Attachment_0007__Questions_and_Answers_0002.pdf

Russel Cave National Monument Gilbert H. Grosvenor Visitor Center Project

Questions and Answers for Solicitation 140P5122R0008

Question 1:

Electrical:

Refer to the snapshot below taken from Drawing E3.0. Please clarify the metering shown on the “Power Riser Diagram”. There is no utility company metering shown on this diagram. The only metering is shown to be mounted internally in the new Main Panel “MP”. Is that a correct representation of the desired power metering? It is typically an external metering setup on the exterior of the building and not part of the interior building electrical equipment.

Answer:

This is an internal meter for the Park and is not associated with the Utility Meter outside. The existing utility electrical meter is located outside near the parking lot. This meter is to be reused. The meter shown on the new panel 'MP' inside the building is a demand meter for NPS staff to monitor electrical usage in the building and thus does not need to be accessed by the utility so it can remain in the location shown. Specification section Panelboards 26 47 10 - 2.11.A.1 provides the requirements of this 'demand meter' shown on the Power Riser Diagram, which is referred to in the specifications as an 'Electronic power monitor'

Question 2:

Are we to intercept the existing underground secondary line from the power company and re-direct it into the new “Service Disconnect”? The Power Riser Diagram is not clear on that. If so, can the location of the existing underground secondary line be identified on a site plan and made available to us? We need that information in order to know the distance between it and the location of the new “Service Disconnect” switch and help identify the work involved.

Answer:

This is an internal meter for the Park and is not associated with the Utility Meter outside. The new service disconnect is to be located in the same location as the existing service disconnect. The existing conduit and conductor (existing secondary feeder) to the existing service disconnect can be reused for the connection to the new 400A service disconnect.

Question 3:

What is the name of the power company serving that area?

Answer: North Alabama Electric

Question 4:

Should the fire alarm system have horn/strobe notification or a voice EVAC system?

Fire Alarm Specification, section 28 31 00, page 5 paragraph G. - Provide a digital audio system, including supervised primary amplifiers standby amplifiers, and tone generators.

Fire Alarm Drawing Page FA0.0, Fire Alarm Notes 8, 10, & the fire alarm legend reflect horn/strobe devices.

Fire Alarm Drawing Page FA2.0 have wattage ratings for voice evac shown by the horn/strobe symbols. Horn/strobe devices usually reflect decibel levels.

Answer:

Voice Evac Com is not required. Horn/strobes is acceptable. The digital audio system will not be necessary as part of the horn/strobe system. The decibel level of the horn/strobe system is set by the manufacturer.

Please provide clarification if the fire alarm system is to have horn/strobe notification of a voice EVAC system.

Answer:

Voice Evac Com is not required. Horn/strobes is acceptable. The digital audio system will not be necessary as part of the horn/strobe system.

Question 5:

On the back side of the building at the exterior wall near the existing garage doors there are 2 conduits going underground. Maybe to auxiliary buildings. I cannot find any circuits in the new breaker panels to supply these. Please advise how to proceed.

Answer:

Existing circuits serving areas outside the renovated building shall be intercepted and reconnected to the new panels, matching wiring size and type. Update Panel Schedules on As- Builts, label enclosure with updated circuiting information.

Question 6:

On the exterior of the building on the electric service entrance side there is a conduit going underground. Maybe to the electric gate. I cannot find any circuits in the new breaker panels to supply these. Please advise how to proceed.

Answer:

Existing circuits serving areas outside the renovated building shall be intercepted and reconnected to the new panels, matching wiring size and type. Update Panel Schedules on As- Builts, label enclosure with updated circuiting information.

Question 7:

In the existing Men’s Toilet, there is a “dropped ceiling and wall” over the water closet area.

This area is not shown on the drawings. Do we remove this portion of wall and ceiling? See attached photo. I assume same condition in Women’s Toilet.

This area is indicated for demolition with Note 1 on AD2.0.

Question 8:

Reference Specification Section 10 21 13-Toilet Compartments, part 2.4, E.4 which states height of toilet partitions to be 55”. However, Details 2 and 6/A2.3 show top of toilet partitions to be 6’8”. Please clarify which height is to be used for the toilet partitions.

Answer:

The 6’-8” height shown in the drawing details should be utilized instead of the specifications for the partitions.

Question 9:

Reference Door Schedule on Drawing A7.0. The wood doors require wood frames. Looking at Details 5and 6/A7.1 (jamb and head detail), it appears these frames are made on site. Is a pre-hung wood door frame acceptable?

Pre-hung frames acceptable

Question 10:

Since wood doors are to be pre-finished, are the wood door frames required to be pre-finished?

Answer:

Yes, they should be pre-finished to match the doors. Wood species of frames must match the wood species of the doors.

Question 11:

Reference Specification Section 07 21 19 Foamed-in-Place Insulation: is foam insulation be placing at all perimeters walls and roofs including existing perimeter walls and roofs), or only at the new perimeter walls and roofs?

Answer:

All perimeter walls and roofs – both new and existing. Refer to Wall Type ‘C’ as drawn on G2.0 and indicated on A1.0. Foamed-in-place insulation is also detailed in wall sections on A6.0 for showing locations in new walls, existing walls and placement in existing roof structure.

Question 12 :

Attachment 003 Wage Determination does not show the determined wage scale for ceramic tile installers. Please provide determined wage scale for this trade.

Answer:

Similar Jobs are grouped together, see the wage determination for this information on how to determine workers in this classification. Additional information on wage determination requirements is available at https://www.dol.gov.

Question 13:

Is there any treatment to the concrete floor prior to the staining of the concrete floor per the Finish Schedule? Concerned about floor in existing spaces where carpet and stone tile are currently installed.

Answer:

See A4.0 Finish Floor Legend. “EXISTING CONCRETE SLAB EXPOSED, CLEAN, STAIN, HARDEN AND SEAL.” Additionally, see General Note C on A4.0 which calls for the existing concrete slab to be levelled, patched, and sealed which applies to all areas to be stained and General Note D on A4.0 which calls for existing flooring to be demolished down to the existing concrete slab prior to new finishes being applied. Concrete floor treatment should also follow specification section 03 35 50 – Section 3.1 details pre-application requirements, section 3.2 details preparation of the floors and section 3.3 details surface repair as needed.

Question 14:

Existing toilets: notes direct to remove existing ceramic tile floor which will leave a 1 ½” depressed area from adjoining floor slabs. I find no notes to raise this depressed area to finish floor area of remaining building. Please confirm this depressed area is not to be raised. If depressed area is not raised, how do we address the transition?

Answer:

See A4.0. “NEW STAINED AND HARDENED CONCRETE TOPPING SLAB OVER EXISTING CONCRETE SLAB.” The floor will be topped with a new concrete topping slab to bring the level up 1-1/2” to be flush with existing. This is noted on the legend and general notes on A4.0 and shown on the wall section 3/A6.0.

Question 15:

Is it possible to postpone the Bid Date at least one week? Lots of information to get to subcontractors/suppliers.

Solicitation 140P5122R0008 has been extended, see SF 1442 for current bid date information.

Question 16:

Reference Drawing M1.0: CU-1 Condensing Unit is shown on a 4” concrete pad outside Elec/Telecom Room 115A. However, CU-1 Condensing Unit is not listed on the Equipment Schedules on Drawing M2.0. Please provide information on CU-1 Condensing Unit.

Answer:

Basis of Design for the split system condensing unit is a 15 ton dual compressor, dual circuit Trane model TTA18043DAA sized for 186 MBH. Electrical requirements for condensing unit are 208v/60/3phase with 74.0 minimum circuit ampacity and 16.3 system kW.

Question 17:

Reference Spec Section 28 34 00: What frequency bands are the emergency responders operating on? Examples UHF, VHF, 7/800. If the frequency band or exact frequencies are known, that would tie it down.

It is up to the contractor to determine what radio frequency the local emergency agencies use.

Question 18:

Reference Drawing AD1.0 Legend: Rooms Suspected to Have Asbestos Tile: Is asbestos abatement in our scope of work? If in our scope of work, an Asbestos Survey will be required to confirm areas of asbestos. Please provide Asbestos Survey for this project.

Answer:

Existing tile beneath carpet has been identified as asbestos containing material (ACM).

Contractor to treat the tile removal as an abatement operation and comply with all applicable rules and regulations. A hazardous material assessment was not conducted as part of the design contract. The basis of design noted in its observations that tiles consistent with ACM were in these rooms but again, this was an observational assessment, no testing was conducted to confirm. Specification 02 4100, 2.1.F, details the treatment of hazardous material.

Question 19:

Drawing AD1.0 Existing Theatre room has carpet. What is flooring surface under carpet:

concrete or stone?

Concrete. Plywood floor is visible under the carpet.

Question 20:

Drawing AD1.0 entrance from Exhibit area to Theatre room: the floor sill at this entrance appears to be about ½” higher the adjacent floor elevation and is the approximate with of the wall. Does this raised area need to be removed?

Answer:

Appears to be a threshold that was covered by carpet. It should be removed to provide a flat transition between spaces.

Question 21:

Will facility be vacant during construction period?

Answer:

Yes, please refer to specification 01 11 00 Summary of Work the occupancy requirements for the building. The building will be vacant and cleaned out ahead of the construction process but public access must be maintained around the site. This specification defines all of these parameters as agreed upon with NPS.

Question 22:

Will Owner be responsible for moving existing furniture, etc., prior to start of demolition work?

Yes, this is clarified in specification 01 11 00 Summary of Work.

Questions 23:

The hardware spec states Grade 1 but lists a CL500 which is a Grade 2 typically used in TI work that I can see or open spec.

Hardware in the building should be Grade 1.

Question 24:

Since is for a state park I think they are normally Best 9K Grade 1 Cyl. Locks instead of Dorma but could be mistaken. They go with Best 9K in TN not sure about Alabama.

Answer:

Hardware is specified in 08 71 00 and should match or surpass the requirements put in the documents. NPS does not have a sole source brand of hardware. This is part of a national park and therefore what is used on state parks does not apply.

Question 25:

I can’t tell from the plans and specs if they want Cylindrical or Mortise Locks and which brand to quote. Since Best cylinders best Locks might be the way to go.

Answer:

The hardware schedule on A7.0 identifies specific lock sets per door. The intent of the information on the hardware schedule and in the specification was for the components selected to identify which lock would best fit in each situation. For clarification:

Doors 111 and 115C should have mortised locks. Use Schlage “L-Series Commercial Grade 1 Single Cylinder Keyed Entry Mortise Lock Deadbolt” as basis of design in oil-rubbed bronze.

All other doors that get new locksets (including 109, 110, 100A, 100B, 115A, 104, 105, 114 and 115B) are interior doors which should receive cylinder locks and either an Entrance/Office Lockset or a Storeroom Lockset. For the purposes for bidding, use Schlage “Jupiter Style Lever Heavy Duty Series” as a Basis of Design in Oiled Rubbed Bronze.

Question 26:

Please provide clarification on what type locks are to be used on this project.

See Spec 08 71 00-5

Question 27:

What is required for the data cableing?

Conduit only, Cable and conduit. Do we provide jacks and face plates?

Do we provide any data equipment?

Please verify the data cable should be installed in a complete conduit system from the wall jack to the data room per general note 1 on sheet E 1.0

Answer:

The contractor does not supply data equipment, however the contractor must supply cable, face plates conduit per NPS cabling document attached.

Question 28:

Please verify the fire alarm cable is to be installed in a complete conduit system per division 28.

The fire alarm cabling is not required to be installed in conduit.

Question 29:

Please verify the existing electric service entrance conduit and conductors will be reused and connected to a new 400 amp breaker per sheet E3.0 detail 1.

Answer:

Yes the existing underground and conductors to the exterior mounted pull box will be reused to that point. Then a new 400A circuit breaker will act as the service disconnect and new conduit/wiring will be provided from that disconnect to the new Main Panel ‘MP’.

End of Question and Answers