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HomeMy WebLinkAboutFile Documents.211 Cottonwood Ln.0062.2019 (13).ARBK Private Residence 211 Cottonwood Lane Construction Management Plan April 17, 2019 P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 2 - TABLE OF CONTENTS 2.0 Project Introduction 2.1 Project Description 2.2 Project Disturbance Area 2.3 Project Vicinity Map 3.0 Project Documentation 3.1 Permitting 3.2 Public Notification 3.3 Project Sign 3.4 Contact List 4.0 Project Implementation 4.1 Dates of Construction 4.2 Hours of Construction 4.3 Construction Schedule 4.5 Project Fencing 4.6 Tree Protection 4.7 Parks 5.0 Project Management 5.1 Parking Management 5.2 Emergency Access and Ordinance 35 5.4 Staging Areas 6.0 Traffic Control 6.2 Haul Routes 6.3 Weight and Size Limitations of Vehicles 6.4 Delivery Requirements 6.5 Traffic Control Plan 8.0 Sediment and Erosion Control 8.1 Storm Water Pollution Prevention Plan 8.2 BMPs for Stormwater Pollution Prevention 8.3 Final Stabilization and Long-Term Stormwater Quality 8.4 Inspection and Maintenance Procedures 9.0 Fugitive Dust Control 9.1 Dust Control Plan 10.0 Emissions 10.1 Maintenance 10.2 Opacity 11.0 Noise Suppression 11.0 General 11.1 Noise Suppression Plan 11.2 Equipment and Method P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 3 - APPENDICES A – Required Project Sign B – Parking Management Form C – Haul Route Map D – Noise Suppression Plan, Techniques and Equipment E – Construction Schedule F – CMP Site Plan G – Ordinance No. 35 H – Engine Idling P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 4 - 2.0 PROJECT INTRODUCTION 2.1 Project Description Demolition of an existing trailer and additions, construction of a new 1,996sf single family residence on a 2,567sf lot located at 211 Cottonwood Lane. The residence will have a basement and one story above grade. The project also includes various site improvements including grading, drainage, walkways, patios and landscaping. 2.2 Project Disturbance Area The area of disturbance is the same as the size of the lot, roughly 2,567sf. Plus, re paving of the parking easement immediately adjacent to the lot on Cottonwood Lane. 2.3 Project Vicinity Map See attached Appendix C – Project Vicinity and Haul Route Map 3.0 PROJECT DOCUMENTATION 3.1 Permitting This CMP is being submitted as part of the application for a building permit. 3.2 Public Notification Public notification will take place a minimum of 10 days prior to commencement of work and will be distributed directly to neighbors within a 300 foot radius of the project. It will include an invitation to a pre-construction meeting, a proposed schedule and description of impacts to the neighborhood. A preconstruction meeting summarizing this CMP will be held five days after the aforementioned public notification (five days prior to breaking ground). Work on the infrastructure is tentatively scheduled to begin 04/29/2019. The pre- construction meeting is therefore tentatively scheduled for 04/22/2019 at 10:00am. Or a date to be determined by issuance of the building permit. Sam Barney, Project Owner, will act as the project representative and will notify all parties listed above. 3.3 Project Sign 211 Cottonwood Lane - Project Sign – APPENDIX A 3.4 Contact List Owner: Desiree H & Samuel T Barney – 970.309.1835/6 Contractor: Owner / Builder – 970.309.1836 Site Supervisor: Sam Barney - 970.309.1836 Safety Officer: Sam Barney - 970.309.1836 P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 5 - Traffic Control Officer: Sam Barney - 970.309.1836 Erosion Control Representative: Sam Barney - 970.309.1836 Architect of Record: Draftsman & Structural Engineer – Paul Irwin – 719.221.3232 City of Aspen Community Development – 970.920.5090 Pitkin County – 970.920.5200 Aspen Police Department – 970.920.5400 Aspen Fire Protection District – 970.925.2690 RFTA – 970.925.8484 School District – 970.925.3760 Water Department – 970.920.5110 Aspen Consolidated Waste – 970.925.3601 Holy Cross Energy: 970.945.5491 Black Hills Energy: 888.890.5554 Aspen Valley Hospital – 970.925.1120 Emergency Services - 911 4.0 PROJECT IMPLEMENTATION 4.1 Dates of Construction The current project start is scheduled for 04/29/2019. The estimated project duration is (6) months putting the maximum anticipated projected completion date at around 10/31/2018. Start date is dependent on permitting review timeframe of approximately four to five months. Any work within the City of Aspen Right of Way will not commence prior to obtaining the appropriate permits from the City of Aspen Engineering Department. 4.2 Hours of Construction Construction hours will be limited to 7:30am – 5:30pm Monday through Friday and 9:00am- 5:00pm on Saturday. Additional prohibited construction days are as follows: · Sundays · 4th of July (Day and any associated weekend) · Memorial Day Weekend · Labor Day Weekend · Thanksgiving Day · Christmas Day · New Year’s Day 4.3 Construction Schedule Please see attached – Appendix E 4.5 Project Fencing The perimeter of the lot will be fenced with a temporary six foot tall chain link fence with green mesh wind screen as indicated on the attached CMP site plan. P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 6 - 4.6 Tree Protection The CMP Site Plan – Appendix F, shows the existing trees that are to be preserved and where tree protection fencing will be installed. The fencing will be installed outside the drip line of the trees and will be constructed of metal tee posts and orange plastic safety fence. 4.7 Parks A tree removal permit is being submitted as part of the building permit submittal. Landscaping plans for the property have been prepared which will also be submitted as part of the building permit submittal. 5.0 PROJECT MANAGEMENT 5.1 Parking Management Parking will be provided within Smuggler Park. A combination of rented guest parking spaces and use of the parking easement associated with 211 Cottonwood Lane will be used. See Appendix B. 5.2 Emergency Access and Ordinance 35 Contractor will maintain continuous emergency vehicle access to the site, including but not limited to police, fire, and ambulance services. See Ordinance 35 – APPENDIX G 5.4 Staging Areas All material handling and equipment staging will be accommodated on site. Under no circumstances will job materials be stored in the private street, ROW, unless rented from the City of Aspen for staging. Contractor will keep trash containers and portable restrooms within the limits of the project’s property. Shall any use of the ROW be required for trash dumpsters, office trailer, etc., Contractor will obtain the proper permits prior. Any compost or food disposal containers shall be bear proof. 6.0 TRAFFIC CONTROL 6.2 Haul Routes See Haul Route Map – APPENDIX C 6.3 Weight and Size Limitations of Vehicles · Dump Trucks – 54,000 GVW · Excavator – 54,000 GVW · Boom Truck – 45,000 GVW 6.4 Construction Vehicle Activity P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 7 - There will be approximately 121 truck trips required. This will equate to approximately one- and one-half truck trip per day over the 6-month duration of the project. The expected numbers of truck trips are as follows: 3 Loads of Demolition Debris 1 Load of Fencing and Tree Protection Materials 1 Loads of Pipe and Manholes for Drainage and Infrastructure 2 Construction Mobilization and Demobilization Trips. 1 Load of Drilling Equipment for Excavation Shoring 2 Excavation Equipment Mobilization 54 Dump Truck Loads of Excavated Soils Leaving Site 7 Dump Truck Loads of Backfill and Gravel Delivered to Site 5 Loads of Premixed Concrete 2 Concrete Pump Truck Trips 2 Loads of Stone Paving Materials 5 Loads of Framing and Exterior Trim Materials 2 Loads of Cabinets and Interior Trim Materials 1 Trips by Foam Insulation Truck 1 Load of Roofing Materials 1 Load of Windows and Exterior Doors 2 Loads of Drywall 1 Load of Appliances 1 Load of Heating and Air Conditioning Equipment 1 Load of Light Fixtures 1 Loads of Plant Materials 1 Loads of Other Landscaping Materials 12 Trash Truck Trips 12 Temporary Toilet Cleaning Trips Pickup and deliveries times will be coordinated so that only one large truck will be on site at any given time. Delivery vehicles and all other on-site vehicles will not be allowed to idle for more than five (5) minutes, with the exception of generators or PTO type operations. Project subcontractor and suppliers will be provided with written notification of Aspen’s vehicle idling regulations. See Section 13.08.110 Engine Idling – APPENDIX J. 6.5 Traffic Control Plan Contractor does not anticipate that there will be any need to interfere with traffic on any public right-of-way. If some unforeseen need arises, a Traffic Control Plan (TCP) will be prepared by a State Certified Traffic Control Supervisor. The plan will conform to the most current edition of the Manual of Uniform Traffic Control Devices for Streets and Highways (MUTCD) and be submitted to the City of Aspen Department of Engineering for approval/permitting. 8.0 SEDIMENT AND EROSION CONTROL 8.1 Storm Water Pollution Prevention Plan P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 8 - All necessary Best Management Practices (BMP’s) will be in place and maintained in order to minimize dirt entering the streets. Primary strategies are as follows: · Smuggler Superfund Performance Standards and Site Maintenance to be followed, including: o Excavation and construction. Any disturbed soil or other material that is, or may be contaminated, and that is to be stored above ground shall be securely contained on and covered with a durable non-permeable tarp or other protective barrier approved by Aspen EHD so as to prevent the leaching of contaminated material onto or into the surface soil. Sufficient measures must be taken to prevent soil from being tracked off-site. o Removal of contaminated material. No contaminated soil or other contaminated material shall be removed, placed, stored, transported or disposed of outside the boundaries of the Site without having first obtained any and all necessary state and/or federal transportation and disposal permits. Contaminated soil or other contaminated material need not be taken to the Landfill if Aspen EHD finds that there exists a satisfactory method of disposal at the excavation site, or if the material is being taken to another duly licensed and authorized receiving facility. The City and County may require soil testing to determine lead content of any soil or other material on the Site. o Dust suppression. All development and other activities shall be accompanied by dust suppression measures to minimize the creation and release of dust and other particulates into the air. o Vegetable and flower gardening or cultivation. No vegetables or flowers shall be planted or cultivated within the boundaries of the Site except in garden beds consisting of not less than 12” of uncontaminated soil. o Surface coverage. All areas of the Site must be maintained with a permanent vegetative or hard surface cover. Except as allowed pursuant to a duly obtained permit, no person may alter any part of a permanent vegetative or hard surface cover absent prior notice to the Aspen EHD. To obtain a “clean letter,” a minimum of 12” of uncontaminated soil must be placed over contaminated soil or other contaminated material, and the area revegetated after a construction or landscaping project has taken place. It is also acceptable to cover contaminated soil or other contaminated material with 12” of gravel, or pave it with concrete or asphalt. o No erosion. All areas within the Site must be maintained in a manner to minimize erosion, including adequate provision for drainage and surface water run-off so as to prevent the formation of standing pools, ditches or gullies. o Work to be performed in accordance with Smuggler Superfund Site Soil Removal Permit. · Avoid unnecessary site disturbance. · Maintain grading; install silt fences and sediment traps prior to any soil disturbance. · The installation of a tracking pad will be impractical due to the limited space available. Contractor will make sure that the short ramp into the excavation is kept as mud free as possible by use of screened rock over geo-textile fabric and not using the ramp in wet conditions. · The washout of concrete chutes will have to be done back into the concrete trucks due to the lack of space on site. Contractor will do everything they can to make sure that the concrete trucks do not wash out illegally offsite. P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 9 - · Hard plastic kiddie pools or concrete dumpsters will be used to protect the ground below the concrete pump transfer points. Spills captured will be allowed to dry and will be placed in the site trash receptacle. · Pathways around the house will be stabilized primarily through the use of screened rock over geo-textile fabric. 8.2 BMPs for Stormwater Pollution Prevention Best Management Practices (BMPs) will be employed for stormwater management as indicated in the following sections. The construction sequence as indicated in 4.3 above will help minimize the total area of disturbance at any particular point in time. a) Structural Practices: a. Silt fences will be installed on the downhill sides of all areas of disturbance as shown on the civil engineers drainage and erosion control plans. b. Temporary diversion ditches and swales will direct runoff from other site areas through straw wattle and hay bale filtration prior to discharge off the site. The exact location and alignment of these structures will be determined in the field based on project phasing and the space needed for construction staging. c. Fugitive dust control will be achieved using a hose and spray nozzle. d. Surface roughening will be conducted in newly excavated areas to provide temporary stabilization when other temporary stabilization measures are not feasible (such as gravel or temporary vegetation) or will not be provided immediately. e. If for any reason construction is delayed for a period of time exceeding 30 days, more permanent stabilization will be put into place including backfilling open excavations and reestablishing vegetation with seed and mulch. b) Non-Structural Practices: Pollution prevention will be stressed among all employees and sub-contractors, including adequate training of personnel and frequent monitoring of activities. a. Proper facilities and procedures will be used for on-site waste storage and disposal. Daily inspection and maintenance of waste disposal areas will be conducted. Where possible, waste containers will be covered, and waste storage areas will be fenced. b. The contractor will ensure that good housekeeping will be employed during construction, with all work, materials storage and waste storage areas kept in a neat and orderly condition. c. Existing trees and mature vegetation that are not to be removed will be protected during construction to limit unnecessary disturbance of site soils and maintain natural erosion control. c) Materials Handling: a. All potentially hazardous materials will be stored off site. In the event that any such materials are stored on site, toxic materials and petroleum products will be enclosed and contained in an impervious elevated basin sized large enough to hold the volume of the hazardous materials being contained. b. Any spill or discharge or construction related materials will be cleaned up immediately and disposed of accordingly. c. Any spill not properly contained and cleaned-up will be reported to the proper authorities. P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 10 - i. Aspen Fire Department, Fire Marshal: 925-2690 ii. Colorado Department of Public Health and Environment, Emergency Response: 303-756-4455. iii. City of Aspen Engineering Department: 920-5080 iv. City of Aspen Environmental Health Department: 920-5039. v. National Response Center: 800-424-8802 8.3 Final Stabilization and Long-Term Stormwater Quality All temporary BMPs will remain in place until construction is complete and revegetation has been verified to have taken hold. Final stabilization and long term stormwater quality are addressed by the civil and landscape drawings submitted as part of the building permit submittal package. 8.4 Inspection and Maintenance Procedures a) A thorough inspection of the stormwater management system will be performed at least every 14 days, and after any precipitation event that causes run off. The inspection will include the observation of the construction site perimeter and discharge points, all disturbed areas, and material storage areas exposed to precipitation. All erosion and sediment control measures will be inspected for integrity and functionality (e.g., sediment fences, hay bales, straw wattles, temporary swales and ditches). b) Damaged or ineffective BMPs will be fixed and/or replaced. Removed sediment will be placed where it will not become an additional pollution source. c) When necessary, BMPs will be added, removed or replaced with more effective measures. All such actions will be documented and the SWMP will be updated to reflect those changes. 9.0 FUGITIVE DUST CONTROL 9.1 Dust Control Plan The project’s Dust Prevention and Control Plan are as follows: · Avoid unnecessary site disturbance. · During construction a hose and spray nozzle will be used on exposed soils as necessary to mitigate air born dust. · Exported soils and other debris will be hauled off via covered dump trucks. All areas directly surrounding the site will be maintained daily with thorough cleanings taking place every Friday afternoon. · 24 Hour Contact: Owner/Builder Construction Office – 970.309-1836 10.0 EMISSIONS 10.1 Maintenance All vehicles and equipment used on site will be properly maintained such that the engines P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 11 - will function within the manufacture’s standards or parameters. 10.2 Opacity Emissions from diesel engines operated within the City of Aspen shall be of a shade or density no darker than 40% opacity, except for starting motion no longer than 10 seconds or for stationary operation not exceeding 10 seconds. 11.0 NOISE SUPPRESSION 11.0 General The allowable noise limit at this location is 70db during the summer season (June 1 – Labor Day). The noise limit at all other times is 80db. All activities generating noise in excess of the aforementioned limits will require a noise suppression plan and be restricted to operating between 9:00am – 5:00pm Monday through Friday. All construction equipment shall be adequately muffled and maintained to minimize project noise. The installation of noise barriers is the minimum technique to suppress noise, especially when jack hammering of concrete occurs. 11.1 Noise Suppression Plan All activity that generates noise in excess of the aforementioned limits will requires a noise suppression plan and is restricted to operating between the hours of 9am and 5pm Monday through Friday. This project will require soil stabilization. The Noise Suppression Plan will include a noise impact modeling report and noise impact mitigation plan as described below. SITE SPECIFIC NOISE IMPACT MODELING – UNMITIGATED REPORT Using the measured sound levels as bases, a computed noise impact model will be developed. The noise impact modeling will be completed using Sound Plan or software, which meets ISO 9613.1/2 compliance requirements. The site specific operational noise impact will be modeled taking into account the site's topography, groundcover, structures, etc. The modeling results will include ‘noise maps’, indicating the areas operational noise level impact at the compliance locations. GENERIC NOISE IMPACT MODEL MITIGATION PLAN A sound control system to reduce the anticipated sound levels at the compliance points will be utilized to mitigate noise. These options may include sound walls, acoustical blankets, etc. See Signed Noise Suppression Plan – APPENDIX D See Soil Stabilization Plan – APPENDIX F.1 11.2 Equipment and Methods In addition to the standard practices agreed to within the signed Noise Suppression Plan, the table below from the City of Aspen’s complete packet has been included for quick contractor/subcontractor reference. P 970.309.1836 211 Cottonwood Ln Aspen, CO 81611 - 12 - Noise Controls for Construction Equipment (Schneider et al., 1995) Equipment Noise Controls Pile Driver Enclosure, muffler Stone saw cutting Noise control pad with water Handheld impact drills Reduction of reflected sound Circular saw blades 15º tooth angle, new tooth configuration, slotted saw blades, viscoelastic damping Pneumatic tools Muffler Pavement breaker/ Rock drill Muffler, enclosure of cylinder case and front head, moil damping Portable air compressor Muffler, acoustic enclosures Bulldozer Bulldozer Cab-liner material, enclosure, sound absorption in canopy, sealing of all openings Wheeled loader Absorption of sound cooling air route Appendix A 211 Cottonwood Lane PERMIT #(TBD).2019.XXXX GENERAL CONTRACTOR: OWNER / BUILDER - SAM BARNEY CONTACT: SAM BARNEY (970) 309-1836 24 HOUR EMERGENCY CONTACT #: (970) 309-1836 G:\city\building_dept\Aspen 2004 Checklists\Aspen Parking, Construction Staging and Emergency Access Plan.doc CITY OF ASPEN CONSTRUCTION STAGING AREA, PARKING AND EMERGENCY VEHICLE ACCESS MANAGEMENT PLAN The City of Aspen requires submission of a job site plan describing the construction staging area(s), location and number of construction-related vehicles, and ensuring proper emergency vehicle access. The construction project shall be issued street parking permits for the expected duration of the project for a fee. These plans are required for all residential construction or remodeling of 1,500 square feet, or more, for any construction or remodeling involving multi-family buildings (three or more units), or for any construction or remodeling involving commercial buildings. (Aspen Municipal Code Section 24.16.240) Provide one copy of a job site plan showing the following information: 1. Location for all job site related vehicles, including number and location of requested street parking spaces and/or vehicle permits. 2. Location for materials storage, construction equipment and any other staging issues. 3. Emergency access route allowing emergency vehicle access to the structure(s). ATTENTION: Construction related vehicles are excluded from the signed 2-hour Free Parking areas in Aspen’s residential zones. Construction vehicles will only be considered in compliance if parked in the designated construction area or displaying a valid street permit. All other vehicles will be considered in violation. Please call 920-7482 with questions regarding this from Construction Site Address: ___________________________ Contact Name: _ ___________________Date: _ ______ Contractor: ____________________________ Phone Number: ______ ___ FOR OFFICE USE ONLY Vehicle Permits_________ x Rate _______ x Days ____ = Fee ________ Exp. Date______________ Street Parking Spaces ________x Rate ______ x Days ___ = Fee ________ Exp. Date____________ Approved _______________________________________________ Date____________________ REQUESTED: Vehicle Permits: ________________ Street Parking Spaces: _____ _______ Other parking areas: _ ________________ Begin Date: __ __________ Completion Date: ___ _______ All construction staging and construction parking shall be confined to the areas defined in an approved plan for the job site. Workers shall be encouraged to carpool. Emergency access, as described in the approved plan for the job site, shall at no time be blocked. A stop work order may be issued upon non- compliance. (970) Appendix B Construction Parking Permit 211 Cottonwood Lane Sam Barney 12/17/2018 309-1836 TBD TBD Owner - Builder Smuggler Park guest parking and property's parking easement. 0 0 Map data ©2018 Google 1000 ft Appendix C Project Vicinity & Haul Route Map City of Aspen Construction Noise Suppression Plan As the General Contractor for this construction project, I ___________________ hereby agree to the following restrictions and will provide the necessary noise suppression (outlined below), such that it will lesson the impact to the properties within 300 feet of the project located at ________________________________. I understand that if any construction activities exceed 80 decibels and are not covered by this document I will contact the City of Aspen Environmental Health Department to design a specific noise suppression plan for those activities. _______________________________ _____________________________ Signature Print name On-site Contact Phone # ___________________ Many activities on construction sites are noisy. Although some noise may be unavoidable, it can often be controlled using improved work practices. Builders should make all reasonable efforts to minimize noise. Noise Suppression plans are required for all construction projects where activities will generate noise that exceeds 80 decibels. Section 18.04.050(A)(2)(d) Hours of operation All construction activity is limited to the following days and times: Monday thru Friday Saturday Sunday 7:30 am to 5:30 pm 9:00 am to 5:00 pm No construction work is allowed Constructions activities producing noise greater than 80 decibels are limited to the following days and times: Monday thru Friday 9:00 am to 5:00 pm Work that is over 80 decibels which by law requires a noise suppression plan will not be allowed for Saturday work that includes but not limited to the use of compressors, generators, jackhammers, power equipment, nail guns, drilling machinery, earth moving equipment and similar loud construction activities. This does not restrict quiet work inside and outside that does not require a power source, including a battery, on Saturday. Construction activity is not allowed during all federal holidays. Due to the congestion in Aspen when town is completely full, noise suppression plans will not be approved for the following dates: Christmas Week (December 25 through Jan. 1), Food and Wine Week in June (Friday thru Sunday), 4th of July day and/or weekend if it falls on a Friday or Monday, and Labor Day weekend. Revised 1/08/2013 Sam Barney 211 Cottonwood Lane Samuel T Barney (970) 309-1836 Appendix E Specific noise suppression requirements for all activities exceeding 80 decibels at a construction site include: 1. Notify neighbors within two hundred fifty (300) feet of the project informing them of the kinds of equipment, expected noise levels and durations of loud work. Including the variation of noise levels during a typical construction days may be helpful. Such notification must be in writing and be done seven (7) days prior to the starting time of the project. Communication with neighbors can prevent complaints from arising, and resolve concerns before there is a problem. Provide a phone number where the foreman can be reached prior to the start of the job. 2. Operate equipment in accordance with manufacturer's specifications and with all standard manufacturers’ mufflers and noise-reducing equipment in use and in properly operating condition. 3. Post notices to inform workers, including sub-contractors, about the basic noise requirements, as well as specific noise restrictions, to the project. 4. Install noise barriers around all equipment/activities specified in Table 1: TYPICAL CONSTRUCTION EQUIPMENT REQUIRING NOISE SUPPRESSION. Noise barriers not only significantly reduce construction noise, but they also provide an extra benefit of “hiding” the noise producing sources, thus increasing a neighbor’s tolerance. (See also the attached list of noise blocking methods for details on approved noise barriers.) 5. Move portable loud equipment including generators, compressors, and cement mixers to different sides of the property to reduce impacts on individual neighbors. What can you do about construction noise? • The use of radios on the site before 8:00 am are not allowed: remind laborers and sub- contractors. • Noise suppression plans will not allow noisy machines such as brick cutters or jackhammers to be operated before 9.00 am. • Noisy equipment such as cement mixers should be placed on the site to maximize the distance from neighboring houses and/or rotate location so as to not impact just one neighbor. Noise levels drop quickly with distance from the source. • All equipment should be properly maintained, with special attention to mufflers and other noise control devices. • Between work periods, builders are required by city ordinance to shut down machines such as backhoes, bobcats, loaders and generators. • When dropping materials from a height—for example, into or out of a truck, or when loading or unloading scaffolding, noise suppression plans require a chute or side baffles. • All vehicular movements to and from the site must only be made during the scheduled normal working hours. This includes off-site noise that is associated with a specific project such as staging of concrete trucks. Revised 9/27/07 TABLE 1: NOISE CONSTRUCTION EQUIPMENT REQUIRING NOISE SUPPRESSION PLANS Equipment Category Auger Drill Rig Backhoe Chain Saw Clam Shovel Compressor (air) Concrete Mixer Concrete Pump Concrete Saw Crane (mobile or stationary) Dozer Drill Rig Excavator Front End Loader Generator (more than 25 KVA) Gradall Grader Horizontal Hydraulic Boring Jack Impact Pile Driver (diesel or drop) Impact Wrench Jackhammer* Mounted Impact Hammer (hoe ram) Paver Pneumatic Tools Rock Drill Scraper Scarifier Slurry Machine Vibratory Pile Driver Revised 9/27/07 Noise Blocking Methods Contractors shall require all subcontractors and vendors to use: • Quieter vs. Louder equipment • “Residential” grade combustion engine exhaust silencers • Electrical vs. pneumatic hand power tools: All pneumatic tools operated in the City of Aspen must be fitted with an effective silencer on their air exhaust port. • Hydraulic vs. air powered rock drills • “Silenced” pile drivers vs. Diesel pile drivers In general, noise reduction equipment and materials may include, but not be limited to: 1. Shields, shrouds, or intake and exhaust mufflers. 2. Noise-deadening material to line hoppers, conveyor transfer points, storage bins, or chutes. 3. Noise barriers using materials consistent with the Temporary Noise Barrier Materials Section. 4. Noise curtains 5. Plywood with concrete blankets at the height of the equipment and that it surrounds the activity such that it directs noise up more than out from the property. 6. Portable three sided enclosures made out of plywood to move with the activity such as jack hammering. 7. Internal combustion engines are to be fitted with a suitable muffler in good repair. Specific Equipment: Generators: The local power grid shall be used wherever feasible to limit generator noise. No generators larger than 25 KVA shall be used and, where a generator is necessary, it shall have maximum noise muffling capability. Backup Alarms: All equipment with backup alarms operated by the Contractor, vendors, suppliers, and subcontractors on the construction site shall be equipped with either audible self-adjusting ambient-sensitive backup alarms or manually- adjustable alarms. The ambient-sensitive alarms shall automatically adjust to a maximum of 5 dBA over the surrounding background noise levels. The manually-adjustable alarms shall be set at the lowest setting required to be audible above the surrounding noise. Installation and use of the alarms shall be consistent with the performance requirements of the current revisions of Society of Automotive Engineering (SAE) J994, J1446, and OSHA regulations. Compressors: The unit with the lowest noise rating which meets the requirements of the job should be used where work is conducted in the City of Aspen, installed with mufflers and/or enclosed in a noise barrier. Revised 9/27/07 Jackhammer: All jackhammers and pavement breakers used on the construction site shall have exhaust systems and mufflers that have been recommended by the manufacturer as having the lowest associated noise and shall be enclosed with shields or acoustical barrier enclosures. Concrete crushers or pavement saws: Pre-augur pile holes to reduce the duration of impact or vibratory pile driving and tie to local power grid to reduce the use of generators and shall be enclosed with shields or acoustical barrier enclosures. Pneumatic hand power tools: All pneumatic tools operated in the City of Aspen must be fitted with an effective silencer on their air exhaust port. Temporary Noise Barrier Materials: Temporary barriers shall be constructed of 3/4-inch Medium Density Overlay (MDO) plywood sheeting, or other material of equivalent utility and appearance having a surface weight of 2 pounds per square foot or greater. The temporary barriers shall be lined on one side with glass fiber, mineral wool, or other similar noise curtain type noise-absorbing material at least 2-inches. The materials used for temporary barriers shall be sufficient to last through the duration of the construction project, and shall be maintained in good repair. Prefabricated acoustic barriers are available from various vendors. An equivalent barrier design can be submitted in lieu of the plywood barrier described above. Impact Equipment: Impact noise is noise produced from impact or devices with discernible separation in sound pressure maxima. Examples for impact equipment include, but are not limited to; blasting, chisel drops, mounted impact hammers (hoe ram), and impact pile drivers. Impact equipment is the loudest and most intrusive to the neighboring property. The City of Aspen requires that this type activity have the strictest mitigation requirements and requires a customized noise suppression plan specific to the site. General contractors must contact the City of Aspen Environmental Health Department for an application at 970-920-5039. Noise Control • Replace worn, loose, or unbalanced machine parts that cause vibration. • Keep machine parts well lubricated to reduce friction. • Acoustical enclosures and barriers around generators • Sound absorbing material and vibration isolation systems on hand tools • Quiet work practices - use rubber mallets to erect and dismantle formwork. Revised 9/27/07 Revised 9/27/07 Noise Controls for Construction Equipment (Schneider et al., 1995) Equipment Noise Controls Pile Driver Enclosure, muffler Stone saw cutting Noise control pad with water Handheld impact drills Reduction of reflected sound Circular saw blades 15º tooth angle, new tooth configuration, slotted saw blades, viscoelastic damping Pneumatic tools Muffler Pavement breaker/ Rock drill Muffler, enclosure of cylinder case and front head, moil damping Portable air compressor Muffler, acoustic enclosures Bulldozer Bulldozer Cab-liner material, enclosure, sound absorption in canopy, sealing of all openings Wheeled loader Absorption of sound cooling air route Vibratory roller Flexible mounting for pump compartment Joint Cutter Anti-vibration mounting fixtures 2019Jan Feb Mar Apr May Jun Jul Aug Sep Oct NovID DescriptionOriginalDurationStart110 City of Aspen Permit Submission 012/31/18120 Building Permit Review10112/31/1810 Demo & Site Prep1005/21/19130 Building Permit Issued020 Excavation1006/01/1930 Concrete Footings506/13/1940 Concrete Walls506/19/1950 Foundation Drainage & Waterproofing 506/25/1990 Underslab Plumbing506/25/1960 Radon & Slab Prep507/01/1970 Basement & Crawlspace Slabs 507/06/1980Prep for Floor System Frame Lower Level Bearing Walls607/12/19100 Frame Main Level Floor System 607/19/19140 Backfill Foundation607/26/19150 Frame Main Level Walls608/02/19160 Frame Roof608/09/19170 Enclose Structure608/16/19200 Install Fascia408/16/19210 Roof and Wall Penetrations 308/23/19180 Roof Dry In208/27/19190 Install Windows & Doors608/29/19220 Finish Roofing Installation 1208/29/19240 MEP Rough Ins1808/29/19270 Mechanical Room Buildout 608/29/19230 Exterior Wall Finishes1809/05/19250 Install and Finish Drywall 1209/19/19290 Trees & Landscaping1209/26/19280 Interior Finishes1810/03/19260 MEPS Trim1210/10/19300 Sub Inspections & Referral Inspections1010/24/19310 Final Building Inspection111/07/19320 Certificate of Occupancy511/08/19Project StartProject FinishCity of Aspen Permit SubmissionBuilding Permit ReviewDemo & Site PrepBuilding Permit IssuedExcavationConcrete FootingsConcrete WallsFoundation Drainage & WaterproofingUnderslab PlumbingRadon & Slab PrepBasement & Crawlspace SlabsPrep for Floor System Frame Lower Level Bearing WallsFrame Main Level Floor SystemBackfill FoundationFrame Main Level WallsFrame RoofEnclose StructureInstall FasciaRoof and Wall PenetrationsRoof Dry InInstall Windows & DoorsFinish Roofing InstallationMEP Rough InsMechanical Room BuildoutExterior Wall FinishesInstall and Finish DrywallTrees & LandscapingInterior FinishesMEPS TrimSub Inspections & Referral InFinal Building InspectionCertificate of OccupancyStart Date: 12/31/18Finish Date: 11/14/19Data Date: 12/19/18Run Date: 12/19/18 211 Cottonwood CMP Schedule.ppxPage 1A211 Cottonwood LaneCMP ScheduleAppendix E Know what'sbelow.before you dig.CallRK SILT FENCE VEHICLE TRACKING PAD L ROCK SOCK JNot to ScaleNot to ScaleNot to Scaleph 970.945.5544 fx 970.945.5558 www.mountaincross-eng.com826 1/2 Grand Avenue Glenwood Springs, CO 81601ENGINEERING, INC.Civil and Environmental Consulting and DesignMOUNTAIN CROSSC3EROSION & SEDIMENT CONTROLEROSION CONTROL LEGENDLJKDCDCOMNNMBarney Residence211 Cottonwood LaneM6' chain linkconstruction fencewith green windscreen aroundperimeter.Temporary toiletRemovable gatepanels for access.Project will utilize atrash trailer.Plastic swimmingpool for limited onsiteconcrete washout.Material stagingProject parking tooccur in parkingeasement and inrented guest parkingspaces. Noise barriers to beconstructed asnecessary to complywith requirements ofnoise suppressionplan.Basement slab andmain level deck to beutilized for materialstaging as necessary.Appendix Frecyclables to beseparated and takento recycling facilitiesseparately. APPENDIX G - ORDINANCE NO. 35 Appendix G Ordinance 35 24.16.240 Construction Staging Area, Parking, and Emergency Vehicle Access Management Plan To ensure proper public health, welfare, and safety, the City of Aspen requires approval of job site plans describing construction staging arca(s), location and number of construction -related vehicles, and ensuring proper emergency Vehicle acoess for construction projects witbin the City of Aspen. These plans are required for all residential construction or remodeling of 1,500 square feet, or more, for any construction or remodeling involving multi-fa;nily buildings (three or more units), or for any construction or remodeling involving commercial buildings. All other conshttction activity shall be considered exempt from these provisions. The construction project shall be issued sheet parking perinits for the expected duration of the project for a fee. Parking permits issued, pursuant to as approved Construction S ' tagmg Area,Parking; and Emergency Vehicle Access Management Plan, shall permit the all -day on -street parking of construction related vehicles within the specified construction parking area for the duration of the construction project. Construction vehicles parked outside of the approved area or after the specified construction duration shag be considered in violation. The Chief Building Official shall require submission of a Construction Staging Area, Parking, and Emergency Vehicle Access Management Plan with submission of building permit documents. A building permit shall not be issued until mob plan has been reviewed and approved by the Chief Building official. All construction staging and construction parking shall be confined to the areas defined in the approved plan for the job site. Workers shall be. encouraged to carpool Enungency access, as described in the approved plan for the job site, Shall at no time be blocked. A stop work order may be issued upon non- - compliance. StaLo-n 2• Section 11.04.030 of the Municipal Code of the City of Aspen, Colorado, which Section defines, describes, and authorizes the, regulations for fire prevention and protection within the C' yof Aspen shbereby he ameude"by adding a section related ion related to requirements for construction projects within the City of Aspen and the use oftmWormy beating systems which said section sW read as follows: (h) Tru following shall be added to Section 8203.2.1.2: To ensure proper public health, welfare, and safety, the ,City of Aspen requires any consnuetion site using fuels to generate temporary heat for the purpose of conditioning space during the process of construction shall be equipped with; . 1.. Signaling devices capable of detecting dangerous levels of heat and/or smoke and capable of notifying a qualified party with responsibility to monitor the site and respond to the alarm mid take appropriate actions; Ordinance No. 35, Series of 2002 Page 2 2. As an alternate, an approved fire watch plan and schedule may be substituted for the alamtrequireme t; 3. Associated supply lines shall be protected from flame or heat impingement resulting in failure of the appliance. or supply hoses resulting in free flow of volatile fuel into .the atmosphere and/or fire situation; 4. A free flow shut-off value shall be required on all propene tanks supplying temporary heat systems; or, 5. Any other plan acceptable to the Fire Marshal Prior to the. installation of any temporary heating device(s), the system equipment check list, prepared and maintained by the Fire Marshal, shall be submitted and approved by the Fire Marshal's Office. It shall be the responsibility of the contractor to notify the Fire Marshal prior to the activation of any temporary, heating device. The principal contractor, or home owner -builder shall submit a statement acknowledging and agreeing to the terms of this section with submission of building permit documents. A stop work order may be issued upon non• compliance withprovisions of this section. (p) Section 16 of the Appendix II -A of the Uniform Fire Code is amended as follows: Section : This Ordinance is adopted as an emergency ordinance, pursuent to Section 4.11 of the City Charter, and shall be effective November 1, 2002 and apply to all currently permitted and active construabon projects within the City ofAspea thereafter. Section 4• This Ordinance &W not affect arty existing litigation and shall not operate as an abatement of any action or proceeding" now pending under or by virme of the ordmances repealed or amended as here= provided, and the same shall be conducted .and concluded under such prior ordinances. . Section If arty section, subsection, sentence, clause, phrase, or portion of this Ordinance is far any reason held invalid m unconstitatioral in a court of CmTdmt jund3dklion, such portion shall be deemed a separate, distinct and independent provision and "not affact the validity of the remaining portions thereof Secdon6' A public heart% on the Ordinanos shall be held on the IS" day of October, 2002; at 5;00 pm. in the City. Council Chambers, Aspen Cly Bail, Aspen Colorado, fifteen (15) days prior to which hearing a public notice of the same was published in a newspaper of general cinarlation within the City of Aspen. . Ordinance No. 35, Series of2002 Page 3 INTRODUCED, READ AND OADERED PUBLISHM as provided bylaw, bythe City Council oftbe City ofA%=onthe 2P day of September, 2002. Aft-teeststd- . IA ryS och,. City Clerk =Ili�Klandeftid. or FINALLY, adopted, passed and .approvadthis )�rdayooff�' c4D,6W2002. u � Kathryn oah, City Clerk Helen K K 8, " r Approved wto form: . Ordinance No. 35, Series of 2002 Page APPENDIX H - ENGINE IDLING Appendix H Engine Idling