B.08 SF30 W912GB25R00410001 Ndava Primary School Construction.pdf

W912GB25R0041

IAF-25-0004

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

W912GB25R0041 - IAF-25-0004 Ndava Primary School Construction

The purpose of this amendment is to:

1. Revise and replace the Statement of Work (SOW) w ith the version dated 11 June 2025.

2. Align the CLIN structures and extended descriptions w ith the revised SOW.

3. Add Contract Line Item Number (CLIN) 0005, Option 3, for Design and Construct Water Well.

4. Extend the Solicitation Due Date to 03 July 2025, at 10:00 CEST.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 47

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

16C. DATE SIGNED

BY 12-Jun-2025

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 W912GB25R0041

X 9B. DATED (SEE ITEM 11)

27-May-2025

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 X is extended, 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 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

12-Jun-2025

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 00 10 00 - SOLICITATION

The required response date/time has changed from 26-Jun-2025 10:00 AM to 03-Jul-

2025 10:00 AM.

CLIN 0003

The CLIN extended description has changed from:

Payment will be made for costs associated with the design, procurement, and construction of a new rainwater catchment system, inclusive of a handwash station, at the Ndava Primary School project location, as indicated in SECTION 01 10 10. This work shall include all applicable demolition and removals work to support the work elements contained in this item.

To:

Payment will be made for costs associated with the design, procurement, and construction of a new rainwater catchment system, inclusive of a handwash station, at the Ndava Primary School project location, as indicated in SECTION 01 10 10. This work shall include all applicable demolition and removals work to support the work elements contained in this item. Work for this CLIN item includes the elevated water tank identified in SECTION 01 10 10 subpart 6.5.5 Elevated Water Tank and all ancillary equipment. This CLIN will not be awarded if OPTION 0003 CLIN 0005 is awarded.

CLIN 0005 is added as follows:

ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

0005 1 Job OPTION Design and Construct Water Well

FFP

Payment will be made for costs associated with the design, procurement, and construction of a new water well (for bidding purposes, assume the required well depth is no more than 50-meters deep from ground surface), at the Ndava Primary School project location, as indicated in SECTION 01 10 10. This work shall include all applicable demolition and removals work to support the work elements contained in this item. Work for this CLIN item includes the elevated water tank identified in SECTION 01 10 10 subpart 6.5.5 Elevated Water Tank and all ancillary equipment. This CLIN will not be awarded if OPTION 0001 CLIN 0003 is awarded.

FOB: Destination

PSC CD: Y1JZ

NET AMT

The following Delivery Schedule for CLIN 0005 has been added:

DELIVERY DATE QUANTITY SHIP TO ADDRESS DODAAC /

CAGE

450 dys. ANP 1 U.S. ARMY CORPS OF ENGINEERS, EUROPE

CENAU-CT

KONRAD-ADENAUER RING 39

WIESBADEN 65187

(+49)611-9744-2600 FOB: Destination

WK4SF6

SECTION 00 70 00 - CONDITIONS OF THE CONTRACT

The following Acceptance/Inspection Schedule was added for CLIN 0005:

INSPECT AT INSPECT BY ACCEPT AT ACCEPT BY

Destination Government Destination Government

The following have been modified:

52.244-2 SUBCONTRACTS (JUN 2020)

(a) Definitions. As used in this clause--

Approved purchasing system means a Contractor's purchasing system that has been reviewed and approved in accordance with Part 44 of the Federal Acquisition Regulation (FAR).

Consent to subcontract means the Contracting Officer's written consent for the Contractor to enter into a particular subcontract.

Subcontract means any contract, as defined in FAR Subpart 2.1, entered into by a subcontractor to furnish supplies or services for performance of the prime contract or a subcontract. It includes, but is not limited to, purchase orders, and changes and modifications to purchase orders.

(b) When this clause is included in a fixed-price type contract, consent to subcontract is required only on unpriced contract actions (including unpriced modifications or unpriced delivery orders), and only if required in accordance with paragraph (c) or (d) of this clause.

(c) If the Contractor does not have an approved purchasing system, consent to subcontract is required for any subcontract that—

(1) Is of the cost-reimbursement, time-and-materials, or labor-hour type; or

(2) Is fixed-price and exceeds—

(i) For a contract awarded by the Department of Defense, the Coast Guard, or the National Aeronautics and Space Administration, the greater of the simplified acquisition threshold, as defined in FAR 2.101 on the date of subcontract award, or 5 percent of the total estimated cost of the contract; or

(ii) For a contract awarded by a civilian agency other than the Coast Guard and the National Aeronautics and Space Administration, either the simplified acquisition threshold, as defined in FAR 2.101 on the date of subcontract award, or 5 percent of the total estimated cost of the contract.

(d) If the Contractor has an approved purchasing system, the Contractor nevertheless shall obtain the Contracting Officer’s written consent before placing the following subcontracts:

(e)(1) The Contractor shall notify the Contracting Officer reasonably in advance of placing any subcontract or modification thereof for which consent is required under paragraph (b), (c), or (d) of this clause, including the following information:

(i) A description of the supplies or services to be subcontracted.

(ii) Identification of the type of subcontract to be used.

(iii) Identification of the proposed subcontractor.

(iv) The proposed subcontract price.

(v) The subcontractor’s current, complete, and accurate certified cost or pricing data and Certificate of Current Cost or Pricing Data, if required by other contract provisions.

(vi) The subcontractor’s Disclosure Statement or Certificate relating to Cost Accounting Standards when such data are required by other provisions of this contract.

(vii) A negotiation memorandum reflecting—

(A) The principal elements of the subcontract price negotiations;

(B) The most significant considerations controlling establishment of initial or revised prices;

(C) The reason certified cost or pricing data were or were not required;

(D) The extent, if any, to which the Contractor did not rely on the subcontractor’s certified cost or pricing data in determining the price objective and in negotiating the final price;

(E) The extent to which it was recognized in the negotiation that the subcontractor’s certified cost or pricing data were not accurate, complete, or current; the action taken by the Contractor and the subcontractor; and the effect of any such defective data on the total price negotiated;

(F) The reasons for any significant difference between the Contractor’s price objective and the price negotiated; and

(G) A complete explanation of the incentive fee or profit plan when incentives are used. The explanation shall identify each critical performance element, management decisions used to quantify each incentive element, reasons for the incentives, and a summary of all trade-off possibilities considered.

(2) The Contractor is not required to notify the Contracting Officer in advance of entering into any subcontract for which consent is not required under paragraph (c), (d), or (e) of this clause.

(f) Unless the consent or approval specifically provides otherwise, neither consent by the Contracting Officer to any subcontract nor approval of the Contractor’s purchasing system shall constitute a determination—

(1) Of the acceptability of any subcontract terms or conditions;

(2) Of the allowability of any cost under this contract; or

(3) To relieve the Contractor of any responsibility for performing this contract.

(g) No subcontract or modification thereof placed under this contract shall provide for payment on a cost-plus-a-percentage-of-cost basis, and any fee payable under cost-reimbursement type subcontracts shall not exceed the fee limitations in FAR 15.404-4(c)(4)(i).

(h) The Contractor shall give the Contracting Officer immediate written notice of any action or suit filed and prompt notice of any claim made against the Contractor by any subcontractor or vendor that, in the opinion of the Contractor, may result in litigation related in any way to this contract, with respect to which the Contractor may be entitled to reimbursement from the Government.

(i) The Government reserves the right to review the Contractor’s purchasing system as set forth in FAR Subpart 44.3.

(j) Paragraphs (c) and (e) of this clause do not apply to the following subcontracts, which were evaluated during negotiations:

(End of clause)

The following have been deleted:

52.225-9 Buy American--Construction Materials OCT 2022

52.243-7 Notification Of Changes JAN 2017

SECTION 01 00 00 - GENERAL REQUIREMENTS

The following have been modified:

STATEMENT OF WORK

Statement of Work – Amendment #1 Project Number:

Proj. No.: 512314

Fiscal Year:

2025 New School Buildings for Ndava Primary School, Municipality of Oyem, Gabon

Prepared by: Design Branch

Engineering Division 19 MAR

2025 11 JUN 2025

SECTION 01 10 10

STATEMENT OF WORK

SECTION TABLE OF CONTENTS:

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL

4 STRUCTURAL

5 ELECTRICAL & COMMUNICATIONS

6 MECHANICAL & PLUMBING

ATTACHMENTS

Attachment # 1 Location Map Attachment # 2 Conceptual Site Plan Attachment # 3 Conceptual Floor Plan, Section and Elevations Attachment # 4 Structural Calculations Guideline Attachment # 5 Dedication Plaque Attachment # 6 Scope For Independent Structural Proofing Attachment # 7 Gabon Standard Classroom Plan (For Information Only) Attachment # 8 Ventilated Improved Pit (VIP) Latrine Attachment # 9 TAG13 The Design of Ventilated Improved Pit (VIP) Latrines

1.0 GENERAL

1.1 PROJECT DESCRIPTION

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

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

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

a. Clear, grub, and grade the site

b. Construct new facility consisting of two classroom buildings, pit latrines and a rainwater collection water system

c. Provide new access road, access drive and parking lot

d. Provide new perimeter fence

e. Provide concrete apron around the buildings

f. Provide two concrete ramps to access each school building

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

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

1.2 GENERAL REQUIREMENTS

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

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

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 to the Contracting Officer (KO) 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 RFP Section 01 33 16-DESIGN AFTER AWARD. The milestones for this project are indicated above in Section 1.4 SUBMITTALS. The specific requirements of each milestone are described in each discipline-specific section of this Specification.

1.4.2 TEST REPORTS

Provide all test results and reports identified in this SOW to the Government as a submittal in accordance with RFP Section 01 33 00-SUBMITTAL PROCEDURES. Submittals will be considered for information only (FIO) submittals unless specifically identified as a submittal requiring government approval. Coordinate with the KO after award for the specific items to be included in the submittal register.

1.5 MATERIALS AND EQUIPMENT

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

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

1.5.1 LIFE-SPAN

The facility and the installed equipment must be permanent construction with an expected lifespan of more than 25 years.

1.5.2 MAINTAINABILITY

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

1.5.3 OPERABILITY

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

1.5.4 STANDARDIZATION

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

1.6 DESIGN DIMENSIONS

Develop the design using the metric system.

1.7 DESIGN CRITERIA

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

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

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

1.8 SPECIAL CONSTRUCTION REQUIREMENTS

1.8.1 DEMOLITION

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

1.8.1.1 ABATEMENT AND DISPOSAL

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

1.8.1.2 LOCATION OF HAZARDOUS MATERIAL

The Contractor is responsible to survey the site and determine if hazardous materials exist. If hazardous materials are found to exist, immediately notify the KO and provide the results of the relevant sampling and testing. Provide the hazardous material report no later than 30 days after Notice to Proceed (NTP) for information and approval.

1.8.2.6 ENVIRONMENTAL TOBACCO SMOKE CONTROL

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

1.8.2.7 REDUCE ENVIRONMENTAL IMPACT OF MATERIALS

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

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

END OF SECTION

2.0 CIVIL AND GEOTECHNICAL

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

2.1 SCOPE SUMMARY

Civil works for this project include, but are not limited to, site survey, geotechnical investigation, site layout, earthwork, pavement, and fencing. Refer to the bid schedule for which of these are base bid or optional.

2.2 EXISTING CONDITIONS

2.2.1 TOPOGRAPHY

There is no known topographic survey for the project site. The existing site is underdeveloped and contains vegetation as shown on the attached Conceptual Site Plan. The existing information shown on Attachment #2 - Conceptual Site Plan was compiled from Google Earth, and site photos.

2.2.2 UTILITIES

There is no storm system at the site.

There is no water system at the site.

There is no sanitary system at the site.

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

2.2.3 GEOTECHNICAL

There is no geotechnical information available for the project site.

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

2.2.4 ENVIRONMENTAL

There are no known environmental protection areas or archeological preservation areas on the project site.

There is no prior knowledge of any hazardous or contaminated materials in the site’s soil.

2.2.5 EXISTING CONDITIONS INVESTIGATION

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

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

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

c. Mobilization and staging constraints.

2.3 DESIGN SUBMITTALS

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

65% Design Submittal:

a. Pre-Final Design Analysis of civil features.

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

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

d. Final Existing Conditions Plan.

e. Pre-Final Demolition Plan

f. Pre-Final Site Layout Plans - Indicate existing and proposed Civil features.

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

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

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

i. Pre-Final Fencing Details

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

k. Preliminary Civil Specifications

95% Design Submittal:

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

100% Submittal:

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

As Built Drawing Submittal:

In addition to the as-built requirements discussed in RFP Section 01 78 00- CLOSEOUT SUBMITTALS, provide a topographical survey of the site per requirements of SOW Section 2.6-SITE SURVEY. Include existing utility lines or structures (both modified and unmodified) encountered in the construction footprint that were not located on the original Site Survey.

2.3.1 DESIGN ANALYSIS

Submit a Design Analysis in accordance with RFP Section 01 33 16-DESIGN AFTER AWARD. Provide a Design Analysis for all Civil features that documents significant design choices and substantiates design compliance with contract requirements, applicable codes and standards. Documentation includes narrative, calculations, photographs, sketches, and catalog cut sheets. Reference all applicable regulations, standards, and criteria for the design. Reference sources are subject to Government approval. Provide design assumptions. For design choices, discuss alternative systems considered, and provide rationale for the selected alternative.

The Design Analysis includes but is not limited to:

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

b. Discussion of Demolition constraints and design decisions. Include discussion on how access will be provided during construction.

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

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

d. Discussion of Storm constraints and design decisions. Provide a hydrologic and hydraulic analysis of the storm system, including offsite areas that contribute to and influence the project’s storm system. In the absence of Host Nation or Installation requirements, use a minimum 10-year storm frequency for analysis and design. Use the Rational Method or TR-55 to determine peak discharge (Q) values. Provide calculations for each section of pipe using

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

e. Discussion of Water system constraints, design decisions and source. Provide calculations to demonstrate water system meets project requirements, including demand, water pipe sizing, design water pressure and flow rates at buildings.

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

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

Provide vehicular circulation patterns using AutoTURN or equivalent method.

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

g. Discussion of Fencing constraints and design decisions. Provide structural calculations for the fence foundations if the foundation is designed by the Designer of Record. Fence calculations are not necessary if the fence foundation design is from an industry standard detail.

h. Discussion of Landscaping constraints and design decisions.

i. Site Survey as an appendix.

j. Geotechnical Investigation and Report as an appendix.

2.3.2 DESIGN DRAWINGS

Provide Civil design drawings of sufficient detail to address the requirements of each design submittal. Civil drawings include plans, profiles, cross sections, and details of Civil features for the project. Civil drawings also include temporary construction plans/methods that affect the design and construction of the project.

These temporary plans include mobilization, traffic control, erosion control, dewatering, shoring, construction sequence, etc. Design drawings include all necessary information (labeling, dimensioning, legend, details, notes, etc.) to allow for complete understanding and constructability of all proposed features.

Provide comprehensible differentiation between features that are proposed, existing, future, or proposed to be demolished by use of appropriate choice of line styles, line weights, and/or colors. Reference USACE A/E/C Graphics Standard for graphic requirements.

2.3.3 SPECIFICATIONS

Provide Civil specifications of sufficient detail to address the requirements of each design submittal. Specifications, when combined with the design drawings, allow for complete understanding and constructability of all proposed Civil features. Specifications may be notes on the Civil design drawings as an alternative to a separate specifications document.

2.4 DESIGN CRITERIA

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

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

b. UFC 3-220-01, Geotechnical Engineering

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

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

e. UFC 3-240-01, Wastewater Collection

f. USACE Protective Design Center Standard Fence Drawings

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

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

2.5 GEOTECHNICAL INVESTIGATION AND REPORT

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

Coordinate testing locations with the KO to avoid impact to existing utilities and facility operations. Utility locates, permits, pavement removal and vegetation clearing is the Contractor’s responsibility. Repair disturbed areas flush with the adjacent surface. Following restoration, stake and flag each of the hole locations with boring identification numbers. In paved areas, use white paint on the paved surface to mark hole locations. Provide a map indicating the borehole and test pit locations.

2.5.1 REPORT

Include, as a minimum, the following information:

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

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

c. Site map of borehole and test pit locations.

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

e. Test pit logs with classification of all subsurface materials. The logs must distinguish fill materials from native materials, include all in‐situ test results, and include groundwater depth information, if groundwater is encountered. Distinguish between bedrock and rock boulders.

f. Reports of all the field and laboratory testing.

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

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

i. Calculations to support conclusions and recommendations.

2.5.2 DESIGN DRAWINGS AND SPECIFICATIONS

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

2.6 SITE SURVEY

Conduct and provide a topographic survey from a licensed surveyor that includes all existing site information needed to design and construct the project. Survey must be conducted prior to the first design submittal. Include x, y, and z coordinates to the nearest 0.005 meters, dimensions, material, and basic characteristics of all features within the project site limits, as well as all features outside of the project site limits that will affect the design and construction of the project. Research record drawings to obtain utility and pavement information that is not visible from the surface. Provide notes indicating the sources and any limitations or assumptions of the data. Provide a copy of the survey in CAD, in addition to the paper/electronic requirements of the Design Analysis. Locate and show on the topographic survey the following information:

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

b. Survey monuments and benchmarks. Include description.

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

d. Contours in intervals of 0.25 meters.

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

f. Pavements. Include pavement type, thicknesses, joint patterns, and pavement markings.

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

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

i. Signs. Include sign text.

j. Trees/Woods: In wooded areas that trees are to be protected, locate outside drip line of wooded area, include general density and type of trees. For wooded areas with proposed tree removal, identify trees per Host Nation permitting requirements. Where selective clearing will be proposed, locate trees over 150 millimeter diameter at chest height, and include tree species, diameter at chest height, and dripline diameter.

k. Geotechnical boring locations.

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

m. North arrow and scale of drawing.

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

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

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

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

2.7 SITE LAYOUT

Locate the proposed building and other improvements as indicated on the attached Conceptual Site Plan. Amend the site layout as determined by the site-specific constraints, the owner’s preferences, accessibility, future expansion, and opportunities that are identified and evaluated as part of the Contractor’s scope of work. Locate the proposed building outside the dripline of existing trees.

Locate the latrine a minimum of 30m from the proposed school.

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

2.8 DEMOLITION

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

2.8.1 CONSTRUCTION LIMITS

Do not disturb the project site beyond necessary for installation of proposed construction. Do not disturb any areas past the site’s property line. Show demolition work and limits of disturbance in the drawings. Stake-out the limits of disturbance on-site with temporary fencing before beginning construction.

2.8.2 ITEMS TO REMAIN IN PLACE WITHIN CONSTRUCTION LIMITS

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

2.8.3 TREES

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

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

2.8.4 UTILITY DEMOLITION

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

2.8.5 DUST, DEBRIS, AND EROSION CONTROL

Prevent the spread of dust, debris, and erosion from the project site. Install erosion control measures before beginning construction. Sweep pavements as often as necessary to control the spread of debris. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, erosion, or pollution. Remove snow, dust, dirt, and debris from work areas daily.

Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas. Apply local regulations regarding hauling and disposal.

2.8.6 ADDITIONAL REQUIREMENTS

Reference RFP Section 00 74 01-SPECIAL CONDITIONS and 01 30 01-GENERAL REQUIREMENTS for additional demolition, protection, and permitting requirements.

2.9 EARTHWORK

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

2.9.1 PLANS AND SPECIFICATIONS

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

2.9.2 CONTAMINATED SOIL

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

2.9.3 TOPSOIL

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

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

2.9.4 SATISFACTORY MATERIAL

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

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

2.9.5 BACKFILL COMPACTION

In the absence of Host Nation requirements and geotechnical recommendations, fill and backfill must be placed in layers of 20 centimeters loose thickness and compacted to a minimum 95% of the maximum dry density as determined by Host Nation test method equivalent to ASTM D-1557 (Modified Proctor test). Provide density tests on all lifts at a frequency of 1 test per 40 square meters for foundations and parking, and 1 test per 30 meters of road and utility trench. Round up to nearest whole number (i.e. a 25 square meter foundation requires one test). The location of all tests must be selected by the Contractor’s geotechnical engineer, and copies of all test results must be furnished to the KO. All structure foundation excavations must be inspected and approved by the Contractor’s Geotechnical Engineer prior to placing concrete. Repair earthwork areas as recommended by the Contractor’s Geotechnical Engineer, and approved by the KO.

2.9.6 ENGINEERED SOIL SUPPORT SYSTEMS

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

2.9.7 SITE GRADING

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

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

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

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

d. Set finished floor elevations a minimum of 15 centimeters above finished grade at the perimeter of the building, with the exception of finished grade at entry points.

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

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

2.10 UTILITIES

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

Proposed utility alignments must be at least 3.0 meters from facility or building foundations, except for building connections. Provide utility line depths, bedding, and backfill as required by applicable requirements and geotechnical recommendations. Minimum cover over pipes is 0.6 meters; greater than frost penetration; or sufficient to support imposed dead and live loads for the pipe materials used; whichever is more stringent. Place plastic warning tape along the route of the buried pipe after installation at a height of 0.3 meters above the pipe.

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

Provide corrosion protection for utilities that provides the minimum life expectancy specified in Section 1.0-GENERAL. Any piping or equipment exposed to sunlight must be coated with protective coatings suitable for UV exposure with a minimum expected coating life of 10 years before recoating.

2.10.1 STORM SYSTEM

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

Provide a storm drainage system to direct runoff away from improvements and eliminate ponding. Connect building roof gutters and downspouts to one rainwater tank (5000 liter) as shown on the attached Conceptual Site Plan and attached Rainwater Tank Example. Locate tanks out of pathways and windows. For rainwater tank, provide handwashing through connected lavatories at the bottom of tank s indicated on Att. #3, Architectural Drawings. Below the lavatories, provide a trench drain connected to runoff pipe that will drain water away from building foundations a minimum of 3 meters per site grading requirements. Provide an overflow system from the tanks to overflow gutter that drain away from foundations a minimum of 3 meters per site grading requirements. Provide insect screens to all open orifices to the tank system. Provide UV resistant tanks. Provide concrete foundation to support rainwater collection tank. Provide structural tie downs for the tank. Provide an opening for cleaning and allow access into the tanks. Provide system in order to divert first flush from the roofs that may be contaminated with dust, animal droppings and dirt so that it does enter the tank. Provide sign next to tap that shows a pictogram “not for drinking”. Sign must be firmly fastened aluminum or other durable weather resistive material (no adhesive sticker allowed).

2.10.2 SANITARY SYSTEM

Provide a new latrine building that follows the design shown on the attached Ventilated Improved Pit (VIP) Latrine Plan and TAG13 - The Design of Ventilated Improved Pit (VIP) Latrines.

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

See SOW Section 6.0 – MECHANICAL for indoor sanitary scope.

2.11 PAVEMENT

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

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

a. Aggregate access roads from the existing adjacent dirt road to the proposed gate. Design road per AASHTO-A Policy on Geometric Design of Highway and Streets. Provide a minimum 5-meter road width even if the analysis demonstrates a thinner width would suffice. Minimum thickness for aggregate surfaced roads is 200mm.

b. Aggregate access drive from the proposed gate to the proposed parking lot.

Provide a minimum 5-meter road width even if the analysis demonstrates a thinner width would suffice. Minimum thickness for aggregate surfaced roads is 200mm.

c. Aggregate parking lot for trucks, up to 3.

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

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

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

Minimum thickness of concrete is 150mm. Minimum thickness of granular base is 100mm. Provide thicker base if required to protect weak subgrade soils or to reduce frost penetration into the subgrade. Provide expansion joint between building and apron. Provide medium broom finish on PCC concrete. Reference SOW Section 4.0 - STRUCTURAL for other concrete requirements.

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

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

For PCC, reference SOW Section 4.0 - STRUCTURAL for concrete requirements. Perform subgrade tests for all pavements as described in Section 2.9 - EARTHWORK. The location of all tests must be selected by the Contractor’s Geotechnical Engineer, and copies of all test results must be furnished to the KO.

2.12 FENCE

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

Provide a lock for the gate with 2 keys for each lock. Provide electrical grounding every 30 meters of fence, fence corner, and at gate posts (2 per gate).

Provide fencing and gates per USACE Protective Design Center Standard Fence Drawings (FE5 Chain-Link Security Fence Details and FE5 Chain-Link Security Fence Gate…