A.02.17 Att 9_SOW_Adjaha Benin.pdf

US Army Corps of Engineers Europe District

APO AE 09049

ar165

Statement of Work Project Number:

BN-HA-2020-00039976

Four Classrooms and Latrine Construction at CEG Adjaha Secondary School

Grand Popo, Benin

Prepared by:

Design Section

Engineering Branch

07JUN2022

01 10 10 Statement of Work CEG Adjaha Secondary School - Grand Popo, Benin

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SECTION 01 10 10

STATEMENT OF WORK

SECTION TABLE OF CONTENTS:

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL

4 STRUCTURAL

5 ELECTRICAL & COMMUNICATIONS

6 MECHANICAL

ATTACHMENTS

Attachment # 1 Location Map Attachment # 2 Conceptual Site Plan Attachment # 3 Conceptual Architectural Drawings Attachment # 4 Structural Calculations Guideline Attachment # 5 Dedication Plaque Attachment # 6 TAG13 The Design of Ventilated Improved Pit Latrines Attachment # 7 300 Liter Rainwater Catchment Tank Example

1.0 GENERAL

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) provides parameters for a design-build project for construction of a facility at CEG Adjaha Secondary School in Grand Popo, Southwest Benin.; Latitude 6.323479 N, Longitude 1.8327512 E (See Attachment #1-Location Map.)

The project includes the following general items of work, detailed requirements are contained elsewhere in this Statement of Work:

a. Clear, grub, and grade the site

b. Construct one (1) new school building with four (4) classrooms

c. Construct two (2) new multi-compartment ventilated improved pit (VIP) Latrine

Buildings

d. Provide site improvements as required to support the facilities

e. Provide electrical system for school building.

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). The proposal price must include all design, calculations, approvals, certificates, fees, labor, material, equipment, direct overhead, indirect overhead, general and administrative expenses (G&A) and general conditions to complete this project as described in the SOW.

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

1.2.1 BASE ITEMS AND OPTIONAL ITEMS

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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 Specification Section 01 22 00 PRICE AND PAYMENT PROCEDURES. The Schedule of Items identifies the breakdown between the individual base items 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 or Optional Items. Consider all items not specifically identified in the Optional Items as part of the Base Items.

1.3 FUNCTIONAL AREAS

Refer to the attached drawings for a depiction of the required functional areas and spatial adjacencies for the site and new facilities/structures.

1.4 SUBMITTALS

Designer of Record approval is required for submittals with a “DA” designation.

Government approval is required for submittals with a “G” or “GA” designation.

Submittals having an “FIO” designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-01 Preconstruction Submittals

Demolition Plan; G

SD-05 Design Data

65% Pre-Final Design; DA/GA

95% Final Design; DA/GA

100% Corrected Final Design; DA/GA

SD-06 Test Reports

Test Results and Reports; FIO

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 this Specification.

1.4.2 TEST REPORTS

Provide all test results and reports identified in this SOW to the Government as a submittal in accordance with Specification Section 01 33 00 SUBMITTAL PROCEDURES.

Submittals will be considered for information only (FIO) submittals unless specifically identified as a submittal requiring government approval. Coordinate with the Contracting Officer (KO) after award for the specific items to be included in the submittal register.

1.5 MATERIALS AND EQUIPMENT

Materials and products used must be durable, heavy duty, industry standard. 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.

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Provide a nameplate secured to each major piece of equipment. Each nameplate must have the manufacturer’s name, address, contact information, type or style, model or serial number, and catalog number. The definition of a “major piece of equipment” is at the discretion of the KO.

1.5.1 LIFE-SPAN

Construction must have an expected life span of 25 years.

1.5.2 MAINTAINABILITY

Provide low maintenance materials and systems appropriate for the project climate and location.

1.5.3 OPERABILITY

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

1.5.4 STANDARDIZATION

Provide standardized materials, products, equipment, and systems to minimize the requirements for replacement parts, storage facilities, and service requirements.

1.6 DESIGN DIMENSIONS

Develop the design using the metric system.

1.7 DESIGN CRITERIA

Project design, site facilities, utility systems and material standards must be in accordance with Host Nation building codes (current versions as of the date of RFP, unless otherwise indicated). In the absence of Host Nation building codes, use the International Building Code (IBC) and codes, technical standards, and regulations referenced in this RFP.

While this RFP references various source standards and specifications, all design documents must 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. Apply the more restrictive standards when conflicts arise between the requirements of this RFP and any referenced or other applicable codes, standards or regulations. If equivalency cannot be met, use the more stringent requirement and quote both codes verbatim in correspondence to the KO. The designer is responsible to determine the required material and execution standards where specific standards are not indicated.

Provide an electronic copy of the local Host Nation standards and building codes in their original language as related to facility design and construction.

1.8 SPECIAL CONSTRUCTION REQUIREMENTS

1.8.1 DEMOLITION

The Contractor is responsible for all required demolition as indicated in this scope.

Submit a Demolition Plan to be tracked via the submittal register indicating all demolition, abatement, and disposal methods.

1.8.1.1 ABATEMENT AND DISPOSAL

All demolished materials must be abated and disposed of in accordance with local laws, codes and regulations. The Contractor is responsible for all required testing before, during and after demolitions as well as for all required compliance with safety standards.

1.8.1.2 DEMOLITION AND DISPOSAL OF HAZARDOUS MATERIAL

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The Contractor is responsible to survey the site and determine if hazardous materials exist. If hazardous materials are found to exist, immediately notify the KO, and provide the KO with the results of the relevant sampling and testing.

Provide the hazardous material report to the KO no later than 30 days after Notice to Proceed (NTP) for information and approval.

END OF SECTION

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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, earthwork, landscaping, storm system, and water system. Refer to the bid schedule for which of these are base bid or optional.

2.2 EXISTING CONDITIONS

2.2.1 TOPOGRAPHY

There is no known topographic survey for the project site. The existing site contains buildings, utilities, and vegetation as shown on Attachment #2 - Conceptual Site Plan. The site is generally flat and has frequent flooding. The existing information shown on Attachment #2 - Conceptual Site Plan was compiled from google earth, and site photos.

2.2.2 UTILITIES

There is no storm system at the site.

There is no water system at the site. An old water connection is located on site but it is not functional.

There is no sanitary system at the site.

The existing Administration Building shown on the attached Conceptual Site Plan has power. The electrical meter is located on the exterior wall of a public building approximately 260 meters east of the site. A transformer is located approximately 500 meters northeast of the project site. Refer to the other sections of this SOW for details of these existing utilities.

Contractor must verify all utility locations (surface and subsurface) in the field prior to the first design submittal.

2.2.3 GEOTECHNICAL

There is no geotechnical information available for the project site.

The Contractor must perform a Geotechnical Investigation and submit a Geotechnical Report as part of the Design Analysis. Refer to other sections of this SOW for the requirements of the Geotechnical Investigations and Report.

2.2.4 ENVIRONMENTAL

There are no known environmental protection areas or archeological preservation areas on the project site. There is no prior knowledge of any hazardous or contaminated materials in the site’s soil.

2.2.5 EXISTING CONDITIONS INVESTIGATION

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

a. Weather, floodplain elevations, or similar physical conditions at the site.

b. 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 of as-built drawings, geotechnical reports, environmental reports, and publicly available information on the site.

c. Mobilization and staging constraints.

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2.3 DESIGN SUBMITTALS

Provide civil design submittals in accordance with RFP Section 01 33 16-DESIGN AFTER AWARD and in compliance with SOW Section 1.0 – GENERAL.

65% Design Submittal:

a. Pre-Final 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. Pre-Final 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.).

f. Pre-Final Grading Plans including contours, and finished floor elevations, Grading Profiles, Cross Sections, and Details. Include spot grades and slopes in Grading Plan. Include erosion control design.

g. Pre-Final Civil Specifications.

95% Design Submittal:

Update all items from the 65% Design Submittal to 95% (Final) Design. Incorporate all 65% design comments.

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 01 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

Submit a Design Analysis in accordance with RFP Section 01 33 16-DESIGN AFTER AWARD. 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, minimizing earthwork and tree removal, and future expansion.

b. Discussion of Earthwork and Site Grading constraints and design decisions.

Provide cut and fill calculations. Include pertinent geotechnical information that affects earthwork.

c. Discussion of Storm system constraints and design decisions. Provide documentation for the 100 year flood elevation determination.

d. Discussion of Landscaping constraints and design decisions.

e. Site Survey as an appendix.

f. Geotechnical Investigation and Report as an appendix.

2.3.2 DESIGN DRAWINGS

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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. Civil drawings also include temporary construction plans/methods that affect the design and construction of the project.

These temporary plans include mobilization, traffic control, erosion control, dewatering, shoring, construction sequence, etc. 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. 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. USACE A/E/C Graphics Standard (ERDC/ITL TR-12-1)

d. Architectural Barriers Act (ABA)

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 KO 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.

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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. Soil Resistivity.

j. Deep foundation information.

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

l. 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 any details that convey requirements for site preparation.

2.6 SITE SURVEY

Conduct and provide a topographic survey from a licensed surveyor that includes all existing site information needed to design and construct the project. Survey must be conducted prior to the first design submittal. 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 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. 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. Surface Drainage Features. Indicate normal water level for water bodies.

g. Utility lines and structures. Include rim elevations and invert elevations for utility structures; identification of lines as underground or aboveground;

pipe sizes and materials.

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

i. Signs. Include sign text.

j. Trees: Identify trees per Host Nation permitting requirements.

k. Geotechnical boring locations.

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

m. North arrow and scale of drawing.

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

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

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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 KO for approval.

Reference UFC 3-201-01, Civil Engineering, Section 2-2.2-SURVEYING for survey requirements. Use the Universal Transverse Mercator (UTM) coordinate system. The vertical coordinate system must be based on sea level.

2.7 SITE LAYOUT

Locate the proposed building and other improvements as indicated on the attached 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 a minimum of 3 meters away from existing buildings. Locate the proposed building outside the dripline of existing trees.

Align the proposed building on the same axis as adjacent buildings and property lines. Locate the latrine a minimum of 30m from the proposed school.

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 vegetation required to construct the proposed improvements. All contaminated soils discovered 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 required by the KO.

2.8.3 TREES

Unless otherwise noted on the attached Conceptual Site plan, protect trees which might be damaged during construction, with a 1.8 meter high fence around the dripline of the tree(s), which is assumed to be the extent of the tree’s roots.

Trees are defined as larger than 150mm diameter at 1.3 meters above existing grade. Mitigate for tree removal per Host Nation requirements.

2.8.4 UTILITIES

Any existing utilities encountered that are impacted by this project must be protected, or relocated if protection is not feasible. Remove existing and abandoned utilities under or within 3.0 m of the foundation of any proposed facility or building foundation. Reroute existing utilities to remain in accordance with SOW Section 2.10-UTILITIES. Abandoned utilities must be removed up to the utility main (or next utility main junction) 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.

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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. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, erosion, or pollution. Remove 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.

2.8.6 ADDITIONAL REQUIREMENTS

Reference RFP Section 00 74 01-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.

2.9.1 PLANS AND SPECIFICATIONS

Define 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.

2.9.2 CONTAMINATED SOIL

Inspect and test all soil according to Host Nation requirements. If hazardous materials are discovered, cease excavation, secure the area, and notify the KO for further guidance.

2.9.3 CULTURAL RESOURCES

Cultural resources, such as archaeological remains, may be uncovered during excavation operations. If suspected cultural remains are found, cease excavation, secure the area, and notify the KO for further guidance.

2.9.4 TOPSOIL

Remove and save topsoil (approximately first 20 centimeters of excavation).

Separate out subsoil, brush, litter, weeds, roots, stones larger than 25 mm in diameter, and other materials that would interfere with planting and maintenance operations. When restoring the site to finish grade, place topsoil back in excavated areas that do not include proposed paving or structures.

2.9.5 SATISFACTORY MATERIAL

Excavated material (below topsoil), if satisfactory for reuse per the Contractor’s Geotechnical Engineer, may be used on the project site where fill is required.

Unsatisfactory material, and surplus excavated material not required for fill, must be disposed of offsite, and is the responsibility of the Contractor. 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.

2.9.6 BACKFILL COMPACTION

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

7-Jun-22 Page 12 of 41 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 KO. 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 KO.

2.9.7 ENGINEERED SOIL SUPPORT SYSTEMS

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.

2.9.8 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 building finish floor elevations at a minimum of 110 centimeters above surrounding area proposed grade or 30 centimeters above the local 100 year flood level, whichever is more stringent.

e. Provide 2 meters of gravel erosion protection around the perimeter of the proposed school building.

Site grading around the building must meet Host Nation accessibility guidelines.

The Contractor must limit proposed landscape slopes to a maximum 4H:1V for grass areas requiring mowing and 2H:1V for non-grass areas, which require non-erodible surface (i.e. rock, shrubs with mulch).

2.10 UTILITIES

This section applies to all project underground utilities located outside the building, including but not limited to storm drainage and electrical. See Sections 5.0-ELECTRICAL & COMMUNICATIONS and Section 6.0-MECHANICAL for additional utility requirements.

Proposed utility main alignments must be at least 3.0 meters from facility or building foundations, except for building connections. Provide horizontal and vertical separation between new and existing utilities for rehabilitation, maintenance, repair or replacement. Provide utility line depths, bedding, and backfill as required by applicable requirements and geotechnical recommendations.

Minimum cover over pipes is 0.6 meters; 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.

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Provide utility materials per IBC requirements. Provide corrosion protection for utilities that provides the minimum life expectancy specified in Section 1.0- GENERAL. 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 drainage ditches, swales, or other gravity-driven drainage features to divert surface runoff away from and around existing or proposed structures.

Design drainage features are to eliminate ponding and be protected against erosion. Connect the school building downspouts to splash blocks that drain a minimum of 2 meters away from foundations. Provide 2 m of gravel erosion protection around the perimeter of the proposed school building.

Connect each latrine building roof gutters and downspouts to two rainwater tanks as shown on Attachment #2 - Conceptual Site Plan. Size tanks based on rainfall and usage calculations. Locate tanks out of pathways and windows. For each rainwater tank, provide a spigot at the bottom of each tank. Below the spigot, provide a splash block that will drain water away from building foundations a minimum of 3 meters per site grading requirements. Provide an overflow system from the tanks to splash blocks that drain away from foundations a minimum of 3 meters per site grading requirements. Provide insect screens to all open orifices to the tank system. Provide UV resistant tanks. Provide concrete foundation to support rainwater collection tank, and install the bottom of the tank a minimum of 45 centimeters above finish grade. Provide structural tie downs for the tank. Provide an opening for cleaning and allow access into the tanks. Provide system in order to divert first flush from the roofs that may be contaminated with dust, animal droppings and dirt so that it does enter the tank. Provide sign next to tap that shows a pictogram “not for drinking”. Sign must be firmly fastened aluminum or other durable weather resistive material (no adhesive sticker allowed).

2.11 LANDSCAPING

Provide grass seed and 20 centimeters of topsoil on the site in areas that do not have pavement or a building within the limits of disturbance. Seeds must be locally sourced from a certified plant nursery, and native to the area. Provide seed coverage density per manufacturer/supplier’s recommendations. Provide watering, weeding, and any other necessary care to establish growth. Limit planting to times of the year per local codes and/or manufacturer/supplier’s recommendations. Replace topsoil and seeds, at Contractor’s expense, in areas which do not have new growth coverage of 75% before the warranty period ends.

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3.0 ARCHITECTURAL

3.1 PROJECT DESCRIPTION

Provide and perform architectural design and construction services to provide a complete, accessible, functional, and usable four-classrooms building and latrines for CEG Adjaha Secondary School in Grand Popo, Southwest Benin.

Provide new single-story, solid masonry / concrete buildings that will serve as school building and latrines.

Extensive coordination is required between the architectural work and the civil, geotechnical, structural, fire protection, mechanical, and electrical requirements of this project.

3.1.1 DESIGN

Provide a design and construction package that uses the space allocations, functional adjacencies, design details, and features given or referenced in this RFP. The design must incorporate all referenced codes and regulations. The Contractor is responsible for creating additional details as required to complete a full design. All details must conform to the requirements of this RFP and are subject to the approval of the KO. A schematic design has been attached for reference. The schematic plans are provided for diagrammatic purposes only and do not necessarily represent an approved floor plan or design. The Contractor is responsible for providing a design that meets all requirements of the User and the codes and criteria referenced in this Statement or Work.

3.1.2 DESIGN SUBMITTALS

Provide all architectural submittals after contract award in accordance with Section 01 33 16 DESIGN AFTER AWARD and Section 01 33 00 SUBMITTAL PROCEDURES.

Prepare and submit the documents listed below at the submittals indicated.

3.1.2.1 65% DESIGN SUBMISSION

Include the following drawings and reports as applicable to the project:

a. Code Summary – Provide a tabular code compliance summary indicating Host Nation and/or IBC life safety requirements for all new facilities.

b. Life Safety Plans – Provide plans depicting smoke/fire resistance ratings, egress routes, dead-end corridors, exits, and other aspects of life safety pertaining to the design.

c. Floor Plans – Provide all floor plans, indicating room names, areas, and basic dimensions, scale 1:50.

d. Building Elevations – Provide all building elevations indicating all exterior materials.

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

f. Building Section – Indicate heights of critical building elements.

g. Wall Section - Provide a typical interior and exterior wall section for each building – describe wall materials.

h. Pre-Final Design Analysis – Provide a narrative explaining the design and indicating how the design and materials meet the requirements of this SOW.

i. Pre-Final Specifications – Provide detailed explanations of requirements for all performed work or provide product specific manufacturer information (brochures, technical information, cut sheets) for all materials and products to be provided/installed.

3.1.2.3 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 as applicable to the project:

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a. All documents from the 65% submittal updated to incorporate 65% review comments.

b. Floor Plans – Provide all floor plans, indicating room names, areas, and dimensions, scale 1:50.

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.

f. Wall Sections – Provide sufficient wall section(s) to indicate all materials and different conditions.

g. Section and Plan Details – Provide details of critical building intersections.

h. Window and Door Schedule – Provide a schedule of all windows and doors, indicating sizes, hardware, and operation.

i. Finish Schedule – Indicate all proposed finishes.

j. Final Design Analysis – Provide a finalized narrative describing all work to be performed on the project and how it meets the functional and code requirements of the project. Provide product specific manufacturer information (brochures, technical information, cut sheets) for all materials and products to be provided/installed.

k. Final Specifications – Provide line items and detailed descriptions of all work to be performed.

3.1.2.4 100% DESIGN SUBMISSION

The 100% Submittal provides a complete and final set of contract documents ready for construction by the D/B Contractor. All previous government review comments must have been addressed. Include all drawings, specifications and calculations from the 95% Submittal updated to incorporate all previous review comments.

3.2 TECHNICAL CRITERIA AND STANDARDS

Design and construct the project in accordance with the requirements outlined in Section 1.7 DESIGN CRITERIA.

3.2.1 LIFE SAFETY REQUIREMENTS

The Design 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 appropriate US codes and standards, including the International Building Code (IBC).

3.2.2 HANDICAPPED ACCESSIBILITY REQUIREMENTS

All facilities must meet applicable Host Nation handicapped accessibility requirements.

3.3 GENERAL SCOPE OF WORK

Design the architectural elements of this facility to withstand all site-specific environmental conditions such as wide seasonal temperature swings, local wind, rain, snow and earthquake conditions. All architectural features must be appropriately braced for anticipated seismic activity. The Contractor may propose alternate building materials to meet the facility’s requirements, but final selection of materials is subject to the approval of the KO. Consider economics not only in the initial acquisition, but also in the future maintenance of the materials, when selecting materials and building systems to be incorporated into

7-Jun-22 Page 16 of 41 the project. When requested, the Contractor must provide documentation demonstrating that a chosen alternative material is life cycle cost effective.

3.3.1. SCHOOL BUILDING

Provide one (1) one-story, reinforced concrete and masonry School Building with a sloped, gabled metal roof. Exterior finishes include plastered and painted exterior walls and metal panel roofing. Colors of exterior finishes must match adjacent buildings of the same type. The School Building must comply with all Host Nation Ministry of Secondary Education and Technical Vocational Training requirements. Provide the following functional areas for the School Building:

Room

Room Name Function Approximate Size (m2)

101 Classroom Classroom for up to 50 students 90.00 102 Classroom Classroom for up to 50 students 90.00 103 Classroom Classroom for up to 50 students 90.00 104 Classroom Classroom for up to 50 students 90.00 105 Terrace Covered, open-air walkway 81.84

Total Net Area to be provided 441.84 m2.

3.3.2 LATRINE BUILDING 1

Provide one (1), one-story, reinforced concrete and masonry multi-compartment Latrine Building with concrete roof slabs that drain to rainwater collection tanks for hand washing. Each building must have four latrine compartments. Exterior finishes include plastered and painted exterior walls. Colors of exterior finishes must match adjacent buildings of the same type. Provide ventilated improved pit (VIP) style latrines complying with all Host Nation requirements and the design guidance provided in Attachment #6 TAG13 The Design of Ventilated Improved Pit Latrines. Provide the following functional areas for each Latrine Building:

Room # Room Name Function Approximate

Size (m2) 101 Latrine Latrine compartment with two (2) holes 1.76 102 Latrine Latrine compartment with two (2) holes 1.76 103 Latrine Latrine compartment with two (2) holes 1.76 104 Latrine Latrine compartment with two (2) holes 1.76

- Pit Vented underground waste vault -

- Pit Vented underground waste vault -

- Pit Vented underground waste vault -

- Pit Vented underground waste vault -

- Pit Vented underground waste vault -

Total Net Area to be provided 7.02 m2.

3.3.3 LATRINE BUILDING 2

Provide one (1), one-story, reinforced concrete and masonry multi-compartment Latrine Building with concrete roof slabs that drain to rainwater collection tanks for hand washing. Each building must have four latrine compartments. Exterior finishes include plastered and painted exterior walls. Colors of exterior finishes must match adjacent buildings of the same type. Provide ventilated improved pit (VIP) style latrines complying with all Host Nation requirements and the design guidance provided in Attachment #6 TAG13 The Design of Ventilated Improved Pit Latrines. Provide the following functional areas for each Latrine Building:

Room # Room Name Function Approximate

Size (m2) 101 Latrine Latrine compartment with two (2) holes 1.76

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102 Latrine Latrine compartment with two (2) holes 1.76 103 Latrine Latrine compartment with two (2) holes 1.76 104 Latrine Latrine compartment with two (2) holes 1.76

- Pit Vented underground waste vault -

- Pit Vented underground waste vault -

- Pit Vented underground waste vault -

- Pit Vented underground waste vault -

- Pit Vented underground waste vault -

Total Net Area to be provided 7.02 m2.

3.4 DETAILED SCOPE OF WORK

The Contractor is responsible for the following specific tasks required for the construction of this facility.

3.4.1 DEMOLITION

Demolition of architectural systems is not required.

3.4.2 BUILDING SYSTEM AND MATERIALS

The intent of this RFP is to allow the Contractor the maximum flexibility to design and construct this facility in an economical manner without sacrificing good engineering practices, quality materials and systems. The Government requires low or no maintenance finish materials to the greatest extent possible. Building materials as described herein for roofing, walls, ceilings, doors, windows and floors are minimum requirements and may require revision based on code compliance and criteria.

3.4.2.1 FIRE PROTECTION RATINGS OF INTERIOR FINISHES

All interior finishes must conform to Host Nation fire protection standards/requirements or equivalent US standards/requirements.

3.4.2.2 ACOUSTICAL DESIGN

Doors, walls, floors, and ceilings must meet the minimum sound protection per Host Nation requirements.

3.4.2.3 THERMAL INSULATION

Provide thermal insulation in accordance with Host Nation and local requirements.

3.4.2.4 CORROSION PREVENTION

All exterior materials and finishes must be appropriate for continuous exterior exposure. All materials susceptible to UV degradation must contain UV inhibitors.

Provide corrosion resistant coatings on all materials susceptible to corrosion.

Coatings must be applied in the factory prior to delivery to the maximum extent practicable. Physically separate dissimilar metals with non-conductive hardware.

Do not install aluminum in direct contact with concrete. Treat all wood with preservatives where it is contact with concrete or exposed to the exterior. Cover all exterior wood with metal flashing or exterior grade paint. Do not install wood in contact with soil.

3.4.3 EXTERIOR CONSTRUCTION WORK

Provide the following exterior architectural systems.

3.4.3.1 EXTERIOR WALLS

Design and construct new exterior walls in accordance with (IAW) the requirements of this SOW. Refer to Section 4.0 STRUCTURAL. Exterior walls must have smoke/fire resistance ratings as required by Host Nation, and local fire and life safety codes. Provide exterior wall finishes appropriate for the wall structure as required below.

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3.4.3.1.1 EXTERIOR WALL PLASTER

Provide new exterior cementitious plaster and paint on all concrete and masonry surfaces. Steel trowel to a smooth surface. Paint with one coat of approved alkali resistant undercoat paint and two coats of super acrylic finish. Paint must be lead free, suitable for exterior applications, washable when dry. Submit a color sample of the paint along with the manufacturer's catalog data including application instructions and product data for KO's acceptance.

3.4.3.2 EXTERIOR DOORS

Provide new exterior doors in accordance with the functional requirements of this facility.

3.4.3.2.1 EXTERIOR CLASSROOM DOORS

Provide new, locally constructed metal double-leaf doors and frames with mortised lockset. Minimum door size must be 1.40 x 2.10 m (w x h). Reinforce flat metal sheets to prevent oil-canning. All metal must be covered with a suitable rust-inhibitive primer and then be painted with a glossy protective coating. All door frames must be mounted flush with the surrounding walls and seams must be sealed.

Each door must have the following hardware as a minimum:

a. Three hinges on each leaf;

b. Lever latch handles;

c. Fully mortised lockset; and

d. Top and bottom sliding bolts to secure inactive door leaf in the closed position.

3.4.3.2.2 EXTERIOR LATRINE DOORS

Provide new, locally constructed metal doors and frames. Reinforce flat metal sheets to prevent oil-canning. Minimum door size must be 1.00 x 2.10 m (w x h).

Door panel must be partial height in frame to allow for light and ventilation above and below the door panel. All metal must be covered with a suitable rust-inhibitive primer and then be painted with a glossy protective coating. All door frames must be mounted flush with surrounding walls and seams must be sealed.

Each door must have the following hardware as a minimum:

a. Three hinges on each leaf; and

b. Sliding bolt with padlock hasp to secure door in the closed position.

Provide one heavy-duty padlock (with a minimum of two keys) with each door.

3.4.3.3 EXTERIOR WINDOWS

Provide exterior windows in accordance with the functional requirements of this facility.

3.4.3.3.1 EXTERIOR LOUVERED WINDOWS

Provide new locally constructed, metal three-part louver windows and frames.

Louvers in all panels must have open/close operability. The two outer panels must be 100% swing-open (turn) operable. Operable panels must have a bolt at the top and bottom to secure the panel in the closed position. All metal must be covered with a suitable rust-inhibitive primer and then be painted with a glossy protective coating. All window frames must be mounted flush with the surrounding walls and seams must be sealed. All windows must be sized to meet life safety requirements. Minimum window size must be 2.40 x 1.20 m (w x h). Anchor and secure window frames to structure as required to resist the expected wind and seismic loads. Caulk all joints between window frames and building with sealant to provide a watertight installation and proper finish.

3.4.3.3.2 EXTERIOR WINDOW SILLS

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Install new exterior metal window sills on all windows. The window sills must match material, finish, and color of window frames. Caulk all joints between window frames and building with sealant to provide a watertight installation and proper finish.

3.4.3.4 ROOFING

Roof design and materials must comply with Host Nation requirements.

3.4.3.4.1 SCHOOL BUILDING ROOF CONSTRUCTION

3.4.3.4.1.1 ROOF CONSTRUCTION AND ROOF COVERING

Provide new roof structure, roof lathing, insulation, and metal roofing panels.

Detail roof covering to provide interior roof sheathing (lateral diaphragm), an intermediate layer of insulation, and exterior metal roof panels with interlocking trapezoidal profile. All roofing must have a slope greater than 15 degrees. Steel panels must be factory finished and have a minimum thickness of 0.70 mm.

Insulation must be provided with a maximum U-factor of U-0.220 (USI 1.249).

Provide all required flashings, fasteners, and sealing materials. Provide vented roof ridge flashing. Install roofing as required by the manufacturer. Submit material and color samples to KO for approval.

3.4.3.4.1.2 EAVES, OVERHANGS, AND SOFFITS

Provide roof overhangs a minimum of 1000 mm from the face of exterior walls. Leave roof soffits open for ventilation.

3.4.3.4.1.3 ROOF GUTTERS, DOWNSPOUTS AND FLASHING

Provide new pre-finished galvanized steel roof gutters, downspouts and flashing.

PVC gutters and downspouts are not acceptable. Size gutters and downspouts for roof drainage area and expected 10-year storm rainfall intensity.