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Wellesley High School Project

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  • 1. Wellesley High School Project Update for Annual Town Meeting April 2010
  • 2. Summer 2009
    • Construction of 3 off site parking lots with porous pavement for WHS staff
      • State Street lot expanded to 31 spaces; 26 for faculty, 5 for Brook path walkers
      • Tennis court lot expanded to 33 spaces
      • Basketball courts turned into 60 tandem spaces with 5 single spaces
  • 3. State Street lot expanded
  • 4. Summer 2009 cont.
    • Construction of 5 new classrooms in old school from lecture hall space to handle increased enrollment
  • 5. Upper part of lecture hall demolished. Steel beams to support new classrooms
  • 6. Corridor to 5 new classrooms
  • 7. New classroom
  • 8. Summer 2009 cont.
    • Construction fence up, scaffolding around edge of school adjacent to construction fence
    • House at 57 Seaver St. moved across site to Rice Street location
    • Air filters installed on air intakes of old school
    • Work to bring utilities on site begins
  • 9. Scaffolding around edge of old school to provide protected corridor
  • 10. September 2009
    • Old parking lot cleared (removal of planters, trees, asphalt)
    • Work continues on sewer and water
    • Official Groundbreaking 9/29/09
  • 11. Groundbreaking
  • 12. October 2009
    • Trailers set up on site
    • Concrete footings work begins
    • Asbestos and lead abatement on 2 remaining Seaver St. houses (#53 & #55)
    • Continued work on sewer and water
  • 13. Trailer complex on edge of Rice Street
  • 14. Site viewed from Rice Street
  • 15. Seaver Street house-lead abatement before demolition
  • 16. November 2009
    • 2 Seaver St. houses demolished
    • Concrete footings continue
  • 17. Concrete Foundation: Formwork is being installed, and reinforcement bars and anchor bolts are being set to pour concrete foundation walls, piers, and footings.
  • 18. Rebar in place as concrete is poured.
  • 19. November 2009 cont.
    • Pile driving begins on 11/9
      • 252 steel H piles vibrated in during school day and hammered to completion after school
      • Depth of 40-60 feet
      • Piles in areas A and B, remainder of building (C and D) has concrete spread footings
  • 20. Area reference plan of new school Rice Street Front offices, gym, locker rooms Auditorium, arts, science wing 2 academic wings cafeteria, classes above
  • 21. Equipment on site for pile driving.
  • 22. H Pile lifted into place
  • 23. Vibrating pile into place
  • 24. December 2009
    • Piles completed with little impact on function of school
    • Concrete footings continue
    • Begin review of thousands of steel drawings with architect and Turner
  • 25. January 2010
    • Foundation completed including all pile caps and spread footings
      • Piles excavated to install pile caps
      • Forms placed with rebar for pile caps and spread footings
      • Concrete poured
      • Cured with heat (as needed due to weather)
      • Waterproofed
      • Insulation installed
      • Backfilled
  • 26. Piles driven to completed depth.
  • 27. Pile Caps: Piles are being excavated in order to form pile caps.
  • 28. Pile Caps: Following excavation, piles are stoned to subgrade before placing forms with rebar and pouring concrete for pile caps.
  • 29. Concrete Foundation: Concrete is poured into forms with rebar in place.
  • 30. Forms in place for concrete pour.
  • 31. Pile Cap
  • 32. In order for the concrete to cure properly in winter months, heating coils with concrete blankets are set on it. Here are the heating coils.
  • 33. Here are the concrete blankets.
  • 34. Concrete blankets.
  • 35. Waterproofing: Concrete foundation walls and brick shelves are waterproofed. Procor waterproofing is sprayed on and rigid insulation is set in place.
  • 36. Spread footing section with waterproofing sprayed on and insulation in place.
  • 37. Backfilling: Due to the cold weather, it is important to remove the frost layer before backfilling with structural soil/fill. Here is unsuitable frost layer.
  • 38. Backfilling: Area following backfill with structural soil/fill.
  • 39. View from Seaver Street side of site.
  • 40. January cont.
    • Applied for construction permit
    • Rest of project out to bid
  • 41. February-March
    • Construction permit issued
    • Crane arrives on site in multiple pieces, is assembled and inspected by third party
    • Steel erection begins mid-March starting with Building C, followed by D, B, A
    • Utility work resumed with better weather in late March
  • 42. Steel: March-September 2010
    • 2000 tons of structural steel in plan
    • 10,000 individual pieces
      • Beams & Columns
      • Plates
      • Angles
      • Lintels
  • 43. Architect rendering of steel structure
  • 44. Steel erection began 3/12/10
  • 45. Steel erection in Building C, adjacent to back of old school
  • 46. Crane in action
  • 47. View from Seaver Street side of site
  • 48. Work begins on third floor
  • 49. View from lecture hall classroom in old school
  • 50. Looking forward into 2010-12
    • Installation of metal deck, followed by concrete
    • Then exterior skin with goal of being weather tight by early 2011
    • Building substantially complete by March 2012
    • Then commissioning of systems, move from old school
    • Open for students September, 2012
  • 51. Additional comments
    • Project is on time and within budget
    • MSBA closely monitoring project; both budget and progress of construction
    • GMP (guaranteed maximum price) signed by PBC in March
    • Outreach continues to neighbors and parents on progress and impact on school function
  • 52. View from above Photos taken by Turner Construction from WHS tower
  • 53. October 29, 2009
  • 54.  
  • 55.  
  • 56. November 14, 2009
  • 57.  
  • 58.  
  • 59. December 9, 2009
  • 60.  
  • 61.  
  • 62. January 11, 2010
  • 63.  
  • 64.  
  • 65. March 16, 2010
  • 66.  
  • 67.  
  • 68. March 31, 2010
  • 69.  
  • 70.  
  • 71.  

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