A.02.16.2_Papri_School_SOW_ar148c_011010_09_AUG_2019_REVISED.pdf

US Army Corps of Engineers

Europe District

APO AE 09049

ar148c

Statement of Work

Project Number:

OHASIS# 38911

Papri Secondary School

Kpendjal, Papri, Togo

Prepared by:

Design Section

Engineering Branch

15 May 2019

01 10 10 Statement of Work Papri Secondary School – Kpendjal, Papri, Togo

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SECTION 01 10 10

STATEMENT OF WORK

SECTION TABLE OF CONTENTS:

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL

4 STRUCTURAL

5 ELECTRICAL & COMMUNICATIONS

6 MECHANICAL

ATTACHMENTS

Att. # 1 Project Location Map

Att. # 2 As-Built Site Layout

Att. # 3 As-Built Drawings

Att. # 4 Preparation of Structural Calculations

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) provides parameters for a design-build project for construction of a secondary school facility in Papri, Togo. This project includes the design and construction of the following structures, detailed requirements are contained elsewhere in this Statement of Work (SOW):

a. One (1) four-classroom school building;

b. One (1) outdoor classroom;

c. One (1) four-toilet ventilated improved pit (VIP) latrine;

d. One (1) rainwater harvesting system;

e. Battery room with optional photovoltaic (PV) system;

f. Site improvements.

1.2 GENERAL REQUIREMENTS

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

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

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

Contractor.

1.2.1 BASE BID ITEMS AND OPTIONAL BID ITEMS

This Statement of Work addresses the technical requirements necessary to complete all work associated with this project. For information and requirements regarding the allocation of pricing between elements of the work, refer to the Bid Schedule included as a separate document. The Bid Schedule identifies the breakdown between the individual base bid and optional items for all work identified in this

Statement of Work, associated drawings, and attachments. All work as described in these documents is included in either the Base Bid or Optional Items: consider all

9-Aug-19 Page 3 of 45 items not specifically identified in the Optional Items as part of the Base Bid

Items.

1.3 FUNCTIONAL AREAS

Provide the new, stand-alone structures described below. Detailed facility requirements are provided in the discipline-specific sections and attachments of this SOW.

1.3.1 SCHOOL BUILDING

Provide a one-story, solid masonry / concrete School Building with a sloped metal roof. Provide the following functional areas for the School Building:

Room Name Function Approximate

Size (m2)

Concrete Walkway Covered, open-air access to classrooms and office

51.2

Classroom #1 Teaching and instruction 45.2

Classroom #2 Teaching and instruction 45.2

Classroom #3 Teaching and instruction 45.2

Classroom #4 Teaching and instruction 45.2

Outdoor Classroom Open-air teaching and instruction area

66.1

Office Administrative staff office 15.0

Storage Room School storage

*See Note 1

13.2

Battery Room Ventilated battery room for photovoltaics

*See Note 2

1.8

Note 1: This room, located in the north-west corner of the building, is labelled as

“Office” in the attached as-built drawings.

Note 2: Battery Room is not shown on the attached as-built drawings. Battery Room may be integrated into the school building as a separate room with an external access, occupying a portion of Storage Room.

The completed facility must have an enclosed net area of approximately 277 m2 and a gross footprint of approximately 355.0 m2.

1.3.2.1 NEW 4-TOILET LATRINE BUILDING

Provide one (1), one-story, solid concrete or reinforced masonry Latrine with concrete roof slabs. Provide the following functional areas for each Latrine:

Room Name Function Approximate

Size (m2)

Latrine #1 Latrine with one (1) hole 1.5

Latrine #2 Latrine with one (1) hole 1.5

Latrine #3 Latrine with one (1) hole 1.5

Latrine #4 Latrine with one (1) hole 1.5

Holding Tank

Block

Vented waste pit 5.3

Stairs Access to latrines 2.9

The completed facility shall have a net usable area of approximately 14.2 m2 and a gross footprint of approximately 15.5 m2.

The as-built drawings show stairs as a means of access to the latrine building.

Analyze the slope of the terrain and provide a cast-in-place concrete ramp for the

9-Aug-19 Page 4 of 45 latrine building to meet applicable Host Nation handicapped accessibility requirements. Provide a privacy wall and paint the new latrine building to match the new school building.

1.3.2.2 MODIFICATIONS OF THE EXISTING LATRINE BUILDING

Repaint the existing latrine building and provide a privacy wall and new doors. The repaint and new doors must match the new school building.

1.4 SUBMITTALS

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

SD-01 Pre-construction Submittals

Inspection Plan; G

SD-05 Design Data

65% Pre-Final Design; G, DO

95% Final Design; G, DO

100% Corrected Final Design; G, DO

1.4.1 DESIGN SUBMITTALS

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

Section 01 33 16 DESIGN AFTER AWARD. The milestones for this project are indicated above in Section 1.4 SUBMITTALS. The specific requirements of each milestone are described in each discipline-specific section of this Specification.

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.

1.5 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 COR.

1.5.1 LIFE-SPAN

Construction must have an expected life span of 25 years.

1.5.2 MAINTAINABILITY

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

1.5.3 OPERABILITY

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

1.5.4 STANDARDIZATION

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

1.5.5 SOURCING

Use materials, products, equipment, and systems that can be replaced, repaired, maintained, and/or serviced locally in Togo. All warranties must be valid in Togo and have local authorized service providers.

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 the latest editions of the Host Nation building codes. In the absence of Host Nation building codes, use the International Building Code (IBC) and codes, technical standards, and regulations referenced in this RFP.

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

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

1.8 DESIGN CONFERENCES AND MEETINGS

The Contractor and the entire design team are required to participate in a design review conference for each design submittal. The Contractor must bring the personnel that developed the design submittal to any review conference.

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

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

The Contractor is responsible for evaluating all Government comments prior to each design review conference. The Contractor is responsible for resolving all

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

1.9 SPECIAL CONSTRUCTION REQUIREMENTS

1.9.1 THIRD PARTY INSPECTION SERVICES

Furnish independent 3rd party inspection services to inspect the electrical and structural construction features of the project. The 3rd party must not be the same company responsible for the electrical or structural installation. This is in addition to the Contractor Site Personnel Requirements contained in 01 45 05

CONTRACTOR SITE PERSONNEL REQUIREMENTS. All testing is at the expense of the

Contractor. Submit a plan for third party services to the COR. The inspection plan must be approved by the COR prior to construction.

1.9.1.1 GENERAL REQUIREMENTS

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3rd Party inspectors must submit professional reports directly to the COR, without coordination with the Contractor, within 48 hours of the actual inspection. The report must 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.

1.9.1.2 THIRD PARTY ELECTRICAL INSPECTOR REQUIREMENTS

The electrical inspector must be a certified Master electrician or licensed degreed Electrical Engineer and have a minimum of 10 years' experience, 5 years in the country where the project work is performed. Submit the inspector’s CV

(Resume) to the COR for Government approval.

The following inspections must be conducted at a minimum: 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.

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

1.9.1.3 THIRD PARTY STRUCTURAL ENGINEER INSPECTOR REQUIREMENTS

The structural inspector must be a licensed graduate engineer with 10 years of experience, 5 years in the country where the project work is performed. Required experience includes, but is not limited to, inspecting concrete moment frame, concrete foundations, roof system and rebar and form work. Submit the inspector’s

CV (Resume) to the COR for Government approval.

Submit an inspection plan and schedule of inspections to be part of the QC Plan or a separate submittal to be tracked via the submittal register, indicating the inspection plan and timing.

The following inspections must be conducted at a minimum: 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.

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

END OF SECTION

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2. CIVIL AND GEOTECHNICAL DESIGN

2.1. GENERAL REQUIREMENTS

2.1.1. The Contractor shall provide and perform civil engineering design and construction services as required to provide a complete, accessible, functional, usable, and environmentally sustainable facility as described in this SOW. The services covered by this section include all civil engineering labor, material supplies, and incidental work required for the demolition, design, fabrication, delivery, installation, and construction that serve the project. The Contractor is required to extensively coordinate civil design and construction work with the scope of the other disciplines described in this SOW.

2.1.2. The civil design and construction, including demolition and mobilization, shall be coordinated with all other trades. The facility and equipment shall be permanent construction. All civil works shall be designed and constructed in accordance with the criteria provided herein, and with the minimum standards specified in the applicable referenced codes.

2.1.3. The contractor shall be responsible for obtaining all applicable permits for site clearing, digging, demolition, transport, and disposal of waste material generated by this work effort, and/or any other permits that may be required.

2.1.4. The Contractor shall coordinate the site layout of the new building and its associated exterior features with the local authorities.

2.1.5. No open fires or burning of trash will be allowed within the confines of the project site.

2.1.6. Any damage to structures, drainage facilities, or other existing features on the site because of Contractor operations shall be repaired, or the damaged items replaced, at the Contractor's expense.

2.2. SCOPE SUMMARY

The civil works for this project include, but are not limited to, the following:

• Site clearance in the area of the new building and access, including any required demolition, foundation/slab removal, debris removal, grubbing of shrubs, removal of trees, or removal of existing surface features at the site which are obstacles to locating the new building and its associated exterior features.

• Demolition and removal of existing latrine cabin sanitary septic system

• Performance of a site survey, including a topographical and drainage survey of the existing conditions.

• Performance of a geotechnical investigation of the site.

• Mobilization of all construction-related equipment.

• Site earthwork and grading, including preparation of the subgrade beneath the new structures/foundations, and any necessary grading to achieve positive drainage away from structures.

• Provision of rainwater cistern/water tank

• VIP latrine cabin sanitary septic system

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• If required by Host Nation, the planting of trees to replace in number any major trees, if any, that are removed in part to construct the new building and its associated exterior features.

2.3. EXISTING CONDITIONS

Site has previously been used for school classrooms. The school building has been damaged beyond repair. Exterior site surface conditions have been impacted and will require restoration.

The proposed project is located in the town of Papri, Togo (Latitude 10°59'55.21"N

Longitude 0°25'25.43"E). See Attachment#1-Project Location Map.

The existing site contains buildings, latrine septic system, fences, and vegetation as shown on Attachment#2-As-Built Layout. The site is flat. There is no known topographic survey, as-built, or geotechnical information for the site. There are no known environmental protection areas or archeological preservation areas on the project site.

There is no subsurface storm system at the site.

2.3.1. HAZARDOUS MATERIALS AND CONTAMINATION

There is no prior knowledge of any hazardous materials at the site. However, it may be that there is a possibility of hazardous materials from previous use of the site, or that materials to be removed contain hazardous materials. The Contractor shall be responsible to survey the site and determine if hazardous materials exist.

If hazardous materials are found to exist, the Contractor shall immediately notify the COR. While awaiting further instructions from the COR, the Contractor shall cease work in, and close access to, the exact area where hazardous material has been discovered. The Contractor shall take precautions to protect the site from surface run-off and precipitation, and prevent leaching of any hazardous material in the surrounding area.

2.3.2. UNEXPLODED ORDNANCE (UXO) CLEARANCE

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

2.4. DESIGN SUBMITTALS

Provide civil design submittals in accordance with RFP Section 01 33 16, DESIGN

AFTER AWARD and in compliance with SOW Section 1.0 – GENERAL.

65% Design Submittal:

a. Pre-Final Design Analysis of civil features.

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

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

d. Final Existing Conditions Plan.

e. Pre-Final Demolition Plan

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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, structures, wells, drainage, waste disposal vaults, latrines, etc.).

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

h. Pre-Final Utility Plans (Storm, Sanitary, and Water), Profiles, Cross Sections, and Details.

i. Pre-Final Landscape Plan and Details, including seed mix and seed coverage rate

j. Pre-Final Civil Specifications

95% Design Submittal:

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

100% Submittal:

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

Address all previous government review comments before submitting.

As Built Drawing Submittal:

All requirements for the 100% submittal, updated to reflect actual project conditions as constructed. In addition to the as-built requirements discussed in RFP Section

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

2.4.1. DESIGN ANALYSIS

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

Provide design assumptions. For design choices, discuss alternative systems considered, and provide rationale for the selected alternative.

The Design Analysis includes, but is not limited to:

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

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

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

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

d. Discussion of Storm system constraints and design decisions. Provide calculations for sizing of all necessary structures (including, but not limited to, pipe size and material, inlet and outlet structures). In the absence of Host Nation or Installation requirements, use a minimum 10-year storm frequency for analysis and design. Include pertinent geotechnical

9-Aug-19 Page 10 of 45 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. Site Survey as an appendix.

f. Geotechnical Investigation and Report as an appendix.

2.4.2 DESIGN DRAWINGS

Provide Civil design drawings of sufficient detail to address the requirements of each design submittal. Civil drawings will include plans, profiles, cross sections, and details of Civil features for the project, as necessary, to provide clear direction for construction of this project. Civil drawings shall also include temporary construction plans/methods that affect the design and construction of the project. These temporary plans include mobilization, 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. In the absence of the Host Nation CAD requirements, reference USACE A/E/C

Graphics Standard for graphic requirements.

2.4.3 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.

2.5 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. Host Nation Architectural Barriers regulations

g. WHO Fact Sheet 3.5 – VIP and ROEC latrines.

h. TB MED 577/NAVMED P-5010-10/AFMAN 48-138_IP, Sanitary Control and Surveillance of Field Water Supplies

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

j. WHO Technical Notes on Drinking-Water, Sanitation and Hygiene in Emergencies

k. TAG – Technical Note No. 13 (TAG13) – The Design of Ventilated Improved Pit

Latrines

2.6. SITE SURVEY

2.6.1. The Contractor is required to provide a topographic survey, by a licensed surveyor, of the site and all features that will be affected by construction as part of the contract work effort. The survey shall include all documentation in compliance with the applicable standards.

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2.6.2. 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.

2.6.3. The survey shall provide all data needed to design and construct the project. The survey shall also include sufficient documentation and analysis of the existing drainage to allow for new proper drainage design, including areas that will be affected by new drainage patterns and surfaces which new construction will abut or adjoin.

2.6.4. 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. Provide a copy of the survey in CAD, in addition to the paper/electronic requirements of the Design Analysis.

2.6.5. Locate and show on the topographic survey the following information:

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

b. Survey monuments. Include description.

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

d. Contours in intervals of 0.10 meters.

e. Buildings and other miscellaneous structures. Provide finish floor elevation of existing finished floor.

f. Pavements. Include pavement type.

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. 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.

2.6.6. Upon completion of construction, the original survey shall be updated with an As-Built survey of the site as constructed. The As-built survey shall be submitted to the COR for approval.

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

2.7. GEOTECHNICAL INVESTIGATION AND REPORT

2.7.1. General

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

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Perform a geotechnical investigation and assessment of the project site to determine the subsurface conditions and geotechnical parameters for foundation, grading, and utility design. 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.

Coordinate testing locations with the COR to avoid impact to existing utilities and facility operations. Utility locates, permits, pavement removal and vegetation clearing is the Contractor’s responsibility. Repair disturbed areas with compacted soil in non-paved areas. The repaired area must be flush with the adjacent surface.

Following restoration, stake and flag each of the hole locations with boring identification numbers. Provide a map indicating the borehole and test pit locations.

The Contractor is required to investigate subsoil conditions at the site location.

The Contractor will perform sufficient borings necessary for the design and construction of project features. A minimum two (2) borings will be performed, and each boring shall extend to a minimum of 2 m below grade. The Contractor shall obtain soil samples for testing as required for the computation of bearing capacities, settlement calculations, etc. The Contractor shall perform groundwater recordings as basis of design for underground construction, drainage facilities, sewage disposal facilities, ventilated pit latrines (VIPs), etc.

2.7.2. APPLICABLE DESIGN CRITERIA FOR GEOTECHNICAL

All investigation work, laboratory testing of soils and aggregate materials, and identification and assessment of subsurface materials, shall be in accordance with the latest editions of the Host Nation Governmental Building Codes and Local

Jurisdiction Governmental Codes (see section 1.14.4 Technical Criteria). In the absence of Host Nation Building Codes, the Contractor shall use the International

Building Code (IBC). Additional information can be found in the Uniform Facility

Criteria (UFC) document UFC 3-220-01, Geotechnical Engineering, which is available on the Internet at: http://www.wbdg.org/ccb/browse_cat.php?o=29&c=4

2.7.3. GEOTECHNICAL/HYDROLOGICAL REPORT

Unless otherwise approved by the COR, a licensed geotechnical engineer shall prepare the geotechnical/hydrological report. The geotechnical engineer shall be able to demonstrate that the engineer has at least 5 years of geotechnical engineering experience.

The investigation shall be performed and the report provided to the COR prior to finalizing the design of any features which are dependent on the condition and characteristics of the soil.

The results of the investigation and recommendations, specific to the geotechnical/hydrological design requirements at the site, shall be presented at the first design submittal in a geotechnical/hydrological report for review and approval by the COR. The Contractor shall use the data from this investigation to provide bearing capacity analyses and settlement calculations, assessment for infiltration capability, if necessary lateral earth pressure parameters; general soil condition, compaction requirements, and fill requirements.

As well as more general information, the geotechnical report shall specifically address the following:

Include, as a minimum, the following information:

http://www.wbdg.org/ccb/browse_cat.php?o=29&c=4

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

b. It shall clearly describe the subsurface conditions and the regional geology and seismic conditions at the site. It shall also recommend any soil replacement or amendment/treatment requirements, general fill and backfill placement procedures, preparation, placement, and compaction of onsite soils, borrow material, soil, structural fill, topsoil, and trench backfill. Include dewatering and temporary retaining structure needs.

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. It shall recommend the type of foundation system to be used for the building structure, allowable bearing capacities, expected settlement, depths of placement and bearing elevations for footings, grade beams, or slabs, minimum footing and grade beam dimensions, lateral earth pressure parameters

h. It shall provide specific information about earthwork procedures for any special features, such as Ventilated Pit Latrines (VIPs) or water catchment storage tanks.

i. Calculations to support conclusions and recommendations.

2.7.4. 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 depths, and any details that convey requirements for site preparation.

Perform any additional geotechnical investigations necessary for the design and construction of project features. Provide any geotechnical investigations and reports to the Government that are performed. Provide geotechnical information and assumptions in the Design Analysis to support design decisions.

Perform geotechnical work required for construction (i.e. compaction tests, inspection of structure foundation excavations). In the absence of Host Nation standards, perform the geotechnical scope of work per the International Building

Code (IBC) and UFC 3-220-01, Geotechnical Engineering.

2.8. FINAL DESIGN SITE PLANS

2.8.1. DESIGN CONDITIONS

Final plans will be prepared only after the site survey and geotechnical report have been provided by the contractor and accepted and approved by the COR.

It is the Contractor’s design responsibility to provide final design site plans based upon the RFP, field survey, geotechnical investigation, and coordination with the authorities. Any proposed site layout plan provided represents a general conceptual layout for the project, and is only a guideline for the work. The required facilities will need to be site-adapted to existing conditions determined by the site survey and other features. Any modifications shall meet the intent of the RFP design and be approved by the COR before implementation.

Finished Floor (FF) elevation will be such that a separation of 45-cm will be established between FF and Finished Grade (FG) around building. See architectural plans for cross-section/building elevations.

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Provide surface and drainage grading consistent with pre-demolition state. Slopes steeper than 2H:1V are not allowed.

Locate the proposed building and other improvements necessary for completion of this project 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 building a minimum of 3 meters away from existing buildings. Locate the latrine a minimum of 30m from the proposed school.

The location of the Contractor’s staging area(s) shall be shown on a plan for approval by the COR. The Contractor shall develop the final site plan after coordination with the COR and End-User.

The Contractor is responsible for all aspects of the project.

2.8.2. REMOVE EXISTING FOUNDATION/PAD - BUILD NEW SCHOOL BUILDING IN ORIGINAL

LOCATION

2.8.2.1. Remove existing foundation/pad. Site will be clear of debris and obstructions.

2.8.2.2. Upon foundation/pad removal, a new building foundation/pad, capable of supporting the proposed building and consistent with geotechnical investigation, architectural and structural plans, will be provided.

2.8.2.3. Existing utilities to building site will remain and be protected. Damage to existing utilities will be repaired or replaced to 2 meters beyond building footprint.

2.8.3. APPLICABLE DESIGN AND CONSTRUCTION DOCUMENTS FOR CIVIL

Civil design, construction, and material standards shall be in accordance with the latest editions of the Host Nation Governmental Building Codes and Local Jurisdiction

Governmental.

2.9. CIVIL – SITE DEVELOPMENT

2.9.1. MOBILIZATION

The Contractor shall provide mobilization and demobilization of all vehicles, material, and construction equipment to the project area. The Contractor shall prepare the site and perform all necessary preparatory work for digging and excavation. A mobilization plan, including the location of the Contractor’s proposed staging area(s), shall be submitted to the COR for approval. Reference RFP Section

00 74 00-SPECIAL CONDITIONS for other mobilization, access, and permit requirements.

2.9.2. CLEARING, GRUBBING, DEMOLITION, AND REMOVAL

Any structure, feature, or landscaping to be demolished and removed shall be shown on the demolition site plan. The Contractor shall stake-out the limits of disturbance before starting work. Demolition and removal work includes, but is not limited to:

trench excavation, spoil materials, rubbish piles, spent construction related materials and material canisters, miscellaneous debris, and leftover materials, which have been abandoned.

2.9.2.1. Clearing and grubbing of vegetation includes, but is not limited to:

trees, stumps, roots larger than 75 mm in diameter, brush, shrubs and other

9-Aug-19 Page 15 of 45 landscaping obstacles that obtrude, encroach upon, or otherwise obstruct the work.

Any trees within the site construction areas and closer than 3 m to the new facilities shall be removed, including rootstocks, to a depth of 50 cm below final grade. Any dead trees within the site construction areas shall also be removed.

The Contractor shall coordinate with the end-users and villagers prior to off-site disposal of any removed trees. Any trees, shrubs, rootstocks, and miscellaneous wood material that the villagers do not want to use, shall be disposed of off-site at the Contractor’s expense.

2.9.2.2. Tree cutting shall be limited to that necessary for construction of proposed facilities. A tree cutting plan shall be developed by the Contractor and provided to the COR for approval prior to any tree removal activities. Existing trees within the site construction areas that are to remain in place shall be properly protected during construction work. Any trees or shrubs that are to remain in place and are damaged by the Contractor shall be, irrespective of the degree of damage, replaced in kind and number.

2.9.2.3. All debris generated during demolition, including excess soil/rock/topsoil, shall be removed from the project site, and properly disposed of by the Contractor in accordance with host nation requirements. The Contractor shall be responsible for all applicable permits for demolition, removal, transport, and disposal of waste material generated by this work effort. The dumps for uncontaminated demolition material shall be official disposal sites. The

Contractor shall be responsible for meeting the requirements of the disposal site authorities regarding the material delivered there and for paying any dumping fees. The Contractor shall also provide the COR with documentation verifying the material has been properly disposed according to Host Nation laws and requirements.

2.9.3. 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.

2.9.4. 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, flooding, erosion, or pollution. Remove dust, dirt, and debris from work areas daily. Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas.

Apply local regulations regarding hauling and disposal.

2.9.5. EARTHWORK

The Contractor shall perform all earth work necessary for the installation of the proposed improvements.

Compaction under building foundations shall be at least 95% of maximum density.

Erosion control measures using rock, geotextiles, or other materials shall be included as required to stabilize the soil where necessary.

Control Tests shall be performed on all prepared subgrades in accordance with host nation and local government codes and standards. Copies of all test results shall be furnished to the COR.

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Trench backfill shall be with appropriate compactable soil materials and shall be compacted in layers of about 20cm each to at least 95% maximum density. Density tests shall be conducted by the Contractor in accordance with the technical specifications. The backfilling of pits and trenches shall only be performed after approval by the COR.

All excavated material, if satisfactory for reuse, should be used on the project site where fill is required. Only gravelly and sandy non-cohesive materials shall be considered satisfactory for fill and backfill, with the provision that in any soil type the maximum particle size does not exceed 75 mm, the plasticity index is not greater than 30, the soil is not frozen or contaminated, and the soil does not contain trash, debris, or organic material. In case of a difference of opinion about the classification of soil type acceptability, an independent professional soils engineer shall be engaged at cost to the Contractor.

The COR has the right to require that trench shoring be improved if the trench shoring measures provided by the Contractor are deemed insufficient in terms of safety. This improvement shall be at the Contractor's cost if the original

Contractor's measures did not meet the requirements of applicable safety criteria.

The removal of trench shoring after construction pit work or trenching shall only be performed after approval by the COR.

2.9.6. SITE GRADING

The proposed site grading will be developed to minimize the amount of earthwork required.

Finished grades adjacent structures on earth/grass/gravel surfaces will be selected which direct runoff away from structures at 5% for the first 2 m. Ditches, swales and open channels will be provided as required, and have a minimum longitudinal gradient of 0.5%.

The Contractor shall also similarly grade the soil subgrade before pavements, foundations, or concrete pads are installed, in order to keep the subgrade sufficiently dry until pavement or foundation work is complete.

All depressions and low areas within the project site shall be filled and brought to grade. The final site shall be graded to provide a uniform surface over the entire site with no abrupt changes in grade due to depressions or embankments. The Contractor shall take into account the annual wet and rainy periods and shall perform site grading such that there is no erosion or undermining of the fill areas for the new building and its associated exterior features.

2.9.7. STORM DRAINAGE

The Contractor shall provide the most appropriate drainage system for the site, in accordance with host nation and local government regulations. The Contractor will take into account the information gathered from the site survey, local climate and rainfall data, 10 year return storm frequency, and any geotechnical/hydrological investigation.

Storm drainage systems shall be designed to carry storm water away from structures and pavements by channel, piping, or sheet flow. The storm drainage system will be designed for a 10-year return storm frequency so that the likelihood of ponding around the building, or elsewhere on the project site, is minimized. Provide 2 meters of gravel erosion protection around the perimeter of the proposed school building.

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The Contractor shall take special care to avoid poor site drainage, stagnant water, and ponding anywhere on the project site in order to minimize the likelihood of water-borne diseases, which are prominent in this region.

Connect building roof gutters and downspouts to a rainwater tank (5000 liter).

Locate tank out of pathways and windows. Provide a spigot at the bottom of each rainwater tank. Below the spigot, provide a splash block that will drain water away from building foundation a minimum of 3 meters per site grading requirements. Provide an overflow system from the tank to splash blocks that drain away from foundation 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 60 centimeters above finish grade. Provide structural tie downs for the tank. Provide an opening for cleaning and allow access into the tank. 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).

2.9.8. SANITARY SYSTEM

The project utilizes VIP latrine cabin sanitary septic system as discussed in SOW

Section 3.0 – ARCHITECTURE. If the Geotechnical Investigation determines that groundwater is less than 1 meter deep, raise the latrine per WHO Fact Sheet 3.5. In the absence of Host Nation standards, design the latrine disposal system per WHO

Fact Sheet 3.5.

2.9.9. LANDSCAPING

The Contractor shall replace in number any large trees that were removed in part to construct the new building and its associated exterior features.

The Contractor shall provide a landscaping plan showing, at a minimum, the exact existing landscaping to be removed and the location and limits of areas to be restored and/or repaired which were damaged by contractor’s work effort, if any.

Restoration plan will include, at a minimum, a plan for re-establishment of ground cover consistent with the surrounding area. These items shall be indicated on the new site plan.

End of Section e7de9sli Highlight

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3.0 ARCHITECTURAL

3.1 PROJECT DESCRIPTION

Design, demolition and rebuilding work of Papri School in Papri, Togo, Africa. The existing facility is a one-story light metal stud – cement panel construction containing four classrooms, one outdoor classroom, an administrative office, a storage room, an integrated rain water collection system and a separate latrine facility. The project construction was completed in 2014. Storm caused severe structural damage in spring 2017.

Design and then perform the demolition and rebuilding work of one-story, solid masonry / concrete building that will serve as a secondary school. Demolish the entire existing building and build the facility anew.

The rebuilt school building will contain four classrooms, one outdoor classroom, an administrative office, a storage room, a battery room, an integrated rain water collection system and a separate latrine facility. The Main Functional

Requirements are as follows:

a) Provide maximum use of natural ambient Light (without glare = no direct sunlight);

b) Provide maximum use of natural ventilation and passive cooling for a cool climate inside the school building;

c) Provide minimum room dimensions as shown on attached as-built drawings (unless required to be larger by local building code);

d) Provide minimum wall height of 3m (unless required to be higher by local building code).

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

3.1.1 DESIGN

Provide a design and construction package that uses the space allocations, functional adjacencies, design details, and features given or referenced in this

RFP. The design must incorporate all referenced codes and regulations. The

Contractor is responsible for creating additional details as required to complete a full design. All details must conform to the requirements of this RFP and are subject to the approval of the COR.

The rebuilt school building must be designed and constructed on the basis of the existing functional layout. As-built drawings have been attached and provided for reference only. They do not necessarily represent an approved floor plan or design. The Contractor is responsible for providing a design that meets all requirements of the User and the codes and criteria referenced in this Statement or Work.

3.1.2 DESIGN SUBMITTALS

Provide all architectural submittals after contract award in accordance with

Section 01 33 16 DESIGN AFTER AWARD and Section 01 33 00 SUBMITTAL PROCEDURES.

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

3.1.2.2 65% DESIGN SUBMISSION

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

a. Code Summary – Provide a tabular code compliance summary.

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

c. Demolition Plans – Provide existing floor plans, indicating all demolition required.

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

e. Ceiling Plans – Provide reflected ceiling plans for all rooms, indicating ceiling materials and fixtures, scale 1:50.

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

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

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

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

j. Interior Elevations – Provide interior elevations of all latrines, indicate critical heights of surfaces and plumbing fixtures and describe all…