26Q0033_Questions and Answers.pdf

RFQ 19PE5026Q0033 – CMR PATHWAYS RESTORATION

Questions & Answers

Q1. Please confirm that the provision of services such as electricity 220v and water will be supplied by the client.

A1. Yes, utilities will be supplied.

Q2. Please confirm if existing toilets may be used by contractor’s workers or if contractor needs to install portable toilets.

A2.Portable toilets will need to be installed by the contractor.

Q3. Please confirm the area that may be assigned to the contractor to be used as workers’s changing room.

A3. Contractors will need to fence-in an area to use an changing room

Q4. Please confirm if contractor may use an area for office and warehouse or install a 20 foot container at the garage area for that purpose.

A4. No containers will be allowed on the premises. The contractor can set up a tent for that purpose in a designated place inside the property.

Q5. What is the distance between the expansion joints along sidewalks?

A5.Control (contraction) joints: Space at 3.5. For a 150 mm slab. Joint depth should be at least ¼ of the slab thickness (about 38 mm).

Expansion joints: Install every 20 m(50 to 100 ft) and wherever the sidewalk meets a rigid structure (buildings, walls, stairs, bridge abutments, utility structures, etc.).

The terrazzo topping should not bridge structural joints. Every expansion joint in the concrete should continue through the terrazzo finish. Likewise, control joints should either align with joints in the terrazzo, or be saw-cut through the terrazzo at the same locations.

Q6. Please confirm the thickness of the existing sidewalks.

A6.They average 20cms.

Q7. There are elements such as utility boxes under the existing sidewalks. How will these elements be treated?

A7.They have to be preserved or if the location permits, move out of the new path.

Q8. Please confirm and provide information of the existing interior underground utilities (electrical, communication and/or plumbing lines). This will be useful to avoid any possible damage or interference during construction or reroute them beforehand.

A8.We do not have all the information available for this question. The ones that evident we discussed during the site visit that they will be only demolished superficially and refinished with terrazzo.

Q9. Confirm if the work area will be isolated from other areas with some type of temporary enclosure or fencing.

A9.Yes, fenced-in area along the work area will be required.

Q10. How will the cost of restoring plants and grass around the work area be assessed? A scope is needed. For a lump sum contract, each bidder will have a different evaluation criterion based on their level of risk.

A10.The status of the grass and plants at the beginning of the project will have to be the same status at the end of it. Contractors will damage more or less landscaping depending on their technics for demolition, excavation and debris removal.

Q11. Please confirm locations for collecting debris and excess material during construction.

A11.Contractor must contract a dumpster service to be located outside of the residence and have it periodically removed.

Q12. RFQ Letter / Attachment 1, Section 2.1 / Attachment 2

The RFQ indicates approximately 420 m² of pathways and exterior walking surfaces, to be confirmed during the site visit. Please confirm the final quantity to be included in the base proposal, the exact limits of work, and how any additional areas identified during the site visit should be treated: included in the base price, priced as a separate line item, or priced through a unit rate.

A12.The quotation will be based on an approximate area, 420 m2. Any deviation during or after the project will be calculated based on that unit price used for the quotation. For the small areas where we will ask for only superficial demolition and new terrazzo, a unit price will only be required.

Q13. Attachment 1, Sections 1.1 and 2.1

Please confirm whether the scope is limited only to the existing deteriorated pathways and exterior walking surfaces identified by the COR, or whether adjacent areas, transitions, ramps, borders, steps, drains, or other related exterior surfaces must also be included. If available, please provide a marked-up plan or sketch showing the limits of work.

A13.We are only addressing the pathways and areas identified during the walkthrough.

Q14. Section E – Working Hours

The RFQ establishes working hours from 08:00 to 17:00, Monday through

Friday, and allows other hours to be requested with COR approval. Please confirm whether such “other hours” may include work after 17:00, night work, Saturdays, Sundays, or holidays, and any applicable security, escort, noise, or access limitations.

A14. During the month of July when the house will be vacant, a more flexible work schedule will be permitted. When the house is occupied, 0800 to 1700 is the official work schedule.

Q15. Attachment 1, Section 2.4 / Attachment 2

Attachment 1 refers to a “15-centimeter compacted dirt subbase,” while

Attachment 2 refers to a “compacted granular base E=15 cm.” Please clarify whether the required 15 cm layer must be compacted native/dirt material, imported compacted granular base, or another specified material. If a granular base is required, please confirm the minimum specification or gradation required.

A15. Subbase: Well-graded crushed stone or crushed gravel (0–25 mm, 0–31.5 mm, or similar dense-graded aggregate)

Q16. Attachment 1, Sections 2.3, 2.4 and 2.5

Please confirm that the base section to be considered in the proposal is: 30 cm excavation below finished grade, one 15 cm base/subbase layer, and one 15 cm reinforced concrete slab with washed terrazzo finish. If unsuitable soil or conditions requiring additional improvements are encountered, please confirm whether such work will be treated as a differing site condition/contract change or should be included in the proposal.

A16. Confirmed.

Q17. Attachment 1, Sections 2.4 and 5.0

Please confirm the required compaction criteria, testing method, testing frequency, and acceptance documentation for the subgrade and base/subbase layer. Please confirm whether the contractor must include third-party laboratory testing in the proposal.

A17.Compacted to at least 95% of Modified Proctor Maximum Dry Density

(ASTM D1557), or as specified by the project. Placed in lifts not exceeding about

150 mm before compaction. Finished to a uniform, firm surface without soft spots.

Q18. Attachment 1, Section 2.5

The SOW specifies one Ø10 mm rebar grill at 20 cm on center each way.

Please confirm that no additional reinforcement is required at edges, corners, transitions, ramps, or higher-traffic areas unless expressly directed by the

COR. If additional reinforcement is required, please provide the corresponding detail.

A18. 150 mm concrete slab reinforced with Ø10mm bars at 200 mm centers each way, placed with 50 mm top cover required for the main slabs.

Edges

• Continue the main mesh/bars to the edges with proper cover.

• For free edges, add 1 extra longitudinal bar Ø10, about 50–75 mm from the edge.

Corners

• At re-entrant corners, drains, manholes, columns, steps, or inside corners, add diagonal bars to reduce corner cracking.

• Typical detail: 2 bars Ø10 about 600–900 mm long, placed diagonally at roughly 45° across the corner.

Transitions

• At changes in width, slope, stairs/ramps, curbs, or existing pavement, provide a full-depth isolation/expansion joint.

• Do not let the terrazzo bridge this joint.

Construction joints

• If the pour stops and continues later, use a formed construction joint.

Q19. Attachment 1, Section 2.6

Please confirm the washed terrazzo finish requirements, including color, aggregate type, texture, reference area/sample, joint/separator material, joint spacing, and acceptance criteria. Please confirm whether the COR will identify an existing approved sample or reference area for matching the finish.

A19.The existing terrazzo in the areas showed during the visits must be matched.

Approved samples will be necessary before implementation.

Q20. Section G.5.2 – Construction Personnel / Security Checks

Please confirm whether there is a maximum number of workers, supervisors, or subcontractor personnel allowed on site at the same time or per shift, considering security, escort, or access requirements.

A20.We can escort a maximum of 10 employees per escort at a time. We can provide max. of 2 escorts for this project.

Q21. Section G.5.2 – Construction Personnel / Security Checks

If additional or replacement personnel are needed during execution, please confirm whether they may be submitted for security review after work has started, the expected approval time, and whether the contractor may submit an expanded personnel roster in advance to avoid delays.

A21.Yes, we can add more personnel if needed, but it is not the recommended strategy for this type of property.

Q22. Section E – Period of Performance / Section G.5.2 – Security Checks

The RFQ requires completion within 30 calendar days after Notice to Proceed, while security checks may take approximately 25 days. Please confirm whether the Notice to Proceed will be issued after personnel security approvals are completed, or whether the performance period will be adjusted if security approvals delay mobilization.

A22.Yes, confirmed.

Q23. General Site Conditions / Utility Services

Please confirm whether the contractor may connect to existing electrical power at the CMR during construction. If power will be provided by the

Government, please confirm connection points, voltage, available capacity, and any applicable restrictions. If not, please confirm that the contractor must provide generator power at its own cost.

A23.Addressed in another question.

Q24. General Site Conditions / Utility Services

Please confirm whether water will be available on site for construction activities, curing, cleaning, and dust control. If water will be provided by the

Government, please confirm the available connection point and any applicable restrictions. If not, please confirm that the contractor must provide water at its own cost.

A24.Addressed in another question.

Q25. General Site Conditions / Site Logistics

Please confirm the allowed access route, staging/laydown area, material storage area, parking area, loading/unloading area, and debris removal route.

Please also confirm whether materials and tools may remain on site overnight or must be removed daily.

A25.Materials and tools can stay overnight. Both entrances can be used for loading and unloading upon approval.

Q26. Attachment 1, Sections 1.1, 2.1 and 3.0

Please confirm whether the work may be phased by area to maintain safe pedestrian circulation and minimize disruption to occupants and official functions. If specific access paths must remain available at all times, please identify such access requirements and restrictions.

A26.It can be phased.

Q27. General Site Conditions / Residence Operations

Please confirm whether any special restrictions apply due to official events, occupancy, security operations, or residence operations that may affect work sequencing, working hours, noisy activities, deliveries, or access.

A27.Yes, After July 28th, the house will be fully occupied and many events might take place, work will have to stop during those times.

Q28. Section J / Attachment 1, Section 4.0 – Submittals

Please confirm which submittals must be included with the proposal and which may be submitted after award and before commencement of work for

COR approval, including schedule, material submittals, concrete mix design, rebar specifications, terrazzo samples, method statements, and safety plan.

A28.It can be submitted after the award.

Q29. Please provide drawing of the area.

A29.Attached.

AutoCAD SHX Text Petit Thouars Ave.

AutoCAD SHX Text Madre de Dios St.

AutoCAD SHX Text Roca y Garcia St.

AutoCAD SHX Text Arequipa Ave.

AutoCAD SHX Text Pool

AutoCAD SHX Text Tennis Court

AutoCAD SHX Text

UNIDAD DEL PLANO :

AutoCAD SHX Text

METROS