A.02 SOW_Ndava School, Gabon.pdf

US Army Corps of Engineers

Europe District

APO AE 09049

O:\ECEBIM\AFRICA\ar188

Statement of Work

Project Number:

Proj. No.: 512314

Fiscal Year: 2025

New School Buildings for

Ndava Primary School, Municipality of Oyem, Gabon

Prepared by:

Design Section

Engineering Branch

19 SEP 2024

01 10 10 Statement of Work New School Buildings – Oyem, Gabon

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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 & PLUMBING

ATTACHMENTS

Attachment # 1 Location Map

Attachment # 2 Conceptual Site Plan

Attachment # 3 Conceptual Floor Plan, Section and Elevations

Attachment # 4 Structural Calculations Guideline

Attachment # 5 Dedication Plaque

Attachment # 6 Scope For Independent Structural Proofing

Attachment # 7 Gabon Standard Classroom Plan (For Information Only)

Attachment # 8 Ventilated Improved Pit (VIP) Latrine

Attachment # 9 TAG13 The Design of Ventilated Improved Pit (VIP) Latrines

1.0 GENERAL

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) provides parameters for a design-build project for construction of a new school facility in Oyem, Gabon; Latitude 1°34'28.88"N, Longitude 11°33'10.89"E (Refer to the attached Location Map.)

This project will provide two (2) new classroom buildings with a rainwater collection systems and separate ventilated improved pit (VIP) latrines on a fenced school compound. The design and construction must follow all applicable host nation codes and standards.

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 new facility consisting of two classroom buildings, pit latrines and a rainwater collection system

c. Provide new access road and parking lot

d. Provide new perimeter fence

e. Provide concrete apron around the buildings

f. Provide two concrete ramps to access each school building

g. Provide sloping concrete pad in the area of water tank

h. Provide power and lighting throughout the buildings as described in the electrical section

1.2 GENERAL REQUIREMENTS

The Contractor must deliver fully functional, turnkey type facilities (without mobile 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 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

30-Sep-24 Page 3 of 42 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.

Provide Integrated Design. Coordinate design with all stake-holders throughout to maximize opportunities to improve building performance and to fully realize increased energy savings potential.

1.2.1 BASE ITEMS AND OPTIONAL 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 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.

1.3.3 DAYLIGHTING

Locate all regularly occupied spaces, such as classrooms and offices on exterior walls or other locations where it is feasible to provide daylighting.

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 to the Contracting Officer (KO) in accordance with

Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Demolition Plan; G - Not applicable

Sequencing Plan; G - Not applicable

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

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Provide a complete design package at each milestone, as described in RFP 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 RFP 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 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.

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

The facility and the installed equipment must be permanent construction with an expected lifespan of more than 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 the 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.

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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.

1.8.1.1 ABATEMENT AND DISPOSAL

All demolished materials, including hazardous materials identified below, 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 LOCATION OF HAZARDOUS MATERIAL

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 results of the relevant sampling and testing. Provide the hazardous material report no later than 30 days after Notice to Proceed (NTP) for information and approval.

1.8.2.6 ENVIRONMENTAL TOBACCO SMOKE CONTROL

Smoking is prohibited within the building and a minimum of 15 meters of all building entrances, operable windows, and building ventilation intakes.

1.8.2.7 REDUCE ENVIRONMENTAL IMPACT OF MATERIALS

Use construction products that have a lesser or reduced effect on human health and the environment.

Do not use ozone depleting compounds and high global warming potential (GWP) chemicals.

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, pavement, and fencing. 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 is underdeveloped and contains vegetation as shown on the attached Conceptual Site

Plan. 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.

There is no sanitary system at the site.

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, 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.

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).

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

d. Final Existing Conditions Plan.

e. Pre-Final Demolition Plan

f. 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.).

g. Pre-Final Grading Profiles, Cross Sections, and Details. Include spot grades and slopes in Grading Plan. Include cross sections, and details. Include erosion control design.

h. Pre-Final Pavement Profiles, Cross Sections, and Details

i. Pre-Final Fencing Details

j. Preliminary Landscape Plan and Details, including seed mix and seed coverage rate

k. Preliminary 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 Demolition constraints and design decisions. Include discussion on how access will be provided during construction.

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

Provide cut and fill calculations. Provide slope stability calculations for slopes steeper than 2H:1V or slopes supporting proposed structures. Include pertinent geotechnical information that affects earthwork.

d. Discussion of Storm constraints and design decisions. Provide a hydrologic and hydraulic analysis of the storm system, including offsite areas that contribute to and influence the project’s storm system. In the absence of Host

Nation or Installation requirements, use a minimum 10-year storm frequency for analysis and design. Use the Rational Method or TR-55 to determine peak discharge (Q) values. Provide calculations for each section of pipe using

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Manning’s equation to demonstrate pipe sizes and slopes are adequate. Provide calculations on a pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities. Include pertinent geotechnical information that affects the storm system. Confirm that the existing receiving system has adequate capacity to receive the additional stormwater flow generated by the project.

e. 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 calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities. Provide water tank calculations.

f. Discussion of Pavement constraints and design decisions. Provide the design vehicle(s) specifications. Demonstrate the turning path of the largest anticipated vehicle(s) in the most constrained situations on the site plans.

Provide vehicular circulation patterns using AutoTURN or equivalent method.

Provide calculations for the pavement section. Include pertinent geotechnical information that affects the pavement design.

g. Discussion of Fencing constraints and design decisions. Provide structural calculations for the fence foundations if the foundation is designed by the

Designer of Record. Fence calculations are not necessary if the fence foundation design is from an industry standard detail.

h. Discussion of Landscaping constraints and design decisions.

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. 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. Specifications may be notes on the Civil design drawings as an alternative to a separate specifications document.

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

e. UFC 3-240-01, Wastewater Collection

f. USACE Protective Design Center Standard Fence Drawings

g. World Health Organization (WHO) Guidelines for Drinking-water Quality

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h. TAG13, The Design of Ventilated Improved Pit (VIP) Latrines

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 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. 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

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 and

30-Sep-24 Page 10 of 42 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.

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

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

i. Signs. Include sign text.

j. 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.

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.

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.

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 outside the dripline of existing trees.

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, and any other features to construct the proposed improvements. Remove trees with driplines within the footprint of the proposed improvements. All contaminated soils discovered require special testing and disposal per Host Nation requirements.

2.8.1 CONSTRUCTION LIMITS

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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. 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 KO prior to performing said work.

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 UTILITY DEMOLITION

Any existing utilities encountered that are impacted by this project must be protected, or relocated if protection is not feasible. Abandoned utilities must be removed up to the utility main (or next utility main junction) and capped.

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.

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 TOPSOIL

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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.

2.9.4 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.

2.9.5 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 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.

2.9.6 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.

2.9.7 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 a minimum of 15 centimeters above finished grade at the perimeter of the building, with the exception of finished grade at entry points.

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, sanitary sewer, water supply, and

30-Sep-24 Page 13 of 42 electrical. See Sections 5.0-ELECTRICAL & COMMUNICATIONS, Section 6.0-MECHANICAL, and Section for additional utility requirements.

Proposed utility alignments must be at least 3.0 meters from facility or building foundations, except for building connections. 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 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

Connect building downspouts to splash blocks that drain away from foundations a minimum of 5% for 2 meters.

Provide a storm drainage system to direct runoff away from improvements and eliminate ponding. Connect building roof gutters and downspouts to one rainwater tank (5000 liter) as shown on the attached Conceptual Site Plan and attached

Rainwater Tank Example. Locate tanks out of pathways and windows. For rainwater tank, provide handwashing through connected lavatories at the bottom of tank s indicated on Att. #3, Architectural Drawings. Below the lavatories, provide a trench drain connected to runoff pipe 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 overflow gutter 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).

2.10.2 SANITARY SYSTEM

Provide a new latrine building that follows the design shown on the attached

Ventilated Improved Pit (VIP) Latrine Plan and TAG13 - The Design of Ventilated

Improved Pit (VIP) Latrines.

After installation, test sanitary lines and structures for leakage and deflection per local codes. Provide test results to the KO. 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.

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2.11 PAVEMENT

Provide site access to allow operational and maintenance access to the facility.

Provide geometric layout of the paved areas to allow for the design vehicles to access the site features and exit the site safely. Design vehicles for the project are trucks. Proposed pavements for the project include:

a. Aggregate access roads from the existing adjacent road to the proposed gate.

Design road per AASHTO-A Policy on Geometric Design of Highway and Streets.

Provide a minimum 5-meter road width even if the analysis demonstrates a thinner width would suffice. Minimum thickness for aggregate surfaced roads is

200mm.

b. Aggregate parking lot for trucks.

c. Provide minimum 1-meter-wide concrete building apron around the entire building. Install concrete over minimum 15 centimeters aggregate. Install the top of the apron a minimum of 10 centimeters above the adjacent ground.

Provide a minimum of 5 centimeters of bury on the concrete. Provide expansion joint between building and apron. Provide expansion joints within the building apron spaced at 1 meter maximum to prevent cracking.

d. Portland cement concrete (PCC) ramps at the entrance and exit of each building as shown in the Conceptual Site Plan. Extend ramps 5 meters out from the facility and 5 meters wide for a total of 50 square meters for both ramps.

Minimum thickness of concrete is 150mm. Minimum thickness of granular base is

100mm. Provide thicker base if required to protect weak subgrade soils or to reduce frost penetration into the subgrade. Provide expansion joint between building and apron. Provide medium broom finish on PCC concrete. Reference SOW

Section 4.0 - STRUCTURAL for other concrete requirements.

e. Portland cement concrete (PCC) pads in the location of water tank as shown in the Conceptual Site Plan. Minimum thickness of concrete is 150mm. Minimum thickness of granular base is 100mm. Provide thicker base if required to protect weak subgrade soils or to reduce frost penetration into the subgrade.

Provide expansion joint between building and apron. Provide medium broom finish on PCC concrete. Reference SOW Section 4.0 - STRUCTURAL for other concrete requirements.

For asphalt concrete, provide compaction and pavement density tests, as well as thickness and evenness tests, at the frequency listed in Section 2.9 - EARTHWORK.

For PCC, reference SOW Section 4.0 - STRUCTURAL for concrete requirements. Perform subgrade tests for all pavements as described in Section 2.9 - EARTHWORK. 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.

2.12 FENCE

Provide a minimum 1.83-meter high, galvanized metal fence around the perimeter of the property. Provide one 4.5-meter-wide double swing gate to access the property.

Provide a lock for the 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 KO approval.

2.13 LANDSCAPING

Provide 15 centimeters of compacted gravel with a maximum particle size of 3 centimeters in areas that do not have pavement or a building within the limits of disturbance. Refer to 2.9 EARTHWORK section for minimum compaction requirements.

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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 school as described in section 1 and shown on attached drawings.

Provide solid masonry / concrete buildings that will serve as school with latrines and rainwater collection system.

Extensive coordination is required between the architectural work and the work of other disciplines described in this SOW.

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 RFP

Section 01 33 16-DESIGN AFTER AWARD and 01 33 00-SUBMITTAL PROCEDURES. Prepare and submit the documents listed below at the submittals indicated.

3.1.2.1 35% DESIGN SUBMISSION

Not applicable

3.1.2.2 65% DESIGN SUBMISSION

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

a. Code Summary – Provide a tabular code compliance summery indicating Host

Nation requirements for all new facilities.

b. Life Safety Plans – Provide plans depicting smoke/fire resistance ratings, egress routes, 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. Ceiling Plans – Provide reflected ceiling plans for all rooms, indicating ceiling materials and all ceiling mounted fixtures and features, scale 1:50.

e. Building Elevations – Provide all building elevations indicating all exterior materials, scale 1:50.

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

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

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

i. Interior Elevations – Provide interior elevations of all built-in casework, indicate critical heights of surfaces and describe all materials and finishes.

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

k. 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.

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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:

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

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

c. Building Section – Indicate heights.

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

e. Window and Door Details with vertical and horizontal details section of installation into wall openings.

f. Roofing details with flashing, gutters and downspouts to include splash blocks, built in furniture details, ceiling details.

g. Stair Section and Details.

h. Finish Schedule – Indicate all proposed finishes.

i. 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.

j. 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 new structures must have exits and means of egress that comply with current Host Nation codes and standards. In the absence of Host Nation codes and standards, for individual concerns of Life Safety the Contractor must follow 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 the project. When requested, the Contractor must provide documentation demonstrating that a chosen alternative material is life cycle cost effective.

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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. Provide a design informed by the modular size of selected materials. Building materials as described herein 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.

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.

3.4.2.5 RECYCLING AREA(S)

Provide area(s) and show on floor plans that serve the entire building for the collection of recyclables (paper, cardboard, glass, plastics, and metals).

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.

3.4.3.1.1 STEM WALLS

Provide fluid-applied monolithic membrane waterproofing on all concrete and masonry stem walls below grade. Waterproofing must be low VOC. Apply liquid proof coating with fabric reinforcement corner strips in accordance with manufacturer guidelines. Provide continuous rigid board insulation and drainage membrane. All materials below grade must be appropriate for direct contact with soil.

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3.4.3.2 EXTERIOR DOORS

Provide new exterior doors in accordance with the functional requirements of this facility and as indicated on attached drawings.

3.4.3.2.1 PERSONNEL DOORS

Provide new local type hard wood doors. Frames and door leaves/panels must be sanded smooth and finished with two coats of water based acrylic gloss paint

(resistant to water and ultraviolet light). Before applying paint and coatings, wood must be chemically treated against termites and other insect damage as applicable.

Doors must be minimum 1 m wide, 2.1m high (clear opening) and minimum 44mm thick unless required to be wider and higher per local building code.

Coordinate key system with the KO and end user.

Each door must have the following hardware as a minimum:

a. Three hinges on each leaf;

b. One floor or wall mounted doorstopper, as appropriate;

c. Lever latch handles;

d. Lockset with locking system;

e. Panic push bar in compliance with Host Nation criteria on each leaf, as required;

f. Weather seals and gasketing; and

g. Handicapped accessible door threshold and door bottom.

3.4.3.3 EXTERIOR WINDOWS

Provide exterior windows as indicated on attached drawings.

3.4.3.3.1 EXTERIOR WINDOWS

Provide windows without glazing that allow maximum ambient light without glare and direct sunlight (heat) into the rooms.