Attachment__3_-_SOW_Cucuta_Barrier_Wall.pdf

JPL/16 November 2016

Attachment 1 – Statement of Work

CUCUTA BASE CONCRETE BARRIER WALL SYSTEM

1.0 Statement of Work

1.1 General

The offeror shall provide all labor, materials, equipment, machinery, and components to construct 160 Meters of reinforced concrete barrier wall. The offeror shall provide for review and approval the design, drawings, material properties for the system to be provided and identify an ability to support the logistical and security requirements associated with project execution.

The offeror shall have the capability of providing a reinforced concrete barrier-base defense system structure designed to protect against ballistic penetration of direct fire up through 7.62 caliber and fragmentation projectiles up through 40mm and vehicle entry by vehicles up to and including 2 tons traveling at 30 miles per hour

1.2 Construction Process

The offeror shall construct the defense system structures according to the following procedures:

1.2.1 A geotechnical survey will be provided of an area on the base that is close to the solicited project, however, the awardee shall execute confirmation of the provided survey. The offeror is solely responsible for the design of the steel barrier wall defense structures and for a confirmation Geotechnical study that shall include the investigation of the subsoil, the analysis and Engineering recommendations needed for the design and construction of the works in contact with the ground, as to ensure an appropriate behavior of the structure, as well as the existing utilities (if applies), the land and the neighboring constructions. It shall include all the field tests required to quantify the mechanic and hydraulic characteristics of the subsoil. The offeror is solely responsible for verifying the design of the reinforced concrete barrier wall defense structures and shall submit for review by the INL Technical Review Panel a detailed report, which is to include but is not limited to the technical requirements, material requirements, design review and drawings of the defense system structures, the recommended approach for the project and a detailed timeline, GANTT chart and critical path.

1.2.2 Transportation of Materials. The offeror shall be responsible for coordinating the transportation of all required material for assembly of the defense system structure. If fill material shall be delivered to the project site, then the offeror is responsible for this effort. The offeror is responsible for ensuring that all project material is delivered in an appropriate and timely manner, taking the necessary precautions to avoid any damage to the material during on load, transport and off load, with full consideration and responsibility given for all transportation security requirements.

1.2.3 Construction of the Concrete Barrier Wall Defense System. The offeror is solely responsible for the construction of the defense system in a safe, proper and timely manner.

1.2.4 Cyclopeo Rock base Concrete: The offeror shall perform the construction of cyclopeo rock base concrete for the foundation, in order to support the concrete barrier and shall include the supply of all material, labor, facilities and equipment required. The contractor shall supply and install all straight edges that shall be necessary for restraining and shaping the concrete, and shall lay all reinforcement steel that might be needed. The offeror shall propose a mix designed following these parameters: 40% of rock of 15-20 cm. average size and 60% of concrete with a resistance of at least 3000 psi shall be used. The entire construction process should comply with the NSR-10 requirements, specifically Chapters C.1 - General Requirements, C.3 - Material, C.4 - Durability Requirements, C.5 - Concrete Quality, Mix and Laying, C.6 - Straightedges, Embedded Pipe work and Construction Joints, and C.7 - Reinforcement Details, all in accordance with Chapter C.2 - Definitions.

1.2.5 Concrete Structures: The offeror shall supply the manual labor, material, equipment, and the execution of all the work necessary for the construction of the foundation and the structure for the concrete defense wall. Before initiating the construction of the structures, the Contractor shall verify that the construction site is free from vegetation and construction debris; and that the surfaces do not have low areas or areas with standing water. The foundation bases shall be leveled before pouring the concrete. The Contractor shall build the foundation structures in accordance with the NSR-10 and the recommendations of the soils study. The concrete shall have a strength f’c of minimum 5,000 psi (350 kg/cm2), which shall be certified by the Contractor using test cylinders that will comply with applicable standards.

The re-bar for the foundation shall be Fy= 60,000 psi (4,200 Kg/cm2) for Ø > 3/8-inch and Fy= 34,000 psi (2,400 Kg/cm2) for Ø 1/4-inch. The contractor shall follow the parameters of the design supplied by the US Government. The Contractor shall supply the formwork, transportation and installation of the concrete for the structures including the reinforcement steel specified in the attached structural drawings. Contractor shall include the execution of the corresponding laboratory tests as required. The Contractor shall take 6 sample cylinders for concrete resistance tests per pouring or per each 5 m3, in order to test 2 cylinders at 7 days, 2 cylinders at 28 days and leave 2 cylinders as proof samples. The results of the laboratory tests shall be provided upon request to the US Government Representative.

1.2.6 Fill Material. The offeror shall execute confirmation of the provided geotechnical survey, and shall ensure the site properties meet the required physical properties to support the structure offered. Should the offeror require any fill material from a different site to assemble defense system, the offeror shall take fill material soil samples and/or perform other appropriate soil studies to determine suitability of said material. The offeror is responsible for ensuring that the fill material used to fill the defensive barrier wall system meets all force protection requirements, and that the material does not include rocks or other inappropriate material that may cause injury or pose a safety risk should the bastion defense system come under attack. Shrapnel-producing material (3/4” and larger) must be screened and removed prior to filling the defense wall system. If delivery of fill material is necessary, the offeror shall include the location where appropriate fill material is to be obtained. The offeror is solely responsible for the acquisition of and quality of all fill material

1.2.7 Equipment and Machinery. For each project, the offeror shall identify, procure or rent the appropriate equipment and machinery to be used based on the project requirements.

1.3 Site preparation. The offeror shall identify additional tasks required to install a complete defense systems, including but not limited to, appropriate soil stabilization/fill, disassembly/removal of existing fencing and structures to include the existing perimeter wall, leveling/grading, etc. If any surface or subsurface obstacle is encountered, it will be removed and properly disposed of or if required (i.e. fencing, utilities, aqueduct, sewage line etc.), will be properly relocated/rerouted to allow for the construction. All work must be performed in accordance with the latest Colombian National codes. Throughout this site preparation phase care must be taken to ensure civilian structures that are on the base perimeter and adjacent to or along the path of the perimeter barrier wall are not damaged.

1.4 Water and sewage services. When required, the offeror shall ensure proper relocation/rerouting of water, sewer, and electrical installations. These items will be detailed and individually priced. The offeror shall indicate in its proposal how it plans to manage this task. The offeror shall provide a civil-hydraulic certified engineer for completing the work with demonstrated, relevant experience for on-site supervision. All work shall be performed in accordance with the latest Colombian National codes.

1.5 Power services. The offeror shall provide a certified electrical engineer for the completion of electrical installation and/or relocation and equipment connections with demonstrated, relevant experience for on-site work. This task includes but shall not be limited to: external movable spotlights; reflectors; system planning and construction of or removal of electrical infrastructure (if required posts, cabling, substations, transformer, and generators, etc.), in accordance with the latest Colombian National codes. All electrical works shall comply with the following electrical standards: NTC 2050 last upgraded version included but not limited to chapters 1,2,3,4 and section 645,NEC 250 last version upgrade, NTC 3471/UL 67, EIA/TIA 607, EIA/TIA 568-569 last version upgraded, ANSI/IEEE C62.41-C62.45, NEPA 780, NTC 4552, IEEE-80, IEEE-77 and RETIE last version upgraded.

2.0 Delivery Location and Time.

2.1 The offeror shall deliver all defense system material and components to the work site by the date and time specified.

2.2 The offeror shall be responsible for ensuring that its personnel and subcontractors follow any special instructions for material delivery, as may be specified. This applies to any outside sources or subcontractors that might be delivering materials to a project site on behalf of the contractor. The contractor is responsible for the security of the material and components.

3.0 Completion, inspection, and delivery

The offeror shall include a project management tool (Gantt chart and critical path, or equivalent) indicating preparation, delivery, installation, clean up/turn over, and related tasks.

4.0 Specifications.

4.1 General.

All defense systems provided/assembled by the offeror shall meet the following minimum specifications:

4.1.1 Defense system is to be fabricated utilizing a minimum 12 inch reinforced concrete outer wall and 12 inch reinforced inner wall (components are thoroughly mixed and vibrated to attain minimum compression strength of 5000 p.s.i. at 28 days, using pea gravel aggregate and a corrosive inhibitor. The rebar shall conform to ASTM A615, Grade 60., steel mesh shall be galvanized. All components shall be manufactured with fibrillated fiber as a secondary reinforcement.).

4.1.2 The outer and inner wall shall be spaced to accommodate a minimum of 12 inches of screened river sand with no objects larger than 3/4 inches.

4.1.3 Utilizing reinforcing bar the concrete inner and outer walls shall be anchored to a reinforced concrete base/footer system that is no less than 2 feet below grade and poured on a compacted (cyclopeo) rock base.

4.1.4 Both inner and outer wall shall be connected with a minimum 2 inch diameter reinforcing rod every 1.3 meters from footer to top of wall and spaced every 3 meters the length of the wall.

4.1.5 The sand filled center of both walls shall be completely filled with no voids and shall be capped with a minimum 4 inch load bearing reinforced concrete that is anchored to both the inner and outer wall.

4.1.6 The total wall height above grade shall be no less than 3 meters.

4.1.7 The defense system shall be level, and stepped to accommodate for change in grade. Once installed, the system shall offer immediate stability meeting all appropriate Colombian building and structural codes.

4.1.8 The inner and outer wall shall be properly finished so as to offer an ascetic finish capable of being painted with the appropriate color scheme of the base.

4.2 Paint.

The reinforced concrete barrier system shall be properly sealed for moisture, primed and painted with outdoor concrete paint able to withstand elements to include UV rays, salt air, moisture, mold and possible covering by vegetation, and sealed with paint sealer without reducing or compromising the painted finish. The concrete barrier system shall be painted in accordance with the installation paint scheme. Paint shall have a 10 year limited warranty.

4.3 Maintenance.

Following installation, the installed defense system’s design shall facilitate easy maintenance during the warranty period; any damage related to poor site preparation, design, quality of material or construction shall be repaired by the contractor. All damages shall be repaired in such a manner so that the repaired defense system has the same resistance, level of protection and asthenic appearance as before the damage occurred.

4.4 Warranty.

The offeror shall provide a defense system that shall retain its quality, structural integrity, and protective properties; shall remain stable with the required level of force protection for a minimum period of 10 years. The warranty shall cover all material, transportation and labor.

5.0 Supply and Required Components. The offeror shall provide all required components.