Addendum #1 0735 C – Acoma Parking Garage April 26, 2012 1. Precast columns shown at: A-10,A-11,A-1.5,A.2-1,A.2-1.5,D-1,D-2,D-3 are not doing anything. There are solid full height bearing walls at these locations. Are these columns necessary? There are not full height bearing walls at these locations. They will be columns, spandrals, and infill panels. 2. Probably too early to ask about this, but the man door on the south elevations on the west edge near the stair tower may have to move to the east to get the doorway out of the load path coming down from the spandrel bearing. Also, the walls stacked at this location will probably have to have a monolithic pilaster cast onto the back of the panel to emulate a column to carry the spandrel load. Location of opening in south wall (no door) will accommodate structure. 3. Panel finishes: keynotes on sheet A-300- 3.04, 3.07, 3.12 gray panel with brick veneer. On the other parking structure, the brick veneer panels had the architectural concrete behind the brick, so the mortar color was the beige concrete. I believe this panel should be thin brick veneer with architectural concrete face mix/mortar color and structural gray back up. This is correct. 4. Structural gray panel- On the other parking structure (and on the east and west sides of this garage), the sill is the beige acid etch. I believe this panel base should also be the beige acid etch. Example- on the west elevation at grid 4 we should not have gray panel base coming in from the left butting into beige on the right. Correct. ALL Exposed precast on exterior should be beige acid etch. 5. We were informed that DHHA has their list of prequalified subcontractors. Are these one and the same as the City and County of Denver Certified M/WBE firms? I have been attempting to obtain this list from the footnote at the bottom of the website that says M/WBE with no success. Can you please forward that list to me or direct me to the right website to obtain this listing? We do not have a list of pre-qualified subcontractors. We use the City’s MWBE list which you can access on the City’s Site. 6. Please clarify the application of the 10% M/WBE calculation. Is this 10% of total contract value or 10% of the direct cost of the work? The 10% of the GMP. 7. An allowance of $60,000 shall be included in the GMP for the large DHHA signature sign located on the North face. 8. See attachment 012100. General Please confirm that though the CM/GC will pay for permit and plan check fees, they are to be reimbursed directly and not included in the GMP amount. Please advise. Confirmed, Denver Health will reimburse direct to Firm. Do not include in GMP General Please confirm that we are to include City of Denver tax of 3.62% only and no State or RTD taxes are to be included. Please advise. Confirmed. City tax is applicable; no other tax should be billed. General Please confirm that Davis-Bacon/prevailing wages for city of Denver are required for this project. Please advise. This is a prevailing wage project utilizing the City and County wage rates. PW package is attached. What are the regular working hours? Are there any noise restrictions? Please advise. Sun up to Sundown Will the Owner provide a nearby location for construction parking? Please advise. No owner provided parking. General General General Please confirm the address that we need to deliver the hard copies of the proposal to as it is not listed in the RFP. Please advise. 777 Delaware Street, Attn: Tom Sangster, Denver CO 80204 Is there a soils report available at this time? Please advise. Yes, Attached General Agenda Item 13 RFP Page 2 RFP Page 3 Please confirm if a preconstruction services team member is required at the interview; as it is not listed in this item. Please advise. Attendance of preconstruction services personnel not required This page calls out for a Construction Phase Fee. The definition states that this is to include profit. I do not see a line on the Proposal for Construction Fee. Are we to include the construction fee in the Cost of Construction portion of the proposal? Please advise. Yes please This page calls for us to include providing and maintaining site services including lighting and power. Are we to include the monthly utility costs for the building to house the temporary construction office? If so; what amount are we to carry per month? Please advise. Utilities for the construction office at 601 Broadway will be paid for by DHHA. If not used by CM, then the CM pays for utilities. 12200 Unit Prices 1.2B This section states that there are unit prices included at the end of this section. There are no unit prices listed. Please confirm if unit prices are required? Unit prices will be required after bid to sub-contractors. C-101 This sheet shows a new drive between Bannock Street and Acoma Street. I am assuming this is to be asphalt paving. If so; what design shall we include for this paving? Please advise. 7" full depth asphalt P100 The underground piping is not shown on this document. Is there an updated plan showing all of the underground piping? Please advise. Not at this time. The only significant piping not shown under the building at this point is the replacement sanitary sewer line connecting the existing garage to the sanitary main in 7th Avenue. E-100 Detail Note 2 This note calls for 13 each new twist lock receptacles for 13 new ambulance parking spaces in the existing Bannock parking garage. Are we to assume there is no other work required for these new spaces as none is shown? Please advise. To accommodate the (13) new receptacles, a sub panel will need to be set in the electrical room of the existing Bannock Garage. The sub panel will be fed out of an existing 208V 3 phase panel board in that same room. The contractor will be required to provide and install the sub-panel, connection as well as the (13) receptacles and the conduit and wire back to the panel for a complete and operational system. If you need additional information, please let me know. All distribution for this work will be fed from the existing Bannock Garage. E-100 Detail Note 1 E-100 Detail Note 1 This note calls to relocate the existing generator. What size is the existing generator? Please advise. The existing generator is rated at 250 kW. This note calls for a new belly tank. Is it to be a natural gas belly tank or a diesel belly tank? Please advise. E-100 Detail Note 1 The belly tank shall be for diesel fuel. This note calls for a new belly tank. Is it to be for 8 hours, 24 hours or 48 hours of fuel? Please advise. E-101 Detail Note 1 E-201 One-Line Diagram E-201 E-201 One-Line Diagram One-Line Diagram 200-300 Gallons This note calls for a motorized rolling gate for Coroner Parking for 7 parking spaces. There is nothing shown in the Architectural drawings for this work. Please clarify scope/limits required for the new motorized rolling gate. This has been removed from the project. The one-line diagram shows a new panel serving vehicle charging and heating systems. Are we to provide electric vehicle charging stations for the new garage? Or is this for the new 13 ambulance spaces in the existing garage only? If at the new garage; for how may parking spaces? Please advise. This is incorrectly noted. There are not any charging stations in the new garage. This panel is for heating loads within the garage. The one-line diagram shows a new panel serving vehicle charging and heating systems. If we are to provide electric vehicle charging stations; what brand are we to include? What size are they to be? Are they to be 7.2KW? Please advise. This is incorrectly noted. There are not any charging stations in the new garage. This panel is for heating loads within the garage. The one-line diagram shows a new panel serving vehicle charging and heating systems. If we are to provide electric vehicle charging stations; will they require a tele/data line in addition to power for each location? Please advise. This is incorrectly noted. There are not any charging stations in the new garage. This panel is for heating loads within the garage. Attachments: Prevailing Wage Rate sheets CTC Soils Report Specification section 012100