A005.pdf

HSCG82-12-B-PMV026

AMENDMENT 005

CIVIL / SITE WORK:

QUESTION: Per drawing C-0l, General Notes #4, please provide the exact location of the underground petroleum tank and verify the tank associated piping has been removed or does it still remain in the ground?

ANSWER: General note #4 on C-01 refers to the possibility of encountering petroleum contaminated soils, there are no existing gas tanks or lines as they were previously removed as noted.

QUESTION: Can the existing utilities to be removed as identified on plan sheet C-04 be capped instead of removing back to main lines?

ANSWER: Recommendation is to cap the existing utilities as close as possible to the originating main utility line.

This is to avoid future leaks in the capped line that may compromise the structures constructed above. Additionally, unused services may interfere with construction of future underground facilities.

QUESTION: Plan sheet C-0l (demolition plan) shows concrete slab and foundation pad to be removed and does not indicate there is any structures on this pad. However, during our site visit we identified there is an existing structure on this pad. Please refer to plan sheet C-0l, Grid lines 2/ C next to the CMU walls to be removed for location. Please advise if this structure is also to be removed?

ANSWER: Coast Guard Sector St Petersburg has reported they would salvage and relocate all structures indicated on concrete slabs to be removed. The only buildings to be demolished are the metal Carpentry Shop and the adjacent wood building to its immediate northeast.

QUESTION: During the site visit it was identified there are existing hazardous material containers next to the existing building to remain at the northwest corner of the project area that lie within our scope of work area. Are these containers to be relocated by the Coast Guard prior to the commencement of work?

ANSWER: Hazardous material containers shall be removed by the Coast Guard prior to Notice to Proceed.

QUESTION: Can we discharge dewatering into S-5 Existing Catch Basin or will an intricate dewatering system need to be constructed (such as a frag tank) to remove all silt and debris to pump water into the Gulf?

ANSWER: Due to proximity of this site to the Bay, adequate erosion protection measures must be implemented to avoid any discharge of sedimentation and or turbid waters. Although a frag tank is not required, it is the responsibility of the contractor to implement best management practices to avoid any impacts to existing culverts downstream and or discharge of sediments and or turbid waters into the Bay.

QUESTION: How thick is the existing concrete from MH #S-4 to the existing inlet S-5?

ANSWER: Thickness of existing concrete not known, not shown on surveys that were made available.

QUESTION: Can the existing lime rock be reused in the new pavement base?

ANSWER: No. Depth and quality of the existing lime rock base is not known.

QUESTION: Can the existing lime rock remain in the bldg. pad?

ANSWER: If the existing lime rock compaction meets the required sub-grade compaction and elevation for the slab, it can remain in-place.

QUESTION: As identified on plan sheets C-03 and C-04, we are required to cut the existing concrete pad with ribbon curb to install the new 18" RCP pipe and storm manhole #4 going into S-5. Will we be able to patch the concrete pad the width of the trench or will we need to restore the entire square pad?

ANSWER: Patch concrete slab per detail 5/C-05 as indicated on sheets C-03 and C-04.

QUESTION: Please provide a proposed cross-over detail where the new 18" RCP sanitary sewer line, crosses the existing sanitary sewer, electrical and communication banks?

ANSWER: The new 18" RCP is a storm water drain not a sanitary sewer. The note on the drawing requires, “Elevation of the existing sewer service line at this location is not known. Contractor to verify sewer invert elevation and notify COR of any conflict between exist sewer and proposed storm line." The same note shall apply at the existing communication and electrical duct banks.

QUESTION: Please advice if all structures to be demolished will be emptied of all Coast Guard contents prior to demolition (shelving, materials, tools, storage items, etc ...)?

ANSWER: All buildings shall be empty of Coast Guard contents prior to Notice to Proceed.

ARCHITECTURAL:

QUESTION: Finish floor of new building as shown plan sheet C-03 identifies a finish floor elevation of 9.60 however, plan sheet A-07 shows finish floor elevation of 8.60. Please confirm finish floor elevation of 9.60 is correct?

ANSWER: Yes, Top of slab to be 9.60.

QUESTION: According to the two wall cut details 2/ A09 and 3/ A09 as identified on plan sheet A-02, this wall receives 2-1/2" Shaft Wall but it appears with no rating. Does this need to be Shaft Wall if no rating is required?

Can it be similar to detail 2/A08 South Wall? (See attached detail sketch for clarification).

ANSWER: No need for shaft wall construction on the storage side of the south exterior wall, use plywood wainscot, similar to wall along grid line #1, section 1/A-08. No need for shaft wall construction on the office side of the south exterior wall, can use furring strips and gyp bd construction similar to wall along grid line #3, section 1/A- 08.

QUESTION: Certain walls shown on plan sheet A-08 call for the insulation to be R-19 which is a 6" product. The studs as shown are required to be 3-5/8". Does the stud width need to be increased to match the insulation or vice versa? (See attached detail sketch for clarification).

ANSWER: As indicated in the Drawings R-19 shall be revised to R-11 to fit within the 3 5/8" metal stud wall.

QUESTION: Plans call for the Fire Alarm devices to be tied into another Fire Panel. This Fire Panel is not shown on any of the sheets. Where is this Fire Panel and what manufacture is it?

ANSWER: Reference Specification Section 28-31-64.00-10 Fire Detection and Alarm System, Addressable and Drawing E-05 Fire Alarm System Riser Diagram. Provide the following basic Small Addressable Fire Alarm System, all self-contained in the WPB Storage and Gym Building. Provide a Fire Alarm Control Panel (FACP) installed in the in the Telecommunication Closet to power and monitor all of the alarm initiation and signal appliance devices in the building. The fire alarm provision in the WPB Storage and Gym Building shall be complete in all respects and shall be “Turn-Key”. Provide in the Main FACP of the WPB Storage and Gym Building one set of dry alarm and system trouble contacts which can be used at a later date for connection into the existing Silent Knight #IFP-100 Administration Building Main FACP.

Delete connection into a remote system. Provide self-contained FACP System.

QUESTION: With regard to the Fire Alarm System, is there any explosion proof devices needed for the service bay? What is the classification for this area?

ANSWER: No Explosion Proof devices required in the Storage Bays. Area Classification is “Storage S-1” as shown on sheet LS-02. They are not Service Bays. The storage is dry storage, spare parts, boxed materials associated with the associated CG Cutter. Most material can burn. There are no hazardous or flammable materials permitted to be stored in the bays.

Typical Cutter Storage Bay.

QUESTION: With regard to the Fire Alarm System. Is a full raceway or a conduit path required for the Fire Alarm cable?

ANSWER: The system Conduit and Wiring is specified in Section 28 31 64.00 10, page 10, Article 2.9.1 and

2.9.2. “System field wiring shall be solid copper and installed in metallic conduit or electrical metallic tubing, except the rigid plastic conduit may be used under slab-on-grade.”

QUESTION: On drawings E-02, note 37 P, states to furnish and install extra exit signs at locations selected in the field by the COTR. In order to provide competitive pricing we need to know a number of extra exit sign that will be required, please advice?

ANSWER: RE: Drawing E-02, Note #37, P. Delete this note in its entirety. No extra illuminated exit sign lights are required. Refer to drawing E-03 for quantity of exist lights.

QUESTION: On drawing E-03, please confirm that fixture type D1 shown on lighting plan and not shown on fixture schedule is a type D fixture with a battery pack. Electrical fixture D1 is shown on E-03 floor plan but not listed in the fixture schedule. Please advice.

ANSWER: Drawing E-03, exterior CP Wall Pack indicated on plan as Type “D” and “D1”, indicated on Fixture Schedule as Type “D”. No battery EM pack is required to be furnished on the nine (9) exterior “D”, “D1” CF light fixtures indicated on plan. Furnish all as Type “D” on the fixture schedule.

QUESTION: On page E-05 shows the fire alarm riser tying into the existing fire alarm system. During the site visit we were shown the closet fire alarm panel and were told that the existing panel is self contained and that it does not send a signal outside the building it serves. Is this the fire alarm panel we are to tie into?

ANSWER: Reference Specification Section 28-31-64.00-10 Fire Detection and Alarm System, Addressable and Drawing E-05 Fire Alarm System Riser Diagram. Provide the following basic Small Addressable Fire Alarm System, all self-contained in the WPB Storage and Gym Building. Provide a Fire Alarm Control Panel (FACP) installed in the in the Telecommunication Closet to power and monitor all of the alarm initiation and signal appliance devices in the building. The fire alarm provision in the WPB Storage and Gym Building shall be complete in all respects and shall be “Turn-Key”. Provide in the Main FACP of the WPB Storage and Gym Building one set of dry alarm and system trouble contacts which can be used at a later date for connection into the existing Silent Knight #IFP-100 Administration Building Main FACP.

QUESTION: With regards to the new underground conduits required for the electrical feed for Panel H-1 and the Comms Conduit, is direct burial an acceptable method of installation or are the conduits required to be concrete encased?

ANSWER: Direct burial of conduits is acceptable.

QUESTION: If underground conduits are not required to be encased in concrete is directional boring allowed as an option for installation?

ANSWER: It is recommended against directional boring.

QUESTION: Please identity location where temporary power will be available during construction?

ANSWER: The contractor shall arrange and pay for temporary construction power.

QUESTION: Please confirm that the life safety plan dictates where the 2 HR and 1 HR shaft walls are located.

Wall section’s 2 and 3 on A-09 show the shaft wall system but on the life safety plan the shaft walls are only located on the N wall and SE corner of the storage bay and the N wall of the gym?

ANSWER: Sheet LS-02 Life Safety Plan is correct. On Section 2/A-09 and 3/A-09 WAREHOUSE END WALLS the leader note "UL DESIGN No. U415 SYSTEM B 2 HR FIRE RATED" applies only to the North end wall. For the South end walls a leader note similar to that on Section 1/A-09 reading "5/8" GWB on 7/8" FURRING CHANNELS 16" O.C. ATTACHED TO WALL PURLINS. PANIT FINISH." applies. The Drawing Sheet A-09 is revised.

QUESTION: Spec section 092200 calls for interior non load bearing metal studs to be .033 gauge which is a structural gauge for load bearing framing. Typically interior 20 gage studs are .019 20 gage EQ. Can we use 20 gauge EQ studs as long as they meet L/240 at 5lbs per sf limiting height requirements?

ANSWER: Use 0.033 inch thick metal studs as specified.

QUESTION: The building is required to meet Miami-Dade County standards; can it meet Pinellas County standards instead?

ANSWER: No. The Florida Building Code as applied to Pinellas County requires resistance to a lesser wind speed and does not require missile impact testing of components which has been determined a necessity for a Coast Guard operational facility.

QUESTION: Spec Section 13 34 19; page 13; para. 1.10; sec 1.10.1 Building Warranty: States that the warranty period for the building is to be less than 20 years from date of acceptance. This is not a Pre-engineered Building industry standard and we have not been able to find a manufacturer who can provide this (it is common for roofs).

Can this requirement be changed?

ANSWER: Yes; Delete from Specification Section 13 34 19; Paragraph 1.10.1, "Building System Warranty" and Paragraph 1.10.2, "Roof System Weather-Tightness Warranty".