Construction Management Option Andrew J. Hickey Construction Management Option 12/9/2018

William Penn High School Location: New Castle, DE Total Building Size: 2 Floors, 556,200 sq ft Project Cost: Phase I - $6,330,272 Phase II - $2,766,58 Phase III - $3,874,341 Construction Dates: Phase I – June ’02-August ’02 Phase II – June ’03-August ’03 Phase III – June ’04-August ’04 12/9/2018

Project History Built in 1958 Addition built onto the school in 1973 which doubled the size Currently the largest high school in Delaware 12/9/2018

Project Team Owner – Colonial School District Architect – Tetra Tech, Inc. MEP Engineers – Furlow Associates General Contractor – Ernest DiSabatino & Sons Mechanical Contractor – I.D. Griffith Electrical Contractor – Creedon Controls 12/9/2018

Topics of Discussion Asbestos Abatement Alternatives Schedule Acceleration & Site Layout Temporary Lighting Design 12/9/2018

Project Goals To convince the parents and administration of the Colonial School District of the safety and practicality of asbestos encasement To save the school district money by accelerating the project schedule by three months 12/9/2018

Asbestos Abatement Alternatives Currently Performing Asbestos Removal Total Cost = $903,949 Possible Alternatives Asbestos Encasement Area Closeoff 12/9/2018

Description of Asbestos Microscopic Bundles of Fibers Friable vs Non-Friable Possible diseases stemming from Asbestos: Emphazema Ensephalitis 12/9/2018

Description of Asbestos Asbestos is found in: Floor and ceiling tile Insulation Fireproofing Cement Asbestos does not become a hazard until the materials are disturbed or damaged 12/9/2018

Asbestos Locations – 1st Floor 12/9/2018

Asbestos Locations – 2nd Floor 12/9/2018

Asbestos Removal Complete removal & replacement of asbestos containing materials Area must be sealed off in an airtight enclosure until all asbestos containing materials are removed and the air quality is found to be suitable for occupation 12/9/2018

Asbestos Removal 12/9/2018

Asbestos Encasement Description: Total Cost for Asbestos Encasement: A plastic resin which covers the asbestos containing materials Total Cost for Asbestos Encasement: $229,400 Sealant does not last forever Global Encasement offers a 20 year warranty Encasement costs will equal removal in 100 years Schedule for Asbestos Encasement: Takes 1/3 of the time required for Removal 12/9/2018

Asbestos Encasement Costs 12/9/2018

Comparison between Methods Safety: Removal is thought as safest method New Jersey DHSS found that after removal, airborne asbestos levels remain at the level before removal and in some cases are elevated by as much as 45% The EPA has recently included asbestos encasement as an acceptable asbestos abatement method Encasement does not release fibers into the air 12/9/2018

Comparison between Methods Schedule Removal - Fourteen Weeks Other contractors cannot work in the same area Encasement – Six Weeks Other contractors can work in the same area 12/9/2018

Benefits of Asbestos Encasement Decreased risk of Adverse health effects A 75% lower initial cost of $229,400 Added protection for the finish of floors No adverse environmental impact 12/9/2018

Schedule Acceleration & Site Layout Current Schedule: Phase I – June ’02-August ’02 Phase II – June ’03-August ’03 Phase III – June ’04-August ’04 Reduced Schedule Phase II – June ’03-August ‘03 12/9/2018

Reasons for Schedule Acceleration Reduced cost due to less general conditions Project bid out as two-shift, six day a week Daily work logs show that only mechanical & electrical contractors worked both shifts Accelerated schedule will force all contractors to work both shifts 12/9/2018

1st Floor Work Flow Plan 12/9/2018

2nd Floor Work Flow Plan 12/9/2018

Comparison Between Schedules 12/9/2018

Downfalls of Two-Shift Six Day Work Studies have shown marked decreases in output by contractors working overtime for several weeks. Production efficiency for contractors working 8 hour workdays six days a week decreases from 100% to 90%. 2nd shift must take time to find out what work the 1st shift completed Superintendents are essential to two-shift work 12/9/2018

1st Phase Site Plan 12/9/2018

2nd Phase Site Plan 12/9/2018

Temporary Lighting Design Two-Shift Work Half of the contractors will be working at night Temp lighting needed to provide a safe and productive work environment Renovation Walls already in place Calculations need to be provided for each room 12/9/2018

Lighting Take-Off Materials: Total Cost Materials & Labor: 60 Total 20A Circuit Breakers 571 200W Lamps X 2 (Original + 1 Change) 571 Total Lamp Guards 571 Total Pig Tail Sockets 12,000’ Total Romex 1,142 Total Wire Connectors Total Cost Materials & Labor: $71,937 Total Cost Power for Temp Lighting: $7,171 12/9/2018

1st Floor Temporary Lighting Plan 12/9/2018

2nd Floor Temporary Lighting Plan 12/9/2018

Conclusions / Recommendations Accelerate the project schedule by three months and perform asbestos encasement Provides a safer environment for the faculty and students Saves the district $848,235 over the original schedule All contractors will be off of school grounds in only six months 12/9/2018

Credits / Acknowledgements 12/9/2018

Thank you 12/9/2018