Y1da Expand Dallas Specialty Primary Care Clinic 549 152 Grand Prairie Tx

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The Purpose Of This Project Is For Contractor To Provide Design And Construction Of The Legal Removal Of Hazardous Materials As Identified In The Evaluation Report Geotechnical Report Verify That The Current Property Survey Is Accurate Job Trailer S With Power Setting Up And Securing The Staging Area And The Subcontractor Parking Area And All Design Related Elements Phasing As Put Forth By His A E Design Team New Work Will Include But Not Be Limited To The Following A New Structural System That Ties Back Into The Existing System The New System Will Include A New Concrete Foundation New Structural Steel Concrete Columns New Precast Concrete Parapets To Match The Existing New Membrane Roof System Including Roof Drains Overflow Drains Lighting Protection Stainless Steel Flashing And Filling In The Existing Courtyard Opening In The Roof All Interior Wayfinding Signage Shall Be Provided And Installed By The General Contractor A New Interior Roof Ladder Hatch Is To Be Provided In The Area Of The Enclosed Loading Dock In Addition New Mechanical Electrical Plumbing Fire Sprinkler And Life Safety Systems And Information Technology Systems Will Be Required New Security Fencing Bollards Blast Resistant Glass Tempered Glass Etc Will Be Required To Meet The Minimum Requirements For Force Protection As Established By The Veterans Affairs Va The Existing Building Is Located At 2737 Sherman Road In Grand Prairie Texas It Is On A 5 58 Acre Site And The Single Story 22 745 Square Foot Building Is Constructed Of Brick And Concrete The Sf Does Not Include The Basement Space The Building Has A Partial Full Height Mechanical Basement The Building Was Constructed In 1972 And The Interior Was Remodeled In 2008 The Interior Of The Building Has A 2 Hour Fire Wall Running East To West And The Southern Side Of The Building Is Currently Occupied The Building Does Not Have A Fire Sprinkler System Please Note That The Building Will Remain Occupied During The Anticipated Multiple Phases Of Construction A Portion Of The Building Is Served By Three Chilled Water Multi Zone Air Handling Units Ahus Located In The Crawl Space Of The Building Nine Chilled Water Fan Coil Units And Fcus Located Within And Serving The Perimeter Heating Is Provided By Electric Heat Strips At Each Zone The Existing Chilled Water System Consists Of One 70 Ton Air Cooled Chiller Is Located On The West End Of The Building One Primary Pump Located On The Underside Of The Chiller And Two Nonoperational Secondary Pumps Are In The Lower Portion Of The Mechanical Room Existing Building Controls Are Pneumatic At The Time Of Observation There Was An Abandoned Non Operational Split System Chiller Located In The Lower Level Of The Engineering Space Along With The Electrical Switch Board The Remote Condensing Unit For The Chiller Is Located To The Rear Of The Building West Side Across Drive Area Next To Main Transformer The Existing Air Handling Units Are In The Crawl Space Most Of The Systems Are Constant Volume Multi Zone Systems With Electric Re Heat Temperature Control No Control Or Balancing Valves Were Found On The Units As Such The Only Means Of Balancing Is To Throttle The System With Isolation Valves In Addition There Are Some Single Zone Systems With The Same Air Temperature Controls That Are In The Crawl Space On The South Side Of The Building There Are Several Fan Coils On The Exterior Wall Zones Located In The Plenum The Existing Electrical Power Distribution Is A 2 000A 208Y 120V 3 Phase 4 Wire System The Main Switch Board Is A Four Section 2 000 Amp With Ground Fault Protection Located In The Lower Area Of The Mechanical Room Current Distribution Is Set Up To Favor The Separation Of The North And South Sides Of The Building Allowing For The Occupation Of The Southern Part The Building While The Northern Portion Is Under Construction This Does Not Guarantee The Complete Separation Of The Two Sides As There May Be Single Circuits That Cross Where The New 2 Hour Wall Any Circuits That Cross The 2 Hr Construction Barrier That Need To Remain In Service Shall Be Relocated To The Active Panels On The South Side Of The Building Circuits Fed From The South Side Crossing The Barrier Shall Be Abandoned In Place And Disconnected From The Servicing Panels The Switch Board Is In The Mechanical Room On The West Side Of The Building And Appeared To Be Original To The Building The Switch Board Has Been Tested And The Necessary Repairs Required To Keep In Service During Construction Have Been Completed It Is Anticipated That This Equipment Will Adequately Serve The South Half Of The Building During The Construction Phase The Building Is Serviced By An Existing 3 Domestic Water Service The Main Enters The Building On The East Side In The Crawl Space Through A New Double Check Backflow Preventer The Main Service Branches And Serves The Building Through A North And South Side Main And Serves The Building From Under Floor This Main Service Will Remain In Service During Construction The Existing Sanitary System Is Satisfactory On The South Side Of The Building And Able To Be Used During The Construction Period With Minor Repairs The Existing Sanitary Main Is Routed On The East Side Of The Building Existing Plumbing Fixtures Are Adequate To Serve Through The Construction Period The Existing Ejector Pump Shall Be Evaluated For Required Repairs Sanitary And Water Lines Systems Will Be Removed As Construction Progresses

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