Marshall Truck Station Laboratory Addition Project No. TZ-91523 MnDOT 13-6574 ADDENDUM NUMBER 2 DATED September 19, 2013 Marshall Truck Station Laboratory Addition Project No. TZ-91523 MnDOT 13-6574 Architect: TSP, Inc. 104 West Redwood Street Marshall MN 56258 1.1 NOTICE TO RESPONDERS A. This Addendum is issued pursuant to the Instructions to Responders and Conditions of the Contract. This Addendum serves to clarify, revise, and supersede information in the Project Manual, Drawings, and previously issued Addenda. Portions of the Addendum affecting the Contract Documents will be incorporated into the Contract by enumeration of the Addendum in the Owner/Contractor Agreement. B. The Responder shall acknowledge receipt of this Addendum in the appropriate space on the Response Form. C. The date for receipt of bids is unchanged by this Addendum, at same time and location. 1. Bid Date: October 1, 2013 at 2:00 P.M. Mechanical/Electrical. October 10, 2013 at 2:00 P.M. Prime. 1.2 ATTACHMENTS A. This Addendum includes the following attached Documents and Specification Sections: 1. Document, MnDOT Marshall TSP Pre-Bid Meeting Notes dated September 18, 2013, (new). 2. Section 012300 Alternates 3.1 SCHEDULE OF ALTERNATES; A. Alternate No. 1 Precast Concrete Monument Sign All labor, materials and equipment to provide and install Precast Concrete Monument Sign as indicated on drawing A-1dated September 18, 2013, (new). ADDENDUM NUMBER 2 PAGE - 1
B. This Addendum includes the following attached Sheets: Marshall Truck Station Laboratory Addition Project No. TZ-91523 MnDOT 13-6574 1. General Sheet TSP Pre-Bid Meeting Notes dated September 18, 2013,(new). 2. Architectural Sheet A-1Precast Concrete Monument Sign dated September 18, 2013, (new). 1.3 REVISIONS TO DIVISION 01 GENERAL REQUIREMENTS A. Specification Section 012300 Alternates (not reissued). 1. Paragraph 3.1.A.: All labor, materials and equipment to provide and install Precast Concrete Monument Sign as indicated on drawing A-1 dated September 18, 2013. 1.4 REVISIONS TO DRAWING SHEETS A. Sheet PP100 Underfloor Plumbing Plan (not reissued). 1. Keynote 11: Delete Keynote 11 in its entirety. 2. Drawing 1/PP100: Replace Keynote 11 with Keynote 2. B. Sheet ME601 Mechanical Schedules (not reissued). 1. Plumbing Fixture Schedule, FD-1 Floor Drain: a. Change the waste (W) piping connection from 3 to 2. b. Under Manufacturers Description add the following: 6 diameter strainer. 1.5 MANUFACTURERS APPROVED TO BID A. Specification Section 084113, Storefront Framing 1. Paragraph 2.3.A. Framing Members a. Manko 2450 Series B. Specification Section 089119, Fixed Louvers 1. Paragraph 2.2.A.1, Fixed Extruded Aluminum Louvers a. Nailor Industries. C. Specification Section 223400, Fuel-Fired Domestic Water Heaters 1. Paragraph 2.1.A.1, Commercial, Gas-Fired, High Efficiency, Storage, Domestic Water Heaters a. Bradford White. b. Laars. D. Specification Section 230515, Variable Frequency Drives for Mechanical Equipment 1. Paragraph 2.1.A, Manufactured Units a. Square D. E. Specification Section 232123, Hydronic Pumps 1. Paragraph 2.1.A, Close-Coupled, In-Line Centrifugal Pumps a. Grundfos. ADDENDUM NUMBER 2 PAGE - 2
F. Specification Section 233713, Diffusers, Registers and Grilles 1. Paragraph 2.1.A.1, Ceiling Diffusers a. Nailor Industries. 2. Paragraph 2.2.A.1, Displacement Ventilation Diffusers a. Nailor Industries. 3. Paragraph 2.3.A.1, Registers and Grilles a. Nailor Industries. 4. Paragraph 2.1.B.1, Fixed Face Grille a. Nailor Industries. G. Specification Section 238316, Radiant Heating Hydronic Piping 1. Paragraph 2.1.A, Pex Pipe and Fittings a. Mr. Pex. H. Drawing Sheet ME601, Mechanical Schedules 1. Finned Tube Radiation Schedule a. Rittling. I. Drawing Sheet ME602, Mechanical Schedules 1. Ceiling Fan Schedule a. Leading Edge. Marshall Truck Station Laboratory Addition Project No. TZ-91523 MnDOT 13-6574 END OF ADDENDUM 2. ADDENDUM NUMBER 2 PAGE - 3
BLACK LETTERING BOTH SIDES MnDOT LOGO 30". END ELEV 1" 2 3 A-1 15". ORIGINAL 8.5 x 11 FORMAT 1' - 0" 4' - 0" 4' - 0" 2' - 0" GRADE 12". 1" 2"1" CAP DETAIL 1" = 1'-0" PRECAST CAP PRECAST DESIGNER TO DESIGN CONNECTION 6" PRECAST PLANK BACK TO BACK RAKE FLUTES 20' - 0" 3' - 0" 14' - 0" 3' - 0" MINNESOTA DEPARTMENT OF TRANSPORTATION MINNESOTA STATE PATROL CONCRETE FOOTING W/(5) #5 LONGITUDINAL AND #5 AT 24" TRANSVERSE 1 SIGN ELEVATION 1/4" = 1'-0" 3/4" CAMFER 2 ROD STOCK AND SEALANT A-1 2 3 A-1 EDGE DETAIL 1" = 1'-0" 9 " HIGH X 1" THICK STUD MOUNTED CAST ALUMINUM LETTERS IN TIMES NEW ROMAN FONT PRECAST ACID ETCHED FINISH MAROON LETTERING BOTH SIDES PRECAST TO FOOTING RAKED FINISH ABOVE GRADE TO MATCH BUILDING PRECAST SUPPLIER TO DESIGN CONNECTION TO PROVIDE FOR CANTILEVER ACTION OF SIGN PRECAST PANEL RAKED FINISH PRECAST PANEL SMOOTH FINISH C:\Users\olsenbm\Documents\08120953MnDOT A12.1_Central_olsenbm.rvt 08120953 BMO PHB PROJECT # PROJECT TITLE DRAWN CHECKED DATE MnDOT Marshall Truck Station Laboratory Addition REF SHEET # ADD#/ASI#/CCD#/PR# SHEET ID# A-1 NA 1800 E. College Drive Marshall, Minnesota 9/18/2013 4:27:24 PM
Date: September 18, 2013 104 West Redwood Marshall, MN 56258-1853 phone (507) 537-1511 fax (507) 537-1512 www.teamtsp.com Architecture Engineering Construction Project: Marshall Laboratory Addition Project TZ-91523 MnDOT 13-6574 Re: Pre-Bid Meeting on September 17, 2013 Project Overview A. Specifications: 1. Refer to Section 00 73 46 for schedule of prevailing wage rates. 2. Refer to Specification-Volume 1 for reports of asbestos assessment, environmental investigation and geotechnical exploration /review. B. Civil Work: 1. Refer to Civil Drawings and Specifications for SWPPP requirements (erosion prevention and sediment control). 2. Site demolition includes but is not limited to curb/gutter, asphalt paving, sidewalks, tree stumps, gas service, trenching for sanitary & storm sewer and general clearing as required for new construction. 3. Civil work includes but is not limited to re-grading, new curb/gutter, asphalt and concrete paving, walks, storm & sanitary piping, finish grading, seeding of lawn areas and rock mulch. C. Existing Building /Selective Demolition: 1. 30 x 100 area of floor slab removed and replaced in existing garage, including new in-floor heat system. 2. Two (2) rooms in northwest corner of existing garage to be removed. 3. Remove two (2) door units and four (4) windows in existing west exterior wall and salvaged for release to Owner. Resulting openings to be in-filled with masonry. 4. New door openings cut through the west precast wall of the existing garage. D. Building Structure: 1. Addition is structurally isolated from existing building. 2. Insulated precast wall panels bear on perimeter spread footings. 3. Two (2) mezzanine areas with hollow core planks and concrete topping; planks to be set after masonry walls are in-place and shoring required until topping is cured. 4. Steel roof trusses and metal deck with ballasted single ply roofing system. 5. Three (3) skylights on roof. 5. Aluminum exterior door units and hollow metal interior door units. 6. 2 hour fire rated wall at the existing building - addition connection. 7. Exposed structure, ductwork and electrical to be painted in interior spaces. Marshalltown, IA Marshall, MN Minneapolis, MN Rochester, MN Omaha, NE Rapid City, SD Sioux Falls, SD Sheridan, WY Des Moines, IA
E. Mechanical /Plumbing Work: 1. Heating water temperatures for coil design: 130F EWT and 100F LWT. 2. Domestic cold water is being extended from the existing domestic water service. 3. Domestic hot water provided by a new water heater. 4. Flammable waste trap for drainage in the garage areas. 5. Storm water piping to extend underground and discharge in the Hwy. 19 ditch. 6. A portion of the existing storm water piping will be modified. 7. Trench drains in garages. 8. Relocated emergency shower and eye wash. 9. Hose bibs and compressed air outlets in the garages. 10. Compressed air is being piped from the existing compressed air system. 11. Special water distribution system in the Mist Room along with heating inside the room. Both have specific control systems for operation. 12. 2 hour fire rated wall at the existing building : addition connection 13. Fire sprinkler system not required. 14. 30 x 100 area of the existing garage will be provided with in-floor heating system and served by the new boiler system. 15. A new hot water boiler system will provide heating water for all new equipment that uses heating water. 16. Garage 100 heating and ventilating will be provided by a unit heater and exhaust fan. 17. Garage 108 heating and ventilating will be provided by a unit heater, make-up air unit and exhaust fan. 18. Both garages equipped with ceiling fans. 19. The Lab 105 HVAC system will be displacement ventilation type with supply air low in the space, including an air handling unit, exhaust fans and dust collector system. The controls are specific to the operation of the Lab and its equipment. There is also requirement for life safety and fire protection purposes with the Lab maintained under positive pressure relative to all adjacent spaces at all times, both occupied and unoccupied. 20. The building automation system (BAS) has very specific requirements with regard to type of controls, who can provide the controls and integration with the building systems and equipment. F. Electrical Work: 1. Provide new normal and emergency panelboards, serving all loads of the addition. New panelboards shall be fed from the existing normal main distribution system and the existing emergency panel. 2. Electrical Contractor shall perform a rebalance of the existing emergency panel.
3. New low voltage data rack shall be provided in the addition. This rack shall be tied into the existing main data closet via a new fiber optic cable routed through the existing building. 4. New security devices (card readers, cameras, door switches) shall be provided and tied back into the existing building security systems. 5. New fire alarm system shall be provided for shut down of air handling units. 6. Provide electrical connections to new mechanical equipment. 7. Provide electrical connections to motors and Owner s lab equipment. 8. Provide new lighting throughout the addition. TSP, Inc. Ronald D. Halgerson, AIA