Appendix_A.pdf

SOLICITATION NO. W912PL-10-R-0011

DATE: DECEMBER 2009

US Army Corps of Engineers ® Albuquerque District

VOLUME 2 OF 2

DESIGN/BUILD

FY10 144 PN DORMITORY

DAVIS-MONTHAN AIR FORCE BASE,

PIMA COUNTY, TUCSON, ARIZONA

APPENDIX

ero Accidents ero Tolerance i

APPENDIX INDEX

APPENDIX A - DORMITORY AREA DEVELOPMENT PLAN, DAVIS-MONTHAN AIR

FORCE BASE, TUCSON, ARIZONA

APPENDIX B - DESIGN COMPATIBILITY STANDARDS, DAVIS-MONTHAN AIR

FORCE BASE, TUCSON, ARIZONA, INCLUDING ADDENDA

APPENDIX C – DOD UNIFIED FACILITIES CRITERIA (UFC) MINIMUM

ANTITERRORISM STANDARDS FOR BUILDINGS

APPENDIX D – AEIM, CHAPTER II, CIVIL

APPENDIX E – COLOR BOARD GUIDANCE

APPENDIX F - DRAFTING STANDARDS

APPENDIX G – STRUCTURAL DRAFTING STANDARDS

APPENDIX H - DESIGN ANALYSIS GUIDANCE

APPENDIX I - SPECIFICATION GUIDANCE

APPENDIX J – LANDSCAPE DEVELOPMENT PLAN - INSTALLATION PLANT LIST

APPENDIX K - STORM WATER POLLUTION PREVENTION PLAN OUTLINE AND

PERMIT APPLICATIONS

APPENDIX L – AIR FORCE ENLISTED DORMITORY DESIGN GUIDE

APPENDIX M - CONCEPTUAL DRAWINGS

APPENDIX N – GEOTECHNICAL INFORMATION

APPENDIX O – SMALL COMMERCIAL SOLAR ELECTRIC SYSTEM (PHOTOVOLTAIC)

APPENDIX P – ASBUILT DRAWINGS

APPENDIX Q – ACM SURVEY

APPENDIX R – REVEGETATION AND EROSION CONTROL

APPENDIX A

DORMITORY AREA DEVELOPMENT PLAN

DAVIS-MONTHAN AIR FORCE BASE

TUCSON, ARIZONA

D O R M I T O R Y A R E A

D E V E L O P M E N T P L A N

DAVIS-MONTHAN AIR FORCE BASE

TUCSON, ARIZONA

100% Submittal , Revised June 27, 2001

TABLE OF CONTENTS

INTRODUCTION 1

GOALS AND OBJECTIVES 2

EXISTING CONDITIONS 3

• Land Use

• Utilities

• Water

• Sewer/Drainage

• Storm Drainage

• Gas

• Electric

• Telecommunications

• Mechanical

• Landscape

• Transportation/ Parking Analysis

• Constraints and Opportunities

RESIDENT SURVEY 4

• Narrative

• Plan

AREA DEVELOPMENT PLAN 5

• Major Features

• Dorm Area Plan/Phasing

• Relocation

• Demolition

• Landscape

• Parking/Circulation

• Utilities

SUMMARY 6

INTRODUCTION 1

This Area Development Plan (ADP) will serve to update the 1992 ADP to incorporate the siting of four new dormitories within the dorm planning area. These dorms will include four 120-person dorms. The planning area is defined by Ironwood Street on the north, Craycroft Road on the east, Madera Street on the south and Fifth Street on the west. The actual study area is expanded to include facilities across these streets and further includes the BX to the north. The ADP will address the following issues:

• Relationship to existing and future facilities and compatibility with the DM

General Plan.

• Landscaping, paving and recreational requirements.

• Parking and vehicle circulation.

• Pedestrian circulation.

• Relocation of existing functions.

• Demolition of selected structures.

PROJECT PROCESS

The needs, goals and objectives have been established and refined through the following processes.

• Interviews with effected organizations.

• Development, distribution and analysis of a Dorm Resident Survey addressing the following:

• Transportation

• Exterior Amenities

• Interior Amenities

• Adjacencies

• Parking Analysis

• Existing utilities capacity analysis.

Three day planning Charette involving key personnel and covering the following issues:

• Analysis of existing conditions.

• Analysis of survey results.

• Establish design requirements/goals.

• Establish constraints and opportunities.

• Develop site design concepts.

• Develop building design concepts for new dorm.

• Refinement of selected concepts.

The following groups participated in the Charette process:

• The Architect Team

• DM Civil Engineering

• DM Community Planning

• DM Landscape Architects

• Representatives of ACC/CEPT

• Senior Enlisted Advisor

• Fire Department, Security Police

• Medical, Education Services Representatives

• Maintenance Engineering

• Real Estate

• Dorm Representatives

GOALS & OBJECTIVES 2

1. Master Plan The Dorm Area 1+1

A. Provide 4-120 Person Dorms B. Detailed Plan For FY 2002 Dorm

2. Improve Quality Of Life For Dorm Residents

A. Design For Human Scale B. Provide Privacy And Social Interaction C. Provide Recreation Opportunities D. Provide Priority Amenities

3. Improve Pedestrian And Vehicular Circulation

A. Provide Convenient, Not Dominant Parking B. Improve Pedestrian Circulation Routes C. Provide Fire And Service Circulation

4. Create A Cohesive Dormitory Community

A. Minimize Non-Dorm Related Functions B. Enhance Preferred Support Functions C. Analyze Relocation Opportunities

5. Develop Cost Effective Solutions

A. Minimize Impact On Existing Infrastructure B. Minimize Maintenance Costs

6. Create a Secure Environment A. Utilize Anti-Terrorist Design Methods

EXISTING CONDITIONS 3

LAND USE

The diagrams following this page show the land use for the entire Base as well as specific uses within the dorm planning area.

The dorm planning area is bounded by Community Activities on the north, Housing and Mixed Use functions on the east, Recreation on the south and Industrial on the west.

The planning area currently contains a mix of Dormitory, Education and Administrative functions.

UTILITIES

EXISTING WATER SYSTEM

BASED ON DAVIS-MONTHAN CE "G-TAB" G-1 REVISED 9/91

The water supply consists of a series of six looped systems of cast iron and cement asbestos pipes. The entire on-site portions of Fifth, Sixth, Eighth, Madera and Ironwood Streets contain 6 and 8-inch main supply lines. The southern on-site half of Seventh and the portion of Kachina between Fifth and Sixth Streets also hold main lines. Two east-west lines are located north of Buildings 3503 & 3510 and south of Buildings 3501 & 3219. The loops are evenly placed, generally allowing minimal "gaps" in coverage area. Also, there are 13 evenly spaced fire hydrants that serve both on-site and off-site fire protection.

This system is fed from a 500,000-gallon above-ground storage tank located on the northwest corner of Madera and Craycroft.

EXISTING WATER SUPPLY SYSTEM

SEWER/DRAINAGE SYSTEM

BASED ON DAVIS-MONTHAN CE "G-TAB" G-2 REVISED 9/91

SANITARY SEWER EXISTING CONDITIONS

The sanitary sewer consists of four main trunks that receive on-site and off-site demand.

A. Sewer Trunk #1: This is an 8 inch line beginning at the intersection of

Madera and Eighth Streets, traversing on-site along Madera Street, and terminating at the main trunk in Third Street.

B. Sewer Trunk #2: This begins as an 8" line outside the library on Eighth

Street. It traverses on-site as a 10-inch line flowing west just north of Buildings 4300, 4310 and 4320. At Manhole #205 (outside of Building 4201), the line turns north and travels up Fifth Street to collection Manhole #207 at the intersection of fifth and Ironwood Streets.

C. Sewer Trunk #3: This is an 8-inch line that begins outside of Building 3509 at Manhole #246. The trunk follows Kachina Street to Manhole #244 at the intersection of Sixth Street and turns north along Sixth to Manhole #41 in Sewer Trunk #4.

D. Sewer Trunk #4: This sewer line begins south of Bama Park near Yuma

Street. This line travels north and east, entering the on-site area north of Building 3510. On-site, this line flows east to Manhole #33 and turns North, parallel to Seventh Street, to Manhole #37. It ultimately terminates in collection Manhole #207.

SITE STORM DRAINAGE SYSTEM EXISTING CONDITIONS

BASED ON DAVIS-MONTHAN CE "G-TAB" G-3 REVISED 1/81

The area incorporates both positive grading and storm sewers to remove area nuisance flows.

A. Site Drainage Grading:

The overall site drains naturally from the southeast to the northwest. From site visual inspection and from the base master drainage plan, storm flow is conveyed in the streets as surface runoff for both on-site and off-site drainage watersheds. The on-site storm water flow is generated from the area bound by the following streets:

• Ironwood

• Fifth

• Madera

• Eighth

Off-site inflow tributary area will reach as far south as Nuggat Street and as far west as Craycroft Road. With respect to on-site drainage impacts, the dorms and other auxiliary structures are elevated and graded to drain to the adjacent streets. The streets are typical asphalt crowned midsection with concrete vertical curb and valley gutter. At street intersections, the flow in the north/south streets is diverted westerly and the flow in the east/west streets is diverted north. All on-site flows ultimately end up in the storm sewer drainage system located along Fifth Street.

B. Storm Sewer System:

The existing base storm sewer conduit system consists of a 48 and 54 inch main that generally traverses north along Fifth Street with collection points at the intersections of Ironwood, Kachina, Madera Streets and outside of Building 4201. From site visual inspection, all drainage from the study area will impact the existing conduit system. This trunk sewer originates from the south around Flight Line Road and terminates at the North Ramp.

EXISTING SANITARY SEWER SYSTEM

EXISTING STORM DRAINAGE SYSTEM

NATURAL GAS

BASED ON DAVIS-MONTHAN CE "G-TAB" G-6 REVISED 7/97

NATURAL GAS DISTRIBUTION SYSTEM EXISTING CONDITIONS

The on-site natural gas system consists of four loops of 2-inch PE pipes. All gas lines, except for services, are contained along Fifth, Sixth, Ironwood, Kachina, Madera and the southern half of Seventh Streets. There are also abandoned in-place gas lines running concurrent to the main and service lines.

From the natural gas distribution system plan sheet and from site visual inspection, some of the services to the dorms have been terminated. The service pipes are above ground and disconnected. There is also a void of gas service in the northeast quarter of the on-site area. At this time, this area consists of parking and open spaces around Building 3219.

EXISTING NATURAL GAS DISTRIBUTION SYSTEM

ELECTRICAL

BASED ON DAVIS-MONTHAN CE "G-TAB" REVISED 9/91

A. The existing buildings are served primarily from an overhead distribution system. A main overhead line runs east and west along the north side of Kachina Street. This overhead line supplies a radial feeder heading north on Seventh Street and both north and south on Sixth Street. In addition, an overhead loop feeder extends south on Seventh Street and reconnects to the power grid at Nugget Street. Buildings 3220 and 3501 are supplied by an overhead radial feeder running south on Sixth Street from Ironwood Street.

A second main overhead line runs north and south along the east side of Fifth Street.

B. Some portions of the system have been converted to underground distribution. This is typically from the pole risers to pad mounted sectionalizing switches and transformers.

EXISTING ELECTRICAL PRIMARY SYSTEM

TELECOMMUNICATIONS

TELECOMMUNICATIONS SYSTEM EXISTING CONDITIONS

A. The existing telecommunications distribution system is served by a combination of overhead and underground lines.

B. The system is owned/maintained by three separate companies, including DMAFB Communications, Qwest Regulated and Cox Communications.. Coordination with all will be required for any proposed alteration of the system.

C. A main copper trunk line is routed east and west along Ironwood

Street and north and south along Fifth Street. This line does not appear to impact this project at this time.

D. Major copper cable feeds are co-located with the main fiber optic line routed underground east and west along Kachina Street. The line includes manholes at the intersections of Kachina Street and Fifth, Sixth and Seventh Streets. Access for service vehicles must be maintained.

E. Building 4210 is supplied telecommunication service separately from the Billet Office.

F. The existing telecommunications distribution system appears adequate to serve the proposed dorm expansion project. However, should the existing fiber optic line described in Item D above, be considered in the master plan as relocation, the cost would be prohibitive.

CABLE TELEVISION SYSTEM EXISTING CONDITIONS

A. Cable television (CATV) service is provided and maintained by an outside contractor, Cox Communications, Inc. Costs for relocating the existing CATV distribution system will be determined at a later date.

B. The cable television supplied from an existing overhead distribution system utilizing the existing pole lines.

C. The existing CATV distribution system appears adequate to serve the proposed dorm expansion project.

EXISTING TELECOMMUNICATIONS SYSTEM

MECHANICAL

A. Dormitory Air Condition Plant Building 5101

1. Although the existing Dormitory Air Conditioning Plant was upgraded in 1996, it is presently at capacity and no buildings can be added to the system. At this time any new dorms will continue to be stand alone buildings for both chilled water and heating water. This is true for both the first and second phase.

2. As later phases of the dormitories are considered, review of the plant situation should be undertaken if the plant has been upgraded.

3. The existing plant consists of two nominal 650 ton York natural gas engine driven centrifugal liquid chillers. The two chillers are served by two Evapco cooling towers with a 2150 gallons per minute (GPM) flow rating. The existing condenser water pumps are 50 horse power rated at 2150 GPM at 70 feet of head. The existing chilled water pumps are 20 horse power rated at 1300 GPM (1400 GPM future rating) at 35 feet of head.

There are two site distribution pumps. One site distribution pump is 75 horse power rated at 1466 GPM (1793 GPM future rating) at 120 feet of head. The second site distribution pump is 25 horse power rated at 781 GPM (927 GPM future rating) at 85 feet of head.

B. Chilled Water Site Distribution

1. The existing Dormitory Air Conditioning Plant currently serves buildings 2442, 2300, 3203, 3200, 3220, 3501, 4000, 4100, 4101, 3500, 4200, 4102, 4210, 4202, 4211, 4300. The chilled water piping is routed below grade to each of the above buildings.

a) The underground distribution piping serving buildings 2442, 2300, 3203, 3200, 3220, 3501 was installed in 1996 as a part of the Air Conditioning Plant Upgrades. This newer distribution piping is pre-insulated PVC piping, SDR-26, Class 160, bell and spigot piping

b) The underground distribution piping serving buildings 4000, 4100, 4101, 3500, 4200, 4102, 4210, 4202, 4211, 4300 is the original distribution piping and is reported as having leaks.

This original distribution piping is black iron and is insulated below grade.

c) Project FBNV980102 has been designed to replace the piping mentioned above. The new piping has been sized to accommodate the future growth of the Dorm Area and an increase in capacity of Central Plant Building 5101.

C. Existing Dormitory Buildings Served By Air Conditioning Plant

1. Cooling for the existing dormitory buildings is provided by two pipe fan coil units within the individual spaces. The chilled water enters the dormitory buildings in the mechanical rooms and is distributed throughout the building to the fan coil units by a local circulation pump. This same piping and pump is used for heating water distribution to the fan coil units.

2. Heating for the dormitory buildings is provided by local natural gas fired boilers located within the dormitory mechanical rooms. The heating water is distributed throughout the building to the fan coil units by a local circulation pump. This same piping and pump is used for chilled water distribution to the fan coil units.

D. Existing Dormitory Buildings Served By Local Central Plant

1. The newer dormitory buildings are served by individual chilled water plants located at the individual dormitory buildings. The chilled water is circulated to individual terminal units within the building.

2. The newer dormitory buildings are served by individual heating water plants located at the individual dormitory buildings. The heating water is circulated to individual terminal units within the building.

EXISTING CHILLED WATER SYSTEM

LANDSCAPE

Within the dorm study area, the existing landscape and irrigation fall into two categories.

• Relatively recent, desert landscape with drip irrigation.

• Old established, higher water use landscape with bubblers or spray irrigation.

The north and eastern parts of the study area have the four newer dorm buildings, and have existing desert landscapes, more in keeping with the current base landscaping guidelines.

The west and south parts of the study area are older dorms with conventional, temperate zone plantings. Some of the trees in these older areas are large, mature specimens that should be considered for preservation in place, and incorporation into the new plan, if possible. The large existing pines, in particular, provide good shade and scale.

PARKING/TRANSPORTATION

The Planning Area is currently served by a combination of Arterial and Collector streets. Fifth Street on the west, Craycroft on the east and Ironwood on the north serve as arterials, while Madera on the south is a collector. Seventh Street, a collector, bisects the area from north to south. Traffic on Sixth Street and the West half of Kachina is restricted to maintenance and emergency vehicles only.

Parking areas are disbursed throughout the Planning Area with major lots located in the core of the dormitory area. A total of 1250 parking spaces are provided within the study area. The close proximity of these lots to occupied structures makes it difficult to provide security against terrorist acts. The majority of these parking lots show marginal use throughout the day.

Due to the limited parking along the west side of the dorm area, the parking lots west of Fifth Street are frequently used by dorm residents, resulting in heavy pedestrian traffic across Fifth Street. Although crosswalks are clearly defined, they are not consistently used resulting in a dangerous situation.

CONSTRAINTS & OPPORTUNITIES

RESIDENT SURVEY

In an effort to establish the concerns, priorities and needs of the current dorm residents, a survey form was developed and distributed. The survey (a copy is included in this Section) requested the following information:

• Type of Dorm

• Mode of Transportation

Respondents were requested to prioritize the following:

• Exterior Amenities

• Interior Amenities

• Adjacencies

A total of 176 responses were received. The results are summarized on the following pages.

Interior Amenities 1 2 3 4 5 6 7 8

Individual Storage 23 26 14 15 29 23 7 3 Bulk Storage 8 15 19 12 14 26 24 8

Laundry 93 23 21 13 9 1 Study Room 9 12 16 17 19 15 26 6

TV Room 26 26 33 20 18 14 5 4 Weight Room 32 39 25 16 13 9 9 4

Vending Machines 14 10 20 28 19 16 18 7 Freight Elevator 10 8 3 9 6 4 6 50

P R I O R I T Y

Interior Amenities

1 2 3 4 5 6 7 8 Priority

R es p o n se s Individual Storage

Bulk Storage

Laundry

Study Room

TV Room

Weight Room

Vending Machines

Freight Elevator

Exterior Amenities 1 2 3 4 5 6 7 Volleyball Court 29 18 23 13 18 13 8 Basketball Court 30 33 18 17 16 13 1

Ramada w/ Bar-B-Que 60 34 21 12 4 4 3 Quiet Sitting Area 31 23 12 12 20 17 7 Seating/Rec Areas 19 16 22 22 15 15 6 Open Recreation 20 10 17 15 15 23 5

Motorcycle Parking 14 4 8 8 9 4 57

P R I O R I T Y

Exterior Amenities

1 2 3 4 5 6 7 Priority

R es p o n se s Volleyball Court

Basketball Court

Ramada w/ Bar-B-Que

Quiet Sitting Area

Seating/Rec Areas

Open Recreation

Motorcycle Parking

Adjacencies 1 2 3 4 5 6 7 8 9 Base Exchange (BX) 50 56 19 21 6 7 4 1 2 Comm/Rec Center 5 8 24 14 25 20 27 18 4

Playing Fields 6 5 12 7 19 28 21 16 26 Base Gym 26 27 31 34 15 6 9 11 3

Com College Classrms 19 10 13 21 27 19 20 16 5 Wellness Center 3 5 5 7 11 16 13 36 38

Shopette 16 22 25 25 18 15 15 9 5 Dining Hall 74 31 19 8 17 4 3 8 1

Library 9 7 17 17 15 21 16 13 34

P R I O R I T Y

Adjacencies

1 2 3 4 5 6 7 8 9 Priority

R es p o n se s Base Exchange (BX)

Comm/Rec Center

Playing Fields

Base Gym

Com College Classrms

Wellness Center

Shopette

Dining Hall

Library

AREA DEVELOPMENT PLAN 5

MAJOR FEATURES

• Centralized Dorm Area Concept

• Pedestrian Oriented Circulation System

• Intersecting Paths Form Activity Nodes

• Creation of Recreation/Activity Areas

• Shift From "Motel" Style Dorms to "Apartment" Style Concept

• Emphasis on Enhanced Quality of Dorm Life

• Landscaped Parking Areas Around Perimeter of Dorm Area

• Old BX Evolves into a Community Services Center

• Consolidate Support Group Functions

• Administrative Uses to Perimeter of Dorm Area

• Force Protection concerns

• Phase & Implementation

• Demolition of Old Facilities

AREA DEVELOPMENT PLAN

Keynotes

1. Pedestrian Entry 'A'

2. Screen 'B'

3. Not Used

4. Activity

5. Phase One

6. Dev. Courtyard and Walks

7. Node 'A'

8. Screen 'A'

9. Not used 10.Screen 'C' 11.Access Control, Phase Four 12.Phase Two 13.Phase Three 14.Phase Four

15. Pedestrian Corridor Phase One

16. Pedestrian Corridor Phase Two

17. Pedestrian Corridor Phase Three

18. Pedestrian Corridor Phase Four

19. Parking Phase One

20. Parking Phase Two

21. Parking Phase Three

22. Parking Phase Four

23. Central Plaza

24. Dining Hall

25. Pedestrian Link to BX

IMPLEMENTATION PLAN

The following table describes the proposed demolition of structures and the relocation of the functions based on those structures by phase.

ACTION: Demo 3503 DRIVER: FY02 Dormitory

REQUIREMENT: Vacate 3503 by Jan 02 Organization From To Det 3 TRSS 3503 1226 (Interim) OGV Stan Eval 3503 1226 (Interim)

OSI 3503 4300

SF Investigations 3503 3200

REQUIREMENT: Vacate 1226 by Nov 01 Organization From To WG Safety 1226 2nd Fl Base Ops Treaty Compliance 1226 1st Fl Base Ops REQUIREMENT: Vacate 3rd Floor 4300 by 30 Jun 01 Organization From To Def Sec Svc 4300 4310 (3rd Fl) Nav Crim Inv Svc 4300 4310 (3rd Fl) DESC 4300 4310 (3rd Fl) DALCO 4300 4310 (3rd Fl) Historian 4300 4310 (2nd Fl) SABER 4300 4300 (1st Fl) CE Env 4300 4300 (2nd Fl)

REQUIREMENT: Vacate Part of 1st Floor 4300 by 31 May 01 Organization From To Food Services 4300 4310 (2nd Fl) IG Storage 4300 1540 (Interim)

ACTION: Demo 4210 DRIVER: FY03 Dormitory

REQUIREMENT: Vacate 4210 by Jan 03 Organization From To Snowbird VAQ 4210 MILCON VAQ

ACTION: Demo 4212 DRIVER: FY03 Dormitory

REQUIREMENT: Vacate 4212 by Jan 03 Organization From To 355th Comm Sq 1358 1540 Graphics 4212 1540 Photo Lab 4212 1540

DAPS 4212 1540

REQUIREMENT: Other related actions after Jan 03 Organization From To 355th Sec Forces 4413 1358 Det 3 TRSS 1226 4413

OGV Stan Eval 1226 4413 OSS Intel 4310 4413

ACTION: Demo 3510 DRIVER: FY05 Dormitory

REQUIREMENT: Vacate 3510 Organization From To Auditor 3510 2300 Auditor Contract 3510 2300

ADC 3510 3200

ACTION: Demo 4320 DRIVER: FY05 Dormitory

REQUIREMENT: Vacate 4320 Organization From To

AAFEES 4320 2441

Education 4320 2441

ACTION: Demo 3220 DRIVER: FY05 Dormitory

REQUIREMENT: Vacate 3220 Organization From To Thrift Store 3220 2441 Airmans Attic 3220 2441

ACTION: Demo 4310 DRIVER: FYXX Dormitory

REQUIREMENT: Vacate 4310 Organization From To OSS Intel 4310 4413 various others 4310 TBD

ACTION: Demo 4220 DRIVER: FYXX Dormitory

REQUIREMENT: Vacate 4220 Organization From To Public Health 4220 pending results of HFO Req’mts survey Bioenvironmental 4220 pending results of HFO Req’mts survey

HAWC 4220 2505

The relocation of these functions to the old BX will create a community center of services for base personnel and their families. The relocation of educational facilities with the library strengthens the academic program.

LONG TERM PROJECTS

The Projects listed below are not directly related to the siting of the new Dormitory structures. However, the eventual implementation of these projects will further enhance the Dormitory Area, and address many of the goals and objectives defined in the plan.

Perimeter Landscaping along Craycroft Enhance and Modify Parking Lot North of 3509 Demolish Existing Dining Facility (4100) Build New Dining Facility North of 4320 Build Passive Recreation Area on Existing 4100 Site Construct Parking Screening along West Side of Fifth Street Relocate Community Center Functions to 2050 Demolish 4201 and Build Passive Recreation Area Enhance and Modify Parking Lots South of 4300 and 4310

AREA DEVELOPMENT PLAN -

DEMOLITION

PHASE DEMO

1 3503 2 4210 & 4212

3 4320, 3220, & 3510 4 4220 & 4310 long term 4100

LANDSCAPE

Character Zones The main elements of the landscape concept are three concentric rings of differing character, intersected and overlaid by pedestrian and vehicular routes. Circulation converges on the central plaza, at the heart of the complex.

The perimeter ring or zone is primarily parking, characterized by desert planting such as Mesquite, Acacia, Palo Verde, Ocotillo, Desert Spoon, Indigo, Cactus, and desert groundcovers such as Mexican Evening Primrose, Aloe and Verbena. These areas will be screened from view by xeriscaping.

Working inwards, the next zone is where the existing dormitory blocks are. Here, desert plantings are interspersed with shady, ‘transitional’ trees such as, Arizona Ash, Desert Willow, and Live Oak. Flowering shrubs like Bird of Paradise and blue and red Sages, Texas Mountain Laurel, Bunch grasses, Humming Bird Bush will form the understory. There are also areas of semi-public grass for active and passive recreation. Some lawns, such as those at the arrival nodes, are for sitting, waiting, or contemplation. Others, more private, relate closely to, and provide green space for, residential buildings. One area near the dining facility is specifically for recreation: picnics, jogging, perhaps kicking a ball around.

At the heart of the complex is the inner core, where there is a more urban feel and buildings, new and existing, are in close proximity. Here the emphasis will be on screening for privacy, color, fragrance and shade. The feel will be more ‘Mediterranean’, though still with lower water use species such as Heritage Oak, Jacaranda in courtyards, Bottlebrush, Yucca, Rosemary, Bougainvillea, Lavender, and Olive, with desert accents such as Palo Verde and Mesquite.

Circulation The circulation routes will be identified with avenue trees, such as Palo Brea or Chilean Mesquite. The main pedestrian route is an‘H’ shape, with both main pedestrian entrances on Ironwood St. and Madera St. (See sketch of Pedestrian Entrance ‘A’). Here there will be desert and accent plants and decorative paving, leading on to the main walkway. This, shaded, walkway will pass through the parking areas, to the ‘arrival’ area (See sketch of Pedestrian Node ‘B’). The arrival area will also have decorative paving and flowering plants, and a feature to identify it, such as a sundial or sculpture.

From here the user may pass into the residential area, and may choose a side route to one of the buildings or proceed to a major interior node (See sketch of ‘Pedestrian node ‘A’). The major node will have a significant feature such as a statue, flowers, shady places to sit, and fragrant hedges of sage or rosemary. This node is a ‘crossroads’, where three of four cross-routes lead to more residential buildings and then on, out of the site. The fourth route is past new apartment blocks, along the route of Kachina St., into the central Plaza (See Sketch). The plaza will have deciduous trees for summer shade and winter sun and will serve as a central gathering place.

The other pedestrian approaches to the center will be less formal, and will meander through existing buildings and mature trees, to the nodal points mentioned above.

Although there will be access to parking lots from Craycroft Rd and Fifth St., the main vehicular approaches are from Ironwood St. and Madera St. There will be ‘Entry Statement’ landscape planting, and the approach to the drop-off area roundabouts will be lined with stately trees, such as Heritage Oak. The avenue of trees will continue along the pedestrian-only part of the approach, to the Central Plaza. Entry features/ monument signs may be located on the roundabouts.

Screening Screening of the site from the street will be achieved in several different ways. On the south side of the site, along Madera St., a 30” wall is proposed to separate the sidewalk from parking. Trees and shrubs will be used to soften the wall (See sketch of Screening Concept ‘A’). On the north, along Ironwood Road, the sidewalk will meander away from the road. Screening from the parking lot will be provided by berms, trees and shrubs, and a 48” staggered wall (Screening Concept ‘B’). Along Craycroft Road on the east, the sidewalk will hug the road, but be separated, by landscaped berms, shrubs, and trees, from parking and existing facilities. No new wall is proposed along Craycroft Road (Screening concept ‘C’).

Standards All zones will be designed in compliance with the D.M. Compatibility Standards.

NOTE: NODE B NOT USED

PARKING/CIRCULATION

The development scheme presented herein shifts the parking from the core of the Dorm area to the perimeter. This approach establishes the core of the Dorm Area as an "Auto Free Zone."

Kachina, Sixth, Seventh and Eighth Streets are closed to all vehicular traffic with the exception of service and emergency vehicles. Limited access to the core of the area is provided from the north and south along the Seventh Street alignment. This feature allows dorm residents short-term close access to the dorms for moving or deliveries. Access to this area can be through use of card activated gates and will be installed in Phase 3 & 4. In addition to providing a pedestrian oriented environment, the perimeter parking concept also addresses the intent of the "Force Protection Plan" by minimizing the potential for having unattended vehicles near occupied structures.

Intersecting pedestrian paths form nodes which are utilized for various activities such as recreation. The pedestrian path intersections with the perimeter streets are treated as gateways with a pullout for drop-offs and the inclusion of landscape accents and site furnishings.

The major intersection of the Kachina and Seventh Street pedestrian ways forms a plaza around which are grouped four new dorms and the future site of the new Dining Hall.

In the long term, some parking may be provided on the west side of the dorm area, however, it may not be sufficient to alleviate the pedestrian problem across Fifth Street. To control pedestrian access to Fifth Street from the west parking lots and to enhance the visual appearance of that area, it is recommended that a screen wall and landscaping be provided along the west side of Fifth Street. Openings in the wall at key locations will provide access to crosswalks to the dorm area. These crosswalks will be constructed of textured concrete. It is recommended that when the crosswalks are installed, that the Fifth Street parking be completely replaced.

PARKING ANALYSIS

PHASE SPACES DEMOLISHED SPACES CONSTRUCTED

One Two Three Four Long Term

Total 945 921 Total Gain/Loss Loss of 24

Although the construction of Phase 1 will result in a reduction of overall parking by 143 spaces, the remaining spaces are only utilized approximately 40-50% of capacity and will be adequate to absorb the loss.

CIVIL

IMPACTS TO SITE STORM DRAINAGE SYSTEM EXISTING

CONDITIONS

Site Drainage Grading:

The impacts to the site drainage grading will consist of two major components:

Overall Onsite Grading will remain the same. The new developed conditions will consist of approximately 700,000 sq. ft. of new buildings and parking surfaces, while approximately 650,000 sq. ft. are being demolished. This is only a 7.5 percent increase of onsite impervious drainage areas. Since both onsite and off site drainage is conveyed in the streets, the overall drainage scheme should remain in tact.

Local Onsite Grading around newly constructed features should be graded to drain into the adjacent streets. New proposed parking lots should maintain a minimum of 0.6 percent grade to the drainage outlet. New proposed buildings should drain away from the foundations at a minimum grade of approximately 5 percent for at least 10 feet. New building finished floor elevations should be no lower than 6 inches above the developed 100 year

WSEL.

Storm Sewer System:

The existing storm sewer system will be impacted by fixing an existing drainage condition problem that will also have a bearing on the proposed development. It has been acknowledged by DMAFB that the dorm area has some problems with 0surface drainage. The intersections at Kachina with Sixth and Seventh in particular are low and do not drain well.

The resolution of this problem would be to install a storm sewer drainage structure along Kachina with inlets at the intersections of Sixth and Seventh streets. This new structure should gravity drain to the east and tie into inlet #S17. The storm sewer conduit from S17 to the main storm sewer trunk along Fifth street may have to be increased in size, depending upon final drainage conditions.

As to the main storm sewer trunk, the new developed conditions will have to include storm water detention so as to reduce flow below the existing conditions. A large portion of the drainage in pre-developed conditions ends up in the main storm sewer trunk along Fifth by the time the flow reaches Ironwood Street. The main storm drain on Fifth increases from 48 inches in diameter to 54 inches at the intersection with Kachina Street. It remains 54 inches in diameter all the way north to Eleventh Street.

IMPACTS TO SANITARY SEWER EXISTING CONDITIONS

There will four major areas of impact to the existing sanitary sewer system:

For phase 1 and phase 3 facilities, there will have to be a new dead end sewer trunk that gravity flows to manhole # 40. It will commence with a standard manhole in the pedestrian path on Seventh Street just north of Kachina Street. Flow to the north to a manhole at the base of the new Seventh Street automobile turnaround located next to existing building 3501, then flow west to manhole # 40. Manhole #40 will have to be replaced to accept the new inlet.

During the construction of phase 3, existing manhole # 33 will be removed due to the placement of a new dorm over its present location. Manhole #32 will be connected to MH #36 with a new 8" sewer trunk. This will require the replacement of manholes #32 and #36.

Existing services to buildings being demolished will be abandoned and capped in place. New sewer services will be required to all of the new facilities.

The new developed sewer demand will not impact the existing sewer system capacity as long as the majority of the new facility services connect to onsite sewer trunks #2 and #3 as outlined in the Existing Conditions summary.

These are onsite dead end trunks that consist of 8 inch and larger conduits and receive no off site discharge.

IMPACTS TO WATER SUPPLY EXISTING CONDITIONS

The proposed new development should have minimal impact to the existing water supply system. Geometrically, all new facilities will be constructed within 150’ of an existing water supply main. Fire hydrant spacing appears to be adequate within the context of the proposed dormitory layout.

However, the final locations of hydrants will need to be reviewed at the implementation of each phase. New domestic water demand will not be an impact factor because the water main loops with hydrants are generally sized for the greater fire demand capacities.

Anticipated water changes will consist of capping services to demolished buildings and providing service to new facilities. During Phase 1, a new water main will be installed to complete the loop system from Ironwood Street to Kachina Street.

IMPACTS TO NATURAL GAS DISTRIBUTION SYSTEM EXISTING

CONDITIONS

Impacts to the natural gas system will be minimal. Phase 1, Phase 2, Phase 3 and Phase 4 facilities will be able to obtain service from existing natural gas main lines. A new gas main will be installed during Phase 1 from Ironwood Street to Kachina Street. Existing services not used in the future will be removed prior to new construction. This includes existing capped services as well as services to buildings to be demolished.

MECHANICAL

The existing dormitory chilled water plant is at capacity and no new buildings can be added to the system for air conditioning during the first two phases. Building 4210 and 3220 are the only two buildings that will demolished and taken off the system. Building 4210 is in Phase 2 and 3220 is in Phase 3.

The expansion of the Central Plant is recommended over the use of individual central plants for the following reasons:

• Greater Overall Flexibility

• Reduced Maintenance Costs

• Reduced Operating Costs

Because it is not likely that the expansion will occur in time for the first two phases these will be designed as stand alone systems. The issue can be revisited later to determine in Phase 3 and/or 4 if the chilled water could be provided by the plant.

Heating systems will be stand alone gas fired boilers.

The chilled water and heating hot water systems shall be four pipe, reverse return systems.

Domestic hot water systems will be stand alone gas fired boiler and the piping shall include a return system.

ELECTRICAL

PROPOSED ELECTRICAL SYSTEM

The existing distribution system will be upgraded to accommodate the proposed dorm expansion. This upgrade will include conversion from an overhead to an underground distribution system while maintaining the existing system switching schemes.

The existing overhead transmission lines on Fifth, Ironwood and Craycroft will remain in service.

The radial line from Ironwood Street serving buildings 3220 & 3501 will remain. Building 3503 will be removed under this project and the electrical service disconnected.

The existing overhead lines on Kachina, Sixth and Seventh Street will be reworked under Phase 1 of this project as presented below:

• Convert the existing overhead lines on Kachina Street to underground between Sixth Street and Eighth Street.

• Convert the existing overhead lines on Sixth Street to underground between Ironwood and Kachina Street.

• Convert the existing overhead lines on Seventh Street to underground between Ironwood, past Kachina to first riser south of Kachina on Seventh.

• Provide switches at the intersection of Kachina and Sixth, Kachina and Seventh, and Ironwood and Sixth (branch to 3501).

• Provide pad mounted primary junction box with 4-way junction for connecting primary laterals to new and existing dormitories.

The existing overhead lines on Sixth Street, Seventh Street and Madera Street will be reworked under further Phases of this project as presented below:

• Phase 2: The existing overhead distribution lines running south on Sixth Street and Seventh Street from Kachina Street to Madera Street will be converted to underground. The existing overhead distribution lines running east-west on Kachina Street between Fifth Street and Sixth Street will be converted to underground. Switches will be provided at the intersection of Madera and Seventh to maintain the existing base sectionalizing schemes.

• Phase 3: The existing overhead distribution lines and street lighting circuit on Madera Street between Seventh Street and Eight Street will be converted to underground.

• Phase 4: The existing overhead distribution lines on Madera Street between Sixth Street and Seventh Street will be converted to underground.

AREA DEVELOPMENT PLAN –ELECTRICAL

PROPOSED TELECOMMUNICATIONS SYSTEM

The existing telecommunications system will be modified consistent with the degree of upgrade applied to the electrical system.

Communication manhole AMH# 43 shall be used as main access point for the entire dorm complex.

PROPOSED CABLE TELEVISION SYSTEM

The existing cable television system will be modified consistent with the degree of upgrade applied to the electrical system.

0SUMMARY 6

The final Area Development Plan represents the synthesis of the diverse needs, desires, goals and Objectives of the planning process participants.

Throughout the process these goals and Objectives were analyzed, reviewed, and prioritized. The prioritization of issues revealed that even though a goal or objective is identified, it may be in conflict with or have a lower priority than another goal or objective. For example, the goal to provide convenient, not dominant parking is partially superceded by the goal to create a secure environment. Force Protection issues dictated that parking be located as far from occupied structures as possible.

The Master Plan provides for the four new dormitory structures, as well as, other future buildings that help increase the quality of life for the residents.

Each dormitory provides a central courtyard for social interaction and recreation, as well as, convenient access to personal storage and support facilities. The Dormitory Area now provides a more cohesive community through the relocation of non-dorm functions and the concentration of new dorms within the core of the planning area. The new dorms also have minimal impact on the existing utilities infrastructure.