19AQMM18R0097_QA.pdf

Cucuta Diran DICAR Constructions Questions and Answers 19AQMM18R0097

Solicitation No. 19AQMM18R0097

CUCUTA DIRAN & DICAR Construction

Q&A #

Drawing/Spec.

Reference Subject Description Responses

EXTERIOR WORKS

A 20” sewer pipe crosses the project through the middle, direction E-W, where all waste water will be connected according with designs.

Will this existing pipeline affect, in any normal way, this project?

No, this existing sewer pipe does not affect the project because is located a 2 meter of deep and additionally the project is going to be located on a embankment.

EXTERIOR WORKS

Some existing trees are to be removed while others remain.

Please give us the exact number of trees, to be removed and to be protected (this because in our opinion, an existing tree that doesn’t appear in the drawings, close to the north east corner of the project might or will be affected)

Are permits to perform these works available or needed?

Three trees shall be removed as indicated in the drawing A01. These trees are drawed in gray color and have a comment indicating that shall be removed. The trees in gree color shall be protected during construction.

If you are referring to one small tree beside existing sentry box, this tree shall be relocated into the Police base according to

Police indications.

Permits will be done by Police.

EXTERIOR WORKS

Please explain more detailed the exterior design, its components and scope, what elements do we have to price (beside excavations and sidewalks), like gardens and green areas, exterior equipment, even the existing exterior eastern fence.

The offeror shall quote the activities indicated on drawings and described in the specifications as is requested.

4 General Which or what electric appliances or housing equipment, like beds, mattresses and other furniture do we need to include in the price?

The scope of work for this project are civil works, electrical works and mechanical works such as is requested in J-2-

7_Bidding chart , this project does not include furniture and electrical appliances. This was indicated in the finish schedule chart, Note 2.

5 Shall the level of the concrete slab of the new buildings match the level of the concrete slab of the existing CEFOP? Provide levels of the existing terrain to be filled and the existing level of the existing adjacent CEFOP.

Yes, the sidewalks of the new project shall have equal level of the exisiting CEFOP building that is located beside of the project site.

The levels of the existing terrain are showed in the drawings. We do not have the levels of the exisiting CEFOP building, this information should be obtained on site by the offerors in the site visit.

Please review contract clause "52.236-3 Site Investigation and Conditions Affecting the Work."

6 Please provide topographic information, which must be part of any design, in order to in an accurate way calculate the volume of EARTHWORK to be done (fills, backfills and cuts). We couldn´t take levels on the site visit which main objective Is to verify existing conditions but not make topographic measurements.

See Q&A No. 5

7 If you don´t have land survey information Could We assume that 1.5 m will be a good thickness of the fill to be made??? Please avoid to answer that We could make that measurements on the site visit. It´s your responsibility to provide complete information for us to make calculations. It is our responsibility, as examples, to make these calculations or to assume the risk of the exchange rate.

See Q&A No. 5

8 The air conditioning activity requires a multi inverter system with distribution boxes or

BD (Branch distribution) units. However, these BD units are not commercialized in

Colombia. They would need to be imported, which would elevate the cost of this activity. Then, should the initial design remain as it is with the BD units? Or can it be done with only copper piping instead?

Please see note on drawing M03 BD units shall be proposed by the contractor as necessary.

9 Are the PPQ’s submitted for proposal 19AQMM18R0048 (Manual Eradication

Lodging and Admin building in Caucasia, Antioquia) valid for this proposal? Or shall they be sent again with this proposal?

The PPQs submitted for proposal 19AQMM18R0048 are only valid for the subject solicitation. The PPQs for this solicitation (19AQMM18R0097) shall be submitted seperately.

10 The mechanical drawings require condensing units of 54.000 BTU for the air conditioning system. However, these units cannot be found in Colombia and cannot be imported because they are no longer produced. Therefore, please confirm whether units of 48.000 BTU can be used or how to proceed in this matter.

Please follow contract drawings and specification requirements for the proposal, once awarded value engineering cases will be reviewed with the awarded contractor.

11 According to drawing T01 2 lines of optic fiber will be installed. AS INFORMED ON

SITE VISIT, the drawing misses to inform that around 100 m of optic fiber, in 2 lines each, need to be installed in an existing underground pipeline to an existing rack in an existing adjacent building. Are We right??? 100 m is the correct length of each additional line of optic fiber to be installed?

This information should be obtained and measured on site by the offeror.

12 According to architectural drawings in the “convention box” it is required superboard

6mm and cementious board with insulation in fiberglass for the bedrooms. please specify in which area of the bedrooms is each kind of board required taking into account that they cannot be both in the same areas. is the cementious board only required for the ceiling of the bathrooms?" if so, When you talk about cementitious board are you talking about superboard RH type?

All bedrooms shall have ceiling in superboard 6 mm. with insulation in fiberglass double foil face type R15, Owens Corning or Equivalente. Also the bathrooms that belong to bedroom 314 and 311 shall have ceiling with the equal specifications indicated above and what indicated in the technical specifications .

The other bathrooms and all laundry zones, storages and internal corridors do not require ceiling.

Cucuta Diran DICAR Constructions Questions and Answers 19AQMM18R0097

Q&A #

Drawing/Spec.

Reference Subject Description Responses

13 1. Part I, F.9 “Deliverables/Submittals”: list in page 19 includes “evidence of licenses and permits”. Taking into account this project is located in a CNP Command, the licenses and permits required by Colombian law for private projects (i.e. Construction

License) would not be applicable in this case. Please clarify what permits and licenses are to be obtained by the awardee.

The Government is requesting licenses and permits that can be used as an evdience to operate construction acvities legally throughout the Colombia and espcially in the designated location, Cucuta. Such evidenced licenses and permits can be construction and environmental licenses.

14 2. Part I, G.5 and G.7 mentions a retainage as addressed in 52.232-5. However, 52.232-5 states that the CO shall authorize payment to be made in full, except when satisfactory progress has not been made. Please indicate what percentage of the amount of each payment will be retained, if any.

In accordance with the FAR 52.232-5(e), if satisfactory progress has not been made, the Contracting Officer will retain 10 percent of the amount of the payment until satisfactory progress is achieved.

15 Drawing E29: detail D17 indicates firestopping is required for Fire Rated

Construction. Please indicate which items (walls, slabs, ceilings) are required to be Fire

Rated Construction.

For the scope of this project use high strenght grout as required in the referenced drawing.

16 Drawing T01 indicates that “run fiber optic to local ISP as per local ISP requirements”. Please clarify scope of works of the project in regards connection with local IPS.

Contractor shall install fiber optic up to the required location by the local ISP company for connectoin, including all necessary termination and accessories as required. The CNP is responsible for the contract with the provider.

17 Drawing SS1 indicates 6” pipes to drain storm water to roadway. However, drawings

SS4 and SS7 show these pipes are 8”. Please clarify.

The pipe diameter for storm drainage system shall be in 8 inch.

18 Drawings SS1, SS4 and SS7 indicate underground pipes to drain to roadway.

However, it isn´t indicated if these pipes are to be connected to existing storm structures or new drainage structures are required to be built. Please clarify.

From the final inspection boxes (2 boxes showed in drawing SS1) the contractor should connect each box to existing storm drainage manhole. The contractor shall quote 60 m. of PVC pipe, Novafort type D= 8 inch. as indicated in drawing SS1A.

NOTE:

The drawings from SS1 to SS8 are replaced by new drawings from SS1A to SS8A.

The drawings from HY1 to HY7 are replaced by new drawings from HY1A to HY7A.

19 There are discrepancies between the Toilet Accessories indicated in drawing SS8 and in Specification Section 10 28 13. Please clarify

Please see note in new drawing SS8A.

20 Drawings SS4 and SS7 show Grease Traps to be provided. Please provide details or specifications for Grease Traps.

Please see note in new drawing SS8A.

21 Spec Section 05 12 00: paragraph 1.2 requests for submission of Shop Drawings of

Structural Steel. However, drawings provided in the Solicitation package appears to be sufficient for fabrication. Please confirm that shop drawings are required in this case.

Yes, the shop drawings shall be submitted with constructions details and specifitactions chart.

22 Spec Section 08 11 16 states in paragraph 1.2.1 that exterior aluminum doors and frames are required to comply with ASTM F1642, F2248 and E1300. Only imported doors and frames are certified to comply with these requirements, thus associated cost will be high. May these requirements be waived in order to allow locally produced doors and frames to be used and keep costs low?

The standards ASTM F1642, F2248 do not apply for this project. The ASTM E1300 apply for glazing and also it is requried by NSR-10.

23 Spec Section 13 48 00 requires Seismic Protection For Miscellaneous Equipment (i.e.

mechanical equipment, electrical equipment, shelving, partitions, etc). However, no details are provided in the drawings. Please clarify intent.

Follow specification requirements, see UFC 3-310-04.

Spec Section 23 00 00 (Air Supply, Distribution, Ventilation, And Exhaust Systems) mentions Exhaust Fans (EF). However, no Exhaust Fans are shown in mechanical drawings. Please clarify.

Mechanical Exhaust units are marked as EG-01 and RH-01 in the mecanical drawings M-01 and M-04.

Spec Section 23 81 00.00 20 states in 3.3: “Provide separate drain lines for the unit drain and auxiliary drain pans”. However, these drain lines are not shown in drawings.

Please clarify.

Drain lines shall be installed by the contractor the actual drain lines location and routing shall be submited under 23 81

00.00 20-1.3-SD-02 Shop Drawings.