A10_Attach_02_-_Region_5_Design_Standards_Batterson___Jerseydale_DRAFT.doc

US Forest Service Batterson & Jerseydale New Construction Sierra National Forest

Attachment B: Region 5 Design Standards Sierra National Forest

DESIGN OBJECTIVES

1. The design of the new facilities and site shall reflect and incorporate Region 5 aesthetics as depicted in the Forest Service Barracks drawings provided. Incorporating the design elements helps provide architectural and design theme components that are harmonious with, and complimentary to the natural environmental setting and Regional Architecture strategy.

2. At 65% design stage conduct a third-party engineering value analysis by systematically examining the project’s elements, materials, systems, and processes.

3. Design the building, interior furnishings, utilities, and site work to meet all applicable FAR requirements for sustainability.

4. Design the new office spaces and individual workstations utilizing Forest Service mandated space utilization requirements that promote space efficiency and cultivate workspaces that reinforce the agency’s mission by: optimizing space, promoting collaboration, supporting internal mobility, increasing external mobility, improving technology, embracing change management and reducing the environmental footprint of our infrastructure through the use of various means:

A. Design and maintain office space with workstations not exceeding 36 square feet in order to meet the 150 square foot/ employee mandate issued by the Department.

B. Incorporate applicable measures to comply with California 2016 Building Energy Efficiency Standards: Title 24, Part 6 and Associated Administrative Regulations in Part 1.

C. Design the facility to use at least 30% less energy than the baseline standard, if cost effective. The baseline standard for commercial buildings is ANSI/ASHRAE/IESNA Standard 90.1-2004. The measures used to attain this efficiency must be life cycle cost-effective as required by 10 CFR Parts 433, 434, and 435. Life cycle cost effectiveness must be documented by analysis of alternatives according to NIST Handbook 135. Four methods are allowed to show this:

a. Lowest life cycle costs.

b. Positive net savings.

c. Savings-to-Investment ratio greater than 1.0, or

d. An internal rate of return higher than the discount rate published by OMB (10 CFR 436.22).

D. Utilize natural boulders and native vegetation for site work to provide separation, visual buffers, security, and privacy and help dictate traffic and pedestrian movement through the site. Low water use vegetation and other landscaping requirements should be coordinated with the LEED® or Green Globes® process.

E. Design the facility and all components of the building and site to be durable, sustainable, low- maintenance and to function well in the weather conditions in the Trimmer and Auberry area and building use as the home base for field going personnel.

F. Design the facility and site improvements to have a minimum life of 50 years G. Utilize an integrated design team approach with all disciplines focusing together on creating a quality design response that unites landscape, interpretation, interior design, and architecture to project the land management ethic of the Sierra NF.

H. Maximize the use of natural daylight and minimize and dampen the acoustic effects of the open office setting (as well as throughout the facility), and review opportunities for the on-site personnel to enjoy outdoor space while taking into consideration the best flow of operations traffic.

General Site Requirements

1. Site Characteristics

A. Paving: Bituminous paved parking areas (consider porous pavement for new pavement areas); concrete sidewalks and pathways.

B. Gradients: Maximum gradients on parking surfaces shall not exceed 5% with accessible portions not to exceed 2%; pedestrian surfaces shall not exceed 5% unless ramp conditions are required. The project shall be designed to fit the terrain rather than altering the terrain to fit the project. Reduce stormwater total suspended solids (TSS) discharge.

C. Vegetation, Irrigation, Landscape using native and drought tolerant species. Use high efficiency irrigation technology or captured rain/recycled water. Minimize or eliminate use of potable water for irrigation.

D. Open Space: Maintain maximum open space

E. General Character: Applying the agency’s land management mission with preserved open space.

2. Utility Requirements

A. Special Requirements: Wherever possible, without sacrificing safety or security concerns, utilize lighting that will minimize off-site lighting effects. Meet or provide lower light levels than those recommended by the Illuminating Engineering Society of North America (IESNA), Recommended Practice Manual for lighting exterior environments (RP-33). Minimize light pollution.

B. Provide pole-mounted, cutoff-type down lighting (photocell activation) for new parking areas

C. Provide outside architectural down lighting (photocell activation) to illuminate the perimeter of the building.

D. Provide exterior illumination (photocell activation) for pedestrian connection from parking areas to the Employee Entrance.

E. Oversize site and building telecommunications, data and electrical conduit for future site development.

F. Provide internet capabilities for the Forest Service (requires coordination with Forest Service Chief Information Office (CIO) team)

3. Proximity & Access Requirements

A. Employee and government vehicle parking should be near the buildings each staff serve.

B. Provide outdoor small, shaded steel structure (picnic area/ benches) where the barracks (batterson) and metal buildings (jerseydale & batterson) would be constructed.

C. Dumpster pad screened with artificial materials. Adjacent to metal building 100’x100’ at batterson and metal building 20’x30’ at jerseydale on the back.

DEVELOPMENT CONSIDERATIONS

Site Considerations

1. Site development plan

A. The Site Plan is included in the Project Site section of the SOW and is intended to show existing site elements and the area available for the new facility. Firms are encouraged to provide site design concepts addressing the new building and parking areas required and dedicated, accessible employee entry elements which unify the outdoor environment and architecture into a cohesive whole. Generally, the design objectives for the site are:

i. Preserve desirable natural attributes of the site.

ii. Analyze stormwater runoff created by the site development and design the site to accommodate projected maximum flows from a 25-year event.

iii. Provide space for processing all wastes created onsite (collection/recycling facilities) so that no hazardous or destructive wastes will be released into the environment.

iv. Determine environmentally safe means of onsite energy production and storage in the early stages of site planning.

v. Design the site to allow the natural and developed ecosystems to be self-maintaining to the greatest extent possible.

vi. Develop facilities to integrate selected maintenance functions such as energy conservation, waste reduction, recycling, and resource conservation into the visitor experience.

B. Visual suitability

i. Locate new parking areas to best serve intended functions (employees, government vehicles) and minimize required site grading.

ii. Grade, retain topsoil, and reuse with landscaping of all disturbed areas.

C. Soils: A preliminary geotechnical site evaluation by the Forest Service has not been competed. The DBC may use the soil classifications from the IBC to determine the load-bearing capacity for design recommendations.

Design Considerations

1. Accessibility: The design shall meet the requirements of ADA (Americans with Disabilities Act) and ABA (Architectural Barriers Act).

2. Life Expectancy: The facility shall meet the requirements of a life expectancy of at least 50 years.

3. Sustainability: Incorporate the use of either the Leadership in Energy and Environmental Design (LEED)® Green Building Rating System (U.S. Green Building Council), or Green Globes® as a standard to develop design alternatives that optimally incorporate sustainable principles. The final project will not be registered. Design by the A&E firm/contractor must meet the U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED)® rating system (minimum Silver certification), Green Globes® (minimum Two Green Globes certification), or other ANSI-accredited third-party certification system at a level comparable to either LEED Silver or Two Green Globes.

4. Design Guidelines: The design shall achieve local building standards, guidelines and restrictions. Design and development of the project must meet the requirements and follow the guidance of any local Design Guidelines in effect. All buildings within the compound shall have cohesive architectural qualities. Structural Insulated Panels (SIPS) walls (both interior and exterior), metal siding and roofs, aluminum clad windows, and mass timber framing shall all be considered and utilized where appropriate.

5. Landscape

A. Xeriscape Techniques and Indigenous Plant Selection

i. Utilize native and drought tolerant species for landscaping. All plant species utilized in the landscape design must exhibit hardiness characteristics equal to the inherent nature of the site.

B. Site Disturbance and Reseeding

i. All topsoil excavated should be stockpiled on site and re-utilized. All areas disturbed by construction will be re-graded, re-seeded and planted with native species.

C. Design Integration

i. Landscape/hardscape design work should be a natural extension of and reinforce the existing landscape and natural surroundings.

D. Landscape/hardscape design should integrate with the building and site security strategies

i. See Security Development Considerations E. Incorporate outdoor small shade steel structure (picnic area/ benches) with the landscaping where the barracks (batterson) and metal buildings (jerseydale & batterson) would be constructed.

Architectural

1. Code The following design information is to be clearly indicated on the cover page of all drawings:

Occupancy Classification, Building Type, Fire Resistive Requirements, Means of Egress Components and required widths as well as exiting strategy, and Structural Assumptions (wind, seismic, floor and roof loading). The building will be designed to meet the requirements of the most recently adopted International building code and Title 24 energy requirements.

2. Sustainability Elements A. Land

i. Locate structures appropriately on the site to minimize their impact.

ii. Keep storm water runoff on site by using Low Impact Development (LID) techniques.

B. Water

a. Use building systems and construction processes that minimize consumption of water

C. Air

i. Use materials without high volatile organic compound (VOC) outgassing

ii. Provide adequate interior ventilation through the introduction of fresh air

iii. Use materials that do not contain CFCs D. Energy

i. Minimize use of processes that consume fossil fuels

ii. Use natural daylighting

iii. Maximize life-cycle energy conservation measures

iv. Maximize insulation

v. Use high thermal performance operable windows

vi. Use insulated window treatments

vii. Use window shading to prevent direct beam penetration.

viii. Use simple control systems

ix. Use natural ventilation systems

x. Use passive solar energy

xi. Use heat recovery systems in conjunction with fresh air ventilation

xii. Use evaporative cooling as appropriate

xiii. Use night-time cooling of interior mass as appropriate.

xiv. Eliminate or minimize fan energy by using radiant techniques as appropriate E. Materials

i. Use low maintenance materials

ii. Use durable materials

iii. Do not use materials from rain forest.

iv. Use renewable materials such as wood, cotton, cork, and cellulose

v. Use materials with low embodied energy (energy used during material extraction, refinement, manufacture, transportation and installation) i.e.: utilize local sources of native rock and sustainably harvested wood products F. Waste

i. Design to modularity of materials to minimize construction waste

ii. Require a Construction Waste Management Plan in construction contract documents

iii. Design internal recycling system for office and personal waste G. Use & Reuse

i. Create a strongly integrated indoor/outdoor relationship that will foster a connection between the user and nature

ii. Incorporate flexibility in planning to enable space to be used to its full potential through multi-use, and to facilitate future retrofitting

iii. Strive for timeless design to minimize future change

iv. Incorporate efficient space planning to minimize size

v. Use salvaged materials, thereby saving energy and reducing pollution associated with resource extraction, processing, and manufacturing

vi. Use recycled materials and materials designed to be easily recycled

Exterior Architectural

1. Design Guidelines

The exterior image of the new buildings should reflect the Region 5 architecture strategy and follow the guidance of any local design guidelines.

2. Design Configuration

A. Utilize glazing judiciously to frame and accentuate primary views, preclude undesirable views, and provide optimal natural daylight to the spaces. Avoid direct beam insolation and direct line of site of visiting public to work and office spaces (avoid the feeling of being in a goldfish bowl).

B. Reduce the need for mechanical space cooling with natural ventilation strategies to include but not be limited to:

i. Utilize operable windows, if cost effective, as necessary to provide fresh air into each space.

ii. Utilize an open floor plan to allow efficient air circulation

iii. Create inlets and outlets in each space to provide efficient air flow

iv. Utilize stack ventilation to induce airflow through convection

v. Note: The design will need to address the following trade-offs associated with natural ventilation strategies and offer recommended solutions or compromises:

a) Increased security requirements and costs

b) Allergens, dirt and dust and associated mitigation costs

vi. Reduce the lighting load in the building with daylighting strategies including but not limited to:

a) Allow each space access to exterior windows if feasible

b) Design high daylight delivery windows with light shelves to distribute daylight through-out the building and prevent direct solar glare.

c) Maximize the available daylight of the existing clerestory windows into the spaces flanking it.

Interior Architectural

1. Interior Design Services

Provide complete interior design services concurrently with the preliminary design, ensuring client understanding and comfort with all components.

2. Design

A. Design the office spaces utilizing 36sqft workstations and the information included in the Program document. Provide one (1) quad outlet and network connection per workstation.

B. Whenever possible, use the layout of required enclosed spaces to break up the open office space into smaller areas for the staff areas listed in the space requirements summary.

C. Provide sound attenuation between and within rooms and ensure room configuration and materials will be acoustically conducive to the nature of the activity of the space.

D. Meet or exceed Sound transmission coefficients (STC) for acoustics as follows:

i. Private offices – 45

ii. Conference rooms of all sizes – 45

iii. Toilets – 45

iv. Radio and Telecommunications room, mail room, and break room – 40

v. Mechanical and Electrical rooms - 50

E. Bathrooms. Ensure new employee restrooms meet fixture and accessibility requirements.

F. Provide close integration of interior design layout with architectural, electrical, mechanical, communication and data design features.

G. Telecommunication Room. Provide appropriate “cold” mechanical room for telecom/data and radio equipment. Provide fiber-optic backbone w/cabling in conduit.

H. Mechanical/Electrical Room. Provide appropriate accessible space for maintenance and replacement of systems employed in the facility. Consider mechanical mezzanines to improve efficiency of floor space use.

I. Storage areas. Ensure that the storage areas are of suitable size for storage of furniture and furnishings as well as program related materials.

Exterior Finishes

1. Fire resistant and low maintenance composite and natural materials shall be used as the primary exterior building materials and optimize window placement to the south for winter solar gain. Utilize glazing on other exposures judiciously to frame and accentuate primary views and facilitate daylighting schemes.

Interior Finishes General

1. All interior finishes shall adhere to those included in the Region 5 design standard drawings and shall complement the architectural concept and may include some of the same materials utilized on the outside of the building.

2. Interior features should convey a sense of warmth and relay human scale.

3. Windows must have shading capability.

4. Factors influencing selection are to include but not be limited to; ease of maintenance, ability to withstand heavy traffic, aesthetics, acoustical properties and how the proposed finishes support the natural, historical, and cultural theme.

ENGINEERING

Structural Requirements

1. Analyze and verify appropriate design wind speed.

2. Analyze and verify appropriate design snow load.

3. Design in accordance with applicable provisions for seismic design in the International Building Code.

4. Incorporate local design codes and standards.

Geotechnical Requirements

1. Geotechnical: The Contractor shall obtain a site assessment for the proposed project location. The geohazard assessment is a screening level assessment to ensure risk associated with the site location are defined and the site is viable before proceeding with the geotechnical investigation.

2. Geohazard Assessment

a. Conduct a geotechnical assessment using available information, empirical relationships, and semi-quantitative analysis.

b. Evaluate risks and geohazards addressed in the IBC, State and Local Ordinance for risks and hazards. In addition, evaluate risks and hazards not specifically addressed in applicable codes for a minimum 50-year timeframe. The assessment may include, but is not limited to, the following:

i. Assessment of long-term wildfire risk.

ii. Assessment of meteorological and hydrologic hazards that could impact the site.

· Hazards may include but are not limited to tornadoes, extreme storms, flash flooding, or potential for post-fire flooding as wildfire risk increases.

· Use the most current climate forecasting models in the assessment.

iii. Assessment of landslide or other ground instability hazards that could impact the site.

· The assessment will include existing active and dormant mapped slides. It would include potential for slope instability that would trigger a landslide.

iv. Assessment of potential for debris flow impacts.

v. Assessment of potential for topographic amplification during seismic event.

vi. Assessment of potential for rock fall impacts – static, seismic, freeze/thaw, exfoliation.

vii. Assessment of potential for hazards from nontypical sources including but not limited to volcanic related impacts such as mud flows, sink holes, thawing permafrost.

viii. Assessment of manmade hazards including but not limited to a dam upstream, active, and abandoned mining infrastructure.

c. Prepare a report stating all findings. This report must be signed and stamped by the responsible and licensed geotechnical engineer, geologist, or hydrologist.

d. If the site is deemed viable to proceed, a geotechnical investigation is then required

3. Geotechnical Investigation

a. When planning the geotechnical investigation, IBC provisions, state and local ordinances must be adhered to.

b. Review available information including but not limited to ordinances, nearby geotechnical studies, soils data, geologic data, geomorphic information, groundwater data, earthquake de-aggregation data, and VS 30 data.

c. A licensed geotechnical engineer will be responsible for planning and determining the extent of the Phase 1 investigation.

d. Plan the scope of the Phase 1 geotechnical exploration program after assessing available information.

e. Plan the exploration program in two phases to save on cost and determining the need for more extensive investigations.

f. Phase 1 involves low-cost testing. Depending on site conditions the testing may include:

i. Excavated pits

ii. Seismic cone penetration testing (CPT) with pore pressure measurements. Minimum of two CPTs per site to a minimum of twenty feet or refusal. All cone data, automated soil interpretations, and calculations will be provided.

g. Geophysics investigation. Shear wave velocity testing, 2D refraction, and P wave, VS 30 will be calculated.

h. The investigation will include an interpretation of the soil profile, bedrock delineation, and location of groundwater.

i. 2D representations of soil profile shall be spatially consistent with plan view of geophone alignment.

j. Testing of materials as required – classification, gradation, compaction curve, plastic limits, consolidation test.

k. Identify other natural hazards that may be present on the site such as Radon, Arsenic etc.

l. A licensed geotechnical engineer will determine if additional information is required through a Phase 2 investigation before final recommendation can be made.

m. Forward justification, including details, for the Phase 2 investigation to the CO prior to proceeding.

n. If a Phase 2 investigation is conducted, the Phase 1 report will remain in draft until the completion of the Phase 2 investigation.

4. Geotechnical Report must include but is not limited to the following:

a. Detailed results and recommendations

b. Recommendations for additional data acquisition

c. a risk matrix with credible potential hazards on one column and relative risk on the other

d. qualitative and/or semiquantitative analysis

e. analysis conducted in support of recommendations

f. detail the justification of each risk level for each hazard.

g. The responsible and licensed professional, engineer, geologist, or hydrologist will stamp and sign the report

h. include all that is required for:

i. foundation recommendations

ii. pavement recommendations

iii. site excavation

iv. grading

v. backfill recommendations

vi. backfill pressures

vii. bearing capacity

viii. site drainage

ix. groundwater impact abatement

x. site improvements to rectify any identified deficiencies

xi. all other pertinent information required for the project.

i. Final reports, both Phase 1, and if required Phase 2, must be signed and stamped by a licensed geotechnical engineer.

Building Code Requirements

Meet or exceed the requirements of the most recently adopted editions of the following codes:

1. ADA, ABA

2. Building Energy Efficiency Standards, CCR Title 24

3. National Electric Code (NEC)

4. National Electric Safety Code

5. International Fire Codes

6. International Existing Building Code

7. International Building Code (structural)

8. International Building Code (fire/life/safety)

9. Uniform Mechanical Code

10. ASHRAE/IESNA Standard 90.1, Energy Standard For Buildings Except Low Rise Residential Buildings

11. Uniform Plumbing Code

12. NFPA 13

Plumbing Requirements

1. All plumbing shall minimally meet the Uniform Plumbing Code (UPC). The number of plumbing fixtures shall be minimally based from the UPC, Table 4-1. All plumbing fixtures shall be white vitreous china with minimum flow valves and faucets. All sinks, showers and lavatories shall have hot and cold water piped to them. All fixtures, valves and appurtenances shall be listed by IAPMO, UL or other recognized testing laboratories.

2. Water Piping: Hot and Cold water shall be piped with PEX. All pipes shall be insulated. Installing water pipe into cavities of exterior walls shall be kept to a minimum. Install water pipes and fixtures in walls, which are in conditioned spaces as much as possible.

3. Drain Waste and Vent System (DWV) system piping system shall be hubless cast iron pipe with shielded couplings or ABS, whichever provides greater overall benefit to the project.

4. Gas piping shall be schedule 40 black iron pipe and fittings.

5. Water Heater should be a high efficiency (93% or greater) condensing type. If solar domestic hot water systems are installed, consider a reverse cycle chiller for back-up use. This will reduce fossil fuel consumption.

6. Any external hose bibs will be designed to withstand 15 degree F.

Mechanical Requirements

The mechanical and lighting systems should be designed to complement/facilitate the sustainable design intent and the other major design goals/federal requirements. Close coordination with the architect and energy consultant will be required at all stages of the feasibility studies and the design. The following should be considered and implemented as required to maximize sustainability in the most cost-effective manner.

1. Natural ventilation should be incorporated. Consider a range of energy efficient heating and cooling systems for the building that are appropriate for the Mediterranean climate of hot dry summers and cool wet winters.

2. If radiant or other “non-fan” based technologies cannot meet 100% of the building loads, consider very efficient heat pumps with ECM fan motors for ease of zoning, and efficient blower operation. If dedicated outdoor air systems are used, the heat pump fan coils should be modeled with intermittent fan operation. If dual fuel systems are economically justified, natural gas is available at the site.

3. Provide the plumbing necessary to add humidifying capabilities to the heat circulation system.

4. Control systems should be simple, with some occupant input required. An integrated building management system (DDC) is probably not warranted or cost effective for a facility of this size. Operational simplicity is a primary concern when selecting systems. HVAC controls that allow for a banded range for heating and cooling to save energy without need for a full EMS are encouraged for this project.

i. Occupant interaction is certainly acceptable to achieve this goal, with systems that are easily understood. Sophisticated building control systems which require extensive commissioning and subsequent recommissioning are neither desirable nor typically cost effective for a building of this size. If building automation systems are determined to be absolutely necessary, the design requirements for these systems are extensive. Detailed specifications for all control system components must be included along with local network requirements. The sequence of operations, points lists, control schematics, control logic diagrams and related details must be designed to a level which requires NO deferred design by the control contractor.

5. All mechanical systems should be designed for ease of maintenance. Equipment should be located in mechanical rooms, mezzanines, or similar areas with easy access and ample service clearance.

Electrical Requirements

1. Codes and Standards

The design shall meet the requirements of the most recently adopted edition of the National Electrical Code. In addition to National Electrical Code requirements the design shall meet the requirements of the National Electric Safety Code, the standards of the National Electrical Manufacturer's Association, and State and local codes and ordinances. When codes or ordinances conflict, the more stringent standard shall apply. Wherever possible, without sacrificing safety or security concerns, utilize lighting that will minimize off-site fugative lighting effects.

2. Distribution - Power:

A. General:

i. Coordinate with local service provider for new electrical service required.

ii. The main service facilities shall be enclosed and of the locking type. The enclosure shall not be used for storage or other purposes and shall have a door(s) fitted with an automatic deadlocking bolt with a minimum throw of 1/2 inch (1.27cm). Main power distribution switchboards and panelboards shall be circuit breaker type. All distribution panelboards shall be supplied with an equipment grounding buss. Power distribution equipment shall have a rating of at least 115% of the connected and projected loads, and shall have a minimum of 15% future circuit capacity.

iii. Flush mounted electrical panels shall have a minimum of two spare 3/4 inch raceways stubbed into accessible ceiling in areas with suspended ceilings, to accessible attics in areas without suspended ceilings, or to crawl spaces in areas with no accessilbe ceilings.

iv. All electrical raceways shall have an equipment grounding conductor installed and sized in accordance with the 2020nec NEC 250.122, unless specified otherwise.

B. Branch Circuits:

i. All branch circuit neutral conductors of multiwire branch circuits serving receptacle and lighting loads shall be a minimum of #12 AWG for 15 ampere circuits and #10 AWG for 20 ampere branch circuits.

ii. Branch circuits containing isolated grounding conductors shall have individual neutral conductors provided for each circuit. Multiwire branch circuit common neutrals will not be allowed. Feeder neutral conductors, where the feeder contains an isolated grounding conductor, shall be sized at a minimum of 150% of the circuit conductors or feeder overcurrent protective device. All panels containing isolated grounds shall have their neutral busses rated a minimum of 150% of the panel ampere rating.

C. Receptacles and switches:

i. Receptacle and switch cover plates shall be ivory. If floor outlets are required by the Government and floor outlet cover plates shall be metal and shall have hinged self-closing covers.

ii. Receptacle outlets and light switches shall be identified as to the panel and circuit number from which they are served. The panel and circuit number shall be neatly printed on the inside of the cover plate with a printed label. Junction boxes shall identify all circuits within the box and shall have the panel and circuit number(s) neatly printed on the outside of the cover plate.

iii. All electrical receptacles shall be of the grounding type. General receptacle outlets shall be duplex and shall be rated 15 or 20 amperes, 125 volt. In general, private offices; open office areas; conference rooms and similar areas; outlets shall be spaced at maximum 8 foot intervals (installed so that no point along the floor line in any usable wall space is more than 4 feet measured horizontally from an outlet). In computer rooms and telecommunication rooms outlets shall be spaced at maximum 6-foot intervals. In corridors outlets shall be spaced at maximum 30-foot intervals. In storage areas outlets shall be spaced at maximum 10-foot intervals. In restrooms and janitor closets there shall be a minimum of one outlet. In mechanical, electrical and utility type rooms there shall be a minimum of one general-purpose outlet in addition to outlets provided for equipment within the area. In lunch rooms, and similar types of rooms where counter space is provided for food preparation, coffee pots, microwaves and refrigerators, outlets shall be spaced at maximum 4 foot intervals. Where the counter space is 5 feet in length or less a minimum of two duplex or one quadplex outlet shall be provided above the counter space.

iv. Electrical receptacle circuits shall be separate from lighting circuits. General duplex receptacle circuits shall be 20 amperes. In private and open office areas there shall be a maximum of 6 duplex receptacles connected to a circuit. In computer rooms and telecommunications rooms there shall be a maximum of 4 duplex receptacles connected to a circuit. In lunch rooms, conference rooms and similar types of rooms where counter space is provided for food preparation there shall be a maximum of 2 duplex receptacles connected to a circuit and there shall be a minimum of two circuits provided above the counter.

v. Rooms that are wider than 20 feet with suspended ceilings shall have outlet junction boxes provided above suspended ceilings on a 15-foot by 15-foot grid with no outlet closer than 10 feet to any wall. Rooms wider than 20 feet with hard ceilings are exempt from this requirement.

vi. Floor mounted outlets shall be provided in the large conference room. If floor outlets are provided in a room or area the requirement for a ceiling junction box grid in that area may be omitted.

vii. Electrical receptacles located above restroom counters or adjacent to lavatories; in lunch or coffee counter areas where located above the counter; on building exteriors or above a warehouse workbench shall be GFCI (ground fault circuit interrupter) type receptacles, not GFI circuits. Receptacles located adjacent to another GFCI type receptacle and on the same circuit, such as above a counter or workbench, may be allowed to be GFP (ground fault protected) and shall be so labeled.

viii. Where receptacles are required to be isolated grounding type, the receptacles shall have orange fronts and be an isolated grounding type of receptacle where the grounding conductor connection is not connected to the receptacle mounting strap or yoke. The isolated equipment grounding conductor shall be factory insulated and terminate at the distribution panel serving the outlet on an isolated grounding buss which is insulated from the panel frame. Only isolated grounding conductors shall be connected to this buss. The isolated grounding feeder conductor shall be insulated and isolated from the normal ground system and shall terminate on the grounding buss at the main electrical service disconnect or the main disconnect of a separately derived system. Where equipment grounding conductors and isolated grounding conductors are present in the same raceway, box or enclosure they shall be readily identified and distinguished from each other.

4. Building Power Surge Protection:

A. The building electric main service panel shall have surge protection installed that will withstand a maximum surge of 80,000 amperes for services of 200 amperes or less, and a maximum surge of 160,000 amperes for services over 200 amperes. The surge device shall provide a clamping level of 400 volts for 120/208 or 120/240 volt systems and 800 volts for 240/480 or 277/480 volt systems in accordance with UL 1449 and ANSI/IEEE C62.41-1991. The surge protection device shall suppress disruptive electrical noise and low-level transients with a UL 1283 listed EMI/RFI filter. The surge protection device shall provide visual indication of the operational status of the device and indicate when the unit can no longer provide protection at the specified levels. The surge protection device shall protect all modes; line to line, line to neutral, line to ground, and neutral to ground.

B. Surge protection provided at distribution sub panels of 120/240 or 120/208 volt distribution, where required, shall provide surge protection that will withstand a maximum surge of 40,000 amperes and provide a clamping level of 330 volts in accordance with UL 1449 and ANSI/IEEE C62.41-1991. The surge protection device shall suppress disruptive electrical noise and low-level transients with a UL 1283 listed EMI/RFI filter. The surge protection device shall provide visual indication when the device can no longer provide protection at the specified levels. The surge protection device shall protect all modes; phase, neutral and ground.

C. Distribution subpanels serving the computer room and telecommunications room shall have surge protection installed.

D. Surge protection equipment installed at electrical main service panels and distribution subpanels shall be of the same manufacturer.

E. Point of use Surge or UPS protection for plug-in equipment, both electrical, telephone and data, will be provided and installed by the Government.

Distribution - Lighting:

1. General:

A. The whole building lighting power density (LPD) shall not exceed 1.0 watt/square foot. In order to meet the energy efficiency goals, the adjusted whole building LPD will probably be much less, and the general illumination LPD may be in the order of 0.5 to 0.7 watts/square foot. Light levels shall be measured at 30 inches above floor level in general office areas and at floor level in computer, telecommunication, utility, mechanical and storage rooms, restrooms, corridors, warehouses and parking areas.

B. All light fixtures shall be LED.

C. Exterior general or security lighting shall be with LED type fixtures.

D. Light switches shall be located on walls or columns at entry locations to areas. Where doors access a office, corridor, or area switches shall be located adjacent to the strike side of the door. Where there are several entry locations to a office, corridor or area switches shall be located at each entry.

2. Light Levels

A. Tee bar ceilings and troffer light fixtures should be avoided if at all possible. General lighting systems should be indirect type with very low watt density. Fixture efficacy should exceed 90 lumens per watt. Task lighting systems will typically be included, but should not be necessary to overcome excessive natural light.

B. Light levels in general office areas shall be approximately 40 foot-candles maintained. General illumination levels may be reduced below this level with high efficiency task lighting incorporated into the design. Task lighting must include local area occupancy sensors for off control. In restrooms, storage rooms, corridors and warehouses light levels shall be a minimum of 20 foot-candles maintained. Light levels in utility and mechanical rooms shall be 50 foot-candles and fixtures shall be located to provide light on the equipment, equipment controls and equipment service areas.

C. In conference rooms light levels shall be multi-level and shall provide light levels of approximately 20, 40 and 60 foot-candles maintained. Computer rooms and telecommunication rooms shall have dual light levels of 35 and 70 foot-candles maintained.

D. Lobby and reception area light levels shall be approximately 20 foot-candles. Reception area counters or work areas shall have approximately 40-50 foot-candles provided at counter level or work area height. Workbenches, laboratory counters and similar shall have approximately 70 foot-candles provided at bench or counter level.

E. Parking areas and walkways shall have a minimum of 2 foot-candles with an average of 5 foot-candles maintained for general parking. Where parking or walkways approach building entrances and walkways around building exteriors light levels shall be 10 foot-candles maintained.

3. Lighting Requirements:

A. Emergency lighting shall provide a minimum of 1 foot-candle of illumination throughout the exit path, including exit access routes, exit stairways, and all required building exits when operating in the emergency mode. Emergency exit signs and emergency exit passageway light fixtures shall be connected to a backup power source to provide emergency illumination during loss of normal or commercial power.

B. Daylighting with daylighting controls. Provide daylit areas in almost all office occupancies. Open office spaces should be designed for 100% coverage. Daylighting systems shall be carefully designed to not over illuminate spaces or cause glare. Building lighting systems shall be designed to complement daylit areas and shall not be required to compensate for excessive natural light. Auto dimming or daylight controls should be included in open office spaces, even if less than 250 square feet, and where applicable to maximize energy savings and minimize required occupant input. Consider manual-on, occupancy-off controls for smaller offices. Use task lighting extensively to reduce general illumination lighting.

C. In offices or work areas less than 100 square feet light fixtures shall be controlled by a ceiling mounted motion sensor with a wall switch to turn “off” the lights. If the area is provided with multi-level switching the sensor shall control all levels and individual wall switches shall turn “off” each level.

D. In offices or work areas 100 square feet and larger light fixtures shall provide dual-level or multi-level lighting. The area shall be controlled by ceiling mounted motion sensor(s) with individual wall switches to turn “off” each level or area within the area of coverage of an individual sensor. If multiple motion sensors are used in large open areas the sensors shall be located so that one person will not activate more than two sensors at any one location.

E. Where multi-level or dual level lighting is required the light levels can be provided by switching individual ballasts within each fixture, by switching groups of fixtures to provide uniform lighting throughout the room or area, or by dimming. Where dimming is used with fluorescent fixtures the ballasts shall be full range dimming ballasts (1% to 100%) without striation or flicker at any level and shall be inaudible with no buzz or humming.

F. Restroom and storage area lighting shall be controlled by Passive Infrared (PIR) motion sensors. Sensors shall be mounted so that all areas of the restroom are covered.

G. Parking areas and building entrance areas shall be provided with two switchlegs for control of each fixture or group of fixtures. One switchleg shall be photocell controlled to provide "dusk to dawn" operation. The second switchleg shall be a combination of photocell and timeclock operation to provide "on" at dusk (photocell) and "off" at a preset adjustable time (timeclock).

4. Accessibility Requirements:

A. Switches, receptacles and other electrical installations shall be installed in accordance with accessibility requirements.

Data/Communications

1. Codes and Standards A. All design and construction of the Data/Communications systems installed in the building must meet the current adopted building code requirements.

B. Close coordination with the Forest Service Chief Information Office Facility Move Team and that team’s specifications will be required by the A&E/Contractor. A template specification will be provided to the A&E contractor at time of award. Network system costs (including routers, switches,) for a network system sufficient to support the business requirements of the new facility, and the design and implementation of a cabling system to support the data/voice/radio/VTC/TV and business requirements of the new facility will be part of the contract.

Sierra NF – Batterson & Jerseydale New Construction February 25, 2024