A.01.38_-_Statement_of_Work_-_Amitie_School_Reno.pdf

US Army Corps of Engineers

Europe District

APO AE 09049

ar134

Statement of Work

Ar134:

FY18

Amitie Primary School Expansion

Oyem, Woleu-Ntem, Gabon

Prepared by:

Design Section

Engineering Branch

31 July 2018

Amitie Primary Primary School Expansion Oyem, Woleu-Ntem, Gabon

31-Jul-18 Section 01010 Page 2 of 46

SECTION 01010

STATEMENT OF WORK

SECTION TABLE OF CONTENTS;

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL

4 STRUCTURAL

5 ELECTRICAL & COMMUNICATIONS

6 MECHANICAL

7 FIRE PROTECTION (Not applicable)

ATTACHMENTS

Att. # 1 Location Map

Att. # 2 Conceptual Site Plan

Att. # 3 School Floor Plan, Elevations & Toilet Facility

Drawings

Att. # 4 Structural Calculations Guideline

Att. # 5 Rainwater 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 in Oyem, Woleu-Ntem, Gabon. The project will include a new school building & new toilet facility.

1.2 GENERAL REQUIREMENTS

The Contractor shall deliver fully functional, turnkey type facilities (with limited 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 shall be permanent construction.

The Contractor shall provide to the Contracting Officer’s Representative

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

The contractor shall obtain all permits necessary for the project, which are not required by agreements with the Host Nation (HN) to be obtained by the

U.S. Forces, in accordance with FAR 52.236-7, Permits and Responsibilities.

In addition, the Contractor shall prepare all necessary documentation required for requesting permissions and making notifications to the HN authorities in accordance with public law and other applicable requirements and regulations. All necessary application documents shall be prepared by the Contractor in HN and English languages and submitted to U.S. Forces.

Where the Contractor is responsible for obtaining the permit, the Contractor

31-Jul-18 Section 01010 Page 3 of 46 shall obtain approval and signatures as needed for the HN permitting and notification process from the COR. A copy of all permits shall be furnished to the COR prior to the start of construction work. All costs for permitting and notifications shall be borne by the Contractor.

Where final acceptance by the HN is required, the Contractor will coordinate with the HN Government, in conjunction with the U.S. Forces, to determine the requirements for proper final inspection by the HN and provide any information required for proper final acceptance. The contractor shall incorporate the requirements for final acceptance into the design and construction of the project.

The facility shall be designed and constructed in accordance with current standards and building codes as described in these documents.

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

1.3 FUNCTIONAL AREAS AND SPACE ADJACENCIES

Design and construct the school building as a new one-story solid masonry & concrete building with sloped roof. Design and construct the toilet facility as a new one-story solid masonry & concrete building with sloped roof.

Provide the following functional areas:

1.3.1 New School Building

3 Classrooms (8mx9m) 216 m2, 1 Office (4.38mx9m) 39.45 m2, Covered Verandah (29.05Mx2m) 58.1 m2

Total usable area to be provided shall be 313.5 m2, net.

1.3.2 New Toilet Facility

4 Total stalls

2- Men 2- Women

1.4 MATERIALS AND EQUIPMENT

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

The equipment shall be the manufacturer’s standard quality and shall be compatible with all other equipment and materials within the system or assembly. Equipment and materials shall include all connections and accessories necessary to ensure operability and correct installation according to manufacturer’s requirements.

Any material installed that does not meet the requirements of this RFP shall be removed and replaced with materials that meet RFP requirements at the

Contractor’s expense.

Each major piece of equipment shall have the manufacturer’s name, address, contact information, type or style, model or serial number, and catalog number on a plate secured to the piece of equipment. The definition of a

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“major piece of equipment” shall be at the discretion of the COR. At minimum, two (each) of all Operation and Maintenance manuals shall be provided for all pieces of equipment (Electrical, Mechanical, Plumbing, etc.). These shall be clearly labeled, bound and delivered for review, 60 days prior to project completion. The contractor shall be required to provide training for all aspects of the O&M. All manuals shall be turned over at final inspection.

Provide two (2) each of any unique tools required to operate or maintain each piece of equipment

All equipment delivered and placed in storage shall be stored with protection from the weather and temperature variation, dirt and dust, and other contaminants. The contractor shall be responsible for the materials safety and condition while in storage. The government shall not be responsible for damaged or missing equipment.

1.5 DESIGN DIMENSIONS

The design shall be developed using the metric system.

1.6 GENERAL DESIGN INSTRUCTIONS

The Contractor's design and construction shall comply with technical requirements contained herein. The Contractor shall provide design and construction using the best blend of cost, construction efficiency, system durability, ease of maintenance and environmental compatibility. See

Specification 01 33 16 Design After Award for additional information.

1.7 DESIGN CRITERIA

Project design, site facilities, utility systems and material standards shall be in accordance with the latest editions of the Host Nation building codes.

In the absence of Host Nation building codes the Contractor shall 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 are to meet Host Nation codes and requirements. It is the designer's responsibility to demonstrate that the Host Nation standard is equal to the cited standard or specifications being supplanted. The more restrictive standards shall apply when conflicts arise between the requirements of this RFP and any referenced or other applicable codes, standards or regulations. If equivalency cannot be met, the more stringent requirement shall be used and both codes shall be quoted verbatim in the

Contractor’s correspondence to the COR. Where specific standards are not indicated, the designer shall determine the required material and execution standards.

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

1.7.1 DESIGN SUBMITTALS

The contractor will be required to make formal design submittals at 35% and

95% design as well as a corrected final (100%). This includes a design analysis, a complete set of drawings, calculations and specifications at each submittal.

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The contractor shall submit all documents in electronic format (.pdf for text and calculations, .pdf and .dwg (AutoCAD, latest version) for drawings). See

Specification 01 33 00 SUBMITTAL PROCEDURES for additional information.

1.7.1.1 SUBMITTAL DOCUMENT LANGUAGE

All submittal documents shall be provided in both the Host Nation language and English. If a document cannot contain both languages side-by-side, then two identical copies of the document shall be provided, one in the Host

National language and one in English. Submittals that are not provided with both English and Host Nation language translation will be rejected.

1.7.2 DESIGN CONFERENCES AND MEETINGS

The Contractor and the entire design team are required to participate in a design review conference for the design submittals as required in section

1.7.1 above. No design review conference will be required for the 100% corrected final.

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

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

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

1.7.3 LIFE-SPAN

Construction must have an expected life span of 25 years.

1.7.4 MAINTAINABILITY

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

1.7.5 OPERABILITY

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

1.7.6 STANDARDIZATION

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

1.8 INSPECTIONS

1.8.1 THIRD PARTY INSPECTION SERVICES

The Contractor shall furnish independent 3rd party inspection services to inspect the electrical and structural construction features of the project.

The 3rd party shall not be the same company responsible for the electrical or structural installation. This is in addition to the requirements of

Contractor Quality Control 01 45 00. All testing shall be at the expense of the Contractor. The contractor shall submit a plan for third party services to the COR. The inspection plan must be approved by the COR prior to construction.

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1.8.1.1 GENERAL REQUIREMENTS

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

1504x1000) of the observed activity.

1.8.1.2 THIRD PARTY ELECTRICAL INSPECTOR REQUIREMENTS

The inspector shall be a certified Master electrician or licensed degreed

Electrical Engineer and have a minimum of 10 years' experience, 5 years in the country where the project work is performed. The contractor shall submit the inspector’s CV (Resume) for approval.

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

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

1.8.1.3 THIRD PARTY STRUCTURAL ENGINEER INSPECTOR REQUIREMENTS

Structural Engineer shall be a licensed graduate engineer with 10 years of experience, 5 years in the country where the project work is performed.

Required experience includes, but is not limited to, inspecting concrete moment frame, concrete foundations, roof system and rebar and form work.

Furnish CV for approval.

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

Minimum inspections to be conducted: Bearing capacity of foundation soils, formwork and rebar of foundations, concrete placement of foundations.

Formwork, rebar and concrete pour of moment frame. No concrete may be placed in forms without a preceding rebar inspection report and verification of functioning vibration equipment.

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

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

2.2 EXISTING CONDITIONS

The proposed project is located approximately 2km southwest of the center of

Oyem, Gabon. (Latitude 01°35’23“N, Longitude 11°33’35“E). See Attachment#1-

Location Map

The existing site contains buildings, utilities, and vegetation as shown on

Attachment#2-Conceptual Site Plan. The site slopes gently to the south. The slope is steeper (20% +/-) south of the existing toilet and outdoor classroom.

There is no known topographic survey, as-built, or geotechnical information for the site. There are no known environmental protection areas or archeological preservation areas on the project site.

Rainfall from the buildings sheet flow off the roof directly to the ground.

There is an existing ditch on the west side of the site that collects this rainfall and discharges to the south. There is an existing 25 millimeter water connection (including meter) located at the northeast corner of the site. There is no sanitary system at the site.

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

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

(2) Weather, river stages, tides, or similar physical conditions at the site;

(3) 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.

(4) Mobilization and staging.

2.2.1 HAZARDOUS MATERIALS AND CONTAMINATION

There is no prior knowledge of any hazardous materials at the site. However, it is possible that hazardous material may be found from previous use of the site, or that materials to be removed contain hazardous materials. If hazardous materials are found to exist, immediately notify the COR, cease work in the area, and secure the site. Take precautions to protect the site from surface run-off and precipitation, and prevent leaching of any hazardous material in the surrounding area.

2.3 DESIGN SUBMITTALS

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

35% Design Submittal:

Preliminary Design Analysis of civil features.

Final Site Survey (include in the Design Analysis).

Final Geotechnical Report (include in the Design Analysis).

Final Existing Conditions Plan.

Preliminary Demolition Plan

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

Preliminary Grading Plans, including contours, finish floor elevations, and retaining walls.

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

Preliminary Civil Specifications (Table of Contents only).

95% Design Submittal:

Update all items from the 35% Design Submittal to 95% (Final) Design.

Incorporate all 35% design comments.

Final Grading Profiles, Cross Sections, and Details. Include spot grades and slopes in Grading Plan. Include retaining wall profiles, cross sections, and details. Include erosion control design.

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

Details.

Final Landscape Plan and Details, including seed mix and seed coverage rate

Final Civil Specifications

100% Submittal:

The 100% Submittal provides a complete and final set of contract documents ready for construction. Update all Final submittals from 95% to a corrected

Final submittal. Address all previous government review comments before submitting.

2.3.1 DESIGN ANALYSIS

Provide a Design Analysis for all Civil features that documents significant design choices and substantiates design compliance with contract requirements, applicable codes and standards. Documentation includes narrative, calculations, photographs, sketches, and catalog cut sheets.

Reference all applicable regulations, standards, and criteria for the design.

Reference sources are subject to Government approval. Provide design assumptions. For design choices, discuss alternative systems considered, and provide rationale for the selected alternative.

The Design Analysis includes but is not limited to:

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

b. Discussion of Demolition constraints and design decisions.

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

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d. Discussion of Storm system 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 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 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.

e. Discussion of Sanitary system constraints and design decisions. Provide calculations for each section of pipe using Manning’s equation to demonstrate pipe sizes and slopes are adequate. Provide calculations for sizing of sanitary structures, including but not limited to, oil-water separators, septic tanks, infiltration structures, and pumps.

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 sanitary system.

f. Discussion of Water system constraints, design decisions and source.

Provide calculations to demonstrate water system meets project requirements, including demand, water pipe sizing, design water pressure and flow rates at buildings. Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities.

g. Discussion of Landscaping constraints and design decisions.

h. Site Survey as an appendix.

i. 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 the design criteria outlined in SOW

Section 1.0 – GENERAL. In the absence of Host Nation Codes, use the latest

31-Jul-18 Section 01010 Page 10 of 46 release of the International Building Codes (IBC) and/or the following Codes and Technical Standards:

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

UFC 3-220-01, Geotechnical Engineering

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

UFC 3-240-01, Wastewater Collection

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

USACE AED Design Requirements: Sanitary Sewer & Septic System

WHO Fact Sheet 3.9 – Septic Tanks.

2.5 GEOTECHNICAL INVESTIGATION AND REPORT

Perform a geotechnical investigation and assessment of the project site to determine the subsurface conditions and geotechnical parameters for the foundation, grading, and septic design. Perform the necessary amount of testing, borings and test pits at depths suitable for the project improvements. The Geotechnical work shall be performed under the supervision of a professional geotechnical engineer registered with the jurisdiction having authority, and the report shall be signed by the Geotechnical Engineer.

In the absence of Host Nation standards, perform the geotechnical investigation and report per UFC 3-220-01, Geotechnical Engineering and IBC.

Coordinate testing locations with the COR to avoid impact to facility operations. Utility locates, permits, 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. 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 shall distinguish fill materials from native materials, include all in‐situ test results, and include groundwater depth information, if groundwater is encountered. Distinguish between bedrock and rock boulders.

f. Reports of all the field and laboratory testing.

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

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

i. Recommendations for the septic systems involving infiltration.

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j. Calculations to support conclusions and recommendations

2.5.2 DESIGN DRAWINGS AND SPECIFICATIONS

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

2.6 SITE SURVEY

Provide a topographic survey from a licensed surveyor that includes all existing site information needed to design and construct the project. Include x, y, and z coordinates to the nearest 0.005 meters, dimensions, material, and basic characteristics of all features within the project site limits, as well as all features outside of the project site limits that will affect the design and construction of the project. Research record drawings to obtain utility and pavement information that is not visible from the surface.

Provide notes indicating the sources and any limitations or assumptions of the data. Provide a copy of the survey in CAD, in addition to the paper/electronic requirements of the Design Analysis. Locate and show on the topographic survey the following information:

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

b. Survey monuments and benchmarks. Include description.

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

d. Contours in intervals of 0.25 meters.

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

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

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

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

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

j. Signs. Include sign text.

k. Trees/Woods: In wooded areas that trees are to be protected, locate outside drip line of wooded area, include general density and type of trees. For wooded areas with proposed tree removal, identify trees per

Host Nation permitting requirements. Where selective clearing will be proposed, locate trees over 150 millimeter diameter at chest height, and include tree species, diameter at chest height, and dripline diameter.

l. Geotechnical boring locations.

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

n. North arrow and scale of drawing.

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

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

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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.

Reference UFC 3-201-01, Civil Engineering, Section 2-2.2-SURVEYING for survey requirements. Reference USACE A/E/C Graphics Standard for graphic 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 buildings and other improvements as indicated on

Attachment #2 – 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 school building a minimum of 3 meters away from existing buildings, and 1 meter from existing perimeter walls. The location of the proposed school building must not block any portion of the site entrance. Locate the proposed toilet building a minimum of 3 meters from existing buildings. Align the proposed buildings on the same axis as adjacent buildings and property lines.

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

2.8 DEMOLITION

Remove existing structures, utilities, pavement, vegetation, and any other features to construct the proposed improvements. Install erosion control measures before beginning construction. Any contaminated soils discovered will require special testing and disposal per Host Nation requirements.

2.8.1 CONSTRUCTION LIMITS

Do not disturb the project site beyond necessary for installation of proposed construction. Do not disturb any areas past the site’s property line. Show demolition work and limits of disturbance in the drawings.

Stake-out the limits of disturbance on-site with temporary fencing before beginning construction.

2.8.2 ITEMS TO REMAIN IN PLACE WITHIN CONSTRUCTION LIMITS

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

Repairs, reinforcement, or structural replacement require approval by the

COR prior to performing said work.

2.8.3 TREE DEMOLITION

Unless otherwise noted on Att#2-Conceptual Site plan, protect trees larger than 150mm diameter at chest height within the project site which might be damaged during construction, with a 1.8 m high fence around the dripline of the tree(s), which is assumed to be the extent of the tree’s roots.

Mitigate for tree removal per Host Nation requirements.

https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system

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2.8.4 UTILITY DEMOLITION

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

2.8.5 DUST, DEBRIS, AND EROSION CONTROL

Prevent the spread of dust, debris, and erosion from the project site.

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

Apply local regulations regarding hauling and disposal.

Reference RFP Section 00 74 00-SPECIAL CONDITIONS and 01 30 00-GENERAL

REQUIREMENTS for additional demolition, protection, and permitting requirements.

2.9 EARTHWORK

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

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

Remove and save topsoil (approximately first 15 centimeters of excavation).

When restoring the site to finish grade, place topsoil back in excavated areas that do not include proposed paving or structures. Excavated material

(below topsoil), if satisfactory for reuse per the 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, may be disposed of on-site in a location approved by the COR. Borrow material may be required for construction from sources off site. Borrow materials are to be free of hazardous materials and contaminants. Any soil brought in from off-site sources must be certified clean.

In the absence of Host Nation standards 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

31-Jul-18 Section 01010 Page 14 of 46 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 shall be selected by the Contractor’s geotechnical engineer, and copies of all test results shall be furnished to the COR. All structure foundation excavations must be inspected and approved by the Contractor’s geotechnical engineer prior to placing concrete. Repair earthwork areas as recommended by the Contractor’s geotechnical engineer, and approved by the COR.

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

2.9.1 SITE GRADING

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

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

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

c. Finished grades must not create stagnating water or ponding anywhere on the project site, nor create ponding on adjacent properties.

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 local accessibility guidelines.

The Contractor must limit proposed landscape slopes to a maximum 2H:1V.

2.10 UTILITIES

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

Provide utility main alignments a minimum of 3 meters outside the footprint of proposed structures. Provide utility line depths, bedding, and backfill as required by applicable standards 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 lines after pipe installation at a height of 0.3 meters above the line.

Any existing utilities encountered within the site boundary that are impacted by this project must be protected, or relocated if protection is not feasible.

Relocate existing utility mains outside the structural zone of influence of proposed buildings and structures. Utilities impacted by this project that require decommissioning, or that are already out of service, must be removed up to the utility main and capped. Manholes or underground structures to be abandoned must be removed to a minimum depth of 50 centimeters below finish grade. Fill abandoned manhole or structure per Section 2.9-EARTHWORK requirements.

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Coordinate all required installation, relocation, improvement and protection of utilities held by third party (e.g. public or private utility). This includes coordination of any work to be performed by the utility owner.

Choice of materials and products for utility installation must be coordinated with the utility owner (customer or third party) to ensure proper integration and compliance with existing systems and allow for easy maintenance and repair of the utilities in the future.

Provide corrosion protection for utilities that provides the minimum life expectancy specified in GENERAL Section 1.0. Any piping or equipment exposed to sunlight shall 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 toilet building downspouts to splash blocks that drain away from foundations a minimum of 5% for 2 meters. See Mechanical Section for

Stormwater collection on the proposed school building.

Allowable storm pipe materials include polyvinyl chloride (PVC), high density polyethylene (HDPE), ductile iron, or reinforced concrete pipe. Storm structures must be concrete, with traffic rated cast iron or ductile iron frames and covers. In the absence of Host Nation standards, design the storm drainage system per UFC 3-201-01, Civil Engineering Chapter 3-Storm Drainage

Systems.

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

2.10.2 SANITARY SYSTEM

Provide a septic system with tank, drainfield, piping, and all appurtenances connected to the proposed toilet facility. Size the system based on the occupancy and a 5 year maintenance schedule of pumping of the septic tank.

Provide geotechnical fabric between soil and drainfield to prevent clogging of the drainfield. If the Geotechnical Investigation determines that the soil percolation rate is less than 15 millimeter/hr, provide a holding tank instead of a septic system. If using a holding tank, size the holding tank for 10 days of use by the occupants. Locate the sanitary system to allow for maintenance and cleaning. The system must have the ability to be monitored and pumped out. Locate the septic tank a minimum of 10 meters from non-toilet buildings. Locate the drainfield a minimum of 3 meters from the septic tank, structures, and outside the dripline of remaining trees. The system must work by gravity. A pump system is not allowed. In the absence of Host Nation standards, design the sanitary system per IBC, UFC 3-240-01, Wastewater Collection, WHO Fact Sheet 3.9, and USACE AED Design Requirements:

Sanitary Sewer & Septic System.

Allowable sanitary pipe materials include polyvinyl chloride (PVC), high density polyethylene (HDPE), or ductile iron. Sanitary structures must be concrete, with traffic rated cast iron or ductile iron frames and covers.

In the absence of Host Nation standards, design the sanitary system per UFC

3-240-01, Wastewater Collection.

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

2.10.3 WATER SYSTEM

Provide a water system to connect the proposed water system structures described in the ARCHITECTURAL and MECHANICAL Sections. Design the system to meet all flow requirements of the facility, including potable water.

Allowable water pipe materials include polyvinyl chloride (PVC), high density polyethylene (HDPE), or ductile iron. Water structures must be concrete, with traffic rated cast iron or ductile iron frames and covers. In the absence of Host Nation standards, design the water system per IBC, UFC 3-

230-01, Water Storage, Distribution, and Transmission and UFC 3-600-01, Fire

Protection Engineering for Facilities. After installation, test water supply lines as discussed in the MECHANICAL section.

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

Design and construction work for a new toilet facility and a new classroom school building at Amitie Primary School, Oyem, Woleu-Ntem, Gabon.

The Contractor shall provide a design and construction package that uses the design details and features given or referenced in this RFP. The design shall incorporate all referenced codes and regulations. Additional details shall be created by the Contractor as required, but shall conform to the requirements of this RFP and are subject to the approval of the COR. The

Contractor submitted designs must be approved by the COR. 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 codes and criteria referenced in this

Statement of Work.

3.1.1 DRAWINGS

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

3.1.2 DESIGN SUBMITTALS

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

3.1.2.1 35% DESIGN SUBMISSION

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

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

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

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

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

• Building Section – Indicate heights of critical building elements.

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

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

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

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

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

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3.1.2.2 95% DESIGN SUBMISSION

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

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

• Section and Plan Details – Provide enlarged details of critical intersections indicating all materials

• Interior Elevations – Provide enlarged interior elevations indicating all materials, finishes, and coordination with other building systems.

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

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

• Window and Door Details – Provide enlarged details of door and window head, jamb, and sills

• Color Board – Provide a material and color board.

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

3.1.2.3 100% (CORRECTED FINAL) DESIGN SUBMISSION

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

3.2 TECHNICAL CRITERIA AND STANDARDS

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

3.2.1 LIFE SAFETY REQUIREMENTS

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

All structures to be provided shall 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 shall follow appropriate US codes and standards:

NFPA 101 - Life Safety Code

3.2.2 HANDICAPPED ACCESSIBILITY REQUIREMENTS

Entry gate, all building entries and all ground floor building elements, structures and areas to be provided shall meet handicapped accessibility requirements that comply with current Host Nation codes and standards. In the absence of local codes for handicapped accessibility, Architectural

Barrier Act requirements shall apply:

https://www.access-board.gov/guidelines-and-standards/buildings-and-sites/about-the-aba-standards/aba-standards

3.3 GENERAL SCOPE OF WORK

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The architectural elements of this facility shall be designed to withstand all site-specific environmental conditions such as wide seasonal temperature swings, local wind, rain, snow and earthquake conditions. All architectural features shall be appropriately braced for anticipated seismic activity. The

Contractor shall have flexibility to propose alternate building materials to meet the facility’s requirements, but final selection of materials shall be subject to the approval of the COR. Materials and building systems shall be selected with consideration given to economics not only in the initial acquisition, but also in the future maintenance of the materials when incorporated into the work.

3.4 DETAILED SCOPE OF WORK

The contractor shall be responsible for the following specific task required for the construction of this facility.

3.4.1 DEMOLITION

Remove and dispose existing flag pole monument where new school building shall be placed.

3.4.1.1 DEMOLITION AND DISPOSAL

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

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 would like 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 shall conform to Host Nation fire protection standards/requirements or equivalent US standards/requirements.

3.4.2.2 ACOUSTICAL DESIGN

Walls shall meet the minimum sound protection per Host Nation requirements.

3.4.3 EXTERIOR CONSTRUCTION WORK

3.4.3.1 EXTERIOR WALLS

New exterior walls shall be constructed with concrete masonry units (CMU) or brick masonry matching adjacent construction IAW with the Structural requirements described in this SOW, refer to Section 4.0 STRUCTURAL.

Provide new coat of cement plaster on exterior faces of all walls. Steel trowel to a smooth surface. Paint with one coat of approved alkali resistant undercoat paint and two coats super acrylic finish. Low VOC, environmentally friendly, washable, abrasion resistive and suitable for wall material paint must be used. All paint colors shall be approved by COR.

3.4.3.2 EXTERIOR DOORS

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Provide new wood frames. Wood shall be local type hard wood, sanded smooth and finished with three coats of water based polyurethane matte varnish or paint (resistant to water and ultra violet light).

Provide new door panels constructed from local type hardwood. Doors shall 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.

Doors shall be finished with anti-termite coating and three coats of water based polyurethane matte varnish or…