Attachment 0009- Questions and Answers.pdf

Date Time Question Response

1/21/2022 20:46

1. Article 4 of Attachment 5 Statement of Work describes the details of the work anticipated under this planned acquisition. 2. In this Article reference is made to Sub-Articles

a. 4.1.14.3 Joint Seals,

b. 4.1.14.4 Spall Repairs, and

c. 4.2 Runway Markings with all its subclauses.

Yet there are no details as to the extent, quantities or outlines of these works and markings/striping!

Without these details, it would not be possible to ascertain the volume of repair and hence the bid amount! Could you please advise

Drawing B000-DAB-AB-C-671 shows the main ramp and sunshade parking areas. These are the two areas which require the joint seal. Airfield markings are on B000-DAB-AB-U-575-01. Spall repairs require a pavement survey and quantities shall be provided as soon as possible

1. The drawings issued include details for both ATCT of Dirab and Khashm Al Aan, however, the solicitation only specifies Dirab AB as the subject of the acquisition! Does this means that both ATCT are covered with this acquisition; for Dirab and Khashm Al Aan, please!

The project is only for Dirab. The drawings for Khashm Al Aan are for cross reference only.

1/21/2022 14:57

What is the status of our company in (JCCS) at the moment?

Dirab Airbase (Saudi Arabia) Construction & Repair attachment downloading errors have been resolved and are now available for download without JCCS approval. I do not have access to that database regardless.

1/21/2022 10:36 Is there any runway / taxiway grinding or grooving involved in this project?

Question received. Answer will/may be provided in subsequent amendment to solicitation.

1/21/2022 14:38

Do you have any new requirements?

All solicitations are separate and require contractor to respond to any opportunities in SAM.gov of interest. If you wish to quote on the Dirab Construction and Repair request for proposal, I am the contract specialist to communicate with all other solicitations are independent.

1/17/2022 13:21 Would the Government be able to provide a Rough Order of Magnitude (ROM) for the project Posted in the Solicitation

1/10/2022 15:46

Kindly provide us the Generator specification and fuel tank. Also, there are some changes in the scope of Airfield Marking.

1) The generator specification is described in Section

4.1.14 of the SOW. The fuel tank criteria is explained in 4.1.14.2. The contractor will be responsible for determining the size of generator based on load capacities for "Critical" and "Non-critical" equipment.

2) Clarify comment regarding changes in Airfield Marking scope

2/7/2022 7:30

1. As per site visit discussion, the client will send the calculation of existing electrical load to be the basis of the backup power design. Kindly provide.

Drawings B110-DAB-AB-E-800/Single Line; B110-DAB- AB-E-810-01 and 02, Panelboard Schedules

2/7/2022 7:30

1. May we request the client to provide the exterior utilities and the control tower electrical as-built for the contractor’s basis of design

Drawings B110-DAB-AB-E-800/Single Line; B110-DAB- AB-E-810-01 and 02, Panelboard Schedules

2/7/2022 7:30

1. May we request a proposal extension to analyze the as-built and provide a competitive price

We will issue a one week extension with the next amendment.

2/7/2022 7:30

1. It was mentioned that the contractor needs to build a generator room near the control tower. Please provide the existing site plan, and the clients proposed location of the generator room

A generator room is not required, just a generator with outdoor enclosure as specified in the SOW. The proposed location is in the open area nearest the electrical room

2/7/2022

As the compass is not mentioned in the SOW, but during the site visit, the client requires the compass as well, please clarify

The existing compass rose paint scheme needs to be corrected to reflect the UFC requirement. The SOW needs to be amended to include this work

2/7/2022

1. Kindly share the quantities of requirement of concrete repair at site, if possible. Question received. Answer will/may be provided in subsequent amendment to solicitation.

2/7/2022 1. Please provide the electrical load calculation data, orGenerator capacity and specification. Drawings B110-DAB-AB-E-800/Single Line; B110-DAB- AB-E-810-01 and 02, Panelboard Schedules

2/7/2022

1. For critical load, do you need the UPS as well? because when the main power shutdown, the generator will take minimum 1 - 2 minutes to power ON, to minimize the interruption, you need the UPS, please advise. If you need the UPS, please provide us the load calculation, so we can design the UPS accordingly.

There is an UPS installed on the main already and will be required to be considered in the contractor's electrical submittal for inclusion or replacement. The Genset shall be designed with an Automatic Transfer Switch with minimal time delay

2/7/2022 Please provide any existing detailed shop drawings or structural analysis for the ATCT steel framing & windows.

As-builts for the steel framing and window are available from ACC-RI.

2/7/2022 Please provide the structural and architectural detail of the window base connection into the ATCT.

As-builts for the steel framing and window are available from ACC-RI.

2/7/2022 Please provide the existing shop drawings and product data for the installed glass from the as-built drawings for review.

As-builts for the windows are available from ACC-RI.

2/7/2022

Please provide the existing ATCT mechanical drawings/details, such as duct sizing and air conditioning systems, for review in order to determine the thermal characteristics required of the new glass to avoid the need for upgrading the existing air conditioning.

The air conditioning systems will not require upgrading

2/7/2022 Generator, Enclosure, and Fuel Storage: Please provide the electrical single line diagram, room layout, and panel schematics for the panels and equipment supplying power to the ATCT.

Drawings B110-DAB-AB-E-800/Single Line; B110-DAB- AB-E-810-01 and 02, Panelboard Schedules

2/7/2022 Please confirm the load of the critical equipment requirement that the generator will need to supply.

Drawings B110-DAB-AB-E-800/Single Line; B110-DAB- AB-E-810-01 and 02, Panelboard Schedules

2/7/2022 Is there an existing back-up system installed such as a UPS for the ATCT?

Yes there is an existing UPS installed and must be taken into consideration for Genset and ATS design

2/7/2022 Joint Filler

Please provide the existing detail from as-built drawings to show the existing configuration of the concrete/asphalt joints to determine the most suitable repair option.

Drawing B000-DAB-AB-C-671 shows the main ramp and sunshade parking areas. These are the two areas which require the joint seal

Please provide the material submittal for the existing asphalt from the as-built construction.

Question received. Answer will/may be provided in subsequent amendment to solicitation.

2/7/2022 Spalling

Has a study been performed to determine the number of locations affected by concrete spalling?

Not recently. A new study is required to quantify the number of existing spalls. To clarify, these are edge spalls and not pavement surface spalls.

If no spalling study has been performed, what is the criteria of spalling locations that must be repaired? This information will be provided as soon as possible

2/7/2022 Markings

How many runway areas can be taken out of action for signage/marking works simultaneously?

This can be coordinated with Dirab Flight Operations once the work begins.

Are there any runway operational hours or requirements that should be considered during the performance period?

This can also be coordinated with Flt Ops.

2/7/2022

A. 4.1.1 “Glass must extend below the controllers console”. Please clarify how much to lower the glass.

The glass may not be permitted to extend below the console due to a structural beam that is positioned right at the bottom of where the current glass is. See drawing B-110-DAB-AB-07-06, Section 09 which shows the relation between the bottom transom connector and the steel structure beam. Also refer to drawing B110-DAB-AB-S-452-02/05 which shows the cab steel structural frame

2/7/2022

B. 4.1.2 “Glass must slope at an angle of 15 degrees” The existing aluminum cladding will no longer be aligned with the modified glass angle. Does this need to be amended or not?

Yes the cladding will need to be adjusted accordingly.

This adjustment should be included in the proposed repair shop drawing submittal to the US government

2/7/2022

C. 4.1.6.1 “Minimize … mullions in all corners and in between glass panes for maximum air traffic controller visibility” this requirement is subject to wind/seismic load calculations. Limitations will be prevalent.

It will be the contractor's responsibility to calculate the loads and submit for proposal to the US government

2/7/2022

D. 4.1.14 “ATC Emergency Generator…” Location of existing generator is required along with restrictions for backup generator and fuel tank locations. Fuel tank allowable size limitations is also needed.

The proposed location is in the open area nearest the electrical room as was explained during the site visit.

The tank shall be designed per capacity as explained in 4.1.14.2

2/7/2022

E. 4.1.14.3 “Joint Seals” need photos of existing joint (overgrowth? Previously filled? Filled with concrete?

Clean?

Basically there is no joint between the rigid and flexible pavements so to answer the questions Previously filled? No. Filled with concrete? No.

Clean? Please clarify what this means

2/7/2022 F. 4.1.14.4 “Spall Repairs” Same as point 5.

These are new edge spalls which will require repairs.

They have not been filled or cleaned.

2/7/2022 G. Site master plan is needed to take quantities for runway paint. Drawing B000-DAB-AB-U-575 2/7/2022 I. Will the USG provide project specifications? Yes

2/7/2022 J. The Generator will be provided with Sunshade?

It is not specified in the statement of work but yes, it would be beneficial to install sunshades for the generator and fuel tank.

2/7/2022 K. Site Laydown Plan – KTR Site Office allowed to be installed here?

Question received. Answer will/may be provided in subsequent amendment to solicitation.

Q & A