ATTACH__14_-_DARBDesignGuideAug2011.pdf

August

Dobbins Air Reserve Base Design Guide

94 MSG/CEC

ATTACHMENT #14

Purpose & Summary The following design standards outline a consistent level of quality and style for all faci li t ies at Dobbins

Air Reserve Base (ARB). These standards provide a reference for everyone involved in base design, const ruction and planning. Dobbins ARB has initiated efforts aimed at the comprehensive planning of future base facilities and needs. The Base General Plan deals with broad-scope planning issues along with the 2010 Facility Operations Capability and Utilization (FOCUS) Survey. This document should be used in conjunction with, and complement the intent of these existing, active planning documents and detai l standards.

All facilities are now required to meet Force Protection Requirements for anti -terrorism. In addition, all designs must meet the requirements of: the Uniform Building Code (UBC); the Americans with Disabilities Act Accessibility Guide lines (ADAAG), Uniform Federal Accessibility Standards (UFAS).

These Design Compatibility Standards must be used by all individuals involved in base planning, design and construction. The success of any design standard is dependent upon implementat ion and enforcement. It is the responsibility of each design professional working at Dobbins ARB to adhere to the design framework presented in these guidelines. Perhaps more importantly, it is the responsibility of the reviewing agencies, particularly at the base level, to enforce the guidelines.

All tenant units at Dobbins ARB are required to comply with the architectural, landscape, exterior sign age and engineering sections of this document. Any deviations from the standards listed in th is document must be approved by the 94"1 AW Base Civil Engineer (BCE). Waivers to these standards may be requested through the Engineering Flight Chief.

BIJAN RAOUF

Chief, Design & Construction

KEllYS. C ESS Chief, Engineering Flight

KEiSNrniw.WiWAM ( Base Civ il Engineer

1 I Dobbins ARB Design Guide August 2011

2 Dobbins ARB Design Guide August 2011

Table of Contents Purpose & Summary

Table of Contents

1 Architecture

1.1 Objective

1.2 General Design Guides

1.2.1 Roofs

1.2.2 Exterior Walls

1.2.3 Trim

1.2.4 Windows/Doors

1.2.5 Paint/Finishes

1.3 Visual Districts

1.3.1 Flightline District

1.3.2 Flightline Facilities

1.3.3 Industrial/Base Support Visual District

1.3.4 North Base District

1.3.5 Community District

1.3.6 Recreation District

1.4 Signage

1.5 Interior Design

2 Landscape

2.1 Dobbins ARB Approved Plant List

2.1.1 Hardy and relatively pest‐free

2.1.2 Regionally native or indigenous

2.1.3 Minimal maintenance and irrigation

2.1.4 Readily available

2.2 Dobbins ARB Approved Plant List

2.3 Dobbins ARB Inert Material List

2.4 Dobbins ARB Approved Irrigation Standards

3 Civil Engineering

3.1 Construction Documents

3.1.1 Site Plan

3.1.2 Street Plan / Profile Sheets

3.1.3 Grading / Drainage Plan

3.1.4 Storm Drainage Profile Drawings

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3.1.5 Utility Plan

3.1.6 Sanitary Sewer Profile Drawings

3.1.7 Erosion Control

3.1.8 Construction Details

3.1.9 Hydrology Study

3.1.10 Roadways

3.1.11 Parking Facilities

3.1.12 Sidewalks

3.1.13 Storm Drainage System Design

3.1.14 Storm Water Management (Detention)

3.1.15 Sanitary Sewer Design

3.1.16 Erosion Control

4 Electrical

4.1 Design Analysis

4.2 Drawings

4.3 General Standards

4.4 Underground

4.5 Aboveground

4.6 Interior

4.7 Lighting

5 Mechanical

5.1 Building Envelope

5.1.1 Vapor Barriers:

5.1.2 Insulation

5.2 Plumbing

5.2.1 Fixtures

5.2.2 Service

5.2.3 Flow Tests:

5.2.4 Water Utilities

5.2.5 Gas Utilities

5.3 Heating, Ventilating, And Air Conditioning (HVAC)

5.3.1 Equipment:

5.3.2 Climate

5.3.3 Free cooling and Economizers

5.4 Controls & EMCS

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5.4.1 Controls

5.4.2 Energy Management and Control System (EMCS)

5.4.3 JACE functions

5.4.4 Certificate to Operate (CTO)

6 Fire Protection

6.1 Design Analysis

6.2 Water

6.3 Alarm Systems

6.3.1 Panel

6.3.2 Pull Stations

6.3.3 Transponders

6.3.4 Sprinklers

6.4 Fire Detection Systems

6.5 Fire Suppression Systems

7 CADD & GIS

7.1 GIS Requirements

7.2 CADD Requirements

7.3 Survey Data

7.4 Coordinate System

7.5 Deliverables

7.6 Record (As‐Built) Drawings

8 Miscellaneous

8.1 Key System

8.2 Cores

8.3 Keys

9 Permits & Waivers

9.1 Dig Permits

9.2 Land Disturbance Permit

9.3 NPDES Permit

9.4 Wetland & 404 Permitting

9.5 Airfield Construction Waiver

Appendix A: Dig Permit ................................................................................................................................. A

Appendix B: Erosion, Sedimentation, & Pollution Control Plan ................................................................... B

Appendix C: Utility Cut Detail ....................................................................................................................... C

5 Dobbins ARB Design Guide August 2011

1 Architecture Many design techniques can be utilized to improve the quality of life for a building’s occupants, reduce energy consumption, reduce maintenance requirements, and enhance the aesthetics of the built environment.

1.1 Objective

Unify all the industrial buildings with common colors, form and materials.

Ensure all future facility designs continue to strengthen a common architectural theme.

Create common outdoor activity areas to be shared among grouped buildings.

Establish consistent visual screening methods for outdoor storage yards and exposed utilities.

Consolidate outdoor storage areas wherever practical.

Develop the Industrial/Base Support District to relate favorably to the Administrative and North Base Districts.

Architectural elements which establish the physical appearance and character of visual districts and individual buildings include:

Type and application of materials.

Use of color and texture.

Relationships of project siting to adjacent facilities.

Appropriate screening of mechanical equipment and dumpsters.

Established standards for signage and exterior lighting.

Commonality of facility form indicating function (i.e. Flightline facilities).

1.2 General Design Guides

1.2.1 Roofs

Roofs should be consistent throughout the base. In most cases administrative, industrial/base support and flight line building roofs should be standing seam metal. Provide standing seam metal roof systems when possible with pitched angles consistent with surrounding buildings. There may be cases where a sloped room may not be possible, then a low slope roof with TPO or PVC roofing should be considered.

Other factors that will determine roofing material are scale of the building and adjacent building materials.

1.2.2 Exterior Walls

The following are acceptable façade materials: brick, split face CMU block, painted CMU Block, metal wall panels/siding, exterior insulation and finish systems (EIFS) to simulate stucco, or compatible glass curtain wall systems.

1.2.3 Trim

Trim should be metal and finished to blend with adjacent materials. Aluminum is currently being used effectively on many facilities and is appropriate for new construction.

1.2.4 Windows/Doors

Blast proof windows/doors are mandatory for existing inhabited buildings within any planned window or door glazing replacement project, regardless of whether that project meets the 50% cost trigger above.

Such replacements may require window frame modification or replacement. Refer to UFC 4‐010‐01, DoD Minimum Antiterrorism Standards for Buildings. Use anodized aluminum of a complementary color

6 Dobbins ARB Design Guide August 2011 for windows, doors, handrails, etc. All windows will have an anodized aluminum frame with Low‐E tinted glass.

1.2.5 Paint/Finishes

Robins 62: Contrast Color: Standing Seam Roofs, Metal Fascia, Gutters, Metal Doors/Door

Frames, Main entrances, Handrails, Lamp Posts, Site Elements, Infrastructure Elements, Secondary exterior entrances, metal doors, and roll up doors and frames (including windows, Glass curtain wall systems frames ) on brick buildings should be pre‐finished or painted, Metal coping and fascia at parapets on low slope roof systems.

Robins 68: Hangars/ corrugated metal siding on buildings.

Robins 48: Secondary exterior entrances, metal doors, roll up doors, and frames (including windows) on metal sided buildings should be pre‐finished or painted.

Robins 38: Highlight Color: (Optional) Garrison.

Robins 68/48: Accent Color: Contrast Color for Large Buildings, Option for Small Doors, Window and Door Frames, Trim, Transformers, Mechanical Building Elements.

All block, brick, and pre‐cast concrete on new facilities and buildings under renovation should match in color with Bldg 600.

1.3 Visual Districts

Dobbins Air Reserve Base includes several distinct Visual Districts. They include:

Administrative Areas: Buildings 600, 727, 729, 732, 741, 812, 827, 837

Flight Line: Buildings 554, 555, 731, 733, 744, 745, 746, 747, 807, 819, 826, 829, 831, 838, 840, 920, 922, 931, 935, 940, 945, 965

Industrial/Base Support Areas – Buildings 501, 510, 516‐519, 700, 701, 728, 748, 810

North Base: Buildings 401, 410, 440, 486

Community Area: Buildings 530, 558, 559, 560, 800, 801, 802, 806, 813, 550

Recreation: 537 (Lakeside Facilities)

In the event that a building site is selected within any of these areas, proposed facility function and the adjacent Visual District should be considered when determining the architectural compatibility standards that should be followed.

1.3.1 Flightline District

The intent in the Flightline District is to allow the facilities to fade into the background so as to minimize visual clutter or confusion. The use of bright colors or the introduction of a new contrasting color is strongly discouraged.

All gutters on brick buildings will match Sherwin Williams “Robins 62” in color.

All gutters on metal clad buildings shall match Sherwin Williams “Robins 42/Robbins 62” in color.Recommend that all corrugated metal siding on buildings match Sherwin Williams “Robins 42” in color to eliminate visual clutter and keep a consistent look with other surrounding buildings and across the base.

1.3.2 Flightline Facilities

The main building materials used in the flightline district are red brick and corrugated metal siding.

However, the brick at the new GCA, Building 739, has Dark Grey Wire Cut (brick style 763) for the face brick from North Georgia Brick Co. The color of the materials used along the flightline depends on the adjacent facility. However, metal siding and CMU will be colored to match the rest of the base.

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The prevailing materials should represent the nature of a military flightline and its mission. On large buildings such as hangars, the predominant wall material will be corrugated metal siding with red brick accents. On smaller maintenance/administrative buildings within this district the walls should be predominantly red brick depending on the adjacent facility.

All main entrances to administrative functions shall have an anodized aluminum store front system with insulated glass. Main entrances to the maintenance functions should use a painted metal door and frame.

All secondary exterior entrances and mechanical rooms shall have metal doors and frames. All exterior doors (not including mechanical rooms), shall have a door closer, panic hardware, weather strips and door sweeps.

1.3.3 Industrial/Base Support Visual District

This district is comprised of five separate locations. There are four small areas to the south of runway and one to the north. The north support district is largest of the five and should be given special attention when constructing new or renovating existing buildings. The north area is bounded by Lockheed Martin to the north and Atlantic Avenue to the south.

Materials should reflect an inviting atmosphere for a business setting.

All main entrances to administrative functions shall have an anodized aluminum store front system with insulated glass. Main entrances to the maintenance functions can use a painted metal door and frame.

All secondary exterior entrances and mechanical rooms shall have metal doors and frames.

All exterior doors (not including mechanical rooms), shall have a door closer, panic hardware, weather strips and door sweeps.

All windows will have an anodized aluminum frame with Low‐E tinted glass. Do not use glass block as a predominant feature or window since it has minimal insulating valve and visibility. However, glass block can be used less extensively to give added interest to the exterior as well as for natural day lighting in a clerestory application.

Use a combination of split faced block, fluted block, brick, and pre cast concrete on exteriors of all buildings. Corrugated metal siding can be used for large warehouse spaces as long as they these buildings do not carry an administrative function. Although not included within this visual district, new facilities and those being renovated shall adopt the color and type of block work used on Bldg 600 and Bldg 866. Stucco may be used on a limited basis for detail purposes only.

1.3.4 North Base District

This district is located north of base on the other side of S Cobb Drive (State Highway 280). It is bordered by heavily wooded areas to the east and west and S Cobb Drive (Highway 280) on the south.

All main entrances shall have an anodized aluminum store front system with insulated glass.

All secondary exterior entrances and mechanical rooms shall have metal doors and frames.

All exterior doors (not including mechanical rooms), shall have a door closer, panic hardware, weather strips and door sweeps.

All windows will have an anodized aluminum frame with Low‐E tinted glass. Do not use glass block as a predominant feature or window since it has minimal insulating valve and visibility. However, glass block can be used less extensively to give added interest to the exterior as well as for natural day lighting in a clerestory application.

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Use a combination of split faced block, fluted block, brick, and precast concrete on exteriors of all buildings. Stucco may be used on a limited basis for detail purposes only.

Provide standing seam metal roof systems when possible.

In the case where metal standing seam roofs are not possible, TPO or PVC roof will be used.

In limited cases, metal siding, stucco or Exterior Insulation Finishing Systems (EIFS) can be used but should match the context and character of the Visual District.

1.3.5 Community District

The Community District is located in three primary areas of the base. All three areas are accessed by the Main Gate and Atlantic Avenue, the main thoroughfare for base. The eastern area is centered on the existing Visitor Quarters and Consolidated Club and bordered by Barracks Drive, just west of the Main Gate. The central area is centered on the Medical Clinic and includes the existing Services facilities. This area is generally bordered by Atlantic Avenue to the northeast, 5th Street on the west, and bisected by 4th Street, with the Services facilities to the south. The western most area is centered around the AAFES Base Exchange (BX). This area is bordered by Industrial Drive to the northeast and Atlantic Avenue on the south.

Although many different systems are used for these buildings, the predominant construction scheme uses brown brick. This should be the standard used for new facilities.

Accent colors can be used to highlight key spaces and entrances.

1.3.6 Recreation District

The Recreation Visual District is centrally located on the base on Atlantic Avenue, the major axis from the Main Gate. This Visual District is bordered by 4th and 5th Streets to the east, the Big Lake and Flight Line to the west and south, and Atlantic Avenue to the north.

The building consists of wood siding on a wood frame building. All architectural elements such as screening are also wood which match the context and character of the Visual District.

Roof system consists of gable with asphalt shingles.

All future structures should match existing materials.

Exterior colors in the Recreation District are primarily earth tones; tan, brown, warm gray, and green.

The walkways should be exposed gray concrete. Screen walls and pedestals are buff colored plaster or concrete.

1.4 Signage

Base signage should meet base and applicable Air Force standards to include the Air Force Design Standard Unified Facilities Criteria (UFC 3‐120‐1, Feb 2003). Taping temporary signs or notices on doors, walls, or windows is prohibited and should be dealt with as facility abuse. Use consistent interior signs that can be easily changed. Keep the number of signs to an absolute minimum to eliminate visual clutter.

1.5 Interior Design

Base signage should meet base and applicable Air Force standards to include the Air Force Design Standard Unified Facilities Criteria (UFC 3‐120‐1, Feb 2003). Taping temporary signs or notices on doors, walls, or windows is prohibited and should be dealt with as facility abuse. Use consistent interior signs

9 Dobbins ARB Design Guide August 2011 that can be easily changed. Keep the number of signs to an absolute minimum to eliminate visual clutter.

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2 Landscape As a minimum requirement, projects on Dobbins ARB shall conform to the following:

All projects, roads, parking lots and site modifications shall include compliant Dobbins ARB landscape development considerations and budgets consistent with this document.

All landscape development projects or landscape development in other construction or repair projects shall be designed or reviewed by a professional landscape architect or pre‐approved landscape designer.

All landscape development projects shall strive to minimize recurring maintenance requirements and focus on right‐sizing and properly locating appropriate plant materials selected from the Approved Plant List while minimizing shrubbery and groundcovers requiring maintenance other than occasional pruning or mowing in combination with naturalized and non‐turf areas dominated by native plant materials.

A pre‐approved portion of the project funding shall be specifically allocated for landscape development and shall only be used for that purpose.

All landscape development shall only use materials listed in the Approved Plant List and Approved Inert Material List as provided in this document.

No landscape development shall be irrigated beyond establishment of new landscape projects or plans.

All landscape development shall meet AT/FP landscape guidelines provided in this and other guidance documents.

2.1 Dobbins ARB Approved Plant List

An installation’s approved plant list identifies readily available and proven plant material for use in facility landscape design. Selected plant materials should complement and reinforce the installation architectural theme. The Dobbins ARB Approved Plant List documents trees, shrubs, perennials, grasses and groundcovers for use in landscape development projects. As the backbone of installation planting design, the list provides designers with a palette of desirable plant material that possess the following characteristics:

2.1.1 Hardy and relatively pest‐free

Hardy plants endure the temperature extremes of a specific region. Most plants are categorized based on the lowest temperatures they can endure without significant damage. Marginal plants should be avoided or sparingly used to ensure maximum long term value and performance while minimizing maintenance and possible replacement. Pest free plants are rare. Many plants can withstand natural influxes of common garden pests. Plant growers are constantly improving and developing species that are especially tolerant to disease and pests. Resistance to major diseases should be considered in choosing plants for the installation plant list.

2.1.2 Regionally native or indigenous

Regionally native plants are generally conditioned to the climate and soil of a particular region.

These plants tend to be drought tolerant and hardy. Use of native plants is highly desirable and should be a primary consideration when selecting plants for the installation's plant list. Plants that have been successfully introduced into a region are considered indigenous. These plants have proven their durability through years of use. Many of these plants have naturalized and have become widely used. Some plants may become invasive and displace desirable natives.

Characteristics of indigenous plants should be carefully examined prior to including them on the installation plant list.

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2.1.3 Minimal maintenance and irrigation

Maintenance and irrigation is costly. Plants that can thrive without supplemental water after establishment are highly desirable. Certain plants exhibit characteristics that create a need for maintenance and attention. For example, Century plant, a saw‐tooth bladed agave, grows to immense size only to bloom in a few years and die. Mexican fan palms require specially trained personnel and equipment to remove palm fronds as the plant matures. Installations should consider all these fixed, long term costs during the plant selection process.

2.1.4 Readily available

Plants included on the installation plant list must be readily available. Check with local or regional nurseries to ensure plants will be available in sufficient quantities to satisfy future landscape project needs.

2.2 Dobbins ARB Approved Plant List

Botanical Name

Common

N at iv e In d ig e n o u s

Ev e rg re e n D e ci d u o u s

M at u re h e ig h t (f e e t)

M at u re w id th fe t)

M in . p la n ti n g si ze

Ir ri ga ti o n r e q u ir e m e n ts

B ar ri e r

Sc re

A cc e n t

St re e ts ca p

A T/

FP

G o lf c o u rs

Trees

Acer buergerianum

Trident maple

I D 30 20 3” M • • • •

Acer rubrum Red maple I D 40 35 3” L • • • • Carpinus caroliniana

American hornbeam

I D 25 20 3” L • • • Cedrus atlantica Atlas cedar I E 70 30 3” L • •

Cercis canadensis

Eastern redbud

N D 25 18 3” L • • • Cornus florida Flowering dogwood N D 15 15 3” M • • •

Cupressocyparis leylandii

Leyland cypress

I E 50 25 2” L • • • • Carpinus caroliniana

American hornbeam

I D 25 20 3” L • • • Gingko biloba ‘Autumn Gold’

Maidenhair tree

I D 45 40 3” M • • • • Ilex × ‘Nellie R.Stevens’

Nelly R.

Stevens holly

N E 15 10 3” M • • • • Juniperus chinensis ‘Torulosa’

Hollywood juniper

I E 15 10 3” ML • • • •

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Liquidambar styraciflua

Sweet gum I D 35 15 3” L • • • • • Lagerstroemia indica spp.

Crape myrtle I D 20 15 2” M • • • Magnolia grandiflora

Southern magnolia

I E 35 50 3” L • • • • •

Pinus taeda Loblolly pine N E 65 25 3” L • • • • Pinus virginiana Virginia pine N E 35 20 3” L • • • • Pistacia chinensis

Chinese pistache

I D 30 40 3” L • • • Platanus occidentalis

Sycamore I D 65 65 3” M • • • Prunus caroliniana

Carolina cherry laurel

N E 25 20 2” L • • • • Prunus cerasifera ‘Atropurpurea’

Purple‐leaf plum

I D 25 25 3” M • • •

Quercus agrifolia

Coast live oak

N E 60 40 24 L • •

Quercus lobata Valley oak N E 45 40 15 L • • Quercus palustris

Pin oak N D 55 35 3” L • •

Quercus shumardii

Shumard red oak

I D 40 50 3” L • • • Quercus virginiana ‘Heritage’

Southern live oak

I D 25 25 3” L • • •

Sequoia sempervirens

Coast redwood

N E 95 30 3” L • • • Taxodium distichum

Bald cypress N D 40 25 3” M • • Ulmus parvifolia Evergreen elm I E 35 40 3” M • •

Shrubs

Abelia × grandiflora

Abelia I E V V 1 M • • •

Aucuba japonica Aucuba I E 4 5 1 M • •

Berberis thunbergerii spp.

Japanese barberry

I ED V V 5 M • • •

Buxus japonicum Japanese boxwood

I E 5 4 1 L • •

Buxus koreana Korean boxwood

I E 3 3 1 L • •

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Cotoneaster spp. Cotoneaster I ED V V 5 M •

Gardenia augusta ‘Radicans‘

Creeping gardenia

I E 2 3 1 M • •

Ilex vomitoria Yaupon holly N E 15 15 5 L • •

Juniperus chinensis ‘Armstrong’

Armstrong juniper

I E 5 5 5 L • • •

Juniperus chinensis ‘Pfitzerana’

Pfitzer juniper

I E 5 6 5 L • • • •

Juniperus chinensis ‘Sea Green’

Sea Green juniper

I E 6 8 5 L • • •

Myrtus communis ‘Compacta’

Dwarf myrtle I E 6 4 5 M • •

Nandina domestica spp.

Heavenly bamboo

I E V V 1 L • • • •

Osmanthus heterophyllus

Tea olive I E 5 5 5 L • •

Prunus ilicifolia Hollyleaf & Catalina cherry

N E V V 5 M • • • •

Pinus mugo var.

mugo

Mugo pine I E 2 4 1 M • • •

Raphiolepis indica spp.

Indian hawthorn

I E V V 5 M • •

Rhododendron All varieties N ED V V 1‐5 L • • • • Rhus ovate Sugar bush N E 6 4 5 L • • • Spirea spp.

Bridal wreath, etc.

I ED V V 5 M • •

Viburnum spp. Viburnum I ED V V 5 M •

Yucca gloriosa Spanish dagger

I E 8 6 1 L • • •

Yucca recurvifolia

Pendulous yucca

I E 6 6 1 L • • •

Groundcovers

Juniperus horizontalis ‘Bar Harbor’

Bar Harbor juniper

I E 1.5 3 3 L •

Juniperus horizontalis

Wilton carpet juniper

I E 1 3 3 M •

14 Dobbins ARB Design Guide August 2011

‘Wiltonii’

Juniperus sabina ‘Tamariscifolia’

Tam juniper I E 3 5 5 M • •

Ophiopogon japonicus

Mondo grass I E .5 1 1 L • •

Phlox subulata Moss phlox I E .5 .5 1 L • •

Grasses

Cynodon spp.

Bermuda grass

I ED

Festuca spp. Fescue I ED

______ spp.

Annual ryegrass

I

2.3 Dobbins ARB Inert Material List

Inert materials such as gravel, decomposed granite or river run stone are commonly used in the landscape with the intent of lowering maintenance and improving aesthetics. When properly incorporated, these materials work well to create an efficient, economical, and aesthetic design solution. The difficulty arises when these materials are installed without regard to long term maintenance requirements. The following issues must be considered when using the selected inert materials for Dobbins ARB:

Compatibility with architectural theme

Readily available

Proper installation and maintenance

Appropriate use

Descriptive

Trade

Si ze

C o lo r

D e p th

La d sc ap e e le m e n t

Er o si o n c o n tr o l

A cc e n t

R ip ‐r ap

Inert materials

Pine straw Locally available N/A N/A 2‐4” • •

River rock Local river run 3‐8” Various One layer • • •

Boulder Local ‘granite’ boulder 8‐27 CF Natural As detailed • • •

15 Dobbins ARB Design Guide August 2011

2.4 Dobbins ARB Approved Irrigation Standards

Along with appropriate landscape development there must be an efficient and fitting irrigation system standards to further ensure a quality installation of the future. Irrigation is the supplemental application of water to support intensive and regular plant growth. Successful irrigation systems consider the unique characteristics of the soil, climate, topography, and the quantity, quality, and availability of water as well as the specific plant material requirements. In the case of Dobbins ARB, no irrigation systems will be approved other than specifically‐required temporary ones to establish important landscape development projects.

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3 Civil Engineering

3.1 Construction Documents

The minimum information required shall be shown on all plans submitted for review and approval:

3.1.1 Site Plan

Project Name and Project Number.

Design Professional’s information.

Location / Vicinity Map.

North Arrow.

Scale Reference.

Buffers.

Area of project site.

Area of Disturbance.

Existing Conditions.

3.1.2 Street Plan / Profile Sheets

All traffic control devices, signs, and markings shall conform to the requirements of the

“Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), latest edition.

Provide plans and profiles for proposed streets and intersections.

Maximum scale shall be 1”=50’ Horizontal and 1”=10’ Vertical.

Identify street grades and vertical and sag curve lengths.

Show stopping distance and design speed requirements.

Provide typical roadway cross section and pavement details.

Provide Handicap ramps at all intersections, driveways, and curb encroachment locations.

Show existing, proposed grades, and appropriate spot elevations.

Identify curb type and transition locations; Include curb detail.

Main Roadway Markings shall be thermoplastic only.

3.1.3 Grading / Drainage Plan

Minimum two‐foot contours

Proposed and Existing contours

Drainage Area, Location, Size, and Length of Drainage Structures

Drainage Size Calculations

3.1.4 Storm Drainage Profile Drawings

Profiles prepared to a scale no smaller than 1”=50’ Horizontal and 1”=10’ Vertical.

Show existing and proposed grade.

Show storm event HGL line per design.

Open Channel design shall include a typical ditch section that provides a non‐erodible velocity at design flow specifying channel lining (i.e., grass, concrete, etc).

Pipe Material and bedding shall be specified.

At junction structures the Upstream Crow elevations shall match or be higher than that of the downstream crown.

3.1.5 Utility Plan

Minimum scale shall be 1”=20’; Maximum scale shall be 1”=100’.

17 Dobbins ARB Design Guide August 2011

Show proposed and existing contours.

Location, sizes, and materials of existing and proposed mains, backflow devices, valves, meters, service lines, fire hydrants, thrust blocks, and other appurtenances within the project area.

Specify method and tie‐in locations to existing mains.

If required per scope, show fire flow test results and pressure information for water mains.

Sewer lines within roadway shall have a minimum of 72 inches of cover.

Maximum depth of sewer line within roadway shall be 18 vertical feet.

Maximum depth of sewer line outside roadway shall be 25 vertical feet.

Maximum distance between manholes is 350 linear feet.

3.1.6 Sanitary Sewer Profile Drawings

Show existing and proposed grade.

Identify slope of sewer line from upstream manhole to downstream manhole.

Identify sewer in and out inverts.

Identify Manhole Rim elevation.

Sewer pipe shall have gravel bedding.

All tie‐ins to existing manholes shall be cored and require rubber boots that are approved by Civil Engineering.

3.1.7 Erosion Control

Identify sediment / erosion control practices per “Manual for Erosion and Sediment Control in Georgia”, latest edition.

Provide a schedule of construction activity showing start and completion dates along with sequence of activities.

Show Rip‐Rap design and sizes.

Identify construction entrance / exit.

Identify Clearing Limits.

Note: Mulch will be used as a temporary cover. Concentrated flow areas, all slopes steeper than 3:1 and with a height of ten feet or greater, cut and fill slopes within stream buffers shall be stabilized with the appropriate erosion control matting or blanket.

Note: BMPs shall be install and inspected prior to grading on site.

Note: BMPs shall be checked after each storm event.

3.1.8 Construction Details

Storm Drainage Details shall comply with the latest standards approved by the Georgian

Department of Transportation in Standard Specifications for Construction of Roads and Bridges, latest edition.

If roadway will be open‐cut for utility installation and/or repair provide Typical Street Cut Repair Detail (Appendix C).

3.1.9 Hydrology Study

Per the Energy Independence and Security Act Section 438, “Storm water runoff requirements for federal development projects. The sponsor of any development or redevelopment project involving a Federal facility with a footprint that exceeds 5,000 square feet shall use site planning, design, construction, and maintenance strategies for the property to maintain or restore, to the maximum extent technically feasible, the

18 Dobbins ARB Design Guide August 2011 predevelopment hydrology of the property with regard to the temperature, rate, volume, and duration of flow.”

The Engineer of Record shall determine, based on the most stringent requirements, to use EISA 438 or the Georgia Stormwater Manual, latest edition.

Provide narrative explaining the rationale and method used in design.

Show drainage area map identifying drainage basins and sub‐basins with flow arrows and acreage.

Provide summary showing pre‐development and post‐development flows for the 2‐, 5‐, 10‐, 25‐, 50‐, 100‐year storm events.

Stormwater must be managed to pre‐development rates.

3.1.10 Roadways

Dobbins ARB has one main collector (Atlantic Avenue) and several local streets. Construction and material specifications for Streets shall conform to UFGS and Georgia DOT Standard Specifications for Roads.

Lane Width – Minimum 12 foot travel lanes measured from edge of pavement.

Widening Roadways – Existing Slope shall be maintained throughout proposed section.

Intersection of roads or streets shall be no closer than 150’ measured from centerlines.

Angle of Intersection – Streets shall intersect at right angles if possible but not less than 75º for reasons approved by Civil Engineering.

Intersection Radius – Radii is measured from edge of pavement, if no curb exist, or back of curb and shall be a minimum of 30 feet if connecting to Atlantic Avenue. All other connections shall be a minimum of 25 feet.

Vertical Alignment / Intersection Approaches – Intersecting street grades shall not exceed 2% for a minimum of 25 feet.

Horizontal Alignment / Intersection Approaches – Intersecting streets shall have a tangent length of at least 30 feet measured from edge of pavement of the street that is being connected to.

Fire Department Access – If any segment of road is measured to be 150’ or longer a turn‐ around is required.

Minimum Grades – Minimum grades for all streets shall be 1.5%.

Maximum Grades – Maximum grades for Atlantic Avenue is 12%. All other streets and roads shall have a maximum grade of 14%.

Vertical Curves – Changes is street profile grades differing more than 1% shall be connected with a parabolic curve.

Stopping Sight Distance – Stopping Sight Distance is determined using an eye height of 3.5 feet and object height of 0.5 foot along with the design speed.

Horizontal Curves – Minimum Radius shall be 100 feet with a minimum Tangent length of 50 feet.

Light Duty Pavement Section – Minimum section shall include 6” GAB, 1.5” Binder, and 1.5” Type E Wearing Course.

Heavy Duty Pavement Section – Minimum section shall include 10” GAB, 4” Asphaltic Base, 2” Binder, and 1.5” Type E Wearing Course.

Curb and Gutter – Curbing shall be 3,000 PSI Class A concrete vertical curb measuring 6” x 30” x 12”. Half Inch Expansion Joints or Pre‐Molded Bituminous Expansion Material shall be installed at structures, radius points, and at intervals not to exceed 250 feet.

19 Dobbins ARB Design Guide August 2011

Striping – Striping shall comply with MUTCD.

Drainage – Where roadside ditches are used a culvert shall be installed at intersections.

Culvert shall be RCP with flared end sections and designed to accommodate the 10‐year storm event.

3.1.11 Parking Facilities

Parking Facilities on Dobbins ARB shall meet ATO requirements and shall include the following:

Parking Spaces shall be marked with white traffic paint.

90º spaces shall be no less than 162 SF with a minimum width of 8.5 ft and a 19 ft deep with a drive aisle of 24 feet wide.

60º spaces shall be no less than 176 SF with a minimum width of 8.5 ft and 20.67 ft deep with a drive aisle of 18.5 feet wide.

45º spaces shall be no less than 165 SF with a minimum width of 8.5 ft and 19.5 ft deep with a drive aisle of 13.5 feet wide.

3.1.12 Sidewalks

Newly constructed roads and streets on Dobbins ARB shall have sidewalks constructed:

Sidewalks shall be 5 ft wide minimum.

Concrete shall have a compressive strength of 3,000 PSI at 28 days.

Minimum concrete thickness shall be 4 inches.

3.1.13 Storm Drainage System Design

All Drawings and calculations must be signed and sealed by a design professional registered to practice in the State of Georgia.

Sizing and location of all drainage structures shall be the responsibility of the registered design professional.

Drainage Pipes shall be sloped to maintain a minimum of 3 feet per second to keep sediment collection at a minimum within the pipe.

Discharge velocities of 8 feet per second or higher will require energy dissipation in addition to the required outlet protection.

Unimproved swales and/or ditches shall have a minimum velocity of 5 feet per second

Drainage Pipes shall have a minimum slope of 1%.

Where Drainage Pipe slopes exceed 10% and 2% section of pipe is required prior to discharging.

Gutter spread shall be limited to 8 feet for the 10 year storm event.

3.1.14 Storm Water Management (Detention)

Per the Energy Independence and Security Act Section 438, “Storm water runoff requirements for federal development projects. The sponsor of any development or redevelopment project involving a Federal facility with a footprint that exceeds 5,000 square feet shall use site planning, design, construction, and maintenance strategies for the property to maintain or restore, to the maximum extent technically feasible, the predevelopment hydrology of the property with regard to the temperature, rate, volume, and duration of flow.”

The Engineer of Record shall determine, based on the most stringent requirements, to use EISA 438 or the Georgia Stormwater Manual, latest edition.

20 Dobbins ARB Design Guide August 2011

3.1.15 Sanitary Sewer Design

New Sewer Systems on Dobbins ARB shall be designed to accommodate peaked sewage flow plus anticipated maximum infiltration/inflow levels under open channel flow conditions. The pipe diameter and slope shall be selected to obtain the greatest practical velocities to minimize settling issues.

Sewer mains shall be at least 8” in diameter.

Sewer laterals shall be at least 6” in diameter and shall terminate with a cleanout assembly.

Sewer manhole spacing shall not exceed 350 LF.

Manholes within the 100 year Flood Plain shall have bolted down covers pre‐cast into the manhole cone and shall have water‐tight rings.

Manhole adjusting rings shall be metal within roadways.

Drop connections are required when invert difference is greater than 3 feet.

Manholes shall be stabilized with a minimum of 6 inches of crushed stone under the base.

Inflow lines shall connect to the manhole at 90º or greater.

Maximum slope shall be 20%.

Minimum slope shall be 0.5%.

Ductile Iron Pipe is required:

o Slope greater than 15%.

o Cover is less than 3 feet in open areas.

o Pipe crosses a storm line with less than 2 feet of cover.

o Pipe is within 1 foot of a storm line.

o Fill is greater than 18 feet.

o Cover is less than 6 feet under a roadway.

o Pipe crosses a creek or any other aerial crossing.

o All drop connection.

3.1.16 Erosion Control

For Dobbins ARB utilize the ‘Soil and Water Conservation Service’s Manual for Erosion and Sediment

Control in Georgia’ for the design and installation of ESPC measures.

21 Dobbins ARB Design Guide August 2011

4 Electrical

4.1 Design Analysis

Minimum requirements are as follows:

Short‐circuit and fault calculations study.

Voltage (V) drop analysis study.

Load calculations for new and existing.

Coordination study: a minimum of two, coordinated ground fault levels are required for 480V system, with electric service of 1000 AMP (A) and more.

Foot‐candle analysis. The goal is to achieve an illumination efficiency of 1.5 watts per square foot.

4.2 Drawings

Minimum requirements are as follows:

Electrical site plan, accurately scaled, showing the following.

All exterior electric from the pole to the pad‐mounted transformer to the electric service.

All communication lines.

Wire and conduit sizes.

Reflected ceiling plan.

Lighting plan.

Power plan, panel schedule showing minimum 30% spare space.

Communication (voice, data) plan with riser diagram.

Fire alarm plan with fire alarm riser diagram.

Details, showing grounding, trenching and backfilling, pad mounted transformers, and other details as required by the project.

Electrical power riser diagram, including wire and conduit sizes.

One line diagram showing new and existing, the coordination, and at least three fault points.

Load calculations and tabulations.

4.3 General Standards

New electric service: 480V and 208V, 3‐phase (Ø) service as required by the project. All new electric service shall be in the mechanical/electrical room. All service entrances shall be underground, from the high voltage poles, and shall be stepped down by using pad‐mounted transformers or overhead, from the high voltage poles, and shall be stepped down by using pole mounted transformers.

New facilities or major renovation projects shall include LCD‐style KWH smart meters for measuring energy consumption.

Provide standardized prewiring, receptacle, conduit, and ductwork for telephones, office automation equipment, and Energy Management Control System.

Primary voltage line: 12.5KV, 3‐ Ø, delta. Operated and maintained by Georgia Power Company.

Wire size: Minimum wire size shall be No. 12 AWG copper in ½‐inch diameter conduit per circuit. Switch gear shall be full copper bus with optional KWH smart meter. Panel boards shall be copper bus sized with 30% more for future expansion.

22 Dobbins ARB Design Guide August 2011

Wall switches: Commercial grade, toggle handle with totally enclosed case, rated for 20 AMP and voltage as required (usually 277V). Wall switches shall comply with EIA 480, control incandescent, mercury, and fluorescent lighting fixtures and be of the heavy duty, general purpose, non‐interchangeable flush type.

Duplex receptacles: Shall be commercial grade, rated 20 AMP, 125 volts, 2‐pole, 3‐wire duplex conforming to NEMA WD6, NEMA 5‐20R.

Interior conduit: RMC, EMT, FMC, IMC, RNC, or as required for explosion‐proof construction.

Conduit filling shall be per NEC (National Electrical Code). When using NEC‐approved wiring, conduit is not required in base housing.

Neutral or Ground Sizing: Follow the FIPS 94 guidelines to account for adjustable speed drives, automatic data processing and other electronic loads.

Surge Suppression: Provide surge suppression to protect against harmonic distortion and transients in critical or mission essential areas. Provide dedicated circuits for computers.

4.4 Underground

The primary voltage is 12.5KV. The secondary is 480/277V or 208/120V and in some cases

240V.

Underground electrical primary distribution is under the authorities of Base Civil Engineering and Georgia Power Company with their approved designs, construction methods and specifications.

For transitions from underground to above ground, the first 10’ must be Rigid Galvanized Metal. Metallic conduit, installed below grade where specifically approved, shall be protected with cathodic protection and bonded protective coating shall both be applied during assembly. Prefer all outside conduit/conductors be placed underground.

Design Conditions: The design of underground distribution systems shall be based on the calculated demand with sufficient electrical capacity for expansion if allowed or if within the budget. This design shall meet Georgia Power Company specification.

Materials: The materials as indicated above shall be rigid, heavy duty plastic conduit encased in concrete. Allowable plastic conduits include PVC, fiberglass or similar nonmetallic electrical duct.

Wiring: For underground or damp locations shall be installed as per NEC specifications for wire insulation and wire sizes for 75 degree C termination.

4.5 Aboveground

The primary voltage is 12.5KV. The secondary is 480/277V or 208/120V and in some cases

240V.

Aboveground electrical distribution is under the authorities of Base Civil Engineering and Georgia Power Company with their approved designs, construction methods and specifications.

Georgia Power Company operates and maintains all overhead transmission and distribution lines. In addition to providing new service feed from pole mounted transformers to new facility weather head area.

Lighting protection for aerial distribution shall be through the use of combination static and neutral wire.

Motors: All motors of 5HP or larger shall have single phasing protection of the type that trips when the phase angle between the three phases is not 120 degrees or on an undervoltage condition. All motors of 50HP or larger shall utilize soft start starters.

23 Dobbins ARB Design Guide August 2011

Site Lighting: Site lighting shall continue to exhibit continuity throughout the Base. All of the street and parking lot lighting are under Georgia Power operation and maintenance contract.

Exterior building lights shall be fluorescent fixtures. All street, site, etc. lighting shall be high pressure sodium. All poles shall be square or round, straight aluminum. Luminaires and poles shall be anodized or duranodic bronze aluminum or matching color bronze painted steel finish with appropriate NEMA distribution for its intended function. Cobra head fixtures are acceptable at roadway parking lot locations. Roadway luminaires shall be arm mounted.

Average mounting heights shall be as follows:

o Sidewalk and plaza lighting – 12 to 50 feet.

o Special purpose lighting ‐ 20 to 30 feet.

o Parking and roadway lighting – 30 to 50 feet.

Selection of poles and fixture types for specific functions should be consistent throughout the base.

Lighting levels and installations should vary with the volume and type of traffic and the visual character desired. Coordinate street lighting and sidewalk lighting locations with site amenities (landscaping, benches, signs, etc).

Grounding:

o Provide separate grounding conductors and rods for surge (lightning) arrestors and service neutrals. Ground rods, where used, shall be 3/4” copper clad, minimum length of 10’.

o Ground resistance shall normally be less than 25 Ohms though certain facilities may require ground resistance to be less than the minimum specified in the NEC.

Grounding for lightning arrestors on distribution lines shall be 15 ohms or less. Else, the arrestor may not pick up the strike. Provide insulated grounding conductors to all grounding type outlets.

o Metallic conduit shall not constitute a safety ground!

Include the following in specifications:

o Use three‐point ground test and instrumentation. Perform test in presence of government inspector. Submit results and indicate type of test performed.

o Transformers: All service transformers (pad mounted or pole mounted) are the jurisdiction of Georgia Power Company.

o Emergency Generator: Diesel only with fuel on site to operate a minimum of 72 hours. Auto transfer switch with maintenance bypass. Transfer switch to operate by linear solenoid. Prefer Onan or Caterpiller. For Transfer Switches, prefer Onan or General Electric.

4.6 Interior

Wiring: For indoor locations, use THHN/THWN insulation rated for 600V and 75 degrees C.

Minimum wire size shall be 12 ga. Conduit wiring fill shall be as per NEC with ambient temperature correction factor and amperage correction factor.

Wiring Devices: Provide new devices and plates whenever an area is renovated. All devices shall be recessed except in mechanical rooms and utility areas. Provide devices rated at 20A or greater. All wiring shall be copper. No aluminum allowed.

Breaker Panels: Bolt on breakers shall be specified. Provide 25% (minimum of 4) spare 20 Amp single pole breakers and an equal number of spaces. Use only copper buses. Ensure proper coordination and withstand ratings for all overcurrent protection devices.

Demonstrate coordination with first upstream existing protective device. Replace old circuit

24 Dobbins ARB Design Guide August 2011 breakers with new when remodeling facilities. If replacement breakers are unavailable, consider replacement of entire panel board. Main fusing is acceptable for limiting short circuit currents; however, place a box with one full set of spare fuses adjacent to main panel.

Electrical Identification: Provide plastic panel board and disconnect labels. Labels shall be laminated (black with white core) engraved with 1/4 inch high letters. Attach to front exterior of enclosures. Labels shall match plan designations. Provide non‐ferrous phase and circuit identification labels in all enclosures for feeder circuit conductors. Provide underground marker tapes for all underground conductors. If underground conductors are not in metallic conduit, provide marker tape with foiled backing to facilitate detection.

Transformers: Any new transformer (dry type) installed in the electrical/mechanical room shall be of delta primary and wye secondary connections for three phases and 2 – 21/2 percent taps above and below rated voltages. Installation shall be per NEC. Fuse disconnect with lock‐out features shall be on primary side of transformer wiring and shall be in‐line of sight within 25 ft.

Electrical Related Work: Balance loads on phases within 10% at all panel boards. Conduit fault calculations to ensure proper withstand ratings for all protective devices. Ensure coordination for all protection devices, conductors, enclosures and equipment.

All penetrations of fire resistance rated walls shall be fire stopped IAW NEC Article 300‐21.

Meters shall be generally located at pad mounted service transformer or near building’s service entrance and shall be on all new and remodeled buildings.

All new buildings shall have lightning protection designed into the project.

Electrical panels to be painted to match or to coordinate with interior color scheme or specified with appropriate factory finish.

4.7 Lighting

Design of interior or exterior lighting and controls shall follow the Unified Facilities Criteria

(UFC) 3‐530‐01.Which Utilize energy saver 32 watt T‐8 fluorescent lamps and electronic ballasts in administrative and similar areas. Use metal halide lights in bay areas, even in areas of non‐critical color rendition.

Provide Certified Ballast Manufacturer (CBM) listed ballasts. All ballasts shall be electronic and shall have 0.90 power factor or greater and with a total harmonic distribution of <10%.

Where spot dimming is required, use special dimming ballasts with compact fluorescents or multiple switching of circuits with compact fluorescents.

Use Occupancy/Vacancy sensors with manual control capability for areas where occupancy is irregular or intermittent, as in conference room, break areas and etc. Vacancy sensor is use in office areas when office become vacant for a period of time to turn off lights, resetting is by flipping the light switch. Interfacing lighting controls and occupancy/vacancy sensors with the EMCS system (i.e. Building DDC system) is required. Occupancy/vacancy sensors in bathroom and break area are not required to be connected to EMCS when not practical.

Interconnect outside lights and photo cells with the EMCS system. Program the lights to shut off when not needed.

Exit Signs are to be of Light Emitting Diode (LED) type exist signs.

All emergency exit lighting shall have battery‐back ballast to provide lighting for 30 or more minutes with test features for testing lighting output.