20R00440001.pdf

W912GB20R0044

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this amendment is to:

- Provide government responses to all bidder inquiries

- Update SOW section 3.4.4.5.1 Concrete Floor Sealer

1. CONTRACT ID CODE PAGE OF PAGES

1 44

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 24-Aug-2020

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912GB20R0044

X 9B. DATED (SEE ITEM 11)

07-Aug-2020

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

24-Aug-2020

CODE

CONTRACTING DIVISION

US ARMY CORPS OF ENGINEERS

KONRAD ADENAUER RING 39

D-65187 WIESBADEN GERMANY

WIESBADEN 65187

W912GB 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 01 00 00 - GENERAL REQUIREMENTS

The following have been added by full text:

STATEMENT OF WORK

US Army Corps of Engineers Europe District

APO AE 09049

ar172

Statement of Work Project

Number:

SG-HA-2019-

00026648

School in Bowe, Senegal

Prepared by: Design Section

Engineering Branch

17AUG2020

01 10 10 Statement of Work School in Bowe, Senegal

SECTION 01 10 10

STATEMENT OF WORK

SECTION TABLE OF CONTENTS:

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL

4 STRUCTURAL

5 ELECTRICAL & COMMUNICATIONS

6 MECHANICAL

ATTACHMENTS

Attachment # 1 Project Location Attachment # 2 Proposed Site Plan Attachment # 3 Functional Layout

Attachment # 4 Preparation of Structural Calculations AOR AFRICOM with Attachment

Attachment # 5 Dedication Plaque Attachment # 6 TAG13 The Design of VIP Latrines Attachment # 7 300 Liter Handwashing Water 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 school facility in Bowe, Senegal; Latitude 13°49'9.38“N, Longitude 16° 9'27.29“W (See Attachment #1-Project Location.)

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

a. Clear, grub, and grade the site

b. Construct one (1) new school building with two stories, (2) classrooms per story.

c. Construct one (1) new multi-compartment ventilated improved pit (VIP)

Latrine Building

d. Provide 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 ITEMS AND OPTIONAL ITEMS

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This Statement of Work addresses the technical requirements necessary to complete all work associated with this project. For information and requirements regarding the allocation of pricing between elements of the work, refer to Specification Section 01 22 00 PRICE AND PAYMENT PROCEDURES. The Schedule of Items identifies the breakdown between the individual base items and optional items for all work identified in this Statement of Work, associated drawings, and attachments. All work as described in these documents is included in either the Base or Optional Items. Consider all items not specifically identified in the Optional Items as part of the Base Items.

1.3 FUNCTIONAL AREAS

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

1.4 SUBMITTALS

Designer of Record approval is required for submittals with a “DA” designation. Government approval is required for submittals with a “G” or “GA” designation. Submittals having an “FIO” designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-05 Design Data

65% Pre-Final Design; DA/GA 95% Final Design; DA/GA 100% Corrected Final Design; DA/GA

SD-06 Test Reports Test Results and Reports; FIO

1.4.1 DESIGN SUBMITTALS

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

1.4.2 TEST REPORTS

Provide all test results and reports identified in this SOW to the Government as a submittal in accordance with Specification Section 01 33 00 SUBMITTAL PROCEDURES. Submittals will be considered for information only (FIO) submittals unless specifically identified as a submittal requiring government approval.

Coordinate with the Contracting Officer (KO) after award for the specific items to be included in the submittal register.

1.5 MATERIALS AND EQUIPMENT

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

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

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1.5.1 LIFE-SPAN

Construction must have an expected life span of 25 years.

1.5.2 MAINTAINABILITY

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

1.5.3 OPERABILITY

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

1.5.4 STANDARDIZATION

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

1.6 DESIGN DIMENSIONS

Develop the design using the metric system.

1.7 DESIGN CRITERIA

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

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

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

1.8 SPECIAL CONSTRUCTION REQUIREMENTS

1.8.1 DEMOLITION

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

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

1.8.1.1 ABATEMENT AND DISPOSAL

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

1.8.1.2 DEMOLITION AND DISPOSAL OF HAZARDOUS MATERIAL

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

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

END OF SECTION

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2.0 CIVIL AND GEOTECHNICAL

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

2.1 SCOPE SUMMARY

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

2.2 EXISTING CONDITIONS

2.2.1 TOPOGRAPHY

There is no known topographic survey for the project site. The existing site contains buildings, gravel paths, utilities, fences/walls, and vegetation as shown on Attachment #2 - Conceptual Site Plan. The existing information shown on Attachment #2 - Conceptual Site Plan was compiled from google earth and site photos.

2.2.2 UTILITIES

There is no known storm system at the site. The school headmaster stated that minor flooding and ponding had occurred previously in the NW and SE corners of the compound during the rainy season.

There is a water connection with a water meter and water faucet on-site that provides water to the site.

Currently the site has one exposed latrine on the east side of the site that is non-functional and set to be replaced. The existing barn on the east wall appears to be connected to a septic tank that is also reportedly not functional.

The school has a metered power connection entering the compound behind the existing classroom and dormitory.

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

2.2.3 GEOTECHNICAL

There is no geotechnical information available for the project site.

The Contractor must perform a Geotechnical Investigation and submit a Geotechnical Report as part of the Design Analysis.

2.2.4 ENVIRONMENTAL

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

2.2.5 EXISTING CONDITIONS INVESTIGATION

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

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

Surface and subsurface materials or obstacles to be encountered insofar as this information is reasonably ascertainable from an inspection of the site and due diligence research of as-built drawings, geotechnical reports, environmental reports, and publicly available information on the site.

Mobilization and staging constraints.

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2.2.6 EXISTING BUILDINGS

The existing buildings on the site, such as the existing school with dormitories and the school admin building must be able to remain in operation during construction.

2.3 DESIGN SUBMITTALS

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

65% Design Submittal:

Pre-final Design Analysis Final Site Survey Final Geotechnical Report Final Existing Conditions Plan

Pre-Final Site layout plan - Indicate existing and proposed Civil features.

Include other disciplines’ features (faded back) that affect the Civil Design (buildings, mechanical structures, electrical utilities, etc.).

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

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

Pre-Final Fencing and Outdoor Furnishings Details Preliminary Landscape Plan and Details, including seed mix and seed coverage rate Pre-Final Civil Specifications

95% Design Submittal:

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

Incorporate all 65% design comments.

100% Submittal:

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

As Built Drawing Submittal:

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

2.3.1 DESIGN ANALYSIS

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

The Design Analysis includes but is not limited to:

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.

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.

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Discussion of Earthwork and Site Grading constraints and design decisions.

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

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. Provide drainage basin map(s), rainfall data, and coefficients used. For each section of pipe, include analyses indicating pipe size, friction factor, length, elevations at each end of pipe, slope, design flow (Q), maximum flow capacity, design depth of flow, design percentage full, and design flow velocity. Provide calculations for sizing of structures and any infiltration. Provide documentation for the 100 year flood elevation determination. Use the Rational Method or TR-55 for analysis and design. In the absence of Host Nation or Installation requirements, use a minimum 10-year storm frequency for analysis and design. Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10- Utilities. Include pertinent geotechnical information that affects the storm system. Confirm that the existing receiving system has adequate capacity to receive the additional stormwater flow generated by the project.

Discussion of Sanitary system constraints and design decisions. For each section of pipe, include analyses indicating pipe size, friction factor, length, elevations at each end of pipe, slope, design flow (Q), maximum flow capacity, design depth of flow, design percentage full, and design flow velocity. Provide calculations for sizing of structures, septic tanks (if applicable), infiltration structures, and pumps. Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10- Utilities. Include pertinent geotechnical information that affects the sanitary system. Determine if the existing receiving system is functional, and if so, has adequate capacity to receive the additional sanitary flow generated by the project.

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 well and water tank calculations.

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

Provide vehicular circulation patterns using Autoturn or equivalent method.

Provide sight distance calculations and sketches. Provide calculations for the pavement section. Include pertinent geotechnical information that affects the pavement design.

Discussion of Landscaping constraints and design decisions. Site Survey as an appendix.

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

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

2.4 DESIGN CRITERIA

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

Uniform Facility Criteria (UFC) 3-201-01, Civil Engineering UFC 3-220-01, Geotechnical Engineering USACE A/E/C Graphics Standard (ERDC/ITL TR-12-1)

World Health Organization (WHO) Guidelines for Drinking-water Quality ANSI/AWWA A100-06, Water Wells TB MED 577/NAVMED P-5010-10/AFMAN 48-138_IP, Sanitary Control and Surveillance of Field Water Supplies NTRP 4-04.2.13/FM 3-34.469/AFMAN 32-1072, Water-Well Drilling Operations World Health Organization (WHO) sanitation guidelines WHO Technical Notes on Drinking-Water, Sanitation and Hygiene in Emergencies

2.5 GEOTECHNICAL INVESTIGATION AND REPORT

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

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

Provide a map indicating the borehole and test pit locations.

2.5.1 REPORT

Include, as a minimum, the following information:

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

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

Site map of borehole and test pit locations.

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

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.

Reports of all the field and laboratory testing.

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.

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

Soil Resistivity.

Recommendations for pavement design and construction.

Recommendations for the storm and sewage systems involving infiltration. Calculations to support conclusions and recommendations.

2.5.2 DESIGN DRAWINGS AND SPECIFICATIONS

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

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

2.6 SITE SURVEY

Conduct and provide a topographic survey from a licensed surveyor that includes all existing site information needed to design and construct the project. Survey must be conducted prior to the first design submittal. Include x, y, and z coordinates to the nearest 0.005 meters, dimensions, material, and basic characteristics of all features within the project site limits, as well as all features outside of the project site limits that will affect the design and construction of the project. Research record drawings to obtain utility and 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:

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

Survey monuments. Include description.

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.

Contours in intervals of 0.25 meters.

Buildings and other miscellaneous structures. Provide finish floor elevation.

Pavements and other roadways/paths. Include material type, thicknesses, joint patterns, and pavement markings, as applicable.

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

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

pipe sizes and materials.

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

Signs. Include sign text.

Geotechnical boring locations.

Locate environmentally sensitive areas (determined and marked by others). North arrow and scale of drawing.

Legend depicting the symbols and abbreviations used on the drawing.

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

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

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

Reference UFC 3-201-01, Civil Engineering, Section 2-2.2-SURVEYING for survey requirements. Use the Universal Transverse Mercator (UTM) coordinate system.

The vertical coordinate system must be based on sea level.

2.7 SITE LAYOUT

Locate the proposed building and other improvements as indicated on 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 proposed building outside the dripline of existing trees.

Align the proposed building on the same axis as adjacent buildings and property lines.

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

2.8 DEMOLITION

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

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 KO.

2.8.3 TREES

Unless otherwise noted on Attachment #2 - Conceptual Site plan, protect trees which might be damaged during construction, with a 1.8 meter high fence around the dripline of the tree(s), which is assumed to be the extent of the tree’s roots.

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

2.8.4 UTILITIES

Any existing utilities encountered that are impacted by this project must be protected, or relocated if protection is not feasible. Remove existing and abandoned utilities under or within 3.0 m of the foundation of any proposed facility or building foundation. Reroute existing utilities to remain in accordance with SOW Section 2.10-UTILITIES. Abandoned utilities must be removed up to the utility main (or next utility main junction) and capped. Manholes or underground structures to be abandoned must be removed to a minimum depth of 50 centimeters below finish grade. Fill abandoned manhole or structure per Section 2.9-EARTHWORK requirements.

2.8.5 DUST, DEBRIS, AND EROSION CONTROL

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

Install erosion control measures before beginning construction. Do not use water if it

17-Aug-20 Page 10 of 42 results in hazardous or objectionable conditions such as, but not limited to, flooding, erosion, or pollution. Remove snow, dust, dirt, and debris from work areas daily. Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas. Apply local regulations regarding hauling and disposal.

2.9 EARTHWORK

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

2.9.1 PLANS AND SPECIFICATIONS

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.

2.9.2 CONTAMINATED SOIL

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

2.9.3 CULTURAL RESOURCES

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

2.9.5 SATISFACTORY MATERIAL

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

Unsatisfactory material, and surplus excavated material not required for fill, must be disposed of offsite, and is the responsibility of the Contractor. Borrow material may be required for construction from sources off site. Borrow materials are to be free of hazardous materials and contaminants. Any soil brought in from off-site sources must be certified clean.

2.9.6 BACKFILL COMPACTION

In the absence of Host Nation requirements and geotechnical recommendations, fill and backfill must be placed in layers of 20 centimeters loose thickness and compacted to a minimum 95% of the maximum dry density as determined by Host Nation test method equivalent to ASTM D-1557 (Modified Proctor test). Provide density tests on all lifts at a frequency of 1 test per 40 square meters for foundations and parking, and 1 test per 30 meters of road and utility trench.

Round up to nearest whole number (i.e. a 25 square meter foundation requires one test). The location of all tests must be selected by the Contractor’s geotechnical engineer, and copies of all test results must be furnished to the KO. All structure foundation excavations must be inspected and approved by the Contractor’s Geotechnical Engineer prior to placing concrete. Repair earthwork areas as recommended by the Contractor’s Geotechnical Engineer, and approved by the KO.

2.9.7 ENGINEERED SOIL SUPPORT SYSTEMS

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

2.9.8 SITE GRADING

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

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.

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.

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

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

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. See Sections 5.0-ELECTRICAL, Section 6.0-MECHANICAL, and Section 7.0-FIRE PROTECTION for additional utility requirements.

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

Minimum cover over pipes is 0.6 meters; or sufficient to support imposed dead and live loads for the pipe materials used; whichever is more stringent. Place plastic warning tape along the route of the buried pipe after installation at a height of

0.3 meters above the pipe.

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

Provide utility materials per IBC requirements. Provide corrosion protection for utilities that provides the minimum life expectancy specified in GENERAL Section

1.0. Any piping or equipment exposed to sunlight must be coated with protective coatings suitable for UV exposure with a minimum expected coating life of 10 years before recoating.

2.10.1 STORM SYSTEM

Provide a gravity storm drainage system to direct runoff away from improvements, eliminate ponding, and prevent erosion. A pump system is not allowed. If using an infiltration or detention system, locate infiltration/detention facilities a minimum of 3 meters away and downhill from structures. Provide an overflow to any proposed infiltration/detention systems that will not damage improvements or cause erosion. Allowable storm pipe materials include polyvinyl chloride (PVC), high density polyethylene (HDPE), ductile iron, or reinforced concrete pipe. In the absence of Host Nation standards, design the storm drainage system per UFC 3- 201- 01, Civil Engineering Chapter 3-Storm Drainage Systems.

With a new school building and latrine structure in the compound, there will be an elevated risk of flooding the existing classroom and shop. Ensure runoff is directed away from any existing or new facilities. The new school building and latrine should be slightly elevated to mitigate flooding risk.

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

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

2.10.2 SANITARY SYSTEM

Provide an enclosed standard two-holes VIP (ventilated improved pit) latrines with integrated dual system septic tanks as shown in Attachment 3. See Section

3.3.2 LATRINE BUILDING for proposed layouts and functions. Design of the latrine system, including volumes and maintenance, is detailed in Attachment 6.

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.

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

2.10.3 WATER SYSTEM

Provide a water system to connect the proposed building to the site’s existing water system, which appears to consist of a water connection with a water meter and water faucet as shown in Attachment #2 - Conceptual Site Plan. Design the system to meet all flow requirements of the facility, including potable water and fire flows.

All new water distribution piping must have a minimum horizontal separation of 3 m from all new or existing sanitary water systems.

Contractor must perform testing and an assessment on the water system. Upgrade or decommission and replace the system in order to provide needed flow that the site will require with the increased use.

After installation, test water supply lines according to local codes for leakage.

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

2.11 PAVEMENT

Provide minimum 0.90 meter wide concrete building apron around the entire building and an accessibility (wheelchair) ramp. Install concrete over minimum 30 centimeters aggregate. Install the top of the apron a minimum of 24 centimeters above the adjacent ground. Provide a minimum of 5 centimeters of bury on the concrete. Provide expansion joint between building and apron.

For PCC, reference SOW Section 4.0 - STRUCTURAL for concrete requirements.

Perform subgrade tests for all pavements as described in Section 2.9 - EARTHWORK.

The location of all tests must be selected by the Contractor’s Geotechnical Engineer, and copies of all test results must be furnished to the KO.

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2.12 LANDSCAPING

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

2.13 MOBILIZATION / STAGING / PERMITS

Locate mobilization and staging within the footprint indicated on Attachment #2 – Conceptual Site Plan as much as practicable. If mobilization and staging areas must be located off of the site due to the small site size, obtain all applicable permissions and permits related to staging and storage. Locate mobilization and staging to areas that do not disrupt operations at the installation. Reference RFP Section 00 74 00-SPECIAL CONDITIONS for other mobilization, access, and permit requirements.

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3.0 ARCHITECTURAL

3.1 PROJECT DESCRIPTION

Provide and perform architectural design and construction services to provide a complete, accessible, functional, and usable four-classrooms building and latrines in Bowe, Senegal.

Provide new two-story solid masonry / concrete building that will serve as a classroom building and a single-story solid masonry / concrete latrines.

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

3.1.1 DESIGN

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

3.1.2 DESIGN SUBMITTALS

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

PROCEDURES.

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

3.1.2.1 65% DESIGN SUBMISSION

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

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

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

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

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

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

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

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

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

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

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

3.1.2.3 95% DESIGN SUBMISSION

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

17-Aug-20 Page 15 of 42 to the project:

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

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

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

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

e. Building Section – Indicate heights.

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

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

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

i. Stair Section and Details.

j. Finish Schedule – Indicate all proposed finishes.

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

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

3.1.2.4 100% DESIGN SUBMISSION

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

3.2 TECHNICAL CRITERIA AND STANDARDS

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

3.2.1 LIFE SAFETY REQUIREMENTS

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

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

In the absence of Host Nation codes and standards, for individual concerns of Life Safety the Contractor must follow appropriate US codes and standards, including the International Building Code (IBC).

3.2.2 HANDICAPPED ACCESSIBILITY REQUIREMENTS

Handicapped accessibility is not required.

3.3 GENERAL SCOPE OF WORK

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

17-Aug-20 Page 16 of 42 materials, when selecting materials and building systems to be incorporated into the project. When requested, the Contractor must provide documentation demonstrating that a chosen alternative material is life cycle cost effective.

3.3.1. SCHOOL BUILDING

Provide one (1) two-story, reinforced concrete and masonry School Building with a sloped, gabled metal roof. Exterior finishes include plastered and painted exterior walls and metal panel roofing. The School Building must comply with all Host Nation requirements. Provide the following functional areas for the School Building:

Room

Room Name Function Approximate Size (m2)

101 Classroom Classroom for up to 50 students 63.00 102 Classroom Classroom for up to 50 students 63.00 103 Terrace Covered, open-air walkway 37.20 104 Stairwell Covered, exterior, 1/2 Area 6.96 201 Classroom Classroom for up to 50 students 63.00 202 Classroom Classroom for up to 50 students 63.00 203 Terrace Covered, open-air walkway 37.20 204 Stairwell Covered, exterior, 1/2 Area 6.96

Total Net Area to be provided must be approximately 340.32 m2.

3.3.2 LATRINE BUILDING

Provide one (1), one-story, reinforced concrete and masonry multi-compartment Latrine Building with concrete sloped roofs and two metal tanks with faucets for handwashing. The building must have four latrine compartments. Exterior finishes include plastered and painted exterior walls. Provide ventilated improved pit (VIP) style latrines complying with all Host Nation requirements and the design guidance provided in Attachment #6 TAG13 The Design of Ventilated Improved Pit Latrines. Provide the following functional areas for each Latrine Building:

Room # Room Name Function Approximate

Size (m2) 01 Latrine Latrine compartment with two (2) holes 1.76 02 Latrine Latrine compartment with two…