Preliminary Consultation
Hawthorne Elementary School
Major Building System Renovation
DCSD Project Number: 364-035
SSOE|S&W Project Number: 021-01172-03
September 07, 2021
Prepared by:
Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
Dekalb County School District
Hawthorne Elementary School – Major Building System Replacement
Dekalb County School District
1701 Mountain Industrial Boulevard
Stone Mountain, Georgia 30083
Ms. Cheryl Watson-Harris, Superintendent
https://www.dekalbschoolsga.org/
Dekalb County School District Facilities
Sam Moss Service Center
1780 Montreal Road
Tucker, GA 30084
Brian Albanese
Senior Project Manager
404.242.4582 (c)
C09271212@dekalbschoolsga.org
Hawthorne Elementary School
2535 Caladium Drive NE
Atlanta, Georgia 30345
http://www.hawthornees.dekalb.k12.ga.us/
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
DESIGN TEAM
Architecture:
SSOE | Stevens & Wilkinson
100 Peachtree Street, NW
Suite 2500
Atlanta, Georgia 30303
https://ssoe-sw.com/
Bill Polk, AIA, LEED BD+C Josef Fischer
Principal-in-charge Project Manager
404.521.6208 (d), 404.723.8287 (c) 404.521.6358
bpolk@ssoe.com jfischer@ssoe.com
Engineering:
SSOE | Stevens & Wilkinson
100 Peachtree Street, NW
Suite 2500
Atlanta, Georgia 30303
https://ssoe-sw.com/
Ken Daenecke Grant Cherrington
Engineering Principal-in-charge, Electrical HVAC Project Manager
Project Manager
404.521.6332 (d) 404.521.6342 (d)
kdaenecke@ssoe.com gcherrington@ssoe.com
Cost Estimating:
ADE Construction Consultants, Inc
1298 Rockbridge Road
Suite A
Stone Mountain, Georgia 30087
Dan Ergle
770.921.2701
danergle@adeconstructionconsultants.com
Civil Engineering
Eberly & Associates
2951 Flowers Road South
Suite 119
Atlanta, Georgia 30341
Jeremiah Phillips, PE
678.287.4727 (d)
jphillips@eberly.net
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
TABLE OF CONTENTS
Table of Contents
Introduction
Report Scope p.4
Project Summary p.4
Schedule Summary p.4
Budget Summary p.4
Context / Existing Conditions
Hawthorne Elementary School p.5
Design Criteria p.6
Building Codes p.6
Strategy
Hawthorne Elementary School HVAC Solutions p.8
Hawthorne Elementary School Electrical Solutions p.13
Hawthorne Elementary School Life Safety Solutions p.15
Hawthorne Elementary School Plumbing Solutions p.16
Hawthorne Elementary School Site Improvement Solutions p.16
Hawthorne Elementary School Architectural Solutions p.17
Executive Summary p.20
Preliminary Cost Analysis Appendix 1
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
INTRODUCTION
Report Scope
This report will assess existing conditions at Hawthorne Elementary School and recommend
replacement options for major systems and related improvements.
Project Summary/Scope of Work
Dekalb County School System has defined a scope of work to replace heating, ventilation, and
air conditioning (HVAC) components at Hawthorne Elementary School. The scope of work
includes the following items from the original RFP #RFQu 21-752-032 for Hawthorne (364-35),
dated 03.25.21:
• Replacement of HVAC components throughout the building
The above is not intended to be an all-inclusive list of the scope of work. At the pre-proposal
meeting held on August 13, Brian Albanese reiterated the RFQ’s intent for SSOE | S&W to
make scope recommendations based on the existing conditions observed as part of our report.
SSOE | S&W recommends the following items to be added to the scope, to be elaborated in the
remaining sections of our report.
• Roof replacement
• Full HVAC system replacement
• Fire alarm replacement
• Intercom replacement
• Outdoor and classroom lighting replacement
• Emergency generator installation
• Fire sprinkler installation
• Ceiling replacement
• Modifications to room layout to allow for the creation of a dedicated electrical room
separate from mechanical room 99.4, affecting rooms 99.4, 101, 101.1, 101.2 102,
and 102.1.
• Plumbing fixture replacement one for one
• Main sewer line replacement – approximately 100’ of subgrade exterior
• Wheelchair lift for stage
Schedule Summary
The construction phase is tentatively scheduled to occur per the RFP from 07.01.22 through the
07.31.23. Design work is to be completed by mid-January 2022, with permitting and bidding
scheduled for early 2022, allowing time for a contractor to begin procuring equipment prior to
construction start.
Budget Summary
The construction budget for this project is $3,350,000. The preliminary cost review included in
this report is based on this narrative and will be used to reconcile the scope with the budget.
Our preliminary cost review has a proposed construction budget of $5,671,659. This initial cost
analysis shows an 69% increase in the stated cost limitation defined by the original RFQ.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
CONTEXT / EXISTING CONDITIONS
Hawthorne Elementary School is a 53,418 square foot one-story elementary school building in
the Dekalb County School System. The original building (building 2010) is 32,060 square feet
and was constructed in 1961. A one-story 6,240 square foot addition (building 2011) was built in
1963, a 9,640 square foot one-story addition (building 2012) was built in 1966, and a 5,478
square foot gym (building 2020) was built in 2003.
^
^ Hawthorne Elementary School Aerial View
HVAC: The school has several types of HVAC systems.
• Building 2010, 2011, 2012: 2-pipe system water source heat pump (WSHP) with zone
level WSHPs, and unit ventilators. The 2-pipe system distributes condenser water to the
WSHPs.
• Building 2010: The administration area is partially separated from the main system and
served by mini-split ductless units with condensers on grade outside.
• Building 2020: gymnasium has a 25 ton packaged air conditioning unit installed on grade
on the north side of the building. The unit cools supply air by direct expansion (DX)
refrigerant and heats utilizing natural gas. Supply and return duct work is installed on the
building exterior.
• The existing boiler exploded recently and has not been replaced. The zone pumps are
leaking throughout the building.
• Abandoned unit ventilator cabinets still exist along the exterior wall of all classrooms,
and are open to unconditioned outside air.
• Existing 1960s ductwork is not insulated properly in select locations around the building.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
• Piping systems are insulated with asbestos laden material identified with warning
language labeled on the insulation. Replacement will require hazardous materials
remediation.
Fire Protection: The facility is not currently served by a fire sprinkler system.
Plumbing: Restroom fixtures are not operational in many locations and beyond their useful life.
Partition doors are attached to demising walls built of glazed units and CMU. Doors are
consistently pulled out of broken glazed units. Water heater dates vary but are past their useful
life. The school sanitary system backs up frequently due to a problem downstream in the main
line. Scoping will be required to verify the issue.
Electrical: Electrical systems for each building appear to date to the original construction for
each building. Lighting has been replaced in the corridors, media center, and cafeteria with flat
panel LED fixtures. Classrooms, administrative offices, and back-of-house spaces are provided
with fluorescent fixtures.
Low Voltage: Fire alarm and sound system appear to date to the original construction for each
building.
Design Criteria
SSOE | S&W will follow the Dekalb County School District Design Guidelines for Facility
Construction, version 2018.04.04.
SSOE | S&W has also reviewed the School Assessment Reports for the school dated May 19,
2016 and April 15, 2021. Based on our review of these reports, the scope of work and our
recommendations for renovation / replacement will align with the recommendations of these
reports.
Building Codes
State Minimum Standard Codes
• International Building Code (IBC), 2018 Edition w/ Georgia Amendments dated 2020
• International Fire Code (IFC), 2018 Edition as amended by OICFSC Rules and
Regulations 120-3-3
• International Plumbing Code (IPC), 2018 Edition w/ Georgia Amendments dated 2020
• International Mechanical Code (IMC) 2018 Edition w/ Georgia Amendments dated 2020
• International Fuel Gas Code (IFGC) 2018 Edition w/ Georgia Amendments dated 2020
• National Electrical Code, 2020 Edition w/ Georgia Amendments dated 2021
• International Energy Conservation Code, 2015 Edition w/ Georgia Supplements and
Amendments dated 2020.
• NFPA 101 Life Safety Code, 2018 Edition as amended by OICFSC Rules and
Regulations 120-3-3
• Georgia Accessibility Code as adopted and amended by OICFSC Rules and
Regulations 120-3-20
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
Life Safety Code 2018 - Chapter 43.4
The project scale per LSC Chapter 43 Building Rehabilitations definition for Renovation will
apply for most of Hawthorne Elementary School. New work shall comply with the requirements
of Chapter 15 Existing Education and associated referenced sections. New interior finish
materials will need to meet the requirements for new construction. A proposed Modification per
Section 43.5 is provided as shown in Appendix 2 to resolve the existing mechanical and
electrical room 99.4 clearance issues. The new fire riser location is proposed in mechanical
room 99.4. The addition of sprinklers to Hawthorne Elementary School may require the work to
comply with Section 43.5 Modifications which requires the new work to comply with the
requirements of new construction, Chapter 14 Education, and associated referenced sections.
Means of Egress occupancy load and exit capacity will be confirmed based on current
Certificates of Occupancy or assumption of occupancy based on classroom occupants:
• Hawthorne ES– Since no Certificate of Occupancy is available for this building, assume
40 occupants per classroom (25 classrooms = 1,000 occupants) + the cafeteria
occupancy at 15 SF per occupant in 4,426 SF = 296 occupants for a total max
occupancy of 1,296, well within the calculated existing exit capacity of 2,240, utilizing 7
double doors.
GA IBC 2020 Amendments – Section 3401
The Georgia Amendments to the 2018 IBC added Section 3401.7 ‘Existing System
conformance’ to clarify the extents of existing systems that will have to be modified to conform
to the requirements of the State Minimum Standard Codes. Item #1 will require new work to be
brought into conformance with the current codes if the new work is less than 50% of the
replacement cost of the existing system. Item #2 will require the entire system to be made to
conform to current codes if the new work is equal to or greater than 50% of the replacement
cost of the existing system. Most of the proposed project scope will fall under item #2 requiring
the entire system meet current code. Systems impacted will be existing mechanical, electrical,
plumbing, and life safety systems. Plumbing fixture replacement will be one for one and will not
include renovation of the toilet rooms.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
Hawthorne Elementary School
HVAC Solutions
DCSD scope for Hawthorne Elementary is listed as component replacement. Based on the age
of systems and site assessment SSOE | S&W is recommending that the scope be modified to
include a complete system replacement. The system replacement recommended is a water
source heat pump condenser water loop system, including all associated duct work.
Demolition:
At building 2010, 2011, and 2012, remove and discard the existing HVAC systems including:
• Cooling tower
• Natural gas fired boiler
• Condenser water pumps
• Packaged WSHPs
• Exhaust fans
• Split systems
• Condenser water piping
• Metal and non-metal duct work
• Grilles, registers, and diffusers
• Direct digital controls systems
• All systems in the ceiling plenum that have been previously abandoned in place.
• All systems and equipment on the roof that have been previously abandoned in place.
Existing systems to remain include:
• Gymnasium (building 2020) is served by a brand-new packaged unit mounted on grade.
No work shall be required in this building.
• Process systems are not part of this scope of work and as such will not be replaced. This
pertains primarily to all existing kitchen systems.
Proposed HVAC System:
DCSD acceptable equipment manufacturers for select equipment:
• Exhaust fans: Greenheck, Cook, Jennaire, Gaylord, Halton, and CaptiveAire
• Cooling Towers: Evapco
• Water treatment: Superior Water Services, Inc.
• Boilers: Ajax, Rite, and Apac
• Chillers (air cooled only): Carrier
• Pumps: Bell & Gossett, Flo‐Fab, Patterson, Taco, Inc., and Armstrong
• Dehumidification Units: Munters
• Heat Exchangers: Sondex, Inc.
• Flow Controls and Balancing Valves for Supply and Return Line Assemblies: Flow
Design, Inc., Griswold, and Bell & Gossett
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
• Automated Temperature Controls and Energy Management System: Direct digital
control system sole source is STAEFA TALON. Submit listing of control points for
approval by DeKalb County School District.
• Building automation system controls shall be Web Control by CCI only.
The following is a schematic summary of the new HVAC systems:
1. Central Energy Systems
a. Provide two (2) new natural gas fired condensing boilers totaling 4.25 MBTU/hr
(one 2,000 MBTU/hr and one 1,000 MBTU/hr).
b. Provide one (1) new 150 ton / 360 gallon per minute (gpm) cooling tower with
water side economizer. Cooling tower shall be closed circuit type.
c. Provide two (2) new 25 horse power (hp) condenser water pumps.
d. Provide new chemical treatment system for hydronic loop.
e. Cooling tower fan and condenser water pumps shall be variable frequency drive
(VFD).
2. Controls
a. Provide all new direct digital controls (DDC).
3. Ventilation Systems
a. Provide two (2) new dedicated outdoor air systems (DOAS), one for each
classroom wing. Each DOAS shall serve fourteen classrooms, each with 30
students. Outdoor air flow shall be provided at 10 CFM per person and 0.12 CFM
per ft2. Each classroom shall be provided with 400 CFM. Each DOAS shall
provide 5,500 CFM.
b. DOAS units shall ventilate core restrooms and classroom restrooms in each
wing. Each core restroom shall require approximately 1,300 CFM of exhaust air.
Each classroom restroom shall require approximately 100 CFM of exhaust air.
c. DOAS units shall have powered exhaust accessory to relieve excess pressure.
d. Janitor's closet shall have dedicated inline exhaust fan (EF) estimated to be 150
CFM.
4. Environmental Units
a. Kitchen
i. Packaged roof top unit (RTU) with natural gas heating. Estimated size of
5 tons.
b. Cafeteria
i. Packaged water source heat pump (WSHP). Estimated size of 25 tons.
c. Media Center
i. Packaged water source heat pumps (WSHP). Three (3) units with
estimated size of 5 tons each.
ii. Office and work room and conference rooms shall be placed on
independently controlled, separate zones.
iii. Media Center shall be equipped with humidity sensors.
d. Administration
i. Packaged RTU with natural gas heating. Estimated size of 7.5 tons.
e. Classrooms
i. Packaged WSHP. Twenty-five (25) units with estimated size of 3 tons
each.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
f. IT/Telecom Room: One (1) wall mounted ductless mini-split with estimated
capacity of 1.5 tons.
g. Mechanical rooms shall be ventilated using a roof mounted EF, and heated using
wall mounted electric unit heaters.
h. Vestibules and corridor areas adjacent to exterior doors shall have ceiling
mounted electric unit heaters.
5. Filtration
a. Air filtration shall be a minimum MERV 13.
b. Bipolar ionization shall be provided for all units recirculating indoor air. Ionization
shall not be required for outdoor air systems.
6. Air Distribution
a. Duct work downstream of new RTUs shall be 4 inwc pressure class.
b. Duct work downstream of new WSHPs shall be 2 inwc pressure class.
c. Duct work downstream of new EFs shall be 2 inwc pressure class.
7. Insulation
a. Duct work: 2 inch fiberglass batt insulation, 75 lb/ft3 with foil jacket.
b. Condenser piping: 2 inch cellular glass with jacketing.
c. Condenser water piping with insulation installed outdoors, or in mechanical
rooms shall be protected with metal jacketing.
• BUILDING 2010, 2011, AND 2012
Description of Heating, Air Conditioning, and Ventilation Systems to be completely
furnished and installed shall include, but not be limited to, the following:
o The heating and air conditioning of the new classrooms will be provided by water
source heat pumps. This year‐round system will consist of horizontal above‐the‐
ceiling heat pumps sized to handle the individual zones served. The system shall tie
into a two‐pipe closed water loop maintained throughout the year in a temperature
range of between 60 deg. F and 100 deg F. The temperature range shall be
maintained by supplemental heating being injected into the water loop, and cooling
shall be maintained by the rate of heat rejection capability of the cooling tower.
Heating is introduced by gas‐fired boilers (or electric boilers, based on owner’s
preference) located in the mechanical equipment room and cooling is supplied by
cooling towers and plate and frame heat exchangers (type 304 Stainless Steel). One
heat pump will serve each classroom.
o Water in the loop is distributed throughout the building to the heat pumps by variable
speed circulating pumps located in the mechanical room.
o The cooling tower fan and associated condenser water pumps shall be VFD.
o Ventilation air shall be introduced into the classrooms by a constant volume, 100
percent outside air units with heat reclaim via an exhaust air heat exchanger. Air
shall be supplied into the building via horizontal ducts in the ceiling cavity following
treatment of air by an air-to-air energy recovery unit. Each wing shall be provided
with its own energy recovery unit.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
o The internal surfaces of air units, heat pumps, plenums, supply and return ductwork,
etc. shall be protected during construction from dirt, dust and debris. These items
shall be clean when the systems are turned over to the Owner.
o The new water source heat pumps shall be equipped with a quick opening/slow
closing two‐way solenoid water valve for variable speed pumping requirements.
Water Source Heat Pumps shall be provided with hot-gas reheat for humidity control.
o Ionic generation by Global Plasma Solutions shall be used in the supply ductwork of the
new heat pumps to improve air quality and help mitigate the proliferation of COVID-
19. The whole building will have ionic generation.
o Provide the highest Minimum Efficiency Reporting Value (MERV) applicable for the
HVAC units (WSHP and DOAS). MERV 13 is recommended minimum if equipment
can accommodate pressure drop and MERV 14 is preferred.
o During a Pandemic event, the HVAC control system shall have the capability to
disable any Demand Control Ventilation (DCV) and introduce the maximum possible
outdoor air flow 24/7 until the event expires. During this event indoor environmental
conditions may require limiting comfort setpoints.
o IDF rooms will be cooled utilizing a split system air conditioning unit with condensing
unit mounted on roof.
o Electrical rooms will be cooled utilizing a split system air conditioning unit with
condensing unit mounted on roof.
o Space air diffusers, registers and grilles shall be complimentary to the ceiling spaces
utilized in the individual spaces.
o New packaged HVAC systems will be used for: the Administration Area, Media
Center, Cafeteria/Stage, and Kitchen.
o All ductwork systems will be galvanized steel constructed per the latest SMACNA
Standards. Duct work between the Energy Recovery Unit will be constructed to 2”
pressure requirements.
o All duct work will be insulated with a FSK faced blanket insulation that has an
installed R-value of 4.2 or greater. For exposed ductwork less than 8’ above the
finished floor, provide rigid duct board insulation with aluminum jacketing. Provide
glass-fab tape and low-VOC vapor barrier mastic. Foil tape is not acceptable even
for patching tears.
o Split systems
o Air-cooled split systems will be provided to cool IDF rooms to allow these spaces
to be placed on backup power systems.
o Wall mounted or ceiling cassette split system fan coil units with condensate pumps
will be provided for each space. Wall mounted thermostats by the manufacturer
will be provided.
o Air-cooled outdoor units will be located on the roof or at grade.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
Additional Requirements
o DDC Controls:
DDC controls will be utilized for all equipment. Individual microprocessor based
digital equipment controllers with a standalone building management system
that will report to a central local area network for building global
communications from a central location. All major equipment controllers will
have standalone capability with respect to the specific equipment in each
system that is served from a dedicated control panel.
The DDC system for this facility will consist of a central building controller
connected to lower-level application specific equipment controllers through a
local area network cable system. The central building controller in this facility
will include the interface necessary for internet-based access. However, the
DDC controllers will have stand-alone operational capability, with the
respective equipment related to each system served from a dedicated control
panel. The central building controller will be equipped to connect to a laptop
computer for local set point adjustment.
Individual room/zone temperature control will be provided through wall
mounted temperature sensors with local timed override and user temperature
set point adjustment within 2-degrees of set point at 1-degree intervals.
Each classroom, media center, and other high occupancy area will include a
humidity sensor to provide input so that systems can be manipulated to
maintain space humidity below the set point. Classrooms shall have occupancy
sensors to control HVAC setback.
Each classroom will also include a CO2 sensor to indicate occupancy. The CO2
sensor will be used to modulate the outside air level to maintain space the CO2
differential set point.
The DDC System will be capable of displaying status, entering and leaving
conditions, etc. for all equipment. This system will be capable of trending
simultaneous control points. This system will also be capable of individual user
IDs & passwords with multiple levels of access to the DDC System. The DDC
System will only be accessible to authorized users through a secure internet
interface.
o TESTING, ADJUSTING AND BALANCING (TAB):
All airside equipment will require a comprehensive testing and balancing
process by an AABC or NEBB certified firm.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
The TAB contractor will be a third-party firm, and not a subcontractor of the
mechanical and/or plumbing contractor.
All reports will be submitted on AABC or NEBB forms.
o COMMISSIONING:
The owner will be responsible for obtaining the services of a qualified
commissioning agent capable of the level of commission (basic or enhanced
commissioning).
The mechanical contractor, DDC contractor, and all of their sub-contractors will
provide all necessary support required to complete the commissioning process.
Hawthorne Elementary School
Electrical Solutions
Demolition
• Existing lighting fixtures throughout facility were replaced within the last 4-5 years with
an assortment of 32W T8 fluorescent lamped linear lighting fixtures mostly 2’x4’
volumetric center basket type and lensed troffers found in administrative areas,
classrooms and cafeteria.
• Most of the original power distribution equipment was replaced within the last 4-5 years,
except for computer dedicated panelboards and transformer, a few loadcenters, and
gymnasium panel and transformer.
Power Distribution
• Existing surface raceways and devices (receptacles, teacher station outlets, data, etc.)
should be replaced with an aluminum dual compartment type surface raceway with new
devices to match existing and DCSD guidelines.
• Provide GFCI type receptacle outlets at HACR equipment and in utility spaces.
• Provide GFCI type receptacle outlets or GFCI type circuit breakers serving kitchen
equipment per NEC.
• Main Mechanical room shall be reconfigured to improve on code required clearances
and headroom above electrical equipment. Various water pipes are indiscriminately
routed above and around existing electrical equipment. Water puddling is present
around electrical equipment. Existing power distribution added 4-5 years ago found in
good working conditions will be relocated to new Electrical Room. See architectural
sketch.
• Provide new power distribution equipment to match existing Computer Dedicated panel
boards (208V) and step down transformer in new Electrical Room. See architectural
sketch.
• Replace Gymnasium panelboard, transformer and disconnect switch.
• Provide dedicated spaces for new power distribution equipment that will replace existing
equipment currently located in Custodian Rooms and near water piping.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
• Provide surge protective devices at Main Service, sources serving roof top mounted
equipment and sensitive electronic loads.
• Provide a natural gas generator, est. 125KW, 480Y/277V, 3ph, 4w.
• Provide a generator docking station for maintenance, 100A, 480Y/277V, 3ph, 4w.
• Provide fault current study, arc flash hazard study and coordination study. The
emergency system shall be selectively coordinated.
Lighting Fixtures and Controls
• Outdoor lighting fixtures mounted on walls and underside of soffits and canopies shall be
replaced with LED lighting fixtures.
• Replace existing lighting throughout with new LED lighting fixtures.
• Provide new LED exit signs throughout.
• Provide occupancy and vacancy controls throughout. Corridors shall be time clock
controlled.
• Lighting switches shall be lowered to ADA mounting heights.
• Provide elementary school level theatrical lighting batten and lighting instruments and
dimming control console.
Low Voltage
• Remove abandoned equipment and low voltage cabling from above the ceilings and
roof.
• Replace existing intercommunications and time clock system with new to include
headend equipment, call stations, speakers, and cabling.
• Data cabling management above equipment racks shall be improved by securely
fastening in place. Relocate patch panel, switch, data cabling and patch cables from
shelf to a wall mounted cabinet. Provide new CAT6 cabling from patch panel to the
workstation area outlet.
Fire Alarm
• Replace existing fire alarm control panel, power boosters, Digital Alarm Communicator
Transmitter, initiation devices (smoke detectors, pull stations), notification appliances
(strobes, strobe/horns, bells) and cabling with a new fully addressable and code
compliant coverage throughout the facility. Provide voice evacuation control for
assembly areas (cafeteria, gymnasium, Media Center).
• Provide testing for an Emergency Responders Radio Coverage System and include
allowance for a new system.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
Hawthorne Elementary School
Life Safety Solutions
• Provide complete wet system automatic sprinkler throughout the building in accordance
with NFPA 13, & 24 latest edition, Georgia State Minimum Standard Fire Prevention
Code (International Fire Code), 2018 Edition, State of Georgia Chapter 120‐3‐3 "Rules
of Safety Fire Commissioner, Rules and Regulations. The system shall and consist of
the following major elements:
• The building will have a post indicator valve, backflow preventer, and rough brass wall
mounted fire department connection provided in accordance with NFPA 24, "Standard
for the Installation of Private Fire Service Mains and their Appurtenances" as amended
by 120‐3‐3.
• Provide fire department hose and test connections as and where required by the Fire
Marshal.
• Provide pressure reducing stations as required if main water pressure fluctuates and
exceeds fire protection system working pressure.
• Fire Sprinkler Heads:
o Suspended Ceiling Types: Semi‐recessed pendent type with matching push on
two-piece escutcheon plate. Finish: Chrome. Escutcheon Plate Finish: Enamel,
chrome.
o Gypsum Board Ceiling Type: Concealed pendent type with cover plate. Sprinkler
Finish: Brass. Cover Plate Finish: White.
o Exposed Area Type: Standard upright type with guard when below 8'‐0" AFF.
Finish: Brass.
o Sidewall Type: Standard horizontal sidewall type with matching push on two-
piece escutcheon plate. Finish: Chrome. Escutcheon Plate Finish: Enamel,
chrome.
• The fire protection design will include a minimum of 10 psi safety factor to allow for
future losses in the water service pressure characteristics
• Automatic sprinkler system materials:
o Buried piping: ductile iron pipe, ansi‐21.51, 250 psi minimum working pressure
with slip‐on joints, ansi‐a21.11.
o Above Ground Piping: Black carbon steel pipe. 2‐inch and Smaller: ASTM‐A‐
135, Grade A, schedule 40 with 175 lb. black threaded cast iron fittings. 2‐1/2‐
inch thru 6‐inch: ASTM‐A‐135, ASTM‐A‐53, grade A, schedule 10 with malleable
iron grooved pipe fittings.
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Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
Hawthorne Elementary School
Plumbing Solutions
• All existing plumbing fixtures shall be replaced with new fixtures (one for one). Plumbing
fixtures to be replaced included, but not limited to, the following:
o Water Closets
o Urinals
o Lavatories
o Sinks
o Water Fountains
o Janitor Sinks
o Hand Sinks located in the Kitchen will be replaced as required. No other Kitchen
equipment is to be replaced.
• All plumbing fixtures shall be water efficient. The plumbing system will be designed with
water efficiency goals.
• All existing water heaters and recirculating pumps will be replaced with new. Preferred
manufacturers are Rheem, and Rudd.
• Specified materials and equipment will be standard products of manufacturers regularly
engaged in the manufacture of such products.
o Toilet areas and plumbing fixtures will be handicapped accessible.
o All other control components and equipment requiring adjustment and/or
maintenance shall be readily accessible through the use of lay-in ceilings and/or
appropriately sized access doors.
Hawthorne Elementary School
Site Improvement Solutions
Based on visual site review, the following site modification items will be included in the scope of
work:
• Provide a new fire line with double detector check valve assembly from Caladium Drive NE
to a new vault outside the building. New line will go to existing mechanical room 99.4 and
split into 2 risers.
• A Reduce Pressure Zone (RPZ) will be added to the existing Domestic Water main for
building service.
• Approximately 100-feet of existing sanitary main will need to be replaced (blue). Existing
line will need to be scoped in both directions from the manhole to confirm extents of the
damage.
• Playground and surrounding area (brown) is waterlogged. Existing yard drains appear
adequate in number, but playground loose rubber will need to be removed to add drainage
system, and replaced with rubber mulch and modular plastic curbs.
Preliminary Consultation | 09.07.21 | 16
Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
^ Hawthorne Elementary School Utility Plan
Hawthorne Elementary School
Architectural Solutions
ROOFING:
Although the existing modified bitumen roof not included in the DCSD Scope of work, we
observed roof leaks in multiple locations and the roof system is nearing the end of its estimated
useful life. Due to the duration of ongoing roof leaks, the underlying insulation is most likely
waterlogged. Full replacement is recommended.
CEILINGS:
Although the existing ceilings are not included in the DCSD Scope of work, per our review of the
existing acoustical ceiling panels and grid systems, the ceilings appear to be in fair shape. With
the scope of work identified by the electrical, HVAC, and new fire sprinkler, it is our opinion that
the existing acoustical ceilings would not be salvageable or re-useable. We are recommending
replacement of all acoustical ceiling systems.
Demolition: All acoustical ceiling panel systems will be removed and discarded in association
with replacement of building lighting and HVAC systems, including acoustical panels, metal grid,
and hangars.
All existing devices to remain mounted to the existing ceiling will be identified, removed, bagged
and tagged and placed above ceiling, or otherwise protected during construction for re-
installation after construction. These devices include LED lighting, smoke detectors, cameras,
and wireless devices.
New 2x2 acoustical panel ceilings will replace demolished ceilings unless noted otherwise.
Ceiling tiles basis of design to be 24 x 24 format - Armstrong Ceilings Cortega 770. Ceiling grid
Preliminary Consultation | 09.07.21 | 17
Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
basis of design to be 15/16” exposed tee grids – Armstrong Prelude. Scrubbable ceiling tiles
will be provided in the kitchen and restroom areas.
Existing finishes to be repaired as needed for patching or repairing areas affected by HVAC and
electrical modifications. This should include repainting of all hard ceilings due to lighting
replacement.
STAGE WHEELCHAIR LIFT:
DCSD requested that we consider the feasibility of a permanent ADA accessible wheelchair lift
for the stage. Provided below is a sketch showing a possible location and minimum clearances
for the lift based on previous projects with similar scope.
^ Hawthorne Elementary School existing Stage and storage ^Proposed new storage entry and wheelchair lift
MECHANICAL/ELECTRICAL ROOMS, CLASSROOM AND TEACHER WORKROOM:
The new electrical distribution main with separate dedicated emergency power will require
clearance and fire safety requirements that do not fit in the existing conditions located in the 400
square feet mechanical room 99.4.
^ Hawthorne Elementary School existing Electrical/Mechanical Layout
Preliminary Consultation | 09.07.21 | 18
Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
We propose to carve out a new electrical room from the old classroom 102. The remaining old
classroom space will be re-purposed as a new teacher workroom with psych and special ed
offices 101, 101.1, and 101.2, respectively. The Teacher workroom will be smaller than existing
conditions. The old teacher workroom 101 will then be re-purposed as a new location for
classroom 102 by adding an ADA toilet room and exterior sink/cabinets as shown, demolishing
the old Sp ed/psych demising walls. Finishes, including VCT/ceramic tile flooring, paint,
cabinets, plumbing fixtures, ceilings, etc. will be new to match existing conditions.
^ Hawthorne Elementary School proposed Electrical/Mechanical Layout
Preliminary Consultation | 09.07.21 | 19
Dekalb County School District Hawthorne Elementary School
Major Building System Renovation
Hawthorne Elementary School
Executive Summary
Hawthorne Elementary School will undergo a building systems-focused renovation due to the
age and current condition of the systems. SSOE | S&W recommends the following scope of
work:
The HVAC systems will be replaced with new equipment to provide a 2 pipe water source heat
pump system for classrooms and new packaged units for administration, media center,
gymnasium, and kitchen/cafeteria.
The electrical power distribution system will be replaced along with selected panel boards.
Existing lighting and power distribution equipment will remain. A new generator will be provided.
Plumbing fixtures will be replaced one for one.
Fire alarm, intercom, and clock systems will be replaced.
The facility will be provided with a fire sprinkler system.
All acoustical ceiling tile systems will be replaced.
Modification of the existing mechanical room and adjacent classroom and teacher work room is
proposed to accommodate a new electrical room.
A lift system will be installed to provide access to the stage.
Site improvement will replace a section of sanitary sewer line to correct sewage back-up issues.
A playground are will be re-graded for proper drainage.
Existing roofing will be removed and replaced with a modified bitumen built-up roof.
Architectural finishes will be patched and finished where required due to other renovation work.
Architectural modifications will be required for the new electrical room and wheelchair stage lift.
Our cost analysis indicates a potential cost for this project of $5,671,659. This is approximately
an 69% increase over the stated budget of $3,350,000, with considerable scope added for this
report. The cost analysis detail document is included at the end of this report.
Preliminary Consultation | 09.07.21 | 20
APPENDIX 01
PRELIMINARY ASSESSMENT ANALYSIS
For The
HAWTHORNE ES MAJOR BLDG SYSTEM REPLACEMENT
Atlanta, Georgia
Prepared: September 9, 2021 Revised:
CODE DESCRIPTION QTY UNIT COST TOTAL
RENOVATION SUMMARY
SCOPE ITEMS Project Costs Cost/SF
A. REPLACE HVAC SYSTEMS 1,223,275 22.90
B. REPLACE ELECTRICAL SYSTEMS 1,451,744 27.18
C. REPLACE PLUMBING FIXTURES 276,549 5.18
D. REPLACE FIRE ALARM, COMM, & CLOCK SYSTEMS 554,505 10.38
E. PROVIDE FIRE SPRINKLER SYSTEM 328,958 6.16
F. REPLACE ACOUSTICAL CEILING TILE SYSTEM 288,843 5.41
G. MODIFY ROOM LAYOUT FOR NEW ELEC RM 67,325 1.26
H. PROVIDE LIFT SYSTEM AT STAGE 50,039 0.94
I. SITE IMPROVEMENTS TO SS & PLAYGROUND 68,451 1.28
J. REPLACE ROOFING SYSTEM 1,361,969 25.50
BUILDING CONSTRUCTION COSTS $ 5,671,659 $ 106.18
53,418 SF
PROPOSED SCL CONSTRUCTION BUDGET $ 3,350,000 $ 62.71
(OVER IN RED/UNDER IN BLACK) $ (2,321,659)
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 1 of 9 9/10/2021
CODE DESCRIPTION QTY UNIT COST TOTAL
RENOVATION DETAIL
A. REPLACE HVAC SYSTEMS
A1010 Demo HVAC Systems 47,707 SF 1.50 71,561
A1011 New HVAC Sytems 47,707 SF 17.50 834,873
Replace HVAC Subtotal 906,433
GENERAL REQUIREMENTS/CONDITIONS 7.0% 63,450
FEE 5.0% 48,494
PERMITS, INSURANCES, AND BONDS 4.0% 40,735
DESIGN CONTINGENCY 10.0% 105,911
ESCALATION (5% Per Year) 5.0% 58,251
REPLACE HVAC TOTAL $ 1,223,275
COST/SF 53,418 SF $ 22.90
B. REPLACE ELECTRICAL SYSTEM
B1010 Demo Power Distribution Systems 47,707 SF 3.00 143,121
B1011 New Power Distriibution Sytems 47,707 SF 15.00 715,605
B1064 Emergency System:
B1065 150KW Generator 1 LS 107,500.00 107,500
B1066 Emergency Panels 1 LS 40,000.00 40,000
B1067 Emergency Feeder Circuits 1 LS 65,000.00 65,000
B1068 Chain Link Security Fencing 60 LF 75.00 4,500
Replace Elec Subtotal 1,075,726
GENERAL REQUIREMENTS/CONDITIONS 7.0% 75,301
FEE 5.0% 57,551
PERMITS, INSURANCES, AND BONDS 4.0% 48,343
DESIGN CONTINGENCY 10.0% 125,692
ESCALATION (5% Per Year) 5.0% 69,131
REPLACE ELEC TOTAL $ 1,451,744
COST/SF 53,418 SF $ 27.18
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 2 of 9 9/10/2021
CODE DESCRIPTION QTY UNIT COST TOTAL
C. REPLACE PLUMBING FIXTURES
C1010 Protect Existing Finishes - Allowance 370 SF 1.00 370
C1011 Demo Plumbing Fixtures 96 EA 150.00 14,400
C1012 Demo Water Heaters 2 EA 500.00 1,000
C1013 Demo Recirculating Pumps 2 EA 250.00 500
C1014 New Water Closets 40 EA 1,400.00 56,000
C1015 New Urinals 15 EA 1,500.00 22,500
C1016 New Sinks/Lavatories 30 EA 1,350.00 40,500
C1017 New Mop Sinks 5 EA 1,800.00 9,000
C1018 New Drink Fountains 12 EA 2,150.00 25,800
C1019 Gas Water Heater - 80 Gal 2 EA 10,500.00 21,000
C1020 DHW System Recirculating Pumps 2 EA 1,050.00 2,100
C1021 Patch/Repair Ceramic Tile - Allowance 1 LS 1,250.00 1,250
C1021 Dom Water - Reduced Pressure Zone - Allowance 1 EA 10,500.00 10,500
Replace Plumbing Subtotal 204,920
GENERAL REQUIREMENTS/CONDITIONS 7.0% 14,344
FEE 5.0% 10,963
PERMITS, INSURANCES, AND BONDS 4.0% 9,209
DESIGN CONTINGENCY 10.0% 23,944
ESCALATION (5% Per Year) 5.0% 13,169
REPLACE PLUMBING TOTAL $ 276,549
COST/SF 53,418 SF $ 5.18
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 3 of 9 9/10/2021
CODE DESCRIPTION QTY UNIT COST TOTAL
D. REPLACE FIRE ALARM, COMM, & CLOCK SYSTEMS
D1010 Demo Existing Fire Alarm System 53,514 SF 0.50 26,757
D1011 New Fire Alarm System 53,514 SF 3.50 187,299
D1012 Demo Existing Intercom System 53,514 SF 0.25 13,379
D1013 New Intercom System 53,514 SF 1.75 93,650
D1014 Demo Existing Clock System 53,514 SF 0.15 8,027
D1015 New Clock System 53,514 SF 1.50 80,271
D1016 Patch/Repair CMU Walls - Allowance 1 LF 750.00 750
D1016 Touch-up Paint CMU Walls - Allowance 1 LF 750.00 750
FA, Comm, Clock Subtotal 410,882
GENERAL REQUIREMENTS/CONDITIONS 7.0% 28,762
FEE 5.0% 21,982
PERMITS, INSURANCES, AND BONDS 4.0% 18,465
DESIGN CONTINGENCY 10.0% 48,009
ESCALATION (5% Per Year) 5.0% 26,405
FA, COMM, CLOCK TOTAL $ 554,505
COST/SF 53,418 SF $ 10.38
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 4 of 9 9/10/2021
CODE DESCRIPTION QTY UNIT COST TOTAL
E. PROVIDE FIRE SPRINKLER SYSTEM
E1010 New Fire Sprinkler System 53,418 SF 3.00 160,254
E1011 Demo Lanscaping/Sod/Fixtures - Allowance 1 LS 1,500.00 1,500
E1013 Fire Line - Remove Street For Tie-In 580 SF 15.00 8,700
E1014 Fire Line - 8" DIP Fire Line To Building 434 LF 75.00 32,550
E1015 Fire Line -Tap Into Existing Water Line 1 EA 2,000.00 2,000
E1016 Fire Line - New Post Indicator Valve 1 EA 2,250.00 2,250
E1017 Fire Line - New Double Detector Check System 1 EA 17,500.00 17,500
E1018 Fire Line - New Wall Mtd Fire Dept Connector 1 EA 2,500.00 2,500
E1019 Fire Line - Repair Street 580 SF 25.00 14,500
E1020 Replace Lanscaping/Sod/Fixtures - Allowance 1 LS 2,000.00 2,000
Sprinkler Subtotal 243,754
GENERAL REQUIREMENTS/CONDITIONS 7.0% 17,063
FEE 5.0% 13,041
PERMITS, INSURANCES, AND BONDS 4.0% 10,954
DESIGN CONTINGENCY 10.0% 28,481
ESCALATION (5% Per Year) 5.0% 15,665
SPRINKLER TOTAL $ 328,958
COST/SF 53,418 SF $ 6.16
F. REPLACE ACOUSTICAL CEILING TILE SYSTEM
F1010 Demo/Remove Existing ACT Ceiling System 43,516 SF 1.00 43,516
F1011 Demo/Remove Plaster Ceilings At Kitchen 1,470 SF 2.00 2,940
F1012 Bag & Tag Extg Lighting/Smk Det/Cameras - Allowance 44,985 SF 0.18 7,872
F1013 New 2x2 ACT Ceiling System/W/ Grid 43,516 SF 3.50 152,306
F1014 New 2x2 ACT Ceiling System/W/ Grid - Scrubbable 1,470 SF 3.50 5,145
F1015 Patch 8" CMU Wall - Allowance 1 LS 750.00 750
F1016 Touch-up Paint At Int Walls - Allowance 1 LS 1,500.00 1,500
ACT System Subtotal 214,029
GENERAL REQUIREMENTS/CONDITIONS 7.0% 14,982
FEE 5.0% 11,451
PERMITS, INSURANCES, AND BONDS 4.0% 9,618
DESIGN CONTINGENCY 10.0% 25,008
ESCALATION (5% Per Year) 5.0% 13,754
ACT SYSTEM TOTAL $ 288,843
COST/SF 53,418 SF $ 5.41
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 5 of 9 9/10/2021
CODE DESCRIPTION QTY UNIT COST TOTAL
G. MODIFY ROOM LAYOUT FOR NEW ELEC RM
G1010 Remove/Replace Furniture - By Owner - LS NIC NIC
G1011 Remove/Store Classroom Fixtures - Allowance 1 LS 500.00 500
G1012 Demo ACT Ceiling At Extg CR #102 - SF incl above incl above
G1013 Demo ACT Ceiling At Extg T-Work #101 - SF incl above incl above
G1014 Demo Extg VCT Flooring/Base At #102 755 SF 1.50 1,133
G1015 Demo Extg VCT Flooring/Base At #101 731 SF 1.50 1,097
G1016 Sawcut CMU/Concrete At Demo - Allowance 1 LS 750.00 750
G1017 Demo/Remove Doors And Frames - Single 2 EA 50.00 100
G1018 Demo/Remove Int CMU PartitionWalls 378 SF 2.00 756
G1019 Demo/Remove SOG At Now Plumbing - Allowance 40 SF 15.00 600
G1020 SS Line Fom Ne RR To Extg Group RR - Allowance 1 LF 1,250.00 1,250
G1021 Concrete Slab Fill-in At New RR Plumbing 25 SF 35.00 875
G1022 Patch/Prep Extg Int Concrete SOG At Demo 1,486 EA 0.10 149
G1023 Repair Extg CMU Partitions At Wall Demo 60 SF 15.00 900
G1024 Patch/Prep Extg CMU Partitions To Remain 1,970 SF 0.25 493
G1025 New 8" CMU Interior Partitions 622 SF 15.00 9,330
G1026 Grout Fill At 8" CMU Ext Wall (50%) 311 SF 3.50 1,089
G1027 HM Frm/SC Wood Door - 3-0 x 7-0 - Single 3 EA 1,150.00 3,450
G1028 HM Frm/SC Wood Door - 3-0 x 7-0 - Pair 1 EA 2,250.00 2,250
G1029 Interior Finish Hardware - Per Leaf 5 EA 550.00 2,750
G1030 Ceramic Floor Tile In RRs 90 SF 11.00 990
G1031 Ceramic Tile Base In RRs 35 SF 11.50 403
G1032 Floor Finish - VCT 1,128 SF 4.50 5,076
G1033 Floor Finish - Sealed Concrete At New Elect Rm 300 SF 4.50 1,350
G1034 Paint Existing CMU Partitions 1,970 SF 2.00 3,940
G1035 Paint New CMU Partitions 1,037 SF 2.00 2,074
G1036 Paint Interior Doors/Frames 8 EA 50.00 400
G1037 New ACT Ceiling At New Classrooms - SF incl above incl above
G1038 New ACT Ceiling At New Teacher Work #101 - SF incl above incl above
G1039 New PL Base Cabinets W/ PL Countertop 6 LF 225.00 1,350
G1040 New Sink Fixture - Complete 1 LS 2,800.00 2,800
G1041 New Toilet Fixture - Complete 1 LS 2,600.00 2,600
G1042 Handicap Grab Bars 2 EA 75.00 150
G1043 Toilet Tissue Holder - Double Roll 1 EA 65.00 65
G1044 Toilet Seat Cover Dispenser 1 EA 85.00 85
G1045 Sanitary Napkin Disposal 1 EA 110.00 110
G1046 Coat/Towel Hooks 1 EA 35.00 35
G1047 Framed Mirror - 2'-0W x 3'-6"H 1 EA 135.00 135
G1048 Hand Soap Dispenser 1 EA 55.00 55
G1049 Paper Towel Disp/Waste Receptacle 1 EA 300.00 300
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 6 of 9 9/10/2021
CODE DESCRIPTION QTY UNIT COST TOTAL
G1050 Replace Existing Classroom Fixtures - Allowance 1 LS 500.00 500
Modify Rooms Subtotal 49,887
GENERAL REQUIREMENTS/CONDITIONS 7.0% 3,492
FEE 5.0% 2,669
PERMITS, INSURANCES, AND BONDS 4.0% 2,242
DESIGN CONTINGENCY 10.0% 5,829
ESCALATION (5% Per Year) 5.0% 3,206
MODIFY ROOMS TOTAL $ 67,325
COST/SF 53,418 SF $ 1.26
H. PROVIDE LIFT SYSTEM AT STAGE
H1010 Remove/Replace Furniture - By Owner - LS NIC NIC
H1011 Demo ACT Ceiling At Cafeteria - SF incl above incl above
H1012 Demo Extg VCT Flooring/Base Stor Rm 54 SF 1.50 81
H1013 Sawcut CMU/Concrete At Demo - Allowance 1 LS 750.00 750
H1014 Demo/Remove Doors And Frames - Single 1 SF 50.00 50
H1015 Demo/Remove Int GWB Partition Walls At Stor Rm 216 SF 2.50 540
H1016 Demo/Reomve CMU Wall At Stage 81 SF 7.50 608
H1017 Patch/Prep Extg Int Concrete SOG At Demo 54 SF 4.00 216
H1018 Patch/Prep Extg CMU Partitions To Remain 377 SF 1.00 377
H1019 Modify/Tooth New CMU to Extg 41 SF 15.00 615
H1020 New 8" CMU Interior Partitions 216 SF 17.50 3,780
H1021 Grout Fill At 8" CMU Ext Wall (50%) 108 SF 3.50 378
H1022 New GWB Interior Partitions 42 SF 15.00 630
H1023 New GWB Bulkhead 35 SF 8.50 298
H1024 HM Frm/SC Wood Door - 3-0 x 7-0 - Single 1 EA 1,150.00 1,150
H1025 Interior Finish Hardware - Per Leaf 1 EA 550.00 550
H1026 Floor Finish - VCT 45 SF 4.50 203
H1027 Floor Finish - Sealed Concrete 24 SF 5.00 120
H1028 Paint Existing CMU Partitions 377 SF 2.50 943
H1029 Paint New CMU Partitions 448 SF 2.50 1,120
H1030 Paint GWB Interior Partitions 42 SF 2.00 84
H1031 Paint GWB Bulkhead 15 SF 4.00 60
H1032 Paint Interior Doors/Frames 1 EA 50.00 50
H1033 New ACT Ceiling At New Classrooms 36 SF 4.50 162
H1027 HDCP Lift At Corridor 1 EA 22,500 22,500
H1028 Wheelchair Lift Power Circuit - Complete 1 LS 1,815.00 1,815.00
Provide Lift Subtotal 37,078
GENERAL REQUIREMENTS/CONDITIONS 7.0% 2,595
FEE 5.0% 1,984
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 7 of 9 9/10/2021
CODE DESCRIPTION QTY UNIT COST TOTAL
PERMITS, INSURANCES, AND BONDS 4.0% 1,666
DESIGN CONTINGENCY 10.0% 4,332
ESCALATION (5% Per Year) 5.0% 2,383
PROVIDE LIFT TOTAL $ 50,039
COST/SF 53,418 SF $ 0.94
I. SITE IMPROVEMENTS TO SANITARY SEWER & PLAYGROUND
Sanitary Sewer Main
I1010 Demo Lanscaping/Sod/Fixtures - Allowance 1 LS 500.00 500
I1011 Remove Street For Tie-In 32 SF 100.00 3,200
I1012 Demo/Remove 10" Sanitary Sewer Line 104 LF 20.00 2,080
I1013 New 10" Sanitary Sewer Line 104 EA 65.00 6,760
I1014 Clean Out Exisiting SS Manhole - Allowance 2 EA 1,000.00 2,000
I1015 Scope Extg SS Sewer Line To Bldg - Allowance 1 EA 5,000.00 5,000
I1016 Repair Street Paving 32 SF 75.00 2,400
I1017 Replace Lanscaping/Sod/Fixtures - Allowance 1 LS 1,500.00 1,500
I1018 Miscellaneous/Unforseen Demo And/Or Replace 1 LS 2,500.00 2,500
Subtotal : $ 25,940
Playground Drainage -
I1020 Demo/Remove Existing Playgound Rubber Mulch 1,870 SF 0.50 935
I1021 Demo/Remove Existing Sod/Topsoil 2,250 SF 0.75 1,688
I1022 Clean Existing Yard Drains - Allowance 1 LS 750.00 750
I1023 Add Yard Drains At Playground - Allowance 2 EA 2,500.00 5,000
I1024 Tie-in To Extg Storm Drains 2 EA 1,500.00 3,000
I1025 Re-grade Playground At New Drains - Allowance 4,120 SF 0.25 1,030
I1026 New Modular Plastic Curbing At Playground 172 LF 7.50 1,290
I1027 Rubber Mulch 23 CY 300.00 6,900
I1028 Landscping - Sod 2,252 SF 0.75 1,689
I1029 Miscellaneous/Unforseen Demo And/Or Replace 1 SF 2,500.00 2,500
Subtotal : $ 23,847
Site Improvements Subtotal 50,722
GENERAL REQUIREMENTS/CONDITIONS 7.0% 3,551
FEE 5.0% 2,714
PERMITS, INSURANCES, AND BONDS 4.0% 2,279
DESIGN CONTINGENCY 10.0% 5,927
ESCALATION (5% Per Year) 5.0% 3,260
SITE IMPROVEMENTS TOTAL $ 68,451
COST/SF 53,418 SF $ 1.28
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 8 of 9 9/10/2021
CODE DESCRIPTION QTY UNIT COST TOTAL
J. REPLACE ROOFING SYSTEM
J1010 Demo/Remove Modified Bitumous Roofing System 47,705 SF 2.50 119,263
J1011 Demo/Remove Metal Parapet Coping 2,296 LF 1.50 3,444
J1012 New Modified Bitumen Roof System (Gym NIC) 47,705 SF 17.50 834,838
J1013 New Metal Parapet Coping 2,296 SF 22.50 51,660
Roof System Subtotal 1,009,204
GENERAL REQUIREMENTS/CONDITIONS 7.0% 70,644
FEE 5.0% 53,992
PERMITS, INSURANCES, AND BONDS 4.0% 45,354
DESIGN CONTINGENCY 10.0% 117,919
ESCALATION (5% Per Year) 5.0% 64,856
ROOF SYSTEM TOTAL $ 1,361,969
COST/SF 53,418 SF $ 25.50
Hawthorthe ES Major Bldg Systems Replacement ADE Construction Consultants, Inc.
Preliminary Assessment Analysis Page 9 of 9 9/10/2021