B.08.02.07 MPMG SOW Section 011010.pdf

US Army Corps of Engineers Europe District

APO AE 09049

Co16a

Statement of Work Project Number:

FY21-495022

Construct Multipurpose Machinegun Range Slunj, Croatia

Prepared by:

Design Section

Engineering Branch 21 April 2021

01 10 10 Statement of Work Construct Multi-purpose Machinegun Range

Slunj, Croatia

21-Apr-21 Page 2 of 19

SECTION 01 10 10

STATEMENT OF WORK

SECTION TABLE OF CONTENTS:

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL (Not applicable)

4 STRUCTURAL

ATTACHMENTS

Attachment # 1 Location Map Attachment # 2 Conceptual Site Plan Attachment # 3 Structural Calculations Guideline Attachment # 4 MPMG Description Attachment # 5 Firing Position Attachment # 6 Stationary Infantry Target (SIT) Attachment # 7 Stationary Armor Target (SAT) Attachment # 8 Moving Armor Target (MAT) Attachment # 9 MPMG Narrative Description Mar2017 Attachment # 10 ARN7527 TC 25-8 FINAL Compressed

1.0 GENERAL

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) provides parameters for a design-build project for construction of a Multipurpose Machine Gun Range in Slunj, Croatia; Latitude 45°09’23”N, Longitude 15°27’58”W (Refer to the attached Location Map.)

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

a. Tree cutting, clearing, grubbing, and grading the site

b. Construct new ground firing positions and target emplacements

a. 3 Firing Positions

b. 36 Above Grade Stationary Infantry Target Emplacements

c. 21 Stationary Armor Target Emplacements

d. OPTION: 350m Moving Armor Target Track (MAT), located 1500m out from the firing line.

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

21-Apr-21 Page 3 of 19

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 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

1.3.1 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.

1.3.2 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.

1.4 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 KO.

1.4.1 LIFE-SPAN

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

21-Apr-21 Page 4 of 19

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 US building codes noted below and following codes / criteria (Refer to RFP Section 01 30 01-GENERAL REQUIREMENTS, paragraph REFERENCED STANDARDS for the applicable version and date):

a. USACE Range Design Guide:

https://www.hnc.usace.army.mil/Missions/Installation-Support-and-Programs- Management/Range-and-Training-Land-Program/Range-Design-Guide/

b. Host Nation codes

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.

1.7 SPECIAL CONSTRUCTION REQUIREMENTS

1.7.1 DEMOLITION

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

1.7.1.1 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.

1.7.1.2 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.

END OF SECTION

https://www.hnc.usace.army.mil/Missions/Installation-Support-and-Programs-Management/Range-and-Training-Land-Program/Range-Design-Guide/ https://www.hnc.usace.army.mil/Missions/Installation-Support-and-Programs-Management/Range-and-Training-Land-Program/Range-Design-Guide/

21-Apr-21 Page 5 of 19

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, storm system, outdoor furnishings, and landscaping.

Refer to the bid schedule for which of these are base bid or optional.

2.2 EXISTING CONDITIONS

2.2.1 TOPOGRAPHY

Existing LiDAR topographic data is available for the project site. The existing site contains pavement, target emplacements, moving target tracks, along with a river and vegetation as shown on the attached Conceptual Site Plan. The site is undulating with many small hills and valleys throughout. The existing information shown on Attachment #2 - Conceptual Site Plan was compiled from site visits, Google Earth, and site photos.

2.2.2 UTILITIES

There are no known existing utilities at the site.

2.2.3 GEOTECHNICAL

There is no geotechnical information available for the project site.

2.2.4 ENVIRONMENTAL

It is unknown if environmental protection areas or archeological preservation areas exist on the project site. The Contractor must determine and follow all applicable Host Nation Environmental requirements. All HN required assessments and surveys shall be conducted prior to first design submittal and all HN required Environmental reports shall be provided in accordance with SOW Section 2.3 DESIGN

SUBMITTALS.

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

2.2.5 UNEXPLODED ORDNANCE (UXO)

There is no prior knowledge of UXO in the site’s soil. Ensure area is properly swept of potential UXO prior to conducting earth work.

2.2.6 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 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).

21-Apr-21 Page 6 of 19

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.

g. Pre-Final Grading Plans, Profiles, Cross Sections, and Details. Include contours, spot grades, slopes, finish floor elevations, and retaining walls in Grading Plan. Include retaining wall profiles, cross sections, and details.

Include erosion control design.

h. Pre-Final Target Emplacement and Firing Position Plans, Sections, and Details.

i. Pre-Final Moving Armor Target Track Plans, Sections, and Details.

j. Pre-Final Line of Sight (LOS) Plans and Profiles.

k. Pre-Final Storm Drainage Plans, Sections, and Details.

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

m. 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 utility lengths, minimizing earthwork and tree removal, and future expansion.

b. Discussion of Demolition constraints and design decisions.

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

Provide cut and fill calculations. Provide retaining wall 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 system constraints and design decisions.

e. Discussion of aggregate pavement constraints and design decisions. Provide the design vehicle(s) specifications. Demonstrate the turning path of the largest

21-Apr-21 Page 7 of 19 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. Provide design traffic calculations and assumptions. Include pertinent geotechnical information that affects the pavement design.

f. Discussion of Target Emplacement and Firing position design constraints.

Provide Target Protection Design Curves indicating how target berm design thicknesses are determined.

g. Discussion of Line of Sight (LOS) constraints and design decisions.

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. 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.

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. USACE Range Design Guide:

https://www.hnc.usace.army.mil/Missions/Installation-Support-and-Programs- Management/Range-and-Training-Land-Program/Range-Design-Guide/

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

c. UFC 3-220-01, Geotechnical Engineering

d. UFC 3-250-01, Pavement Design for Roads and Parking Areas

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

f. TC 25-8 Training Ranges

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 proposed target emplacements, retaining walls, foundations, grading, and road 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 https://www.hnc.usace.army.mil/Missions/Installation-Support-and-Programs-Management/Range-and-Training-Land-Program/Range-Design-Guide/ https://www.hnc.usace.army.mil/Missions/Installation-Support-and-Programs-Management/Range-and-Training-Land-Program/Range-Design-Guide/

21-Apr-21 Page 8 of 19 clearing is the Contractor’s responsibility. Repair disturbed areas with a concrete patch in paved areas, and compacted soil in non-paved areas. The repaired area must be flush with the adjacent surface. Following restoration, stake and flag each of the hole locations with boring identification numbers. 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. Soil Resistivity.

j. Frost Depth.

k. Deep foundation information.

l. Recommendations for aggregate pavement design and construction.

m. Recommendations for the storm systems involving infiltration.

n. 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. Include description.

21-Apr-21 Page 9 of 19

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

d. Contours in intervals of 0.25 meters.

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

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

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

h. River Shoreline. Note water elevation. Indicate normal high/low water elevations referenced to the datum used.

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

pipe sizes and materials.

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

k. Signs. Include sign text.

l. Existing moving target tracks.

m. Trees/Woods: 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.

n. Geotechnical boring locations (if applicable).

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

p. North arrow and scale of drawing.

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

r. 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.

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

Reference UFC 3-201-01, Civil Engineering, Section 2-2.2-SURVEYING for survey requirements. Use the Universal Transverse Mercator (UTM) coordinate system or the Military Grid Reference System (MGRS). Use the local vertical coordinate system.

2.7 SITE LAYOUT

Locate the proposed range elements 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.

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

2.8 DEMOLITION

Remove trees/vegetation and perform earthwork required 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

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

21-Apr-21 Page 10 of 19

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.

Protect existing concrete pavement, Moving Armor Target (MAT) Tracks, and Sheds.

Damage must be repaired at the Contractor’s expense to the satisfaction of the KO.

2.8.3 TREES

To the greatest extent possible, avoid unnecessary damage to trees that do not require removal. Trees are defined as larger than 150mm diameter at 1.3 meters above existing grade. Mitigate for tree removal per Host Nation requirements.

Contractor must determine if HN tree cutting season exists prior to any tree removal. Contractor is responsible for scheduling and coordinating any necessary tree cutting waivers or permits with the KO.

2.8.4 UTILITIES

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

2.8.5 DUST, DEBRIS, AND EROSION CONTROL

Prevent the spread of dust, debris, and erosion from the project site. Install erosion control measures before beginning construction. 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 00-GENERAL REQUIREMENTS for additional demolition, protection, and permitting requirements.

2.9 EARTHWORK

Perform all earth work necessary for the installation of the proposed improvements. Borrow material and is available on-site for fill requirements.

2.9.9 350 m MAT (Moving Armor Target)

2.9.9.1 RETAINING WALL

21-Apr-21 Page 11 of 19

In the absence of Host Nation standards or Installation guidelines, provide the retaining wall per UFC 3-220-01, Geotechnical Engineering and STRUCTURAL Section 4.0 requirements

2.9.9.2 BERM

Provide earthen berm to protect the retaining wall per TC 25-8 and Installation guidelines, and as determined by the line of sight analysis. Berm must be able to withstand (120mm tank rounds), has proper drainage, and the top of the berm has a relatively flat angle from the shooter to the target, generally +/- 2 degrees.

2.9.3 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.

2.9.4 UNEXPLODED ORDNANCE (UXO) CLEARANCE

UXO survey is not required. The Contractor must perform construction according to Host Nation and Installation UXO requirements.

2.9.5 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.

2.9.6 CULTURAL RESOURCES

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

2.9.7 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.

2.9.8 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.

2.9.9 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, 21-Apr-21 Page 12 of 19 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.

2.9.10 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.

2.9.11 SITE GRADING

Provide site grading that directs storm water runoff away from target emplacements and other proposed features by grading as follows:

a. Finished grades of earth/grass/gravel surfaces adjacent to target emplacements and other proposed features 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.

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

2.10 UTILITIES

No utilities are required as part of this project.

2.10.1 STORM SYSTEM RANGE

Provide a gravity storm drainage system to direct runoff away from improvements, eliminate ponding, and prevent erosion. Storm drainage shall be accomplished using grading and surface drainage.

2.10.2 STORM SYSTEM MAT

The 350m MAT drainage system is to consist of a drainage ditch which runs along the aggregate service road and directs storm water away.

2.11 TARGET EMPLACEMENTS AND FIRING POSITIONS

Provide target emplacements and firing positions as shown in Attachment #2 – Conceptual Site Plan.

a. Provide 3 new Ground Firing Positions.

b. Provide 36 new Above Grade Stationary Infantry Target (SIT) Emplacements.

c. Provide 21 new Stationary Armor Target (SAT) Emplacements.

a. OPTION: Provide new 350m Moving Armor Target (MAT) Emplacement and Service road

Electrical infrastructure, utilities, track, and targets are not included in this project scope. Design guidance is provided in the Attachments to the SOW.

2.12.1 LINE OF SIGHT RANGE

Ensure Line of Sight (LOS) from each firing point (FP) to every target within each firing lane. Additionally ensure the line of sight to every target is viewable and acceptable from multiple firing positions (prone, kneeling, standing). Provide documentation (profiles) that indicates LOS is available from each lane's firing point to every target emplacement in that firing lane. Provide LOS profiles from each FP to the Range Limit Markers (RLMs) and the lane markers of each of the FP’s lanes.

2.12.2 LINE OF SIGHT Moving Armor Target (MAT)

21-Apr-21 Page 13 of 19

For the 350m MAT, provide site access via an aggregate service road/track bed to allow operational and maintenance access to the facility. Provide geometric layout of the aggregate surfaced areas to allow for service vehicles to access the site features and exit the site safely. Average daily traffic (ADT) is below 250 vehicles/day. Design vehicles for the project have the following characteristics:

Pavements for the project include:

a. Aggregate Service Road/Track bed for trolley rails and service vehicles extending the length of the 350M MAT to be a minimum 8 meter width. MAT emplacement must be sloped in the direction of target travel.

b. Limit slopes to 3% where possible with a maximum of 5%.

c. MAT Emplacements may be sloped along the direction of the target. Design road per USACE Range Design Guide AND User requirements.

2.13 AGGREGATE PAVEMENT

Provide 3 meter (10 foot) aggregate service road as part of the Moving Armor Target (MAT) Emplacement and Service road at 350 meters, according to the attached MAT design guidance.

Provide aggregate pavement to support a vehicle with the following characteristics:

Design Weights (kg) Gross Vehicle Mass (GVM) 14,000 Gross Combination Mass (GCM) 17,500 Front Axle 5,100 Rear Axle 9,500

Kerb Weights (kg) Front Axle 3,060 Rear Axle 1,530 Total 4,590 Payload at GVM 9,410

2.14 LANDSCAPING

Provide grass seed and 20 centimeters of topsoil on the site in areas that do not have pavement or a building within the limits of disturbance. Seeds must be locally sourced from a certified plant nursery, and native to the area. Provide seed coverage density per manufacturer/supplier’s recommendations. Provide watering, weeding, and any other necessary care to establish growth. Limit planting to times of the year per local codes and/or manufacturer/supplier’s recommendations. Replace topsoil and seeds, at Contractor’s expense, in areas which do not have new growth coverage of 75% before the warranty period ends.

21-Apr-21 Page 14 of 19

3.0 Architectural

Not Applicable

21-Apr-21 Page 15 of 19

4.0 STRUCTURAL

4.1 GENERAL

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

The primary structural effort of this project includes

a. The design and construction of a new reinforced concrete target emplacements

b. The design and construct a Moving Armor Target Track at 350 meters long, concrete block wall and an additional 6.5 Meters of wall for trolley shelter and 3:1 sloped tie in walls at each end. Include treated timber behind the block wall. Approximate height of wall is 1.83 Meters.

c. Design and construction of a reinforced concrete trolley house with dimensions L(D):6.5m W:6.5m H:2m. Trolley and track are not part of this contract.

d. Design and construct a target track base 2m wide, 1506.5m long (includes the foundation of the trolley shelter, withstanding the weight of an MTV 8.5 tons).

e. Other elements must include but are not limited to foundations and slope stability.

f.

21-Apr-21 Page 16 of 19

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 2018 International Building Code and ASCE 7-16 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.

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 and the following codes/criteria:

UFC 3-301-01 Structural Engineering MPMG Narrative description

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 1.7.1 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 (KO). Construction drawings must include:

65% Design Submittal

- Preliminary concrete block wall plans (min. scale 1:50)

- Formwork drawings of the concrete wall and trolley shelter (min. scale 1:50)

- Reinforcement drawings (min. scale 1:50)

- Details of connections (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 (min. scale 1:20)

- Details of all connections (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.

As Built Drawing Submittal

21-Apr-21 Page 17 of 19

- 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.

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. 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. Structural calculations must be sequentially numbered for ease of referencing for all submittal stages.

4.4 STRUCTURAL DESIGN CRITERIA

Structural design methods and allowable stresses or load factors for the various structural materials must be in accordance with the Applicable Design Criteria paragraph 4.2. Requirements in the codes, specifications and industry standards are requirements of this document, unless specified otherwise. The references used for the project design and contract documents must be included in the design analysis required for this project.

4.4.1 MINIMUM STRUCTURAL DESIGN LOADS

The design loads must be determined in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2. For minimum value for design without an official geotechnical report us the IBC presumptive values table “Table 1806.2”. The design load criteria specified herein are minimums; the Contractor is responsible for verifying the actual design loads for this site. A reference geotechnical report is included as an attachment. If actual design loads are different than that listed herein, the Contractor must notify the KO. Any cost and/or schedule impact due to the Contractor’s failure to notify the KO of these requirements specified herein four weeks before the submittal is due must be to the Contractor’s account. Design loads must be included in the structural notes on the drawings. The minimum design load criteria for this project as follows:

4.4.1.1 DEAD LOADS

The unit weight of concrete wall. Other dead loads that should be considered are superimposed backfill and the weights of any equipment or other structures supported by the wall. External Water Pressure and surcharge loads from construction equipment.

4.4.1.2 FLOTATION

All loads and load case combinations must be in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2. Load factors for designs must be based on the applicable material design standard.

4.4.1.2 LIVE LOADS

4.4.1.2.1 LIVE LOADS

21-Apr-21 Page 18 of 19

Live loads must be in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2 for the anticipated usage. Live loads from vehicles, refer to civil section for vehicular surcharge loads.

4.4.1.2.2 HORIZONTAL LOADS

The retaining wall must be designed to and applicable combinations of the following horizontal loads; lateral earth pressure, hydro-static pressure, wind, dynamic earth pressure, and vehicular and or construction surcharge.

In no case shall the retaining wall be designed lower than at-rest lateral earth pressure. Additionally the passive earth pressure to resist the design loads must be greater than 50% of the value.

Wind Load. Wind loads should be considered for retaining walls during construction, prior to placing backfill.

4.4.1.2.3 DYNAMIC EARTH PRESSURE

Retaining walls which are able to yield laterally during an earthquake, the dynamic effects on the retaining wall must be considered. Earth pressures induced by earthquakes can be approximated by the Mononobe-Okabe pseudo-static approach.

In addition, the inertial forces of the wall, plus that portion of the adjacent earth and/or water which is assumed to act with the wall, should be included. The seismic acceleration for Croatia is 26g.

4.4.1.2.4 FACTOR OF SAFETY

The global stability of the retaining wall must check for overturning, bearing, floatation, and sliding. At a minimum the design must comply with the following safety factors:

For Static Loading cases:

Overturning Safety Factor = 1.5 Sliding Safety Factor = 1.5

For Dynamic Loading cases:

Overturning Safety Factor = 1.1 Sliding Safety Factor = 1.1

4.5 MATERIALS

The use of the recommended materials and/or alternative materials must be in conformance with the publications listed in the Applicable Design Criteria paragraph 4.2. Any exceptions must be noted. Alternative materials may be submitted to the KO for approval if the Contractor determines the materials are more economically viable for this geographic region. Any material or construction that does not meet the requirements of this SOW or does not meet the applicable codes and standards must be removed and replaced at the Contractor’s expense.

Refer to the civil section for retaining wall fill material.

4.5.1 REINFORCED CONCRETE FOR MOVING ARMOR TARGET WALL

All concrete must be at least equivalent C 25/30 and reinforcing steel must be equivalent Grade B500A conforming to the applicable Eurocode standard.

4.5.2 REINFORCED CONCRETE TARGET EMPLACEMENTS

All concrete must be at least equivalent C 30/37 and reinforcing steel must be equivalent Grade B500B conforming to the applicable Eurocode standard. Ductility class must be in accordance with local codes and standards.

4.5.1.1 CONCRETE MIXTURE PROPORTIONS

Concrete mixture proportions must be the responsibility of the Contractor.

Mixture proportions must include the dry weights of cementitious material(s); the nominal maximum size of the coarse aggregate; the specific gravities, absorptions, and saturated surface-dry weights of fine and coarse aggregates; the quantities, types, and names of admixtures; and quantity of water per cubic meter concrete.

21-Apr-21 Page 19 of 19

All materials included in the mixture proportions must be of the same type and from the same source as will be used on the project.

4.5.2 FORMS

Materials for forms must be plywood, metal, metal-framed, reinforced fiberglass, or plywood-faced to provide continuous, straight, smooth, exposed surfaces.

4.5.3 Expansion joints

Expansion joints will need to be constructed in the cast-in-place concrete slab at 3 meter on center spacing.

4.6 STRUCTURAL SYSTEMS

4.6.1 ALLOWABLE SOIL BEARING PRESSURE MAT WALL

The allowable soil bearing pressure used for design must be based on a geotechnical investigation. Reference the Civil Design section of this document for geotechnical investigation requirements. In the absence of a soils investigation, foundations for single story structures may be designed using allowable bearing pressures of 1500 psf (72 kN/m2) provided that no unsuitable soils, such as such as muck or expansive clays, are discovered during excavation of the foundations. If unsuitable soils are discovered, the structural engineer must be notified to direct corrective measures as required. Slopes must be designed to drain water and protect earthen berm.

4.6.2 BASE-ON-GROUND TARGETS

Base-on-ground must be a minimum of 30 cm thick. Base-on-ground must be reinforced with either bar or mat reinforcing having a minimum area of reinforcing of 0.2% of the slab cross sectional area and located 4 cm clear from the top surface of the slab. Fiber mesh reinforcing in the slab concrete will not be allowed.

4.6.3 MINIMUM EXCAVATION AND GRADING REQUIREMENTS

Minimum excavation and grading requirements must be in conformance with the requirements in the Applicable Design Criteria paragraph 4.2.

4.6.4 STRUCTURAL SYSTEM – TROLLY HOUSE

The structural system must provide vertical and lateral load carrying capacity and must provide durability, maintainability, and cost effectiveness. The structural designer must ensure that all components are properly anchored/braced and that these elements are adequately connected as required by the design criteria.

Structural backfill will must be used behind the new concrete block wall.

4.7 TESTS AND INSPECTIONS

Construction inspections and material testing must be in accordance with local building codes. If no local codes are available regarding testing and inspection, follow guidance in UFC 1-200-01.