410133_OMD_MPMG_65pct_DesignAnalysis_2024-06-21.pdf

STATE OF OREGON | OREGON MILITARY DEPARTMENT

Multi-Purpose Machine Gun (MPMG) Range at NWSTF Boardman, Oregon

Design Analysis Intermediate (65%) Design Submittal

CONTRACT NO: 410133A001 | PROJECT NO: PN 92139, P2 41033

21 JUNE 2024

Benham Design, LLC

65% Intermediate Design Analysis Multi-Purpose Machine Gun Range Table of Contents Oregon Military Department (OMD) Boardman, Oregon

Benham Design, LLC i Project No. 1400386

65% INTERMEDIATE DESIGN ANALYSIS

for

MULTI-PURPOSE MACHINE GUN RANGE

Oregon Military Department (OMD)

NWSTF Boardman, Oregon

TABLE OF CONTENTS

ITEM PAGE

PROPOSED FACILITY

1. Project Title and Purpose

2. Project Need

3. Scope of Project

4. Project Authorization

5. Description of Buildings, Firing Lanes and Fighting Positions

5.1 Classroom Building

5.2 Range Control Tower

5.3 Bleacher Enclosure

5.4 Ammunition Breakdown Building

5.5 Operations and Storage Building

5.6 Covered Mess

5.7 Latrine

5.8 MPMG Lanes 1 – 3 and 8 – 10

5.9 MPMG Lanes 4 – 7

5.10 Fighting Positions

6. Discussion of Structural Systems

6.1 Foundation System

6.2 Floor Framing System

6.3 Roof Framing System

6.4 Walls and Partitions

7. Drawings of Proposed Facilities

PROPOSED SITE

1. Proposed Project Site

2. Surface Danger Zone (SDZ) Analysis

3. Site Grading

4. Site Cut and Fill

5. Site Grades

6. Roadways

7. Parking Areas

8. Pavements

9. Storm Drainage

10. Utilities

11. Landscaping

12. Environmental Issues

13. Architectural Treatment of Building Exteriors

Boardman, Oregon

Benham Design, LLC ii Project No. 1400386

65% INTERMEDIATE DESIGN ANALYSIS

for

MULTI-PURPOSE MACHINE GUN RANGE

Oregon Military Department (OMD)

Boardman, Oregon

TABLE OF CONTENTS

ITEM PAGE

DESIGN CRITERIA

1. General

2. Guide Specifications

3. Anti-Terrorism / Force Protection

4. Civil

5. Architectural

6. Structural

6.1 Technical Requirements

6.2 Design Loads

6.3 Design Stresses

6.4 Load Combinations

6.5 Deflections

6.6 Wind and Seismic Provisions

6.7 Economic Justification

7. Electrical

8. Mechanical

8.1 Technical Requirements

8.2 Criteria

8.3 Design

8.4 Calculations

9. Sustainability and LEED

9.1 Technical Requirements

9.2 General

10. Fire Protection

CFMO DOCUMENTATION

1. Meeting Minutes

2. Design Review Attendance

3. Surface Danger Zone (SDZ)

APPENDICES

Appendix 1 – DD 1390/1391 Forms Appendix 2 – Surface Danger Zone (SDZ) Analysis Appendix 3 – Construction Cost Estimate Appendix 4 – Geotechnical Investigation Appendix 5 – Meeting Minutes and Attendance Appendix 6 – Line of Sight Analysis Appendix 7 – Civil Calculations Appendix 8 – Electrical Calculations Appendix 9 – Structural Calculations

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APPENDICES CONTINUED

Appendix 10 – Mechanical Calculations Appendix 11 – Comments and Responses Appendix 12 – Range Design Checklists

Oregon Military Department (OMD)

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5. Description of Buildings, Firing Lanes and Fighting Positions

5.1 Classroom Building

General Description: The primary purpose of this building is to provide a location to conduct pre-training briefs and post training assessments and reviews of the exercise.

Functional Requirements:

The size of the building footprint is 800 square feet.

The building occupancy will be designed for 40 personnel and an instructor.

The floor is cast-in-place concrete with turned-down edges and spread footings.

The exterior walls are load bearing reinforced split-faced concrete masonry units

(CMU) with smooth-faced concrete masonry unit (CMU) accents.

The roof is a gabled pre-finished standing seam metal roof (SSMR) system on trusses with batt insulation. Gutters and downspouts will be provided to collect and direct the water away from the building.

The personnel doors and frames are insulated hollow metal. Vision panels in the doors will be polycarbonate glazing.

The windows are operable insulated windows to provide natural light and ventilation.

Operable windows will be provided with screens.

Interior finishes will be a sealed concrete floor, painted concrete masonry unit (CMU) and gypsum board walls, and painted gypsum board ceiling.

5.2 Range Control Tower

General Description: The Range Control Tower houses the Range Control Station (RCS), Data Termination Rack (DTR), instrumentation equipment, Power Panel (PP), Heating/Ventilation/Air Conditioning (HVAC), and also accommodates range personnel.

This structure provides office space for personnel conducting training exercises and space for the installation of the required electronics and communications equipment.

Functional Requirements:

The size of the building footprint of the Control Room is 248 square feet.

The occupancy for the Control Room will be designed for 3 personnel.

The buildings structural steel framing will be supported by concrete footings.

the exterior walls for the Control Room are insulated pre-finished metal wall panels.

The roof is a gabled pre-finished insulated standing seam metal Roof (SSMR) system on structural steel framing.

The personnel doors and frames are insulated hollow metal. Vision panels in the doors will be polycarbonate glazing.

The windows are a mix of operable and fixed insulated windows for observation, and to provide natural light and ventilation. Operable windows will be provided with screens.

Interior finishes will be a sealed concrete floor and pre-finished insulated metal panels for the walls and ceiling.

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5.3 Bleacher Enclosure

General Description: The enclosure is to provide an area for protection from the weather for personnel along with staging, instruction, and observation of training.

Functional Requirements:

The size of the building footprint is 600 square feet.

The building occupancy will be designed for 160 personnel.

The floor is cast-in-place concrete with turned-down edges and spread footings.

The exterior walls are a pre-finished metal wall panel on girts of a structural steel braced frame. The metal wall panels shall be installed on three sides of the enclosure.

The roof is a mono-slope pre-finished standing seam metal roof (SSMR) system on purlins of a structural steel braced frame. Gutters and downspouts will be provided to collect and direct the water away from the building.

An access door will be provided to the area beneath the bleachers for maintenance and cleaning.

Louvers will be installed in the back wall of the enclosure to provide ventilation.

Two sets of 10-row bleachers, that are 15 feet wide, shall be used to seat the personnel.

Interior finishes will be a sealed concrete floor and painted structure.

5.4 Ammunition Breakdown Building

General Description: The building is to provide an ammunition issue point for personnel using the range and to also breakdown containerized small arms ammunition and load magazines for issue. A covered area is provided at the issuing door to protect personnel during periods of inclement weather.

Functional Requirements:

The size of the building footprints enclosed area is 120 square feet.

The size of the covered area, at half square footage, is 60 square feet.

The building occupancy will be designed for 2 personnel.

The floor is cast-in-place concrete with turned-down edges and spread footings.

The exterior walls are load bearing reinforced split-faced concrete masonry units

(CMU) with smooth-faced concrete masonry unit (CMU) accents.

The roof is a gabled pre-finished standing seam metal roof (SSMR) system on trusses with batt insulation. Gutters and downspouts will be provided to collect and direct the water away from the building.

The personnel doors and frames are insulated hollow metal. Stainless steel coiling counter doors will be used for the issue windows.

Interior finishes will be a sealed concrete floor, painted concrete masonry unit (CMU) walls, and painted gypsum board ceiling.

A 50 ft intra-line distance stand-off distance is required to other ROCA structures.

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5.5 Operations and Storage Building

General Description: The building is to provide an office space for range personnel and storage for the range.

The size of the building footprint is 800 square feet.

Office Area has been eliminated and replaced with an additional 400 square foot

Storage Area separated with an interior partition.

The building occupancy will be designed for 4 personnel.

The floor is cast-in-place concrete with turned-down edges and spread footings.

The exterior walls are load bearing reinforced split-faced concrete masonry units

(CMU) with smooth-faced concrete masonry unit (CMU) accents.

The roof is a gabled pre-finished standing seam metal roof (SSMR) system on trusses with batt insulation. Gutters and downspouts will be provided to collect and direct the water away from the building.

The personnel doors and frames are insulated hollow metal. Vision panels in the doors will be polycarbonate glazing.

The windows are operable insulated windows to provide natural light and ventilation.

Operable windows will be provided with screens.

Interior finishes will be a sealed concrete floor, painted concrete masonry unit (CMU) walls, and painted gypsum board ceiling.

5.6 Covered Mess

General Description: The building is to provide an area of protection from the weather for personnel using the range.

The size of the building footprint is 800 square feet.

The building occupancy will be designed for 62 personnel.

The floor is cast-in-place concrete with turned-down edges and spread footings.

The exterior walls are a pre-finished metal wall panel on girts of a structural steel braced frame. The metal wall panels shall be installed on three sides of the enclosure.

The roof is a gabled pre-finished standing seam metal roof (SSMR) system on purlins of an engineered metal building system (MBS). Gutters and downspouts will be provided to collect and direct the water away from the building.

Louvers will be installed in the back wall of the enclosure to provide ventilation.

Stainless steel standing height tables assembled in three rows with an additional serving table will be used for the mess service.

Interior finishes will be a sealed concrete floor and painted structure.

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5.7 Latrine

General Parameters: The building is to provide lavatory facilities for the personnel who are using the range. Facility will be an aerated vault latrine.

The total building footprint including any concrete pads / vault access manholes is limited to 200 square feet in accordance with the approved Environmental Impact Statement (EIS) for this Project.

The building is designed to maximize the number of individual unisex vault latrine rooms while providing the necessary aeration equipment space and the vault cleanout within the prescribed 200 SF.

The layout for the Latrine accommodates four individual unisex rooms.

The floor is cast-in-place concrete with turned-down edges and spread footings.

The exterior walls are load bearing reinforced split-faced concrete masonry units

(CMU) with smooth-faced concrete masonry unit (CMU) accents.

The roof is a mono-sloped pre-finished standing seam metal roof (SSMR) system on trusses with batt insulation. Gutters and downspouts will be provided to collect and direct the water away from the building.

The personnel doors and frames are insulated hollow metal.

Louvers will be installed to assist in ventilation.

Interior finishes will be a sealed concrete floor, painted concrete masonry unit (CMU) walls, and painted gypsum board ceiling.

5.8 MPMG Lanes 1 – 3 and 8 – 10

A Two-Man Walk-In Fighting Position (FP-01) will be provided at each lane. Each lane will be 25 meters wide at the firing line, 100 meters wide at 800 meters from the firing line and 800 meters in length. These lanes will allow the ORARNG to train with M60 MG, M240B MG, M249 SAW, and M249 AR.

5.9 MPMG Lanes 4 – 7

A combined Two-Man Walk-In Fighting Position / Vehicle Firing Position (FP-02) will be provided at each lane. Each lane will be 25 meters wide at the firing line, 100 meters wide at 800 meters from the firing line, and 1500 meters in length. These lanes will allow the ORARNG to train with the M60 MG, M240B MG, M249 SAW, M249 AR, M2 MG, and Mk-19 MG (40mm TP).

5.10 Fighting and Vehicle Firing Positions

Each Lane is provided with either a Two-Man Walk-In Fighting Position or a Vehicle Firing Position as described in 5.9 and 5.10 above. Fighting Positions and Vehicle Firing Positions are placed on top of the Firing Line aggregate surfacing so that the top of the fighting / firing position wall is approximately 4’-0” above the firing line grade, with earthen berms placed around the positions on top of the firing line grade to simulate below-grade fighting positions and / or hull-down defilade firing positions for vehicle mounted weapon systems. The berms also provide an 8’-0” x 3’-0” flat surface along both sides of the walk-in fighting positions to allow for prone position firing on top of the berms.

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6. Discussion of Structural Systems

6.1 Foundation System: Foundations will be shallow, spread, and continuous footings.

Slabs-on-grade will be reinforced with reinforcing bars and will bear on a minimum four-inch layer of crushed stone to act as a capillary water barrier. To mitigate the potential for moisture migration through the slabs, all slabs-on-grade will be underlain with a 10 MIL vapor retarder. (TBD pending Geotechnical Report)

6.2 Floor Framing System: Most of the facilities in this project are single story buildings that, as such, do not have elevated floor framing systems. However, elevated floors do exist in the Control Tower. The elevated floors consist of galvanized steel grating at observation decks and a 3” normal weight concrete slab over galvanized steel composite deck in the office area. The access stairs and landings are framed with structural steel channels and galvanized steel grating.

6.3 Roof Framing System: The roofs of the Control Tower and Bleacher Enclosure support facilities are gabled and mono-slope, respectively. The standing seam roofs are supported on structural steel tube or channel purlins. The purlins are, in turn, supported by structural steel beams and columns.

All other facilities have gabled roofs. In these buildings, the standing seam roofs are supported on manufactured wood trusses and plywood. The wood trusses bear on either reinforced masonry walls or structural steel beams and columns.

6.4 Walls and Partitions: The exterior walls of the reinforced masonry buildings are used as load-bearing walls and shear walls. Non-load bearing, interior partitions in the buildings are either reinforced masonry or metal stud and gypsum board partitions. The Bleacher Enclosure, Covered Mess and Control Tower have diagonal braces to transfer the lateral forces to the foundations.

7. Drawings of Proposed Facilities

The drawings of the proposed project are bound separately.

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B. PROPOSED SITE

1. Proposed Project Site The proposed site for the MPMG Range is located at the United States Navy’s Naval Weapons Systems Training Facility (NWSTF) Boardman, Oregon. The NWSTF Boardman is an approximately 46,722-acre, 6-by-12-mile rectangular parcel located approximately 3 miles south of Boardman, in Morrow County, Oregon. NWSTF Boardman is an active training range and military installation administered by the Commanding Officer of Naval Air Station (“NAS”) Whidbey Island, Washington.

This proposed range consists entirely of gently sloping open grassed fields / meadows with sparse shrub and tree vegetation throughout as indicated on the Vicinity Map in the design drawings. The soils on the proposed MPMG site consist entirely of soil classified as 26B Koehler Loamy Fine Sand on 2% to 5% slopes as indicated on the Soil Types Map in the design drawings.

NWSTF Boardman has been restricted to inert munitions since being transferred to the U.S.

Navy in the early 1960’s and has subsequently undergone annual Operational Range Clearance (ORC). The range previously supported a variety of undocumented military activities after being established in 1942.

A Munitions and Explosives of Concern (MEC) Reconnaissance (Recon) of the proposed MPMG Range at NWSTF Boardman was conducted on August 14 – 16, 2012, and indicated that based on field observation, the proposed site is Low Risk for MEC exposure and recommended standard Contractor Awareness Training prior to construction as the only mitigation measure.

The following environmental studies have been completed:

2. Surface Danger Zone (SDZ) Analysis A detailed Surface Danger Zone (SDZ) Analysis was performed by the Oregon Military Department dated 22 May 2024, is included in Appendix 2.

3. Site Grading The site grading for a range revolves around establishing the firing line elevations and the target elevations to maintain proper Line-of-Sight (LOS) so the range can properly function for training. Site grading was designed to insure good drainage around the buildings, roads, and targets for good function of the range. A LOS analysis has been performed to all range targets and is included in Appendix 6.

4. Site Cut and Fill The typical goal for a site design is to balance the cut and fill for the site. Every attempt has been made during the design process to make this a balanced site. Unanticipated excess material will be spread over disturbed areas that do not interfere with Line of Sight and will be graded to drain. Unanticipated additional embankment material will be obtained by over-excavating in disturbed areas and these areas will be graded to drain.

5. Site Grades The following criteria were used as a general guide for the site grades:

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Grade within 10 feet of buildings: max 10%, min 5% all draining away from buildings and control towers.

Drainage should be away from the firing line on both sides. No drainage shall flow toward any firing position.

Maximum parking area grade: 5% max grade perpendicular to contours.

Side slopes of berms to be designed at 3:1 or 2:1 in areas with extreme existing slopes to limit fill quantities and reduce the footprint of disturbed areas.

6. Roadways The access roads to be constructed shall be 24 feet wide with aggregate surfacing. The following grade criteria shall apply for the access roads:

Maximum grade: 8% Cross slope: 2% min – 4% max

The proposed maintenance trails will be approximately 12 feet wide and graveled to provide a potential firebreak. A firebreak will also be provided around the perimeter of the proposed range if possible. The following grade criteria shall apply for the maintenance trails:

Maximum grade: 18% Cross slope: 2% min – 4% max

The roads are designed with criteria set forth in UFC 3-250-18FA, “General Provisions and Geometric Design for Roads, Streets, Walks, and Open Storage Areas” and “AASHTO, A Policy on Geometric Design of Highways and Streets”.

7. Parking Areas An aggregate surface parking area will be provided adjacent to the support area.

8. Pavements Pavements include aggregate surfaced roadways, parking areas, support area and maintenance trails. Refer to the Geotechnical Investigation provided in Appendix 4 for pavement requirements. All pavement was designed in accordance with the criteria set forth in the Unified Facilities Code, Series 3-200: Civil / Geotechnical / Landscape Architecture.

9. Storm Drainage Grading for site improvements and buildings directs runoff away from the structures, roadways, and other site improvements. The location and topography of this range provides a site with minimal issues regarding storm drainage and will require few, if any, drainage structures.

10. Utilities Water: No water service will be provided to the range.

Sanitary Sewer: No sanitary sewer will be provided to the range.

Gas: No gas improvements will be provided.

Electrical: There is an existing overhead three-phase line (12.47kV) approximately

2,200 feet from the site. This service will be modified to provide power for the new facilities and also to accommodate the downrange power requirements. The Contractor will provide all electrical materials and

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Telephone/Communications: The nearest point of connection is approximately 2,200 feet from the site via overhead power poles. The underground route to the site will follow the underground electrical pathway.

11. Landscaping No landscaping will be performed as part of this project.

12. Environmental Issues A detailed Environmental Assessment was undertaken by the ORARNG utilizing RB&G Engineering under separate contract. Refer to those environmental documents for additional information. In addition, RB&G Engineering has provided survey data for this project.

13. Architectural Treatment of Building Exteriors The exterior material used for the support buildings is CMU. This choice was made for its durability and low maintenance costs. The exterior treatment on the training structures is in accordance with the issued standards. See the table below for current material choices.

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C. DESIGN CRITERIA

1. General

- TC 25-8, Training Ranges, 02 November 2021

- 17833 Multi-Purpose Machine Gun Range (MPMG), RTLP-MCX Range Design Guide dated July 2022

- NG PAM 415-5, Army National Guard Military Construction Program Execution, dated 31

July 2004

- Army Regulation (AR) 385-63 Range Safety, 30 January 2012

- DA PAM 385-63 Range Safety, 16 April 2014

- National Guard Regulation (NGR) 385-63 Army National Guard Range Safety Program, Policy, and Standards, 28 February 2019

2. Guide Specifications Unified Facilities Guide Specifications (UFGS) and SpecsInTact have been utilized as the guide specification for this project. Additionally, these guide specifications have been edited to incorporate and reference the 2024 Oregon Department of Transportation, Standard Specifications for Construction (ODOT SSC) for site related items where appropriate.

3. Anti-Terrorism / Force Protection The new MPMG design complies with United Facilities (UFC) 4-010-01, DoD Minimum Antiterrorism Standards as required by the Department of Defense.

MPMG Range AT/FP criteria:

Facility will Comply w/ UFC 4-010-01 Site Concepts Reviewed by ORARNG AT/FP Representative Controlled Perimeter within NWSTF Boardman, Oregon 50-foot Standoff Distance for Ammo Breakdown Building Include swing arm gates to limit vehicular access to vehicle fighting positions

In accordance with the Range Design Guide for the Multi-purpose Machine Gun Range (CEHNC 1110-1-23), HNC has determined that, typically, “the standard complement of ROCA buildings are not considered to be inhabited, are within a controlled perimeter, have guard force access control in place, and are generally not routinely occupied; therefore, no AT/FP measures are required in the project design. Ultimately, however, the Garrison Commander and the Garrison Safety Officer are responsibility for the facilities and may mandate application of AT/FP provisions.”

4. Civil References (Latest edition or revision unless otherwise noted):

AASHTO A Policy on Geometric Design of Highways and Streets IBC International Building Code UFC 3-201-01 Civil Engineering

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UFC 3-210-10 Low Impact Development UFC 3-220-08FA Engineering Use of Geotextiles UFC 3-250-01 Pavement Design for Roads and Parking Areas UFC 3-250-09FA Aggregate Surfaced Roads and Airfield Areas UFC 3-250-11 Soil Stabilization and Modification for Pavements Civil Calculations are included in Appendix 7.

5. Architectural 2022 Oregon Structural Specialty Code (OSSC). Based on the 2021 International

Building Code with amendments.

UFC 1-200-01 DoD Building Code, with Change 2, dated 12 June 2023.

UFC 3-101-01 Architecture, with Change 4, dated 08 January 2024.

UFC 3-110-03 Roofing, with Change 5, dated 12 June 2020.

UFC 3-120-01 Design: Sign Standards, with Change 4, dated 01 February 2023.

UFC 3-120-10 Interior Design, with Change 2, dated 15 June 2021.

UFC 3-190-06 Protective Coatings and Paints, dated 01 March 2021.

UFC 4-010-01 DoD Minimum Antiterrorism Standards for Buildings, with Change 2, dated

30 July 2022.

UFC 4-026-01 Design to Resist Forced Entry, dated 04 March 2020.

UFC 4-179-02 Small Arms Ranges, dated 05 March 2020.

6. Structural

6.1 Technical Requirements:

2022 Oregon Structural Specialty Code ASCE 7-16– Minimum Design Loads and Associated Criteria for Buildings and Other Structures, Including Supplement 1, 2 and 3 (American Society of Civil Engineers) AISC 360-16 – Specification for Structural Steel Buildings (American Institute of Steel Construction) AISC 341-16 – Seismic Provisions for Structural Steel Buildings (American Institute of Steel Construction) ACI 318-19 – Building Code Requirements for Structural Concrete (American Concrete Institute) S-007 – North American Specification for the Design of Cold-Formed Steel Structural Members (American Iron and Steel Institute) NDS-2018 – National Design Specification for Wood Construction with 2018 Supplement (American Forest and Paper Association) SDI-C-2017 Standard for Composite Floor Deck SDI-QA/QC-2017 Standard for Quality Control and Quality Assurance for Installation of Steel Deck TMS 402-2016 Building Code Requirements for Masonry Structures

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TPI 1-2014 National Design Standard for Metal Plate Wood Truss Construction WR1/CRSI-81 Design of Slab-On-Ground Foundations with 1996 Update

6.2 Design Loads:

Roof and Floor Gravity Loads:

Dead Load – actual weight of materials used Ground Snow Load – 29 psf Sloped Roof Live Load – 20 psf (minimum) Floor Live Load – 100 psf Stairs and Corridors Live Load – 100 psf.

Elevated platform – 60 psf.

Wind Load:

Exposure – C Importance Factor – 1.0 Basic Wind Speed – 100 mph

Seismic Loads:

Seismic Use Group – I Importance Factor – 1.0 Building Occupancy Category – II Seismic Design Category – D Site Class – D R = 5.0 (Special Reinforced Masonry Shear Walls) R = 3.25 (Ordinary Steel Concentric Braced Frames) R = 1.25 (Steel Ordinary Cantilever Column System) SS = 0.409*g S1 = 0.160*g SDS = 0.402*g SD1 = 0.243*g

Soil Pressure and Frost Depth: In accordance with the Geotechnical Investigation, all foundation designs should bear on properly prepared engineered soils and shall be designed for a 2500 psf maximum bearing capacity for strip/wall footings or 2500 psf maximum bearing capacity for column footings. Footings will be founded at a minimum depth of 24” below finished exterior grade.

6.3 Design Stresses:

Cast-in-place Concrete: fc' = 4000 psi Reinforcing Steel: ASTM A615, Grade 60 Structural Steel (Allowable Stress Design):

General – ASTM A36 Wide-flange shapes – ASTM A992 Round, Square, and Rectangular Tube sections – ASTM A500, Grade B Anchor bolts – ASTM F1554, Grade 36 Connection bolts – ASTM A325

Composite Steel Floor Deck: Designed in accordance with SDI (latest edition) Type 2VLI - Fy = 33 ksi, ASTM A-653 with G90 galvanized coating

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Masonry: Designed in accordance with TMS 402-2016 f'm = 1500 psi Type S mortar Reinforcing Steel, ASTM A615, Grade 60 Grout – 2000 psi compression strength

6.4 Load Combinations: Per OSSC Section 1605.

6.5 Deflections: Per OSSC Section 1604.3.

6.6 Wind and Seismic Provisions: Wind and seismic forces in the Ammo Breakdown Building, Classroom Building, , Latrine and Operations Storage Building support facilities are transferred from the wall elements to the roof deck and the foundation.

The plywood roof deck acts as the structural diaphragm to transfer the lateral forces into the reinforced masonry shear walls. The shear walls, in turn, transfer these forces into the foundation.

Wind and seismic forces in the Bleacher Enclosure, Covered Mess and Control Tower support facilities are transferred from the wall elements to the floor and/or roof deck, through the diagonal braces and finally to the foundation. Since the light-gage decks or grating cannot be utilized as diaphragms on these structures, a system of horizontal bracing consisting of steel angles or straps are provided to transfer lateral forces to the concentrically-braced steel frames. On the control tower floor itself, the concrete slab over metal deck acts as the structural diaphragm. The braced frames transfer the wind and seismic forces into the foundation.

6.7 Economic Justification: The structural systems for all buildings are provided by the USACE in the Range and Training Land Program (RTLP) design standards. It is our understanding that the selected systems have proven to be the most cost effective, over their lifespan, for the intended use. In most cases, we assume durability is also a controlling factor in the selection of the structural system.

Although other structural systems could be utilized for these facilities, we believe the systems chosen for use throughout the project are among the most cost-effective systems available. As such, we see no reason to deviate from the systems provided.

Structural Calculations are included in Appendix 9.

7. Electrical The electrical equipment/systems shall be selected and sized based on the MPMG Range requirements. Electrical service shall be taken from an extension of the existing overhead primary service at the range site. This extension shall be converted to an underground service which will extend to pad mounted transformers serving the facility and range locations. The transformers and associated pads are to be furnished and installed by the Contractor. The transformer primary service is 12.47kV. The secondary voltage to the range and facility buildings will be 120/240 volt single-phase.

Lighting will be included along the firing positions in support of night operations. In addition, red lighting will be included on the Range and the facilities.

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A conventional lightning protection system will be provided for the Ammo Breakdown Building, Classroom Building, Ops and Storage Building, Bleacher Enclosure, and Control Tower. These systems will include air terminals, roof-mounted lightning protection conductors, down conductors, ground rods, and a ground ring.

There will be two communication systems on this project. The Common User Network will be used for general telecommunications. This system will only be provided in the ROC, classroom, and Ops/Storage buildings. All other buildings will not have the Common User Network provided. This system will be a fiber-only backbone. 24-strand single mode OSP fiber will be brought in from the utility to the ROC building and 12-strand single mode fiber will be used to feed the classroom and Ops/Storage. Horizontal cabling will be installed in conduit and will be Cat 6. Cable tray will not be used. Due to the nature of the project and limitations in building size, no designated telecom rooms will be provided. To provide a level of protection, lockable cabinets will be used rather than open racks.

For the range targeting system another dedicated communications system will be installed.

It will originate in the ROC Building and will be a stand-alone system. It will not interface with the Common User Network. 6-strand fibers will be routed from the DTR to each of the power centers, located at 200m, 400m, 600, 800m, 1100m, and 1500m. A fiber optic splice box (FOSB) will be provided at each location which will be constructed adjacent to a data cable breakout box (DBB). This DBB box will house the DSL modems that allow Cat 6 cable to be routed at lengths up to 3000’. For this standalone system all backbone will be fiber from the DTR to the FOSB. All horizontal cabling from the DBB to individual target emplacements will be direct burial grad Cat 6 armored cable. No more than three targets will be daisy-chained together on a single Cat 6 homerun back to the DBB.

The following standards/organizations will be referenced during the electrical design of the ranges and facilities:

NFPA 70 (2020 edition) National Electrical Code NFPA 101 (2021 edition) Life Safety Code IEEE C2 (2017 edition) National Electrical Safety Code NEMA National Electrical Manufacturer’s Association NFPA 780 (2017 edition) Standard for the Installation of Lightning

Protection Systems ASHRAE Standard 90.1: (2019) Energy Standard for Buildings Except Low-Rise Residential Buildings DA PAM 385-64 Ammunition and Explosive Safety Standards UFC 1-200-01 General Building Requirements UFC 1-200-02 High Performance and Sustainable Building Requirements UFC 3-501-01 Electrical Engineering UFC 3-520-01 Interior Electrical Systems UFC 3-530-01 Design: Interior and Exterior Lighting and Control

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UFC 3-550-01 Exterior Electrical Power Distribution UFC 3-575-01 Lightning and Static Electricity Protection Systems UFC 3-580-01 Telecommunications Interior Infrastructure and Planning UFC 4-010-01 DOD Minimum Anti-Terrorism Standards for Buildings Range Design Guidelines Feb. 2020 Range Design Guidelines Electrical Details – 2023

Electrical calculations are included in Appendix 8.

8. Mechanical

8.1 Technical Requirements:

UFC 1-200-01 DoD Building Code: General Building Requirements; Change 2, 12 June 2023 UFC 1-200-02 High Performance and Sustainable Building Requirements; Change 2, 01 June 2022 UFC 3-400-02 Design: Engineering Weather Data; 20 September 2018 UFC 3-401-01 Mechanical Engineering; Change 1, 1 October 2015 UFC 3-410-01 Heating, Ventilation, and Air Conditioning Systems; Change 8, 21 July 2021 Oregon Energy Efficiency Specialty Code 2022 Oregon Mechanical Specialty Code ASHRAE Handbooks: American Society of Heating, Refrigerating and Air Conditioning Engineers, Inc.

ASHRAE Standard 62.1-2019: Ventilation for Acceptable Indoor Air Quality ASHRAE Standard 90.1-2019: Energy Standard for Buildings Except Low-Rise Residential Buildings ASTM Codes and Standards: American Society of Testing and Materials SMACNA Guidelines: Sheet Metal and Air Conditioning Contractors National Association, Inc.

8.2 Criteria:

Project Location: Boardman, Oregon ASHRAE Climate Zone: 5B WMO: 727845 (Pasco Tri-Cities, WA) Elevation: Approx. 407 feet ASL Latitude/Longitude: 46.267N / 119.117W Heating Degree Days: 4952 (Base 65° F)

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Benham Design, LLC 18 Project No. 1400386

Cooling Degree Days: 3164 (Base 50° F)

Outside Air Conditions:

Summer: 96.3° F DB / 67.7°F WB (ASHRAE 1%) Dehumidification: 76.7° F DB / 66.7°F WB / 84.0 HR (ASHRAE 1%) Winter: 16.9° F DB (ASHRAE 99%)

Indoor Design Conditions:

Building Building Area Cooling Design Temp

Heating Design Temp

Max Relative Humidity

Classroom Classroom 78° F 68° F 60% Control Tower

Control Tower 72° F +/- 2° F 72° F 60%

Equipment Rm AMBIENT +10 DEG 50° F N/AOperations & Storage Storage AMBIENT +10 DEG 50° F N/A Latrine Latrine None 45° F N/A

Redundancy Requirements: No redundancy required.

Occupancy: The number of occupants in each space will be based on the actual occupant density listed in the facility program.

8.3 Design:

This project is to construct a Multi-Purpose Machine Gun (MPMG) Range at a Naval Weapons Systems Training Facility (NWSTF) located in Boardman, Oregon. The MPMG is composed of one 10 lane Multi-Purpose Machine Gun Range and contains the following support buildings: Classroom Building, Range Control Tower, Bleacher Enclosure, Ammunition Breakdown Building, Operations and Storage Building, Covered Mess, and Latrine.

The support buildings with conditioned spaces include the Classroom Building and the Control Tower. DX heat pumps were chosen to provide air conditioning to these facilities. Natural gas service is not available to the site, therefore electric resistance coils will be used as backup heat to assist the heat pumps in heating when it is required by the space. The Operations and Storage Building, along with the Vault Latrine will require heating and ventilation only.

Classroom Building (800 sq/ft):

A ground mounted single packaged 4-ton DX unit with a 2-stage electric heat pump similar to TRANE 4WCZ5048E1000A, and a remote mounted programmable

Boardman, Oregon

Benham Design, LLC 19 Project No. 1400386 thermostat will provide HVAC to this facility. A 15-kW electric heater is added to this unit to provide backup heat when required by the space.

Control Tower (289 sq/ft):

A single package vertical wall-mount 3 ton electric heat pump with inverter technology similar to BARD W3VHY-R05EPXXX, with a remote mounted programmable thermostat will provide HVAC to this facility. A 5 kW electric heater is added to this unit to provide supplemental heat when required by the space.

IT Equipment in the space includes: Data Termination Rack (DTR) with a heat release of 1552 watts (60% @ normal operation) and a Target Control Station with a heat release of 330 watts.

Operations/Storage Building (800 sq/ft):

Both the equipment room and the storage room will each contain a 500 cfm roof mounted exhaust fan with corresponding 24” x 16” intake louver to provide ventilation to each side of the building. Each exhaust fan shall be controlled with a wall switch. An electric unit heater on each side will provide heat required to maintain 50° F in the space.

Latrine Vault (200 sq/ft):

A roof mounted exhaust fan will be ducted into the holding tank and corresponding door grilles will provide ventilation and reduce latrine odor. Electric unit heaters are provided for heat during the winter. The aeration system will continuously supply air to the waste vault to aid in decomposition.

8.4 Calculations:

The Mechanical Design Calculations are included in Appendix 10.

9. Sustainability and LEED

9.1 Technical Requirements:

UFC 1-200-02 High Performance and Sustainable Building Requirements; Change 2, 01 June 2022

9.2 General

Per direction of the ORARNG and UFC 1-200-02 High Performance and Sustainable Buildings Requirements, Chapters 1 and 2, this project will incorporate sustainability to the maximum extent possible; however, LEED certification and tracking with the USACE Sustainability Scoresheet are not required by the Contractor. NGB-ILI has determined that training range projects will not be required to achieve LEED certification as the buildings are less than 10,000 sf. Commissioning of the buildings is not required by the ORARNG.

Since water will be trucked to the site, water metering is not required. The project will be designed to include low VOCs and emissions, recycled content of materials per EPA Comprehensive Procurement Guideline recommendations, and biobased materials per the USDA Bio-preferred Program recommendations.

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Benham Design, LLC 20 Project No. 1400386

10. Fire Protection Per direction of the ORARNG installation, Fire Suppression, Fire Alarm, and Mass Notification systems are not required for these facilities provided the facility meets the requirements for construction assembly, means of egress, and building components as established in NFPA 101, TBC and UFC 3-600-01.

Architectural barriers act (aba) accessibility standards for DoD facilities, 2015 2018 international building code (IBC), as amended by UFC 1-200-01 Engineering and construction bulletin (ECB) no. 2018-17, new requirements for visual notification for mass notification systems, rev. 1, May 14, 2020 NFPA 1, fire code, 2021 NFPA 10, standard for portable fire extinguishers, 2018 NFPA 13, standard for the installation of sprinkler systems, 2019 NFPA 24, installation of private fire service mains and their appurtenances, 2019 NFPA 70, national electrical code, 2020 NFPA 72, national fire alarm and signaling code, 2019 NFPA 80, standard for fire doors and other opening protectives, 2019 NFPA 90a, standard for the installation of air-conditioning and ventilating systems, 2021 NFPA 101, life safety code, 2021 NFPA 400, hazardous materials code, 2019 NFPA 495, explosive materials code, 2018 UFC 1-200-01 DoD building code, change 1, October 1, 2020 UFC 3-420-01, plumbing systems, April 1, 2021 UFC 3-520-01, interior electrical systems, change 1, March 20, 2019 UFC 3-600-01, fire protection engineering for facilities, change 5, September 24, 2020 UFC 4-010-01, DoD minimum anti-terrorism standards for buildings, change 1, August 19, UFC 4-021-01 design and o&m: mass notification systems, change 1, January 2010

Occupancy classification The buildings occupancy classification for compliance with building code requirements such as construction type, allowable height and area, building separation distance, occupancy separation and associated requirements shall be in accordance with the IBC (UFC 3-600-01 §3-2.1.2). The building occupancy classification for compliance with fire/smoke resistance rating of interior non-load bearing partitions (other than occupancy separation), means of egress, interior finish, features of fire protection (vertical openings) and associated requirements shall be in accordance with NFPA

101 (UFC 3-600-01 §3-3.1.1).

Buildings are each single occupancy consisting of business group "B"; moderate hazard storage "S- 1"; and assembly group A-5; (IBC §3 and NFPA 101 §6). The occupancies involved are as follows:

Business group "B" consists of buildings for bleachers, control tower, classroom, mess shelter and latrines.

Moderate hazard storage group "S-1" consisting of buildings for ammo breakdown and operations / storage.

Assembly group "A-5" consisting of building for bleachers.

Allowable height and area Buildings based on single use on same lot with use of B, S-1 and A-5 IBC §508.3 Stories B: 2 allowed/ 1 actual IBC table 504.4

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Stories S-1: 1 allowed/ 1 actual IBC table 504.4 Stories A-5: unlimited allowed/ 1 actual IBC table 504.4 Height (B, S-1 and A-5) 40 ft allowed/ xx ft actual IBC table 504.3 Occupancy base allowed (sq. Ft.) Total allowable per floor (sq. Ft.)

B 9,000 9,000 S-1 9,000 9,000

A-5 unlimited unlimited

Based on type VB, Non sprinklered building, the maximum allowable area per floor for the aggregate areas allowed for buildings on the same lot is.

Actual area:

Tower: 280 sq. Ft.

Classroom: 800 sq. Ft.

Mess: 800 sq. Ft.

Ammo: 120 sq. Ft.

Latrine: 330 sq. Ft.

Storage/operations: 800 sq. Ft.

Bleachers: 660 sq. Ft.

Total aggregate building areas per floor Ground floor: 3,790 sq. Ft.

Fire department access Site is considered remote and meets UFC 3-600-01 4-42 for ranges and remote locations. Site not required to meet "fire department vehicle access" section of UFC3-600-01 or NFPA 1141.

Fire flow Site is considered remote and meets UFC 3-600-01 4-42 for ranges and remote locations. The water supply has not been determined to be necessary.

Means of egress:

All components and features related to means of egress shall comply NFPA 101 and UFC 3-600-01

(UFC3-600-01 §10-1.1).

The occupancy loads are determined based on the area, function of the space, and the occupant load factor (sq. Ft. /Person). The occupant load factors are provided in UFC3-600-01 table 10-1 and NFPA 101 table 7.3.1.2. The occupant load factor is based on the actual use of the space, not on its occupancy classification. Occupant load calculations are provided on the life safety floor plans.

Minimum number of means of egress required:

Occupant load 1-500: not less than 2 exits required NFPA 101 §7.4.1.1 A single means of egress is permitted in ordinary hazard storage areas provided that the exit can be reached within the distance permitted as a common path of travel (100 ft) per NFPA101

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Benham Design, LLC 22 Project No. 1400386

§42.2.4.1(2).

A single means of egress from special structure towers is permitted provided the following conditions are met:

1. Tower shall be subject to less than 25 occupants.

2. Tower shall not be used for living or sleeping purposes.

3. Tower shall be of type I, type II, or type IV construction.

4. Tower interior wall and ceiling finish shall be class a or class b.

5. No combustible materials shall be located within the tower, under the tower, or within the immediate vicinity of the tower, except necessary furniture.

6. No high-hazard occupancies shall be located within the tower or within its immediate vicinity.

The egress/exit capacity for an exit is determined by dividing the clear width of the exit, as determined in accordance with NFPA 101 §7.2.1.2.1, by the egress capacity factor.

Egress capacity factors: NFPA 101 table 7.3.3.1 Level components & ramps: 0.2 inches per occupant served Exit capacity calculation for each exit is shown on the life safety floor plans.

The minimum separation distance between two exits, exit accesses, or exit discharges, shall be not less than one-third the length of the maximum overall diagonal dimension of the building or area to be served, in fully sprinklered buildings (NFPA 101 §7.5.1.3.3). The distance shall be measured in a straight line between the nearest edge of the exits, exit accesses, or exit discharges (NFPA 101 §7.5.1.3.2).

Doors are required to swing in the direction of egress travel where serving a room or area with an occupant load of 50 or more, the door is part of an exit enclosure, or where the door opening serves a high hazard contents area (NFPA101 §7.2.1.4.2).

All locks, latches and all other fastening devices on a door leaf shall be provided with a releasing device that has an obvious method of operation and that is readily operated under all lighting conditions (NFPA101 §7.2.1.5.3).

Travel distance limit: NFPA 101 table a.7.6

New assembly: 200 feet

New business: 200 feet

Ordinary hazard storage occupancy 200 feet

Special structure (tower): 75 feet NFPA 101 11.3.2.4.2

Common path limit: NFPA 101 table a.7.6

New assembly:

Less than 50 people: 75 feet

New business: 75 feet

Ordinary hazard storage occupancy: 50 feet

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Dead-end limit: NFPA 101 table a.7.6

New assembly: 20 feet

New business: 50 feet

Ordinary hazard storage occupancy: 50 feet

Where the contents are classified as high hazard, exits shall be provided and arranged to allow all occupants to escape from the building or structure, or from the hazardous area thereof, to the outside or to a place of safety with a travel distance of not more than 75 ft (NFPA 101 §7.11.1).

NFPA 101 §7.11.1 does not limit occupants to a 75 ft travel distance but requires escape from the high hazard contents area itself with not more than 75 ft of travel. The place of safety outside the high hazard area is permitted to be within the building's exit access and additional travel might be necessary to reach an exit.

Boardman, Oregon

Benham Design, LLC Project No. 1400386

APPENDIX 2

SURFACE DANGER ZONE (SDZ) ANALYSIS

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