ar104_01010_2019-05-29_Revised.docx

1010 Statement of Work C2 Node Fusion Center - N’Djamena, Chad

US Army Corps of Engineers Europe District

APO AE 09049

ar104

Statement of Work C2 Node Fusion Center N’Djamena, Chad

Prepared by:

Design Section Engineering Branch

12 APR 2019

Revised 29 May 2019

SECTION 01010

STATEMENT OF WORK

SECTION TABLE OF CONTENTS;

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL

4 STRUCTURAL

5 ELECTRICAL & COMMUNICATIONS

6 MECHANICAL

ATTACHMENTS

1.0 GENERAL

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) is for a design-build project of a single story command and control center building with approximately 532 m2 having masonry walls and a sloped metal roof located in N’Djamena, Chad.

The project must include the following general items of work, detailed requirements are contained elsewhere in this Scope of Work (Refer to Attachment #1 “Conceptual Site Plan”):

a. Grub, clear, and grade site;

b. Construct new fusion center;

c. Provide fuel tank and fuel distribution system for GFGI generator;

d. Provide concrete pad for GFGI antenna; and

e. Supporting infrastructure.

1.2 GENERAL REQUIREMENTS

The Contractor must deliver fully functional, turnkey type facilities (without furniture) as described in this document. The work includes but is not limited to design, demolition, fabrication, delivery, installation, construction, and site work. The facility and the installed equipment must be permanent construction.

The facility in this project must be complete and usable to meet codes and technical and functional requirements per this Statement of Work (SOW). All design, calculations, approvals, certificates, fees, labor, material, equipment, direct overhead, indirect overhead, G&A and general conditions to complete this project as described in the SOW must be included in the proposal price.

These design and product requirements are minimum requisites. Compliance with the provisions of this section by subcontractors must be the responsibility of the Contractor.

1.2.1 BASE BID ITEMS AND OPTIONAL BID ITEMS

This Statement of Work addresses the technical requirements necessary to complete all work associated with this project. For information and requirements regarding the allocation of pricing between elements of the work, refer to the Bid Schedule included as a separate document. The Bid Schedule identifies the breakdown between the individual base bid and optional items for all work identified in this Statement of Work, associated drawings, and attachments. All work as described in these documents is included in either the Base Bid or Optional Items: consider all items not specifically identified in the Optional Items as part of the Base Bid Items.

1.3 FUNCTIONAL AREAS AND SPACE ADJACENCIES

The fusion center must be designed and constructed as a one-story building with masonry walls and sloped roof. Provide all spaces listed below in accordance with the requirements of this Scope of Work and Attachment #3 “Room Data Sheets.” Refer to Attachment #2 “Conceptual Floor Plan” for a conceptual layout.

The following functional areas must be provided in the fusion center:

The completed facility must have a gross area of approximately 532 m2.

1.4 SUBMITTALS

Government approval is required for submittals with “G” designation; submittals not having a “G” are for Contractor Quality approval. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Pre-construction Submittals

Inspection Plan; G

SD-05 Design Data

35% Design; G, DO

95% Final Design; G, DO

100% Corrected Final Design; G, DO

1.4.1 DESIGN SUBMITTALS

Provide a complete design package at each milestone, as described in Specification Section 01 33 16 DESIGN AFTER AWARD. The milestones for this project are indicated above in Section 1.4 SUBMITTALS. The specific requirements of each milestone are described in each discipline-specific section of the Specification.

The Contractor must submit all document in electronic format (.pdf for text and calculations, .pdf and .dwg (AutoCAD, latest version) for drawings). See Specification 01 33 00 SUBMITTAL PROCEDURES for additional information.

1.5 MATERIALS AND EQUIPMENT

Materials and products used, must be durable, heavy duty industry standard. All materials exposed to the weather must be corrosion resistant. The equipment must be the manufacturer’s standard quality and must be compatible with all other equipment and materials within the system or assembly. Equipment and materials must include all connections and accessories necessary to ensure operability and correct installation according to manufacturer’s requirements.

Each major piece of equipment must have the manufacturer’s name, address, contact information, type or style, model or serial number, and catalog number on a plate secured to the piece of equipment. The definition of a “major piece of equipment” must be at the discretion of the COR.

1.5.1 LIFE-SPAN

Construction must have an expected life span of 25 years.

1.5.2 MAINTAINABILITY

Low maintenance materials and systems must be employed and must be appropriate for the project climate and location.

1.5.3 OPERABILITY

Systems including but not limited to mechanical, electrical, communications, must be simple to operate and easy to maintain.

1.5.4 STANDARDIZATION

The Contractor must use standardized materials, products, equipment, and systems to minimize the requirements for replacement parts, storage facilities, and service requirements.

1.6 DESIGN DIMENSIONS

The design must be developed using the metric system.

1.7 DESIGN CRITERIA

Project design, site facilities, utility systems and material standards must be in accordance with the latest editions of the Host Nation building codes. In the absence of Host Nation building codes the Contractor must use the International Building Code (IBC) and/or the U.S. / European codes and technical standards and regulations as required in this RFP.

While this RFP references various source standards and specifications, all design documents are to meet Host Nation codes and requirements. It is the designer's responsibility to demonstrate that the Host Nation standard is equal to the cited standard or specifications being supplanted. The more restrictive standards must apply when conflicts arise between the requirements of this RFP and any referenced or other applicable codes, standards or regulations. If equivalency cannot be met, the more stringent requirement must be used and both codes must be quoted verbatim in the Contractor’s correspondence to the COR. Where specific standards are not indicated, the designer must determine the required material and execution standards.

Provide an electronic copy of the local host nation standards and building codes in its original language as related to facility design and construction.

1.8 DESIGN CONFERENCES AND MEETINGS

The Contractor and the entire design team are required to participate in a design review conference at each design submittal. The Contractor may request a review conference, but the Government is under no obligation to conduct or participate in a review conference unless specifically identified in the contract documents. The Contractor must bring the personnel that developed the design submittal to any review conference.

All design review conferences must be held via teleconference or be reviewed and comments resolved via email.

The Contractor is responsible for taking meeting minutes during each design review conference and submitting to the COR for information and approval.

The Contractor is responsible for evaluating all Government comments prior to each design review conference. The Contractor is responsible for resolving all Government comments from each design phase. The Contractor must provide annotated responses to each design review comment with the subsequent design submittal packages. Construction may not begin until all Government comments from all design phases have been resolved.

1.9 SPECIAL CONSTRUCTION REQUIREMENTS

1.9.1 THIRD PARTY INSPECTION SERVICES

The Contractor must furnish independent 3rd party inspection services to inspect the electrical and structural construction features of the project. The 3rd party must not be the same company responsible for the electrical or structural installation. This is in addition to the Contractor Site Personnel Requirements in 01 46 00 SMALL PROJECT CONTRACTOR SITE PERSONNEL REQUIREMENTS. All testing must be at the expense of the Contractor. The Contractor must submit a plan for third party inspection services to the COR. The inspection plan must be approved by the COR prior to construction.

1.9.1.1 GENERAL REQUIREMENTS

3rd Party inspectors must submit professional reports directly to the COR without coordination with the Contractor within 48 hours of the actual inspection. Report will contain the following at a minimum: names of all persons present for activity, listing and approval of all related materials, description of observed activity, and 10 photos (minimum resolution: 1504x1000) of observed activity.

1.9.1.2 THIRD PARTY ELECTRICAL INSPECTOR REQUIREMENTS

The inspector must be a certified Master electrician or licensed, degreed Electrical Engineer and have a minimum of 10 years’ experience, 5 years in the country where the project work is performed. The Contractor must submit the inspector’s CV (Resume) for approval.

Minimum inspections to be conducted: all outlets, off-cover inspection of all panels, verify that GFCI is present on all panels, municipal power connections, lightning protection installations, and generator installations.

Contractor must submit a plan and schedule to be part of the QC Plan or a separate submittal to be tracked via the submittal register, indicating the inspection plan and timing.

1.9.1.3 THIRD PARTY STRUCTURAL ENGINEER INSPECTOR REQUIREMENTS

Structural Engineer must be a licensed graduate engineer with 10 years of experience, 5 years in the country where the project work is performed. Required experience includes, but is not limited to, inspecting concrete moment frame, concrete foundations, roof system and rebar and form work. Furnish CV for approval.

Contractor must submit a plan and schedule to be part of the QC Plan or a separate submittal to be tracked via the submittal register, indicating the inspection plan and timing.

Minimum inspections to be conducted: Bearing capacity of foundation soils, formwork and rebar of foundations, concrete placement of foundations. Formwork, rebar and concrete pour of moment frame. No concrete may be placed in forms without a preceding rebar inspection report and verification of functioning vibration equipment.

Engineer must review concrete test results and sign off on strength approvals.

1.10 ON-SITE REQUIRED PERSONNEL

The Contractor shall provide site personnel required in 01 45 05 for each project site location. Personnel marked as required on site at all times but be solely dedicated to only one project site.

END OF SECTION

2.0 CIVIL AND GEOTECHNICAL

Provide and perform civil engineering design and construction services as required to provide a complete, accessible, functional and usable project. The Contractor is required to extensively coordinate civil design and construction work with the scope of the other disciplines described in this SOW.

2.1 SCOPE SUMMARY

Civil works for this project include, but are not limited to, site survey, geotechnical investigation, site layout, demolition, earthwork, storm system, sanitary system, water system, pavement, and outdoor furnishings. Refer to the bid schedule for which of these are base bid or optional.

2.2 EXISTING CONDITIONS

The proposed project is located in N’Djamena, Togo. (Latitude 12°08’14“N, Longitude 15°01’54“W). See Att#1-Conceptual Site Plan

The existing site contains buildings, utilities, and vegetation. The site is relatively flat. There is no known topographic survey, as-built, or geotechnical information for the site. There are no known environmental protection areas or archeological preservation areas on the project site. There is an existing well located approximately 50 meters from the proposed building location. The capacity of the well is not known. There is no sanitary system at the site. There is no storm system at the site.

Prior to bid, investigate the general and local conditions which can affect the work and/or its cost, including but not limited to:

a. Location, size, material, and condition of existing structures, utilities, pavement, vegetation, and any other features. Site information provided to the Contractor by the Government is not to be considered accurate Site Survey information;

b. Weather, river stages, tides, or similar physical conditions at the site;

c. Surface and subsurface materials or obstacles to be encountered insofar as this information is reasonably ascertainable from an inspection of the site and due diligence research.

d. Mobilization and staging.

2.2.1 HAZARDOUS MATERIALS AND CONTAMINATION

There is no prior knowledge of any hazardous materials in the site’s soil. However, it is possible that hazardous material may be found during excavation. If hazardous materials are discovered, secure the area per Host Nation requirements, and notify the COR for further instruction.

2.2.2 UNEXPLODED ORDINANCE (UXO) CLEARANCE

There is no knowledge of any UXO material on the available site. If any ordnance material is unexpectedly discovered though, the Contractor must immediately notify the COR, cease work and perform all measures he is required for as per applicable laws and regulations. Once notified of ordnance material, the COR will notify the appropriate authority which will then engage required measures for UXO clearance and unblock the concerned area for further construction work after clearance.

2.3 DESIGN SUBMITTALS

Provide civil design submittals in accordance with RFP Section 01 33 16, DESIGN AFTER AWARD and SOW Section 1.0 – GENERAL. The submittals required for this project are stated in SOW Section 1.0 – GENERAL. Below are the contents required for each submittal.

35% Design Submittal:

a. Preliminary Design Analysis of civil features.

b. Final Site Survey (include in the Design Analysis).

c. Final Geotechnical Report (include in the Design Analysis).

d. Final Existing Conditions Plan.

e. Preliminary Demolition Plan

f. Preliminary Site Layout Plans - Indicate existing and proposed Civil features. Include other disciplines’ features (faded back) that affect the Civil Design (buildings, mechanical structures, electrical utilities, etc.).

g. Preliminary Grading Plans, including contours, and finish floor elevations.

h. Preliminary Pavement Plans

i. Preliminary Utility Plans (Storm, Sanitary, and Water).

j. Preliminary Outdoor Furnishings Plans

k. Preliminary Civil Specifications 95% Design Submittal:

a. Update all items from the previous Design Submittal to 95% (Final) Design. Incorporate all previous design comments.

b. Final Grading Profiles, Cross Sections, and Details. Include spot grades and slopes in Grading Plan.

c. Final Pavement Profiles, Cross Sections, and Details

d. Final Utility (Storm, Sanitary, and Water) Profiles, Cross Sections, and Details.

e. Final Fencing and Outdoor Furnishings Details

f. Final Civil Specifications

100% Submittal:

The 100% Submittal provides a complete and final set of contract documents ready for construction. Update all Final submittals from 95% to a corrected Final submittal. Address all previous government review comments before submitting.

As Built Drawing Submittal:

In addition to the as-built requirements discussed in RFP Section 00 78 00-CLOSEOUT SUBMITTALS, provide a topographical survey of the site per requirements of SOW Section 2.6-SITE SURVEY. Include existing utility lines or structures (both modified and unmodified) encountered in the construction footprint that were not located on the original Site Survey.

2.3.1 DESIGN ANALYSIS

Provide a Design Analysis for all Civil features that documents significant design choices and substantiates design compliance with contract requirements, applicable codes and standards. Documentation includes narrative, calculations, photographs, sketches, and catalog cut sheets. Reference all applicable regulations, standards, and criteria for the design. Reference sources are subject to Government approval. Provide design assumptions. For design choices, discuss alternative systems considered, and provide rationale for the selected alternative.

The Design Analysis includes but is not limited to:

a. Discussion of Site Layout constraints and design decisions, including but not limited to, land use, vehicle and pedestrian access, orientation of features on-site, setbacks from site features, topography, sun angles, minimizing utility lengths, minimizing earthwork and tree removal, and future expansion.

b. Discussion of Demolition constraints and design decisions. Include discussion on how access will be provided during construction, and how each utility will be maintained and operated during construction.

c. Discussion of Earthwork and Site Grading constraints and design decisions. Include pertinent geotechnical information that affects earthwork. Provide documentation for the 100 year flood elevation determination.

d. Discussion of Storm system constraints and design decisions.

e. Discussion of Sanitary system constraints and design decisions. For each section of pipe, include analyses indicating pipe size, friction factor, length, elevations at each end of pipe, slope, design flow (Q), maximum flow capacity, design depth of flow, design percentage full, and design flow velocity. Provide calculations for sizing of structures, including septic tanks and infiltration structures. Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities. Include pertinent geotechnical information that affects the sanitary system.

f. Discussion of Water system constraints, design decisions and source. Provide calculations to demonstrate water system meets project requirements, including demand, water pipe sizing, design water pressure and flow rates at buildings. Provide field conducted flow tests from nearest hydrants (or other relevant water structures if hydrants unavailable). Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities.

g. Discussion of Pavement constraints and design decisions. Provide calculations for the pavement section. Include pertinent geotechnical information that affects the pavement design.

h. Discussion of Outdoor Furnishings constraints and design decisions. Provide structural calculations for foundations if the foundation is designed by the Designer of Record. Calculations are not necessary if the foundation design is from an industry standard detail.

i. Site Survey as an appendix.

j. Geotechnical Investigation and Report as an appendix.

2.3.2 DESIGN DRAWINGS

Provide Civil design drawings of sufficient detail to address the requirements of each design submittal. Civil drawings include plans, profiles, cross sections, and details of Civil features for the project. Design drawings include all necessary information (labeling, dimensioning, legend, details, notes, etc.) to allow for complete understanding and constructability of all proposed features. Provide comprehensible differentiation between features that are proposed, existing, future, or proposed to be demolished by use of appropriate choice of line styles, line weights, and/or colors. In the absence of the Host Nation’s drafting requirements, reference USACE A/E/C Graphics Standard for graphic requirements.

2.3.3 SPECIFICATIONS

Provide Civil specifications of sufficient detail to address the requirements of each design submittal. Specifications, when combined with the design drawings, allow for complete understanding and constructability of all proposed Civil features.

2.4 DESIGN CRITERIA

Provide civil design in accordance with Host Nation codes. In the absence of Host Nation codes, use the latest release of the International Building Code (IBC) and the following codes and technical standards:

a. Uniform Facility Criteria (UFC) 3-201-01, Civil Engineering

b. UFC 3-220-01, Geotechnical Engineering

c. UFC 3-230-01, Water Storage, Distribution, and Transmission

d. UFC 3-240-01, Wastewater Collection

e. UFC 4-022-03, Security Fences and Gates

f. USACE A/E/C Graphics Standard (ERDC/ITL TR-12-1)

g. USACE AED Design Requirements: Sanitary Sewer & Septic System

h. WHO Fact Sheet 3.9 – Septic Tanks.

2.5 GEOTECHNICAL INVESTIGATION AND REPORT

Perform a geotechnical investigation and assessment of the project site to determine the subsurface conditions and geotechnical parameters for foundation, grading, and utility design. Perform the necessary amount of testing, borings and test pits at depths suitable for the project improvements. Include geotechnical investigation in areas where borrow material will be used. The Geotechnical work must be performed under the supervision of a professional geotechnical engineer registered with the jurisdiction having authority, and the report must be signed by the Geotechnical Engineer. In the absence of Host Nation codes, perform the geotechnical investigation and report per UFC 3-220-01, Geotechnical Engineering and IBC.

Coordinate testing locations with the COR to avoid impact to existing utilities and facility operations. Utility locates, permits, pavement removal and vegetation clearing is the Contractor’s responsibility. Repair disturbed areas with a concrete patch in paved areas, and compacted soil in non-paved areas. The repaired area must be flush with the adjacent surface. Following restoration, stake and flag each of the hole locations with boring identification numbers. In paved areas, use white paint on the paved surface to mark hole locations. Provide a map indicating the borehole and test pit locations.

2.5.1 REPORT

Include, as a minimum, the following information:

a. Description of field work completed and equipment used; names, signatures and stamps of licensed professionals involved; name of drilling company.

b. A description of site subsurface conditions, regional geology, and seismic conditions at the site.

c. Site map of borehole and test pit locations.

d. High resolution color digital photographs of each borehole and test pit location.

e. Test pit logs with classification of all subsurface materials. The logs must distinguish fill materials from native materials, include all in‐situ test results, and include groundwater depth information, if groundwater is encountered. Distinguish between bedrock and rock boulders.

f. Reports of all the field and laboratory testing.

g. Recommendations for allowable bearing capacity, expected settlement, type of foundation, minimum footing and grade beam dimensions, lateral earth pressure parameters, and minimum depth of foundation for footing and grade beams.

h. Recommendations for preparation, placement, and compaction of onsite soils, borrow material, soil replacement, soil amendment/treatment, structural fill, topsoil, and trench backfill. Include dewatering and temporary retaining structure needs.

i. Recommendations for pavement design and construction.

j. Recommendations for the storm and septic systems involving infiltration.

k. Calculations to support conclusions and recommendations

2.5.2 DESIGN DRAWINGS AND SPECIFICATIONS

On the design drawings and/or specifications, include geotechnical information that affect the design of the project, including but is not limited to, boring locations, boring logs, groundwater and frost depths, and any details that convey requirements for site preparation.

2.6 SITE SURVEY

Provide a topographic survey from a licensed surveyor that includes all existing site information needed to design and construct the project. Include x, y, and z coordinates to the nearest 0.005 meters, dimensions, material, and basic characteristics of all features within the project site limits, as well as all features outside of the project site limits that will affect the design and construction of the project. Research record drawings to obtain utility and pavement information that is not visible from the surface. Provide notes indicating the sources and any limitations or assumptions of the data. Provide a copy of the survey in CAD, in addition to the paper/electronic requirements of the Design Analysis. Locate and show on the topographic survey the following information:

a. Property boundary, public right of way, and easements. Include the address numbers, street names, and easement records.

b. Survey monuments and benchmarks. Include description.

c. Spot elevations covering the entire survey limits showing high points, low points, grade changes, and at sufficient intervals to represent the general character of the terrain.

d. Contours in intervals of 0.25 meters.

e. Buildings and other miscellaneous structures. Provide finish floor elevation.

f. Pavements. Include pavement type, thicknesses, joint patterns, and pavement markings. Include top of curb and gutter elevations.

g. Surface Drainage Features. Indicate normal water level for water bodies.

h. Utility lines and structures. Include rim elevations and invert elevations for utility structures; identification of lines as underground or aboveground; pipe sizes and materials.

i. Fences. Include height, material, direction of outrigger, gate locations and types.

j. Signs. Include sign text.

k. Trees/Woods: In wooded areas that trees are to be protected, locate outside drip line of wooded area, include general density and type of trees. For wooded areas with proposed tree removal, identify trees per Host Nation permitting requirements. Where selective clearing will be proposed, locate trees over 150 millimeter diameter at chest height, and include tree species, diameter at chest height, and dripline diameter.

l. Geotechnical boring locations.

m. Locate environmentally sensitive areas (determined and marked by others).

n. North arrow and scale of drawing.

o. Legend depicting the symbols and abbreviations used on the drawing.

p. Horizontal and vertical coordinate systems, date of survey, licensed surveyor name and license number.

Site information provided to the Contractor by the Government is not to be considered accurate Site Survey information. Utility field locates and as-built research are the responsibility of the Contractor.

Upon completion of construction, update the original survey with an As-built survey of the site as constructed, including underground utility locations and depths. Submit the As-built survey to the COR for approval.

Reference UFC 3-201-01, Civil Engineering, Section 2-2.2-SURVEYING for survey requirements. In the absence of the Host Nation’s horizontal and vertical coordinate system, use the Universal Transverse Mercator (UTM) coordinate system and base vertical coordinates on sea level.

2.7 SITE LAYOUT

Locate the proposed building and other improvements as indicated on Att #1 – Conceptual Site Plan. Amend the site layout as determined by the site-specific constraints, the owner’s preferences, accessibility, future expansion, and opportunities that are identified and evaluated as part of the Contractor’s scope of work. Locate the proposed building outside the dripline of existing trees. Align the proposed building on the same axis as adjacent buildings and property lines.

The Contractor is responsible for all aspects of the project whether they are shown on the conceptual plan or not.

2.8 DEMOLITION

Remove existing structures, utilities, pavement, vegetation, and any other features to construct the proposed improvements. Remove trees with driplines within the footprint of the proposed improvements. Provide straight, neat sawcuts at limits of pavement removal. Any contaminated soils discovered will require special testing and disposal per Host Nation requirements.

2.8.1 Construction Limits

Do not disturb the project site beyond necessary for installation of proposed construction. Do not disturb any areas past the site’s property line. Show demolition work and limits of disturbance in the drawings. Stake-out the limits of disturbance on-site with temporary fencing before beginning construction.

2.8.2 Items to Remain In Place within Construction Limits

Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government. Repair or replace damaged items as approved by the COR. Construct and maintain shoring, bracing, and supports as required. Ensure that structural elements are not overloaded. Provide new supports and reinforcement for existing construction weakened by demolition, deconstruction, or removal work. Repairs, reinforcement, or structural replacement require approval by the COR prior to performing said work.

2.8.3 Trees

Unless otherwise noted on Att#1-Conceptual Site plan, protect trees larger than 150mm diameter at chest height within the project site which might be damaged during construction, with a 1.8 m high fence around the dripline of the tree(s), which is assumed to be the extent of the tree’s roots. Mitigate for tree removal per Host Nation requirements.

2.8.4 Utilities

Any existing utilities encountered within the site boundary that are impacted by this project must be protected, or relocated if protection is not feasible. Relocate existing utility mains outside the structural zone of influence of proposed buildings and structures. Utilities impacted by this project that require decommissioning, or that are already out of service, must be removed up to the utility main and capped. Manholes or underground structures to be abandoned must be removed to a minimum depth of 50 centimeters below finish grade. Fill abandoned manhole or structure per Section 2.9-EARTHWORK requirements.

2.8.5 Dust, Debris, and Erosion Control

Prevent the spread of dust, debris, and erosion from the project site. Install erosion control measures before beginning construction. Sweep pavements as often as necessary to control the spread of debris. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, erosion, or pollution. Remove snow, dust, dirt, and debris from work areas daily. Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas. Apply local regulations regarding hauling and disposal.

Reference RFP Section 00 74 00-SPECIAL CONDITIONS and 01 30 00-GENERAL REQUIREMENTS for additional demolition, protection, and permitting requirements.

2.9 EARTHWORK

Perform all earth work necessary for the installation of the proposed improvements.

The Contractor is responsible for defining earthwork requirements in the plans and specifications. Include requirements for satisfactory material, borrow material, structural fill, topsoil, utility trenches, replacement and improvement of on-site soils, soil compaction (for subgrades of structures, paving, and landscaped areas), compaction for utility trenches, maximum lift depths, density testing frequency, maximum temporary and permanent slopes, and engineered support systems. The earthwork requirements must not conflict with the recommendations in the Contractor-provided Geotechnical Report.

Remove and save topsoil (approximately first 20 centimeters of excavation). When restoring the site to finish grade, place topsoil back in excavated areas that do not include proposed paving or structures. Excavated material (below topsoil), if satisfactory for reuse per the Geotechnical Report, may be used on the project site where fill is required. Unsatisfactory material, and surplus excavated material not required for fill, may be disposed of on-site in a location approved by the COR. Borrow material may be required for construction from sources off site. Borrow materials are to be free of hazardous materials and contaminants. Any soil brought in from off-site sources must be certified clean.

In the absence of Host Nation requirements and geotechnical recommendations, fill and backfill must be placed in layers of 20 centimeters loose thickness and compacted to a minimum 95% of the maximum dry density as determined by Host Nation test method equivalent to ASTM D-1557 (Modified Proctor test). Provide density tests on all lifts at a frequency of 1 test per 40 square meters for foundations and parking, and 1 test per 30 meters of road and utility trench. Round up to nearest whole number (i.e. a 25 square meter foundation requires one test). The location of all tests must be selected by the Contractor’s geotechnical engineer, and copies of all test results must be furnished to the COR. All structure foundation excavations must be inspected and approved by the Contractor’s Geotechnical Engineer prior to placing concrete. Repair earthwork areas as recommended by the Contractor’s Geotechnical Engineer, and approved by the COR.

Provide engineered soil support systems (i.e. shoring) as required for the construction of the proposed improvements. The Contractor is responsible for all dewatering necessary for earthwork.

2.9.1 SITE GRADING

Provide site grading that directs storm water runoff away from buildings and structures either by drainage systems or by grading as follows:

a. Finished grades of earth/grass/gravel surfaces adjacent to buildings and structures must slope away from all exterior edges with a minimum slope of 5% for the first 2 meters.

b. Finished grades of paved surfaces adjacent to buildings and structures must slope away from all exterior edges with a minimum slope of 2% for the first 2 meters.

c. Finished grades must not create stagnating water or ponding anywhere on the project site, nor create ponding on adjacent properties. Provide storm improvements if ponding is unavoidable.

d. Set finished floor elevations of building and concrete pads a minimum of 15 centimeters above finished grade, with the exception of finished grade at entry points of the building.

2.10 UTILITIES

This section applies to all project underground utilities located outside the building, including but not limited to, sanitary sewer, water supply, storm drainage, electrical, communications, gas, liquid fuel, and heat.

Provide utility main alignments a minimum of 3 meters outside the footprint of proposed structures. Provide utility line depths, bedding, and backfill as required by applicable requirements and geotechnical recommendations. Minimum cover over pipes is 0.6 meters; greater than frost penetration; or sufficient to support imposed dead and live loads for the pipe materials used; whichever is more stringent. Place plastic warning tape along the route of the buried pipe after installation at a height of 0.3 meters above the pipe.

Coordinate all required installation, relocation, improvement and protection of utilities held by third party (e.g. public or private utility). This includes coordination of any work to be performed by the utility owner. Choice of materials and products for utility installation must be coordinated with the utility owner (customer or third party) to ensure proper integration and compliance with existing systems and allow for easy maintenance and repair of the utilities in the future.

Provide corrosion protection for utilities that provides the minimum life expectancy specified in GENERAL Section 1.0. Any piping or equipment exposed to sunlight must be coated with protective coatings suitable for UV exposure with a minimum expected coating life of 10 years before recoating.

2.10.1 STORM SYSTEM

Provide a gravity storm drainage system to direct runoff away from improvements, eliminate ponding, and prevent erosion. At a minimum, connect building downspouts to splash blocks that drain away from foundations a minimum of 2 meters.

A pump system is not allowed. If using an infiltration or detention system, locate infiltration/detention facilities a minimum of 3 meters away and downhill from structures. Provide an overflow to the infiltration/detention system that will not damage improvements or cause erosion. In the absence of Host Nation requirements, design the storm drainage system per IBC, and UFC 3-201-01, Civil Engineering Chapter 3-Storm Drainage Systems.

2.10.2 SANITARY SYSTEM

Provide a septic system with tank, drainfield, piping, and all appurtenances. Size the system based on the occupancy and a 5 year maintenance schedule of pumping of the septic tank. Provide geotechnical fabric between soil and drainfield to prevent clogging of the drainfield. Locate the sanitary system to allow for maintenance and cleaning. The system must have the ability to be monitored, pumped out, and have an alarm system when the capacity is being reached that reports to the building. Locate the septic tank a minimum of 1.5 meters from buildings. Locate the drainfield a minimum of 3 meters from the septic tank, structures, and outside the dripline of trees. The system must work by gravity. A pump system is not allowed. If the Geotechnical Investigation determines that the soil percolation rate is less than 15 millimeter/hour, provide a holding tank with 10 day capacity instead a septic system. In the absence of Host Nation requirements, design the sanitary system per IBC, UFC 3-240-01, Wastewater Collection and WHO Fact Sheet 3.9 and USACE AED Design Requirements: Sanitary Sewer & Septic System.

After installation, test sanitary lines and structures for leakage and deflection per local codes. Provide test results to the COR. Locate and repair any sections failing to pass the required tests. Repeat the specified tests and inspections on the repaired sections.

See SOW Section 6.0 – MECHANICAL for indoor sanitary scope.

2.10.3 WATER SYSTEM

Provide a water system to connect the proposed building to an existing waterline as shown on Att#1-Conceptual Site Plan. Design the system to meet all flow requirements of the facility. In the absence of Host Nation requirements, design the water system per the IBC and UFC 3-230-01, Water Storage, Distribution, and Transmission.

After installation, test water supply lines according to local codes for leakage. Before the water supply line is put into final operation, disinfect the line, and then flush the line to remove traces of the sterilization agent. Test treated line for coliform bacteria. Provide test results to the COR. Locate and repair any sections failing to pass the required tests. Repeat the specified tests and inspections on the repaired sections.

See SOW Section 6.0 – MECHANICAL for indoor water scope.

2.10.4 FUEL DISTRIBUTION SYSTEM

2.10.4.1 STORAGE TANK

Provide a 4,400 liter Fuel Tank, double wall, above ground, with appurtenances. Provide piping, fittings, leak detection sensor, vent pipe, fill pipe connection, fill/spill prevention device, shutoff valves, POL spill capture capability, and other accessories as required to fully support the existing GFGI Generator. The storage tank must be appropriately grounded. Provide service hatch and fill hatch. Connections to fuel tanks must be 2" (50mm) dry break connections or equivalent. Fuel oil fill points must be lockable and have a warning bell to notify personnel filling the tank when it is full. All fill points must be mounted within the bund wall of the concrete pad to alleviate spillage.

Fuel tanks are to be provided with "Gauging chart" in addition to calibrated dipstick (additional copy for maintenance manuals required). Fuel contents gauges must be magnetic or diaphragm type or equivalent. A fuel gauge is required to indicate how full the tank is.

All fuel tanks must have:

2.10.4 2 FUEL PIPING

Provide piping from point of connection from tank to existing generator equipment. Provide schedule 40 carbon steel pipe, black. Provide black malleable iron, threaded fittings and threaded joints. Provide recirculation loop for the system. All underground piping must be double-wall and sleeved. Provide piping identification adhesive labels with flow arrows in compliance with the host nation standards. All text must be in the local language. Contractor must clean and test the fuel system and provide a testing report.

2.10.4.3 TRAINING

The contractor must provide written documentation (in both English and the local language) to the COR outlining what training occurred, how long the training lasted, and who was trained. The document must be dated and signed by each person in attendance to include the contractor.

2.11 PAVEMENT

Provide pavement as shown on Att#1-Conceptual Site Plan. For Portland cement concrete (PCC), reference SOW Section 4.0 - STRUCTURAL for concrete requirements. Perform subgrade tests for all pavements as described in Section 2.9 – EARTHWORK. Provide medium broom finish on all PCC.

2.11.1 BUILDING APRON

Provide minimum 1 meter wide, 10 centimeter thick, PCC building apron around the entire building. Install concrete over minimum 10 centimeters aggregate. Increase thickness of concrete at edge with adjacent ground so that there is a minimum of 10 centimeters of bury on the concrete. Provide expansion joint between building and apron.

2.11.2 PADS FOR FUEL TANK

Provide PCC pad for fuel tank. Locate pad based on optimum operation and maintenance. Minimum horizontal dimensions of pad is 5 meters x 2.5 meters. Thickness of the concrete pad and subgrade material must be based on structural requirements. Provide secondary containment in the pad. Capacity of the secondary containment for the fuel tank must be minimum 150 % of the fuel tank capacity. If the fuel tank itself contains secondary treatment, the pad does not require secondary containment, if allowed by Host Nation requirements.

2.11.2 PAD FOR GFGI ANTENNA

Provide a concrete pad for a future GFGI Antenna (Not in Contract). See SOW Section 4.0-STURCTURAL. Coordinate exact location of the pad with the provider of the Antenna.

2.12 FENCE

Provide a minimum 2 meter high, galvanized metal fence around the building and antenna as shown on Att #1-Conceptual Site Plan. The fencing must be a minimum 3 meters away from the building, and a minimum 1 meter away from the antenna. Provide one 4 meter wide double swing gate to access the mechanical, electrical, and communication rooms. Provide one 1 meter wide personnel gate to access the building at the main entrance. Provide a lock for each gate with 2 keys for each lock. Provide electrical grounding every 30 meters of fence, fence corner, and at gate posts (2 per gate). Provide fencing and gates per USACE Protective Design Center Standard Fence Drawings (FE5 Chain-Link Security Fence Details and FE5 Chain-Link Security Fence Gate Details). Host Nation equivalent fencing and gates may be acceptable per COR approval.

2.13 OUTDOOR FURNISHINGS

2.13.1 BOLLARDS

Provide bollards to protect the fuel storage tank, and antenna. Consistently space bollards 1 meter apart (+/- 0.2 meters) around protected structures. Bollard placement must not impact operation and maintenance of the structures. Bollards must be a minimum 1.22 meter high above ground level, 10 centimeters diameter steel pipe filled with concrete, painted yellow, and embedded in a Portland cement concrete foundation. Steel pipe wall must be minimum 6 millimeter thick. The foundation must not be attached to the building foundation or the slab.

3.0 ARCHITECTURAL

3.1 PROJECT DESCRIPTION

Design and construction work of a new single-story masonry structure fusion center with sloped roof in N’Djamena, Chad. Refer to Attachment #2 “Conceptual Floor Plan” and Attachment #3 “Room Data Sheets” for the functional, spatial, finish, and equipment requirements of this facility.

Extensive coordination will be required between the architectural work and the civil, geotechnical, structural, mechanical and electrical requirements of this project.

3.1.1 DRAWINGS

The Contractor must develop a design based on the functional requirements, conceptual floor plans, and space allocations given in the RFP. The design must incorporate all referenced codes and regulations. The Contractor must provide a design and construction package that uses the design details and features given or referenced in this RFP. Additional details must be created by the Contractor as required, but must conform to the requirements of this RFP and are subject to the approval of the COR.

3.1.2 DESIGN SUBMITTALS

The contractor must make the architectural submittals after contract award in accordance with Section 01 33 16, DESIGN AFTER AWARD.

3.1.2.1 35% DESIGN SUBMISSION

35% Submission: Include the following drawings and reports as applicable to the project:

a. Floor Plans – Provide all floor plans, indicating room names and basic dimensions;

b. Ceiling Plans – Provide reflected ceiling plans for all rooms, indicating ceiling materials and fixtures;

c. Building Elevations – Provide all building elevations indicating all exterior materials;

d. Roof Plan – Provide a plan of all roof areas, indicating direction of slope and method of drainage;

e. Building Section – Indicate heights of critical building elements;

f. Wall Sections – Provide a typical interior and exterior wall section describing wall materials;

g. Room Finish Schedule – Provide intended wall, floor, and ceiling finishes for all rooms in the project;

h. Furniture/Equipment Plan – Provide plans showing all intended furniture/equipment (both GFCI and CFCI) and dimension clearances between furniture/equipment and the structure;

i. Outline Specifications – Provide outline specifications for all work and materials; and

j. Design Analysis – Provide a narrative indicating how the design meets the code requirements of this SOW.

3.1.2.2 95% DESIGN SUBMISSION

The 95% Submittal provides a complete and final set of contract documents essentially ready for construction by the D/B Contractor. All previous government review comments must have been addressed. Include the following drawings and reports:

a. All required documents from the 35% Submission updated to incorporate all comments from the 35% Review;

b. Section and Plan Details – Provide enlarged details of critical intersections indicating all materials (roof details, exterior wall details, wall intersections, etc.);

c. Interior Elevations – Provide enlarged interior elevations indicating all materials, finishes, and coordination with other building systems. At a minimum, provide interior elevations for all toilet and shower rooms;

d. Interior Details – Provide details for casework, equipment mounting, ceilings, floor finishes, etc.;

e. Window, Door, and Hardware Schedule – Provide size, function, and material for all windows and doors in the project;

f. Window and Door Details – Provide enlarged details of door and window head, jamb, and sills;

g. Color Board – Provide a material and color board; and

h. Detailed Specifications – Provide detailed specifications with line items for all work and materials.

3.1.2.3 100% (CORRECTED FINAL) DESIGN SUBMISSION

The 100% Submittal provides a corrected final set of contract documents ready for construction by the D/B Contractor. All government review comments from all submittal phases must have been addressed and incorporated. Include all of the required drawings and documents from previous submittals.

3.2 TECHNICAL CRITERIA AND STANDARDS

Project design must be in accordance with the requirements outlined in section 1.7.

3.2.1 LIFE SAFETY REQUIREMENTS

The Contractor must meet all Host Nation and local Fire Suppression System codes and requirements.

All structures to be provided must have exits and means of egress that comply with current Host Nation codes and standards, or in accordance with US codes and standards.

In the absence of Host Nation codes and standards, for individual concerns of Life Safety the Contractor must follow the NFPA 101 Life Safety Code.

3.2.2 HANDICAPPED ACCESSIBILITY REQUIREMENTS

The facility must be designed to meet Host Nation handicap accessibility requirements. At a minimum, the facility must be designed to meet the following accessibility requirements:

a. All changes in level must meet the requirements of Section 303 of the U.S. ADA-ABA Guidelines, 2004.

b. All doors must be designed to meet the door clear width and maneuvering clearance requirements (assume front approach for all doors) of Section 404 of the U.S. ADA-ABA Guidelines, 2004.

c. All toilet rooms must be designed with toilet location and grab bars meeting the requirements of Section 604 of the U.S. ADA-ABA Guidelines, 2004.

3.3 GENERAL SCOPE OF WORK

The architectural elements of this facility must be designed to withstand all site-specific…