr U—S6,de Pb, x.wmve soon wik am -1 ��uLa,d, P R,ftma LEGEND EXIST TREE TO BE REMOVED TEST PR/BOREHOLE • NAIL PEDESTRIAN TRAIL PROPERTY LINE PEDESTRIAN TRAIL Cl0.L_H_T X /1 / zoos 1021.36 / SET / // 1 n APPROXIMATE LIMITS OF GRADING DISTURBANCE (PROPOSED /4 7 CONTOURS PLUS 10' BUFFER) � ///@/ / ////y3W3.36 / sET HUB ' Y /i/ 1111 / lo'UNDISN BUFFER / � T i2000 / loW.ro / CT0.L_H_T ROADALIGNMENT %].8] \ SET HBT- \\,\ \\IX� '\ \ I \ \\\\\\\IST SOUTH °,\\\cr3a�-1nT� \�\v� EY \�\\�103 \ \�\\�\\\$s\ t 1883 JDo\\\\ \ \\�\ rosl ".••\\\\\\\"999. s] \\ \ 103 0 CII T - 9/81H Yx PES6ss \\\\\\\\\ \ET \ L ' \ \ \ \ \\\ \ \\\ vR°veaTr \ \\\ \�\\\\\\ .CIERLH i _\��\\\\\ _ ����\ \\\\\\ \�\\�936.2s �\= \\11 KL_H_T�i 31869.99 CT0.L`H_T 107 6 201311.I..\0 i1W8.21 i / Cl0.L_H T \ CIERLHT \ 2i 1078.4tilt r�- TP - 11 // {1111 / 2016 511 3 SYt CTaL-HT ^\ \C,4r.✓ BH -1 ?17 PLAN 7 20 1.00 _ P-4 ` � J SCALE: 1"=90'-CT0.L_H T NOTICE KAGU PRELLIMINNRRY• ONLY KDo D°.ED APRIL 2828 murraysmi h MDTrosa crv[«[o MmrroYAinitN FACILITY LAYOUT POINTS NO. DESCRIPTION SHEET NOTES: FASTING 2002 CIRL_1/2IR-BE N103818.73 1. EXPLORATORY TEST PRS 1 THROUGH 5 WERE CONDUCTED IN APRIL OF 2019. BOREHOLE 1 WAS DRILLED IN AUGUST 2019. FOR MORE 2003 CHRL_H T N10372103 E23099].5] INFORMATION, SEEGEOTECHNICALINVESTIGATION AND SEISMIC \ N103747.74 E231303.23 7 HAZARD STUDY IN THE SUPPLEMENTARY INFORMATION MRTMN OF \ / \ 5w $T i THE CONTRACT DOCUMENTS, FET, DATED JANUARY 2020. \ 2008 CHRL_H T N1035,19.55 E231317.16 2009 CIRL_H T N103679.99 E231308.86 2. CONTROL OR BENCHMARK POINTS ARE SHOWN WITH A 'SET HST \ N103355.08 9 2011 CORRESPONDING NOTE INCLUDING THE POINT NUMBER, POINT N103%7.79 E231391.83 %T3 CBT �`' }` � /I _ PITON SOME OF THE ARE ALSO°INCLUDE IPOINTNESC CLUDED SURVEY CONTROL MINTTSS INES DATASHOWN TABLE \ / \\\ CTRL H T \' /I WITH CORRESPONDING POINT NUMBERS41. \�65CO CIRL_H T N1032]0.6] E231318.87 2017 CIRL_H T N103226.58 E2314gq.50 3. THE TREE SURVEY SHOWN IS ONLY PARTIALLY COMPLETE AND MOSTLY LIMITED TO THE PROPOSED ACCESS ROAD LIMITS. %].8] \ SET HBT- \\,\ \\IX� '\ \ I \ \\\\\\\IST SOUTH °,\\\cr3a�-1nT� \�\v� EY \�\\�103 \ \�\\�\\\$s\ t 1883 JDo\\\\ \ \\�\ rosl ".••\\\\\\\"999. s] \\ \ 103 0 CII T - 9/81H Yx PES6ss \\\\\\\\\ \ET \ L ' \ \ \ \ \\\ \ \\\ vR°veaTr \ \\\ \�\\\\\\ .CIERLH i _\��\\\\\ _ ����\ \\\\\\ \�\\�936.2s �\= \\11 KL_H_T�i 31869.99 CT0.L`H_T 107 6 201311.I..\0 i1W8.21 i / Cl0.L_H T \ CIERLHT \ 2i 1078.4tilt r�- TP - 11 // {1111 / 2016 511 3 SYt CTaL-HT ^\ \C,4r.✓ BH -1 ?17 PLAN 7 20 1.00 _ P-4 ` � J SCALE: 1"=90'-CT0.L_H T NOTICE KAGU PRELLIMINNRRY• ONLY KDo D°.ED APRIL 2828 murraysmi h MDTrosa crv[«[o MmrroYAinitN �1C89s0 -1 \\CTRL_HT I 111111 /// i/11 Fii sosl 100313 llze.sl T \ \\\ �.CT0.L_H T j%i 5/810. __'/"'-- = 60% -SUBMITTAL EF SOUTH HILLS EXISTING CONDITIONS, SURVEY ■ 1 4TH LEVEL CONTROL, AND C-1 i� RESERVOIR TREE REMOVAL PLAN DT x FACILITY LAYOUT POINTS NO. DESCRIPTION NORTHING FASTING 2002 CIRL_1/2IR-BE N103818.73 E231180.47 2003 CHRL_H T N10372103 E23099].5] 2004 (EIRE 1121R -BE N103747.74 E231303.23 2006 CIRL_H T N103551.07 E231100.49 2007 CIRL_H T N103651.34 E231213.50 2008 CHRL_H T N1035,19.55 E231317.16 2009 CIRL_H T N103679.99 E231308.86 2010 CIRL_H T N103355.08 E231285.83 2011 CIRL_H T N103%7.79 E231391.83 2013 CIRL_H_T N103434.09 E231621.28 2014 CTRL H T N103732.16 E231421.4q 2016 CIRL_H T N1032]0.6] E231318.87 2017 CIRL_H T N103226.58 E2314gq.50 2018 CIRL_H T N103223.62 E231530.76 2019 CIRL_H T N103230.60 E231634.W 2020 CIRL_H T N103324,21 E231710.28 2021 CT0.L_H T N103490.05 E231734,28 2022 CT0.L_H T N103675.10 E231601.24 2023 CTRL_H T N103668.59 E231807.55 2025 CTRL_1/IIR-BE N103354.99 E233056.18 2051 F_5/BI0.YPO FL5555 N103680.81 E231330.30 5051 F_5/B[0. N103222.14 E231815.30 �1C89s0 -1 \\CTRL_HT I 111111 /// i/11 Fii sosl 100313 llze.sl T \ \\\ �.CT0.L_H T j%i 5/810. __'/"'-- = 60% -SUBMITTAL EF SOUTH HILLS EXISTING CONDITIONS, SURVEY ■ 1 4TH LEVEL CONTROL, AND C-1 i� RESERVOIR TREE REMOVAL PLAN DT x 9>6 CONNECT 12- SO TO EXIST M STORMW HSEDIMENT TRAP < O FOLLOW' � � � � caxTouRs vu r MR ACCESS RD GRADING 1 1 PUN, SEE SHT C-4 I 1 LOT 6500 RA Iona d4 V \ \\\\\ / NOTES: 1, CONTOURS SHOWN ARE AT 5-1OOT INTERVALS ONLY, RECOMMENDED CONSTRUKMON SEOUENCING: <TO FOLLOW' SEISMIC—-4THLEVE�L VALVE VAULT, RESERVOIR �I 0.46 MG M-6 DIA =50' BASE EI=1115.5' _ OF EL=1148.0' ROAD AROUND TANK NO N00.TH AND SOUTH �10. UNDISTURBED __ - -- - - ° SCALED°-----�-- --- - -- ---- -- � 600/o -SUBMITTAL -_- 3 N TIO K Hary YRLIaMIFNN��ONLY APRIL 2020 m SOUTH HILLS _ 4TH LEVEL OVERALL SITE LAYOUT PLAN EF C_2 d BAB. oEHKE IIILII I l,I.7IIIi h RESERVOIR TIEN Mmrt,nmfee X of X c o .rosin j NO. DATE BY REVISION PLAN SCALE: 1,10' SEISMICYALVE KAU VADLTSEESHIM] v¢ED iTAR RNOVAL MH3 .? ✓S / NSHTC17 V 50' DIA ° EL1115.5'OF CENTER OF RES N303277.79 I I \ SW CORNER OF TELEMETRY BIDS SEES T M-10 E231414.10 O3 NE CORNER OF TELEMETRY BILL I l\ E231427.51 O4 I N103269.78 E231433.34 5 NE CORNER OF VALVE VLT ` \ _ _ _ _ _ _ _ _ _ _ _ - - _ _ - _ _ _ _ E231457.81 O] \ 110 __ _ _ --- E231%9.16 _ _ _ _ _ END RET WALL N103302.02 E231515.35 O9 BEGIN RET WALL N103236.90 ____ _ -�\ _ _ _ -____-/-- \ \ _ \ - _ i _-\ - E231516.11 11 WALL INFLECTION POINT CLfA9WG_LIMQS� - � � - \A �SLEE SHS -11 - - _ _ i- _ _ _ _ _ _ \ E231510.61 13 WALL INFLECTION POINT N103239.18 E231459.30 O9 WALL INFECTION POINT N103239.49 E231393.43 1© WALL INFECTION POINT N103239.29 E231436.03 PLAN SCALE: 1,10' SEISMICYALVE KAU VADLTSEESHIM] v¢ED iTAR RNOVAL MH3 .? ✓S / NSHTC17 V 50' DIA PLAN SCALE: 1,10' RE KAU PRELIMINARY ONLY6.09" \ 4TH LEVEL RES DESCRIPTION 0.%MG I \ \ I 50' DIA ° EL1115.5'OF CENTER OF RES N303277.79 I I \ SW CORNER OF TELEMETRY BIDS SEES T M-10 E231414.10 O3 NE CORNER OF TELEMETRY BILL I l\ E231427.51 O4 I N103269.78 E231433.34 5 NE CORNER OF VALVE VLT ` J O6 BEGIN RET WALL N103318.15 E231457.81 O] WALL INFLECTION POINT N103321.52 E231%9.16 OB END RET WALL N103302.02 E231515.35 O9 BEGIN RET WALL N103236.90 E231348.32 10 END RET WALL N103235.]] E231516.11 11 L ` UGP-I RETAINING WALL -8 'B', SEE SHE C-14 NOTES: 1. FOR RESERVOIR FLOOR PIAN AND ELEVATION SEE SHEET M-1. FACILITY LAYOUT POINTS RE KAU PRELIMINARY ONLY6.09" DESCRIPTION NORTHING EPSTING NO. ° 1 CENTER OF RES N303277.79 E2314]].60 O2 SW CORNER OF TELEMETRY BIDS N103247.% E231414.10 O3 NE CORNER OF TELEMETRY BILL N103259.20 E231427.51 O4 SW CORNER OF VALVE VLT N103269.78 E231433.34 5 NE CORNER OF VALVE VLT N103280.39 E231442.W O6 BEGIN RET WALL N103318.15 E231457.81 O] WALL INFLECTION POINT N103321.52 E231%9.16 OB END RET WALL N103302.02 E231515.35 O9 BEGIN RET WALL N103236.90 E231348.32 10 END RET WALL N103235.]] E231516.11 11 WALL INFLECTION POINT N103239.78 E231370.68 © WALL INFLECTION POINT N103238.87 E231510.61 13 WALL INFLECTION POINT N103239.18 E231459.30 O9 WALL INFECTION POINT N103239.49 E231393.43 1© WALL INFECTION POINT N103239.29 E231436.03 SITE PLAN REVIEW SUBMITTALI xona KAU PRELIMINARY ONLY6.09" Er ° wx9T�6em9mimwrnox 0 `, SOUTH HILLS BAB SITE AND GRADING PLAN APDL 2020 ,1 4 4TH LEVEL C-3 oEH� �f1 rr ■��LII I �,I.7I11%(//` �+�»-//� RESERVOIR Murrey nlM ro5e c ° -4PR % of % NO. DATE BY REVISION ///Y J//�%/%/% �� ���i !//� �y���ii��//iY/�%//��/��%/%�j%l \ �\/moi\\\\\\IIII �ql ll�l l'�I IIII/... „. _li c r/// r// rim/i r i / % //( 1 ` \ ` \ ` Il llllllll111111111111111 —A 11111 IIIIIIII Illlllll\ V A b 6 '- ///— ///c� A\\\ APPROXIMATE [[MRS OF GRAING W DIST00.6ANCEIP0.0POSED5\\\` `` \`\ \` \ \` \` \ \ \ I I I1•// \ \ \ I q HOOPS VW30\\F\0.)\\ v v vv v v v V v Av vv v AA A V va V A �r �I� I � �/ vvvvvvyAvvv vvvvv vA v vO A\vvvv Ov`vvv V`v A V AAVAvvvvV A A VA\ 1 r VAA VAAAA�v�AAAV A rte. ALV +3 AAA \ VA A \ VAA VA \ VA` ` VA V A A \ V A V A \ c a / vv vvvv ;.y � _ O V Av vv v vv vO v v vv v AvA v vv v A v v v ,v AA �V� \\\ �\\\ vv A AVA V A\V AAA AVv V A A \% V A\ V v A v v A ROAGRAVE ACCESS V AccESSEss9DAD, AAV A\ V 1 A A\ V VA `by vvv A A V AV \ vv -VA V III \ \ SEE l III VAV A\\VAVA VAA\��V VA VA\V A\� 1111111111 �1AAAAP"�VA�h�2 �� �' �� v e vLv�v`.�V` \VAVA\V AVA�A VII AV0 �A�� '� v vvvv v w vao'uxDlsua6ED V AV A\ V 1 A11 11 V I VI VAVAA Y � .�1 vvv v vv � vvv vvv A6uFrE9 —' PLAN SCA�r0' xona CUGu YR LI�MI'NNRRY� ONLY IO °oBAB SOUTH HILLS APUL2020 X11 rr �+�f1 —}/� 4TH LEVEL XFTHUSMRD�ro:m ryEHF IIILII I f�,I.7I1I%(// RESERVOIR MmrroYsmieN ....� -.n,. SHEET NOTES: ,TO FOLLOW, ACCESS ROAD ALIGNMENT AND CURVE TABLE CURVE FCLOC4TION PTLOCATION RADIUS LENGTH DELTA C1 2+42.22 2+57.91 50 15.70 17•59'14' C2 8+51.93 9+05.50 50 53.51 61.19W C3 6+49.48 7+41.42 50 91.94 105°21'26' ® 3+82.83 4+24.34 50 41.50 4J°33'34" 60% -SUBMITTAL[ I HEI ACCESS ROAD GRADING PLAN ! C-4 A Of x 11 2' 15'GMVEL] 2' \ ` 911--RACCESS ROA L', SHH STA A1i00 TO STA A6+24.5 TYPICAL SECTION - LEFT SHED A SCALE: 1 = 5 c -a EXISTGRADE FINISHED GRADE ACCESS ROAD CL , STA A6.77 TO STA A9+3] TYPICAL SECTION - RIGHT SHED c SCALE = c -a NOTES 1. STRUCTURAL FULL MATERIALS PLACED ON SLOPES STEEPER THAN SH IV SHALL PROCEED IN VERTICAL LIFTS OF V AND HORIZONTAL BENCHES OF 10 FEET WIDE EXCAVATED IMO THE FACE OF EXISTING SLOPE AT THE TOE OF THE NEW FILL SLOPE. 2. FULLSLORES SHALL BE OVERBUILT THEN CUT BACK TO FINAL GRADE. 3. SURFACE STRIPPING ARE NOT TO BE USED MR FULL 4. ON-SITE OVERBURDEN SOILS APPROVED BY THE GEOTECHNHCAL ENGINEER CAN BE USED TO CONSTRUCT FULLS OUTSIDE THE RESERVOIR FOUNDATION INFLUENCE ZONE. S. WET WEATHER FILL MATERIAL SHALL CONSIST OF IMPORTED GRANULAR MATERIAL CONSISTING OF FRAGMENTED ROCK UP TO 4' MAXIMUM SZE AND LESS THAN 5% PASSING THE NO, 200 SH VE. 6. EXISTING GROUND SHALL BE STRIPPED A MINIMUM OF 12' PRIOR TO CONSTRUCTING FULL SLOPE. STA A6+24.5 TO STA A6+]] TYPICAL SECTION - CROWN B STA A9+21.2 TO STA A30+12.05 TYPICAL SECTION - CROWN o SCAI-E I- = S.c< ROCK CHECK DAM SCALE: NTS NOTES: 1. INSTALL ROCK CHECK DAMS AT 12 -FOOT INTERVALS ALONG EACH ROADS DE DITCH. CHECK MMS TO BE CONSTRUCTED USING CLASS 50 RIPRAP 2, CHECK DAMS SHALL BE 12 INCHES IN LENGTH AS MEASURED ALONG THE PATH OF FLOW. EXTEND THE COMPLETE WIDTH OF THE MICH. TYPICAL DETAIL FOR FILLING ON SLOPES �1 SCALE: NTS SITE PLAN REVIEW SUBMITTAL TYPICAL SECTION NOTES: 1. ALLGRAVEL ROAD SECTIONS SHALLINCLIDE 12" THICK, — 3/4'-0 COMPACTED CRUSHED ROCK SURFACING, COMPACTED II u I a,I.7I ilh TO AT LEAST 95% OF MAXIMUM DENSITY PER PASHTO T W ACCESS ROAD TYPICAL SECTIONS OVER MIRAH 500X GEOTEXTI IE, OR APPROVED EQUAL. 2. ALL PREPARED SUBGRADE SHALL BE FIRM, UPHI STIRRED SHID0. SUBGRADE OBSERVED AND APPROVED BY THE GEOTECHNICAL 72' ENGINEER. IF THM MR [XIES _2 . -EXIST GRADE STA A6+24.5 TO STA A6+]] TYPICAL SECTION - CROWN B STA A9+21.2 TO STA A30+12.05 TYPICAL SECTION - CROWN o SCAI-E I- = S.c< ROCK CHECK DAM SCALE: NTS NOTES: 1. INSTALL ROCK CHECK DAMS AT 12 -FOOT INTERVALS ALONG EACH ROADS DE DITCH. CHECK MMS TO BE CONSTRUCTED USING CLASS 50 RIPRAP 2, CHECK DAMS SHALL BE 12 INCHES IN LENGTH AS MEASURED ALONG THE PATH OF FLOW. EXTEND THE COMPLETE WIDTH OF THE MICH. TYPICAL DETAIL FOR FILLING ON SLOPES �1 SCALE: NTS SITE PLAN REVIEW SUBMITTAL Nona — PRELLINI'NNMYYOrNLY APPIL 2020 0 MNmrt,nmlee II u I a,I.7I ilh SOUTH HILLS = 4TH LEVEL RESERVOIR ACCESS ROAD TYPICAL SECTIONS EF C-12 X °F X ° BAB E° IF THM MR [XIES oEHF c o .rosm NO. DATE BY REVISION May 5, 2020 SPRINGFIELD UTILITY BOARD SOUTH HILLS 4T" LEVEL RESERVOIR Map 1&-02-03-10, Lot 100 Vegetation and Re -Vegetation Report This report is presented as a supplement to a Tree Felling Permit application and Hillside Overlay District Development application. Those two applications, along with a Site Plan Review application, are being submitted for concurrent review and processing in support of the proposed reservoir project. Please refer to those applications, along with theirwritten statements, attachments and plan sets to gather a complete understanding of the proposal. Vegetation The overall reservoir site occupies one tax parcel. The proposed reservoir site is located on tax lot 100. A 15' wide gravel access road will be installed from South 661E Place, southward into Tax Lot 100. The road will continue to the reservoir site area and provide a safe turn around area. In terms of existing vegetation, the site is consistently covered in a mixture of deciduous and evergreen (primarily Douglas Fir) trees. Reservoir Site Existing Conditions Google Earth 2018 Re -Vegetation A tree survey has been conducted. This inventory can be found in the Existing Conditions, Survey Control, and Tree Removal Plan. Only those trees necessary to construct the improvements and to ensure safe and efficient operation of proposed facilities will be removed. As noted in the Tree Felling Permit Written Statement, there are hundreds of existing trees on the subject tax lot. 9.61 acres of the site, (87%)will not be disturbed. Of the 1.41 acres cf the3 site which will be disturbed, 273 trees were surveyed. Of those, 237 trees will be removed. Any areas of disturbance that are not covered by new structures or other surfaces will be seeded with a mix of relatively low growing, drought tolerant grasses and forbs—to minimize erosion, minimize stormwater runoff, provide an environment to foster restoration of the forest floor and improve the appearance and natural function of the site. See Planting Plan. 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