B.08.02_SOW.pdf

US Army Corps of Engineers Europe District

APO AE 09049

az16

Statement of Work Project Number: UMBRELLA OHASIS #37612

Water Supply System Improvement Projects for Lachin IDP Communities OHASIS # Settlement 35360 Nuraddin 35361 Ardeshevi 35362 Finga 36283 Alkhasli Mahammadin Yataghi 36284 Sheylanli Bash Yataghi

Aghajabadi Region, Azerbaijan

Prepared by:

Design Section

Engineering Branch 17 April 2019

01 10 10 Statement of Work Aghajabadi Region Settlements, Azerbaijan

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SECTION 01 10 10

STATEMENT OF WORK

SECTION TABLE OF CONTENTS:

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL (Not applicable)

4 STRUCTURAL

5 ELECTRICAL

6 MECHANICAL

ATTACHMENTS

Attachment #1 Project Location Map Attachment #2 Conceptual Well Site Plan Attachment #3 Conceptual Water Distribution Plan Attachment #4 Conceptual Well Head Schematic Attachment #5 Structural Calculations Guideline Attachment #6 Well Site 20,000 L Water Tank As-Builts Attachment #7 Water Distribution Endpoint Terminal As-Built Example Attachment #8 Dedication Plaque

1.0 GENERAL

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) provides parameters for a design-build project for replacement of a water supply system servicing multiple Internally Displaced Persons (IDP) settlements within the Aghajabadi region of Azerbaijan. This project includes the design and construction of the following facilities, detailed requirements are contained elsewhere in this Statement of Work (SOW):

a. Well Site Improvements

i. New Artesian-fed water tank (5,000 L minimum capacity) and associated new influent piping, effluent piping, distribution hub, and shut-off valves.

ii. Demolition and removal of existing 3,000 L Artesian-fed water tank.

iii. New well head shut-off valves.

iv. Installation of a new photovoltaic array with battery system and associated concrete pad to power the pump for the recently constructed, pump-fed elevated water tank.

v. Removal of existing water supply booster pump and installation of new pump.

b. Finga IDP Settlement

i. 2.50 km of new piping and fittings.

ii. New water distribution endpoint terminal.

c. Nuraddin IDP Settlement

i. New tee in Ardushlu water supply line immediately west of the existing canal crossing and 1.58 km of new piping and fittings.

ii. New water distribution endpoint terminal.

iii. 0.94 km water distribution pipe extension from the tee location west of the existing canal crossing to the well site.

d. Ardashevi IDP Settlement

i. 150 m of primary distribution pipe.

ii. 3.15 km of new piping and fittings.

iii. New water distribution endpoint terminal.

e. Alkhasli IDP Settlement

i. 2.64 km of new piping and fittings.

ii. New water distribution endpoint terminal.

f. Sheylanli IDP Settlement

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i. 1.23 km of new piping and fittings.

ii. New water distribution endpoint terminal.

See Attachment #2 – Conceptual Well Site Plan, Attachment #3 – Conceptual Water Distribution Plan, and Attachment #4 – Conceptual Well Head Schematic.

1.2 GENERAL REQUIREMENTS

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

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

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

1.2.1 BASE BID ITEMS AND OPTIONAL BID ITEMS

This Statement of Work addresses the technical requirements necessary to complete all work associated with this project. For information and requirements regarding the allocation of pricing between elements of the work, refer to the Section 01 20 00 PRICE AND PAYMENT PERFORMANCE included as a separate document. This section identifies the breakdown between the individual base bid and optional items for all work identified in this Statement of Work, associated drawings, and attachments. All work as described in these documents is included in either the Base Bid or Optional Items: consider all items not specifically identified in the Optional Items as part of the Base Bid Items.

1.3 SUBMITTALS

Government approval is required for submittals with “G” designation; submittals not having a “G” are for Contractor Quality Control approval. When used, a designation following the “G” designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section

01 33 00 SUBMITTAL PROCEDURES:

SD-05 Design Data

65% Pre-Final Design; G, DO

95% Final Design; G, DO

100% Corrected Final Design; G, DO

1.3.1 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 1.3 SUBMITTALS. The specific requirements of each milestone are described in each discipline-specific section of this Specification.

Submit all documents in electronic format (.pdf for text and calculations, .pdf and .dwg (AutoCAD, latest version) for drawings). See Specification 01 33 00 SUBMITTAL PROCEDURES for additional information.

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1.4 MATERIALS AND EQUIPMENT

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

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

1.4.1 LIFE-SPAN

Construction must have an expected life span of 25 years.

1.4.2 MAINTAINABILITY

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

1.4.3 OPERABILITY

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

1.4.4 STANDARDIZATION

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

1.5 DESIGN DIMENSIONS

Develop the design using the metric system.

1.6 DESIGN CRITERIA

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

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

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

1.7 DESIGN CONFERENCES AND MEETINGS

The Contractor and the entire design team are required to participate in a design review conference for each design submittal. The Contractor may request a review conference, but the Government is under no obligation to conduct or participate in a review conference unless specifically identified in the contract documents. The Contractor must bring the personnel that developed the design submittal to any review conference.

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

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

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

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, site layout, demolition, earthwork, water distribution system, water distribution endpoint terminals, and concrete. Refer to the bid schedule for which of these are base bid or optional.

2.2 EXISTING CONDITIONS

The five settlements are located approximately 260 km east of Yerevan, Armenia and 200 km west of the capital of Baku in central Azerbaijan. Each of the five settlements are in the Aghajabadi region of Azerbaijan and are served by the same Artesian water well. The Mtkvari River, Azerbaijan’s principal waterway, is located within three kilometers of the site. The GPS coordinates of the well are 40°08'50.6"N 47°37'34.7"E. See Attachment #1 – Project Location Map. The distance from the well site to each IDP settlement ranges from approximately 1.2 km to 3.3 km.

The site is in a very remote location and is not easily accessible by car. An existing paved road bisects the communities and can be used to access the Alkhasli settlement. All remaining settlements are only accessible via poorly maintained dirt roads requiring speeds less than 10 km/hr to navigate. The dirt roads become muddy and more difficult to navigate in wet conditions.

2.2.1 TOPOGRAPHY

There is no known topographic survey for the project site. The area is flat and is estimated to have a difference in elevation of less than four (4) meters across all sites. Google Earth indicates site elevations between 2 m and 6 m below sea level.

The areas of proposed construction are almost entirely undeveloped with the exception of the existing well location and the IDP settlements. All proposed water service distribution lines are to be buried in open, grassed field with light-density shrubbery. Several man-made trenches have been constructed throughout the region to provide water for livestock.

2.2.2 UTILITIES

There are no known utilities, with the exception of the existing water distribution lines connecting the Artesian well site to each IDP settlement. There is no reliable power source at the site.

2.2.3 GEOTECHNICAL

There is no geotechnical information provided for the project site. No rock formations or outcroppings were visually identified at the site visit and are not expected to be encountered during construction.

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.

Environmental hazards are minimal, consisting of hot and cold seasonal weather. The nearby city of Barda experiences average high temperatures of 33.3° C in July and August and average low temperatures of 0.0° C in December and January. Annual precipitation is less than 200 mm.

While apparent environmental hazards are minimal, the entire region is reliant on the single Artesian water source at the well site. If the water source is compromised, 28-May-19 Page 7 of 35 contaminated, or if the aquifer becomes dry, the nearly 2,000 people reliant on the water source would face a humanitarian crisis. Great care should be taken to protect the water source quality and life-expectancy.

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, river stages, 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 SOW Section 1.0 – GENERAL. Below are the contents required for each submittal:

65% Design Submittal:

a. Pre-Final Design Analysis of civil features.

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

c. Final Existing Conditions Plan.

d. Pre-Final Demolition Plan.

e. Pre-Final Site Layout Plans – Indicate existing and proposed civil features.

Include other disciplines’ features (faded back) that affect the civil design (structures, electrical utilities, etc.).

f. Pre-Final Grading Plans, Profiles, Cross Sections, and Details. Include contours, concrete pad elevations, spot grades, and slopes in Grading Plan.

Include erosion control design.

g. Pre-Final Concrete Slab Plans, Cross Sections, and Details.

h. Pre-Final Utility (water distribution system) Plans, Profiles, Cross Sections, and Details. Include Water Distribution Endpoint Terminal Plans and Details.

i. Preliminary Civil Specifications.

95% Design Submittal:

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

Incorporate all previous 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.

2.3.1 DESIGN ANALYSIS

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

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

The Design Analysis includes but is not limited to:

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

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

c. Discussion of protective measures to be taken to prevent damage to the existing Artesian well.

d. 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 the proposed water tank or water distribution endpoint terminals. Include pertinent geotechnical information that affects earthwork.

e. Discussion of site drainage constraints and design decisions. Include discussion of water distribution endpoint terminal roof drainage and erosion protection.

f. Discussion of water distribution system constraints and design decisions.

Provide an evaluation study of the existing hydraulic profile of the Artesian well and distribution system, including, but not limited to, the well’s current deliverable head and the minimum allowable elevation of the proposed water tank required to meet the water demands of each IDP settlement. The evaluation study shall not only include the five settlements associated with this project, but all settlements relying on the well for their water supply. Provide calculations to demonstrate the proposed water tank dimensions and distribution system meets project requirements, including demand, water pipe sizing, design water pressure and flow rates at each settlement. Demonstrate that distribution piping servicing more than one IDP settlement (Ardushlu and Nuraddin; Alkhasli and Sheylanli) is adequate meet the needs of each settlement. Provide calculations on the pipe’s structural capacity if the pipe is shallower than required in section 2.10-Utilities. Provide well and water tank calculations.

g. Discussion of constraints and design decisions for water distribution piping canal crossings. Provide discussion for piping to be suspended across or buried beneath canals. Include discussion on supporting and protecting pipes that are suspended and/or exposed at canal crossings, as well as protection of the canal embankments for stability and erosion.

h. Discussion of constraints and design decisions for concrete pads for well site

UV system and water distribution endpoint terminals. Provide the design load specifications. Provide calculations for the concrete section. Include pertinent geotechnical information that affects the concrete design.

i. Discussion of water distribution endpoint terminal constraints and design decisions. Include discussion of shut-off valve material, sizing, and life-expectancy.

j. Site Survey 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. 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, or proposed to be demolished by use of appropriate choice of line styles, line weights, and/or colors. In the absence of the Host Nation’s drafting requirements, reference USACE A/E/C Graphics Standard for graphic requirements.

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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), SOW Section 1.0-GENERAL, 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. UFC 3-230-01, Water Storage, Distribution, and Transmission

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

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

2.5 GEOTECHNICAL INVESTIGATION AND REPORT

The Contractor is not required to perform a geotechnical investigation for this project. The Contractor may perform geotechnical investigations and/or collect existing geotechnical reports if desired to improve the design. In the absence of geotechnical information on allowable soil bearing pressure, an allowable soil bearing pressure is discussed in STRUCTURAL section 4.0. Provide geotechnical information and assumptions in the Design Analysis to support design decisions.

For Construction, perform field and laboratory geotechnical work required for earthwork (i.e. compaction tests, inspection of structure foundation excavations).

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

2.6 TOPOGRAPHIC SURVEY

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

Locate and show on the topographic survey the following information:

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

b. Survey monuments and benchmarks. Include description.

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

d. Contours in intervals of 0.10 meters.

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

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

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

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

pipe sizes and materials.

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

j. Signs. Include sign text.

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k. Trees: Locate trees over 150 millimeter diameter at chest height, and include tree species, diameter at chest height, and dripline diameter.

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.

In the absence of the Host Nation’s horizontal and vertical coordinate system, use the Universal Transverse Mercator (UTM) coordinate system, and base vertical coordinates on sea level.

2.7 SITE LAYOUT

Locate the proposed water tank, water distribution system, and water distribution endpoint terminals as indicated on Attachment #2 – Conceptual Well Site Plan and Attachment #3 – Conceptual Water Distribution Plan. Amend the site layout as determined by site-specific constraints, code requirements, the owner’s preferences, and future expansion.

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. Avoid tree removal, if possible. Provide straight, neat sawcuts at limits of pavement removal. Any contaminated soils discovered will require special testing and disposal per Host Nation requirements.

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

2.8.1 CONSTRUCTION LIMITS

Do not disturb any areas beyond what is required to complete the work. Show demolition work and limits of disturbance in the drawings. Provide temporary fencing around open trenching and active construction areas.

2.8.2 ITEMS TO REMAIN IN PLACE WITHIN CONSTRUCTION LIMITS

Take special care to avoid damage to the existing well. The well serves as the only water source to several communities in the region. The existing water distribution lines shall also be protected so they can remain in use until project completion.

Protect the existing filter at the well head.

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

2.8.3 TREE DEMOLITION

Protect trees larger than 150mm diameter at chest height within the project site which might be damaged during construction, with a 1.8 m high fence around the dripline of the tree(s), which is assumed to be the extent of the tree’s roots.

Mitigate for tree removal per Host Nation requirements. Tree cutting interrelated processes need to be coordinated with responsible persons and local authorities.

This includes, but is not limited to, compensation measures and endangered species

28-May-19 Page 11 of 35 studies. The Contractor is responsible for permitting, environmental studies, and coordination with local authorities related to tree and vegetation demolition.

2.8.4 UTILITY DEMOLITION

The existing water distribution system is the only known utility at the site.

Demolition and abandonment activities include the following:

a. Demolish and remove existing 3,000 L Artesian-fed water tank following project completion.

b. Abandon existing water distribution piping between the well site and IDP settlements in place.

c. Abandon existing water distribution endpoint terminals in place.

d. Remove existing water pump at the base of the elevated water tank (constructed in 2015).

Any unexpected 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 structure foundation. Reroute existing utilities to remain in accordance with SOW Section 2.10-UTILITIES. Manholes or underground structures to be abandoned must be removed to a minimum depth of 50 centimeters below finish grade. Fill abandoned manhole or structure per Section 2.9-EARTHWORK requirements.

2.8.5 DUST, DEBRIS, AND EROSION CONTROL

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

Apply Host Nation 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

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 and concrete), compaction for utility trenches, maximum lift depths, density testing frequency, maximum temporary and permanent slopes, and engineered support systems.

2.9.3 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 COR for further guidance.

2.9.4 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 COR for further guidance.

2.9.5 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.

Stockpiled topsoil shall be covered and protected for restoration. When restoring the site to finish grade, place topsoil back in excavated areas that do not include proposed paving or structures.

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2.9.6 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.

2.9.7 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. 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 COR. All structure foundation excavations must be inspected and approved by the Contractor’s Geotechnical Engineer prior to placing concrete. Repair earthwork areas as recommended by the Contractor’s Geotechnical Engineer, and approved by the COR.

2.9.8 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.

2.9.9 SITE GRADING

Provide site grading that directs storm water runoff away from existing and proposed water tank foundations, concrete slabs, and water distribution endpoint terminals either by drainage systems or by grading as follows:

a. Finished grades of earth/grass/gravel surfaces adjacent to foundations, concrete slabs, and water distribution endpoint terminals must slope away from all exterior edges with a minimum slope of 5% for the first 2 meters.

b. 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.

Backfilled water distribution pipeline trenches shall be finish graded to match the surrounding terrain and prevent stagnating water, ponding, and erosion.

2.10 UTILITIES

This section applies to storm water management and all water distribution system components. See Sections 4.0-STRUCTURAL, 5.0-ELECTRICAL, and 6.0-MECHNICAL for additional requirements.

In the absence of Host Nation requirements, design the water distribution lines per IBC and UFC 3-230-01, Water Storage and Distribution. Provide pipe materials per IBC requirements. Provide utility main alignments outside the structural zone of influence of existing and proposed structures. Provide pipeline 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

28-May-19 Page 13 of 35 coordination of any work to be performed by the utility owner. Choice of materials and products for utility installation must be coordinated with the utility owner (customer or third party) to ensure proper integration and compliance with existing systems and allow for easy maintenance and repair of the utilities in the future.

Provide corrosion protection for utilities that provides the minimum life expectancy specified in GENERAL Section 1.0. Any piping or equipment exposed to sunlight 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 WATER MANAGEMENT

Provide drainage ditches, swales, or other gravity-driven surface drainage features, as needed, to divert runoff away from and around existing or proposed water tanks, concrete slabs, and water distribution endpoint terminals. Design drainage features to eliminate ponding and to be protected against erosion. Manage water distribution endpoint terminal roof drainage such that erosion and damage to the concrete slab is prevented.

2.10.2 WATER DISTRIBUTION SYSTEM

Provide a new elevated Artesian-fed water tank, water distribution piping, fittings, valves, endpoint terminals, and other components to connect each settlement to the Artesian-fed water well.

After installation, test water distribution system according to Host Nation codes for leakage. Before the water distribution system is put into final operation, disinfect the system, and then flush the system to remove traces of the sterilization agent. Test treated line for coliform bacteria. Provide test results to the COR.

Locate and repair any sections failing to pass the required tests. Repeat the specified tests and inspections on the repaired sections.

The existing water distribution system shall remain operational until the new water distribution system is put into service. Coordination with the IDP settlements will be required during construction to ensure water supply is not interrupted.

2.10.2.1 EXISTING ELEVATED WATER TANK AND PUMP SYSTEM

Provide a photovoltaic (PV) array and battery system to provide constant power to the water supply pump used to fill the existing 20,000 L water tank constructed in 2015. Provide adequate influent piping to fill the tank and adequate effluent piping to accommodate the water demand of each community when the pump-fed water tank is in use. The PV array shall be mounted atop the existing water tank. Provide a 2 m x 3 m concrete slab to house the remaining components of the PV system.

See SOW Sections 4.0–STRUCTURAL, 5.0–ELECTRICAL, and 6.0-MECHANICAL for additional requirements.

2.10.2.2 NEW ELEVATED ARTESIAN-FED WATER TANK

Provide a new elevated Artesian-fed water tank. Design the tank to have the optimum influent pipe elevation and the minimum effluent elevation required to meet the needs of all communities reliant on the water source. The tank capacity shall be designed to meet the demands of all communities reliant on the water source but shall not be less than 5,000 L. Provide influent piping of sufficient size to fill the tank and effluent piping of sufficient size to meet outflow demands.

See SOW Sections 1.0-STRUCTURAL AND 6.0-MECHANICAL for additional requirements.

2.10.2.3 WELL HEAD AND DISTRIBUTION HUB

Provide shut-off valves at the well head to allow for switching between the pump-fed and Artesian-fed water tank systems.

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Provide a distribution hub and shut off valves downstream of the water tanks to allow for switching the distribution water source between the pump-fed and Artesian-fed water tank systems.

See Attachment #4 – Conceptual Well Head Schematic and Attachment #8 – Conceptual Well Site Plan. See SOW Section 6.0-MECHANICAL for additional requirements.

2.10.2.4 WATER DISTRIBUTION PIPING

Provide new water distribution piping for each IDP settlement. The water distribution pipe material shall be high density polyethylene (HDPE). See Section 1.1-PROJECT DESCRIPTION for a list of required pipe lengths to connect each IDP settlement to the well site.

2.10.2.4.1 NURADDIN WATER DISTRIBUTION PIPE EXTENSION

If funding is available, provide additional water distribution piping extending to the Nuraddin water distribution piping to the well site rather than tapping the existing water distribution piping servicing the Ardushlu IDP settlement. See Attachment #2 – Conceptual Well Site Plan, Attachment #3 – Conceptual Water Distribution Plan, and Attachment #4 – Conceptual Well Head Schematic.

2.10.2.5 WATER DISTRIBUTION ENDPOINT TERMINALS

Provide water distribution endpoint terminals at each IDP settlement. Each terminal shall have the following characteristics:

a. 4.4 m x 4.4 m concrete pad.

b. Standpipe distribution pipe in a masonry chase at the center of the concrete pad.

c. Two shut-off valves sized and specified to sustain industrial and agricultural applications.

d. 2 m x 2 m dyed or painted concrete trough (for livestock) surrounding all sides of the masonry chase to be no higher than 0.75 m above the finished concrete slab elevation. Provide a drain with plug or valve to control trough water retention.

e. Pitched roof with clearance suitable for human and livestock (cattle and sheep) traffic.

f. Permanent bolted grouted-in-place gift plaque on one face of the masonry chase.

See Attachment #8 – Dedication Plaque.

See Attachment #7 – Water Distribution Endpoint Terminal As-Built Example. See Sections 4.0-STRUCTURAL and 6.0-MECHANICAL for additional requirements.

2.11 PAVEMENT

2.11.1 CONCRETE

Provide Portland cement concrete (PCC) slabs for PV system, water distribution endpoint terminals, and other features that serve the project. Design concrete slabs to allow for heavy human and livestock (cattle and sheep) traffic. Provide medium broom finish on PCC concrete.

2.11.2 UTILITY TRENCH REPAIR

Replace existing pavement sections where the trenching occurs for utility installation. Sawcut a minimum 30 centimeters beyond edge of trench.

2.12 LANDSCAPING

Grade disturbed areas to match original or surrounding grades. Replace 20 centimeters of topsoil in areas topsoil was removed to perform the work. Finish grade disturbed areas to prevent ponding and erosion. No seeding, sod, or vegetation is required.

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3.0 ARCHITECTURAL

This scope does not include architectural work.

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4.0 STRUCTURAL

4.1 GENERAL

The Contractor must provide and perform structural engineering design and construction services as required to provide a complete, accessible, functional and usable project.

The primary structural effort of this project at six different location includes

i. Well-Site

a. The design and construction of a new elevated Artesian-fed water tank with reinforced concrete foundation, and structural steel platform and tank.

b. The design and construction of a new support platform and connections for a new solar panel system, at the top of the existing 20,000 L tank platform.

ii. Finga IDP Settlement

c. The design and construction of structural casing and support for canal crossings of the water distribution line across any channel or tranches between Finga IDP and the well site. Two canal crossing each measures approximately 4 m wide and 2 m deep.

d. The design and construction of a water distribution endpoint terminal with a

4.4 m x 4.4 m concrete pad, a monolithic concrete column with 1.6 m x 1.6 m flanges enclosing a water distribution pipe located at the center of the concrete pad, a 0.50 m height concrete or masonry water collection area surrounding the enclosed pipe, and a wood framed roof supported by the center concrete column.

e. The installation of a permanently anchored embedded gift plaque at the center concrete column in the water distribution endpoint terminal.

iii. Nuraddin IDP Settlement

f. The design and construction of structural casing and support for canal crossings of the water distribution line across any channel or tranches between Nuraddin IDP and the well site. Two narrow trenches each measure approximately 3m wide and 1m deep.

g. The design and construction of a water distribution endpoint terminal with a

4.4 m x 4.4 m concrete pad, a monolithic concrete column with 1.6m x 1.6m flanges enclosing a water distribution pipe located at the center of the concrete pad, a 0.50 m height concrete or masonry water collection area surrounding the enclosed pipe, and a wood framed roof supported by the center concrete column.

h. The installation of a permanently anchored embedded gift plaque at the center

iv. Ardashevi IDP Settlement

i. The design and construction of structural casing and support for canal crossings of the water distribution line across any channel or tranches between Ardashevi IDP and the well site. The canal crossing measures approximately 10m wide and 3m deep.

j. The design and construction of a water distribution endpoint terminal with a

4.4 m x 4.4 m concrete pad, a monolithic concrete column with 1.6 m x 1.6 m flanges enclosing a water distribution pipe located at the center of the concrete pad, a 0.50 m height concrete or masonry water collection area surrounding the enclosed pipe, and a wood framed roof supported by the center concrete column.

k. The installation of a permanently anchored embedded gift plaque at the center

v. Alkhasli IDP Settlement

l. The design and construction of structural casing and support for canal crossings of the water distribution line across any channel or tranches

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m. The design and construction of a water distribution endpoint terminal with a

4.4 m x 4.4 m concrete pad, a monolithic concrete column with 1.6 m x 1.6 m flanges enclosing a water distribution pipe located at the center of the concrete pad, a 0.50 m height concrete or masonry water collection area surrounding the enclosed pipe, and a wood framed roof supported by the center concrete column.

n. The installation of a permanently anchored embedded gift plaque at the center

vi. Sheylanli IDP Settlement

o. The design and construction of structural casing and support for canal crossings of the water distribution line across any channel or tranches between Ardashevi IDP and the well site. Two narrow trenches each measure approximately 3 m wide and 1m deep.

p. The design and construction of a water distribution endpoint terminal with a

4.4 m x 4.4 m concrete pad, a monolithic concrete column with 1.6 m x 1.6 m flanges enclosing a water distribution pipe located at the center of the concrete pad, a 0.50 m height concrete or masonry water collection area surrounding the enclosed pipe, and a wood framed roof supported by the center concrete column.

q. The installation of a permanently anchored embedded gift plaque at the center

vii. For all locations, other elements must include but are not limited to foundations, superstructure (i.e. walls, columns and beams), roof framing, lateral load stability and diaphragm design, framing and connection of any architectural features, channel crossings, trenches, support of pipes, valve and pipe encasing, mechanical and electrical equipment.

The contractor must have as part of his design team a licensed structural engineer per Host Nations standards. If work is being performed in a country that does not have licensed structural engineers, then engineering degrees along with extensive structural design experience can be submitted to the COR for qualification verification and approval. The structural engineer’s licensure or qualifications must be submitted to the COR in the design quality control plan prior to the start of design. The Contractor’s structural engineer must be responsible for the design of any part of the building structural systems.

The structural design of the foundation, superstructure and any other structural aspects must be in accordance with the design criteria listed in this document. The superstructure of the project building and the foundation must be constructed from locally available materials. The construction must provide a minimum service life of 25 years.

4.2 APPLICABLE DESIGN CRITERIA

All Design, Safety in Construction, Materials, and Performance of Construction Services must be in accordance with current local or national Host Nation codes and standards. In absence of Host Nation codes, use 2015 International Building Code and ASCE 7-10 for structural calculations. In case of conflicting requirements between the various elements, the more stringent criteria must govern.

Any material or construction installed by the Contractor as part of this contract that does not meet the requirements of this RFP or does not meet the applicable codes and standards must be removed and replaced at the Contractor’s expense. Reuse of any existing material due to the demolition of existing structure is not allowed.

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Structural design methods and allowable stresses or load factors for the various structural materials must be in accordance with paragraph 1.7 of this document.

4.3 SUBMITTALS

4.3.1 DESIGN SUBMITTALS

The contractor must provide the structural submittals after contract award in accordance with Section 01 33 00 SUBMITTAL PROCEDURES. In addition to General Section

1.3.1 DESIGN SUBMITTALS of this document the following documents must be submitted.

4.3.1.1 DRAWINGS & SPECIFICATIONS

The following structural detail drawings must be provided by the Contractor as required, but must conform to the requirements of this SOW and are subject to the approval of the Contracting Officer Representative (COR). Construction drawings must include:

65% Design Submittal

- Preliminary floor plans which provide information of the main structural system of the construction giving general information about dimensions of main elements such as columns, beams, bearing walls, etc. (min. scale 1:50)

- Preliminary foundation plans which include for all typical structures, showing dimensions, arrangements, locations referred to a column line grid system, type of foundation and foundation obstructions. Include the layout of all slabs, footings, piers, grade beams, piles, etc., showing all foundation features of the design. (min. scale 1:50)

- Formwork drawings of the load bearing structure including shoring and reshoring as required (min. scale 1:50)

- Preliminary roof framing plan which provide general information of the main structural elements (min. scale 1:50).

- Reinforcement drawings for primary framing members (min. scale 1:50)

- Details of connections for primary steel framing members (min. scale 1:10)

95% Design Submittal

- All items from the 65% Design Submittal requirements

- Complete reinforcement drawings (min. scale 1:50)

- All necessary sections and details of the load bearing structure (min. scale

1:20)

- Shop drawings of the steel structure (min. scale 1:50)

- Roof framing plan with member sizes and connection details.

- Details of all connections for the steel and wood structure (min. scale 1:10)

- Detailed specifications that are typically sent to sub-contractors.

100% Submittal

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

- The design criteria actually used for the structural design must be referenced in the structural notes on the drawings including but not limited to applicable codes, standards and specified material strengths.

- Letter of certification from proofing engineer.

As Built Drawing Submittal

- The As-built Submittal provides a complete and final set of record drawings documenting site conditions based on a survey of the final construction performed by the Contractor.

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CAD files of all construction drawings and as-built drawings must be submitted in .dwg (latest AutoCAD version) and in .pdf format.

The design documents actually used for the structural design must be referenced in the structural notes on the drawings.

4.3.1.2 STRUCTURAL CALCULATIONS & DESIGN ANALYSIS

The contractor must submit the structural calculations of all load bearing structural elements and their connections related to this RFP in a design analysis provided with each submittal. The design analysis must state and list the basis of design for all project aspects and features. The design analysis and calculations must be in accordance with the enclosed NAU Engineering Guideline 01/2016 Preparation of Structural Calculations, see Attachment #5 – Structural Calculations Guideline. The current local or national Host Nation codes and standards on which the structural calculation are based must be referenced in the calculations. If applicable, an electronic copy of the applicable local or national Host Nation codes must be provided.