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HomeMy WebLinkAboutFile Documents.700 Gillespie St.0129.2018 (12).ACBKAspen Center for Physics Outdoor Classroom 700 West Gillespie St. Aspen, CO 81611 Construction Management Plan Revised 01/29/2019 Jeffrey Woodruff, Harry Teague Architects CC: Jeffrey Woodruff, S.L.O.W 2 Construction 1. Activity a. The Outdoor Seminar Patio is located to the West of the Aspen Center for Physics Parking lot and Stranahan Hall. b. Work hours: 7:30 AM – 5:30 PM M-F, 9 AM – 5 PM Saturday, no work allowed on Sundays 2. Construction Staging a. A staging area will be located at the South West corner of the Outdoor Seminar Patio, close to Bethe Hall. The staging will be used for steel erection. b. Materials like polycarbonate, cedar and slate will be stored in Stranahan Hall until ready for installation. 3. Parking a. All construction vehicles will park at the Aspen Center for Physics parking lot at the intersection of Gillespie Avenue and Sixth Street. b. There will be no on street parking during construction. c. Where possible construction workers will park at the Brush Creek and Hwy 82 Intercept lot and take RAFTA to 4th and Main. 4. Site Access a. The Outdoor Seminar Patio will be accessed from the Gravel Parking lot at the intersection of Gillespie Avenue and Sixth Street. b. The area to the North of Stranhan Hall will be the primary access point for all construction vehicles. c. Mini excavators and skeed steer loaders will be used for demolition of the existing hardscape. The primary access to the existing outdoor classroom is through the South entry to the outdoor classroom. The egress/door width is 7’-11 ¾” (The two entries on the North are 4’-10” and inaccessible by excavators.) d. There is a ditch, to the East of the Outdoor Seminar Patio, which will be covered by a steel plate (or temporarily filled in during construction). e. The ditch will be restored to its original state following construction. The area will be photographed before, during and after construction to ensure proper restoration of the surroundings. 5. Power a. Temporary power during construction will be supplied to the Outdoor Seminar Patio via Stranahan Hall. 6. Facilities and sanitation a. Lavatories and water closets will be supplied to the Outdoor Seminar Patio during construction via Stranahan Hall. b. Fresh water will be available via Stranahan Hall for all contractors. 7. Water for site use and cleaning a. A frost proof bib is available on the North East corner of Stranahan Wall. 8. Protection of water a. The two ditches/culverts (North and South of Stranahan Hall) will be protected throughout the construction process, to prevent any construction debris and run off. b. We may add additional silt fences as the season changes and if there is evidence of spring runoff through the site. 9. Fueling a. Any fueling of vehicles or machinery must be conducted in a designated area, at the gravel Aspen Center for Physics parking lot, in order to prevent accidental leakage or spills. 10. Proper Concrete wash out procedure a. Given the high pH and potential harmful chemicals in concrete, we will meet local storm water and EPA guidelines for concrete wash out, objectives: i. Collect and retain all wash out liquids and solids in an approved wash out container 01/29/2019 ii. Either the contents of the wash out will be placed back in mix or return to the plant for reuse or recycling iii. The only approved wash out area is the East area of the Aspen Center for Physics parking lot. 11. Soil a. Mini excavators and skeed steer loaders will be used for demolition of the existing hardscape. Soils/debris will be transported between the classroom and the Aspen Center for Physics Parking Lot. b. Given these vehicles will be not used on a paved surface care will be given to not transfer the soils/dirt from the site to the surrounding street. Any construction dirt and debris will be swept and disposed of properly. 12. Neighborhood cleanliness a. The new outdoor classroom is accessible via a path to the North of Stranahan Hall. Materials will be transported via small machinery (skeed steer and mini excavator). b. Before returning to neighborhood streets, construction vehicles will be inspected and cleaned in order to keep the neighboring streets unspoiled. 13. Survey a. A site survey of the Outdoor Classroom will be conducted following excavation. b. As per A102 site 100’ will be the edge of the slab and the concrete slab will be crowned to drain to the edge of the slab. 14. Erosion and Sediment control a. Storm and sediment control- the only area disturbed will be the ditch to the North of the site, it will be restored to its original state at the completion of construction. b. Over 1 ton of mulch was added to the North, East and South of the Classroom in order to protect the drip lines of the existing trees (Tree Protection Zone) c. As per A102, the new concrete classroom will be crowned at the center and drain to the surrounding perorated pipes. d. The existing center drain of the outdoor classroom will be removed as per the demolition plan. e. The interior circumference of the outdoor classroom (with the exception of the entries, which will be gravel) will be surrounded by 2’ of new soil. Below the 2’ of soil will be 1’ of gravel. In the gravel bed will be a perforated pipe. The perforated pipe surrounds the interior circumference of the outdoor classroom and drains to the (new) dry well North of the North East entry. See A401 for a section and A102 for the landscape plan. See SK10 for the DryWell cut sheet and a letter from Structural stating the location of the DryWell is clear of the existing concrete masonry walls. 15. Site protection a. The existing CMU walls will be covered in temporary sheathing in order to protect the existing finish. b. Temporary fencing will be erected for the location and installation of the drywell. c. Temporary fencing will be erected for the location and installation of conduit running from Stranahan Hall. 16. Special considerations a. Wetlands- not applicable b. Hazardous site conditions- not applicable, the existing ditch will be bridged or filled temporally for the duration of construction. 17. Noise a. Work hours: 7:30 AM – 5:30 PM M-F, 9 AM – 5 PM Saturday, no work allowed on Sundays b. The site is 200’ from Gillespie Avenue and approximately 235’ from the nearest residence. The distance between the parking lot and the site is approximately 60’. c. Any construction related activity that produces a decibel reading at the property line of greater than 90 decibels at any time shall be coordinated with the City of Aspen Building Department. d. The Aspen Center for Physics program, both internal and public programs will not be in session during construction. The Aspen Center for Physics programming is completed at the end of September 2018 for the season. The January session is currently in process. We will have completed construction on the Outdoor Classroom prior to the Aspen Center for Physics Summer 2019 season. e. At this time no blasting is anticipated. f. Pile Driving- not applicable g. Air and dust management- not applicable 18. Construction waste recycling 01/29/2019 a. Construction debris- The two waste streams are wood and concrete. Both streams will be sent to Pitkin County Landfill b. During construction we will have one roll-off dumpsters for construction waste c. When necessary, dumpsters will be transferred to the Pitkin County Landfill during operating hours. d. We will identify any potential diversion streams with the sub-contractors. e. The contractor will maintain the construction site and keep it clear of trash and debris. f. All efforts will be made to minimize waste and identify materials for recycling diversion. 19. Material storage a. We will store and stage materials to the Southwest of the Outdoor Seminar Patio. b. Materials requiring low moisture storage will be stored in Stranahan Hall for staging. Polycarbonate, cedar and slate are anticipated storage in Stranahan Hall prior to installation. c. The potential materials needing storage are aluminum and polycarbonate d. Drainage- the only area impacting drainage will be the existing ditch to the North of the Outdoor Seminar Patio. We will either fill the ditch or provide a steel or similar bridge necessary to transport materials and construction vehicles to the site. e. High impact events: The Contractor will be responsible to coordinate the three high impact events: the removal of the existing concrete pad, the installation of the new concrete footers and concrete pad and the erection of the steel structure. 20. Trees and vegetation a. As the existing concrete masonry walls are to remain, so to will the surrounding Aspen trees. No trees will be removed. b. Grape ivy and herbs/plants will be planted once construction of the remodeled Outdoor Seminar Patio is complete. c. The existing Virginia Creeper (Grape Ivy) will be stored on site with the largest possible root ball. It will be placed in #10 buckets (or similar) and watered every three weeks. d. All (aspen) trees neighboring the patio -10’ circumference from the exterior of the existing concrete masonry walls- will be protected by wood chips, measuring 6” deep. The wood chips will be placed around the trees prior to the placement of the barricades e. All aspen trees neighboring the patio will be wrapped in temporary tree protection fencing. The highly visible (orange) tree protection barriers will extend beyond the dripline. f. Trees between the Aspen Center for Physics outdoor classroom and the staging parking lot will receive similar drip line protection to above. g. As per the Colorado State University (Protecting Trees During Construction, 7.420) guidelines, the tree protection measures will guard from “bark removal, branch breakage, surface grading and trenching injury”. h. Tree protection zones will be maintained during and prior to construction. Tree protection zones may be added as well as silt fences erected prior to steel erection. Tree protection zones were established on the North, East and South of the outdoor classroom. We do not anticipate accessing the classroom from the North West 21. Grade a. The site is at approximately 7909’. b. The grade between the parking lot, the Outdoor Seminar Patio and the staging are relatively flat. c. There is no activity where the slope exceeds 30%. 22. International Fire Code a. Cutting and welding activities for precast erection, safety cabling, steel pipe and structural steel will be done in accordance with the International Fire Code. 23. Inspection: an AISC certified inspector will inspect all shop and field welds. 24. Project completion- stabilization, re-vegetation and certificate of occupancy a. The contractor shall keep the premises and surrounding area free from accumulation of waste materials or rubbish caused by operations under the contract. b. At completion of work, the contractor shall remove waste materials, rubbish, the contractors tools construction equipment machinery and surplus materials from the jobsite. c. Unsightly premises- the contractor and sub contractors will walk the jobsite and surrounding area daily to keep the premises clean of any construction debris. 01/29/2019 d. The surrounding landscape will be returned to its original state at the completion of construction. 01/29/2019