Atch 4 - DAFB Local Design Guide 9 Apr 17.pdf

DOVER AIR FORCE BASE

LOCAL MILCON AND SRM

DESIGN GUIDE

9 April 2017 (Previous Design Guides Obsolete)

Deliver Excellence!

Solicitation: FA4497-20-R-0004 Contract:

Attachment 4

TABLE OF CONTENTS

SECTION/TITLE PAGE

1.0 General 1

2.0 Civil 9

3.0 Environmental 15

4.0 Landscaping 20

5.0 Architectural/Structural 21

6.0 Mechanical 28

7.0 Plumbing 34

8.0 Fire Suppression Systems 35

9.0 Fire Alarm/Mass Notification Systems 35

10.0 Electrical 39

11.0 Communication 41

12.0 CAD Standards 45

Appendix A – AMC Exterior Sign Standards

Appendix B – A-GRAM 08-03

Appendix C – Air Force Sustainable Design and Development (SDD)

Implementing Guidance

Appendix D – AMRS Meter Specifications 4 Oct 2016 Rev 4

Solicitation: FA4497-20-R-0004

The design standards contained within this document shall be incorporated within all project specifications and drawings as applicable, unless approved otherwise by Dover AFB. This document supersedes the document titled “Dover Air Force Base Local MILCON and SRM Design Guide” dated 1 May 2014 in its entirety.

1.0 General

1.1 Design Guidance and Guide Specifications. In accordance with DOD Memorandum dated 29 May 2002, the Unified Facilities Criteria (UFC) and Unified Facilities Guide Specifications (UFGS) shall be used for the planning, design, construction, sustainment, restoration, and modernization of facilities, regardless of funding source. Air Force Engineering Technical Letters (ETL) shall also to be used.

Use Unified Facilities Guide Specifications (UFGS) for all projects, including Design-Build design submittals, and in accordance with UFC 1-300-02. Download, use, and edit the most current UFGS database available from the Whole Building Design Guide website. Modify and edit the UFGS as necessary to suit the work required by the specific project. Final project specifications shall be converted from Specsintact and provided in Adobe format.

Use the most current version of UFCs, UFGS or other similar design guidance as of the date of solicitation of the respective design delivery order or contract vehicle.

These UFC, UFGS and ETL documents are available on the Whole Building Design Guide website:

http://www.wbdg.org/

Current UFC 1-200-01, “DoD Building Code (General Building Requirements)” requires the use of the 2015 International Building Code (IBC) and the 2015 International Existing Building Code (IEBC) as the building code for the Department of Defense except as modified by UFC 1-200-01. In accordance with this UFC, the IBC and IEBC have been modified in Chapters 2, 3, and 4 of this UFC through reference to core UFC, other UFC as identified in Appendix A, References, and other listed military criteria. Core UFC provide the unique military building criteria that parallel the building code and apply to building systems found in most DoD facilities. In conflicts between the IBC and military criteria, or between the IEBC and military criteria, use the military criteria.

The project specifications shall include the following UFGS sections, as applicable.

01 33 00 Submittal Procedures 01 45 00.00 10 Quality Control (for design-build construction projects) 01 45 00.10 20 Quality Control For Minor Construction (for small construction, repair, or maintenance projects) 01 78 00 Closeout Submittals 01 78 23 Operation and Maintenance Data 23 08 00.00 10 Commissioning of HVAC Systems

1.2 Referenced Design Guides and Standards. The following documents shall be referenced and utilized as applicable. These documents are available on the Whole Building Design Guide website.

Dover AFB Architectural Compatibility Plan (AMC) Commander’s Guide to Facility Excellence (AMC) Interior Design Guide (AMC) Landscape Design Guide (AMC)

Solicitation: FA4497-20-R-0004 Contract:

http://www.wbdg.org/

US Air Force Interior Design Standards

1.3 The project specifications shall include the following Dover AFB Standard Specifications or incorporate the same requirements into other UFGS sections, as applicable. These documents are available from Dover AFB.

01 11 01 Dover AFB General Requirements (Final Draft 2017) 01 14 10 Dover AFB Site Management (Final Draft 2017) 02 61 10 Dover AFB Environmental Specifications (Final Draft 2017) 31 25 10 Dover AFB Sediment and Erosion Control (Final Draft 2017)

1.4 Professional Registration. Project documents will be developed under the direction of a registered architect or a professional engineer currently licensed in the State of Delaware. Each drawing shall only be signed, sealed, and dated by the registered architect or the professional engineer who is registered to practice in the particular field involved for work depicted on that drawing and serves as the Designer of Record for that work. Engineering corporations and partnerships and certain sole proprietorships shall obtain a Certificate of Authorization from the Delaware Association of Professional Engineers and comply with all applicable registration requirements.

1.5 Anti-Terrorism Force Protection: Comply with UFC 4-010-01 “DOD Minimum Anti-Terrorism Standards for Buildings”.

1.5.1 Due to the sensitivity of the information, the plans and specifications will not identify the explosive weights from the UFC which form the basis of the design. Only the corresponding design blast pressure will be stated.

1.5.2 All plans and specifications for “inhabited” buildings as defined by the UFC will include an annotation that cites the version (date of issue) of UFC 4-010-01 that was used for design.

1.5.3 Standoff Distance: For new construction, provide construction which meets required standoff distances to adjacent buildings, enclosures, streets and parking.

1.5.4 Windows: The standard UFGS for aluminum windows contains specific requirements for the construction contractor to submit manufacturer’s technical literature demonstrating compliance with blast resistance in the form of an engineering analysis or independent blast testing of the window and the method of securing the proposed window frames to the designed structure.

1.5.4.1 For projects involving window or skylight replacements within existing “inhabited” buildings as defined by the UFC, the project design analysis shall include an engineering analysis with supporting calculations of the existing wall and roof supporting structural elements (the surrounding wall and roof elements and their connections to the rest of the structure) for the capacity to transfer blast loadings from the windows or skylights to supporting structural elements. If insufficient capacity exists, the project design must include modifications to the existing walls or roofs as necessary to provide the required support to resist attributed window or skylight blast loadings. In addition, anchorage of wood blocking or other substrates in the walls or roofs to secure the replacement window or skylight frames shall be evaluated and properly designed.

1.5.5 Incorporate HVAC systems emergency shut off push button(s) and cover(s). Device color shall be blue. The exact location of button(s) shall be coordinated during the design phase.

Solicitation: FA4497-20-R-0004

1.5.6 Mass notification required IAW UFC 4-021-01 Design and O&M: Mass Notification Systems.

1.6 Closeout Submittals. Section 01 78 23 Operation and Maintenance Data of the specifications shall be edited to require submission as indicated below.

1.6.1 Operation and Maintenance Manuals. Submit one hard copy and one electronic copy in Adobe (.pdf) format on compact disc.

1.6.2 Final Approved Shop Drawings. Submit one electronic copy on compact disc (in AutoCAD or Adobe format) for all facility systems, to include:

Foundation/Structural Cast-In-Place Concrete and Steel Reinforcement Structural Steel Framing Metal Roof Truss Framing Precast Concrete Structures (i.e., drainage structures, floor/roof planks, masonry lintels, etc.)

Metal Roofing System Manufacturer’s Technical Literature, Calculations and Installation Details Blast Resistant Window/Door

Independent Testing Agency Reports Anchorage Design Calculations Installation Drawings

Irrigation System Drawings Fire Suppression System Layout and Hydronic Calculations HVAC System Layout and Controls Hydronic Piping System(s) Layout Fire Alarm / Mass Notification System Lighting Control Electronic Keying Systems

1.6.3 Final Record (As-Built) Drawings. Submit one hard copy and one electronic copy (in AutoCAD format) on compact disc.

1.7 Interior and Exterior Signage shall comply with UFC 3-120-01 Design: Sign Standards, the DAFB Architectural Compatibility Plan, and AMC Exterior Sign Standards (August 2000) (see attached Appendix A). The AMC Exterior Sign Standards references AFP 32-1097 which has been replaced by

UFC 3-120-01.

1.7.1 Roadway Traffic Control Devices. For Regulatory and Warning type signage and roadway markings, signals, crosswalks, temporary traffic control, etc., comply with US Department of Transportation Federal Highway Administration Manual of Uniform Traffic Control Devices (MUTCD) and the DoD Supplement to the MUTCD. Guide Sign faces and other sign faces (such as handicap and reserved parking signs, etc.) shall be as required by UFC 3-120-01, Paragraph 2.18.2 Standard Brown paint (ISCC-NBS, Color Designation 56 String Brown, National Park Service Brown, Ink: PMS 469).

The DoD Supplement to the MUTCD can be found at the following website:

http://www.sddc.army.mil/sites/TEA/Functions/SpecialAssistant/TrafficEngineeringBranch/Pages/default.aspx

1.7.2 Exterior Building Identification Signs shall comply with UFC 3-120-1 “Freestanding Building Identification Sign, Secondary Type”. Acceptable sign vendor is Pioneer Supply (800-545-2233), 1710 N. Franklin St, Pittsburg, PA 15233. Pioneer Sign Kit catalog number “Series 3 K1260P, or approved equal by Dover AFB. Sign posts shall be Dark Bronze. Sign face shall be National Park Service Brown with white lettering. Sign graphics will generally consist of the building number on the top line and the

Solicitation: FA4497-20-R-0004 organization identification on the second line. Coordinate specific graphics requirements with Dover AFB project management. Projects will not require building numbers or entrance signs to be placed on the building exterior wall.

1.8 Construction Sign: Required for MILCON projects only. Signage shall comply with UFC 3-120-01 “Design: Sign Standards” and UFGS 01 58 00 “Project Identification”. Color of signs shall be DAFB “Bald Eagle Brown”.

1.9 Airfield: The following applies to all project design and construction on Dover AFB. Comply with the requirements of UFC 3-260-01 “Airfield and Heliport Planning and Design”.

1.9.1 All projects involving construction activities within the “controlled” areas of the airfield shall include FAR Clause 252.236-7005 “Safety Precautions”. See also DFARS 236.570 (B) (3).

1.9.2 The construction specifications shall include the requirement for two-way communication with the Dover AFB Airfield Manager is required when applicable.

1.9.3 Special FAA determinations and Wing Commander approval may be required for crane use and other airfield incursions on Dover Air Force Base. An airfield construction waiver may also be required. The waiver application process must initiate through the Dover AFB Base Civil Engineer (minimum 60 days approval). Approvals may be necessary for any location on Dover AFB, not just the airfield.

1.9.4 Ensure that special airfield obstruction lighting is in compliance with UFC 3-260-01.

1.9.5 The construction specifications shall include the requirement for all vehicle operators to complete Airfield Driver Training through Dover AFB 436 OSS.

1.10 Utility Metering Requirements:

1.10.1 Permanent metering shall be provided for electric, natural gas, and water utilities at every Dover AFB facility so that utility consumption for each facility can be monitored and tracked over time. Metering of fire water service is not required. Whenever possible electric meters shall be located inside the electrical room, otherwise they shall be located in the mechanical room. Water meters shall be located inside the mechanical room. Gas meters shall be located on the building exterior at the gas service entrance at the rear of the building. Electric, natural gas, and water meters shall be remote readable. The UFGS sections applicable to utility meters are as follows:

Electric - 26 27 13.10 30 and 26 27 14.00 20 Gas - 33 51 13.00 30 Water - 33 12 33.00 30

Additional guidance is provided in AMRS Meter Specifications 4 Oct 2016 Rev 4 (Appendix D) (by attachment).

1.10.2 UFC 3-410-01, Heating, Ventilating, and Air Conditioning Systems requires that building electricity, water, and natural gas be included in the HVAC Direct Digital Controls minimum points list. These points must be visible to the Dover Air Force Base’s Energy Management and Control System (EMCS). All utility metering devices shall be connected to the Base’s EMCS.

1.10.3 Use of utilities for temporary contractor facilities, site construction activities, or permanent facilities prior to acceptance by the Government will be permitted. Utilities for these purposes shall be metered and billed to the construction contractor. Construction utility metering is not required to be remote readable.

1.11 System Maintainability Requirements. System maintainability is a critical aspect of a facility.

Provide adequate clearances around all pieces of equipment for periodic maintenance, inspection and cleaning. Provide manufacturer’s recommended minimum clearances or code required clearances, whichever is more stringent. System maintainability shall be coordinated between all systems. Service of one piece of equipment shall not require disturbance of adjacent equipment (for example do not block access to lights with piping or conduit).

1.11.1 System maintainability has three broad categories. The design analysis and O&M manuals shall address the following features/procedures in detail.

1.11.1.1 Routine Maintenance (filters, lights, lubrication, inspection, etc.) requires the most frequent and easiest access. Where maintenance access requires the use of portable ladders they shall be no more than 10’ maximum. Provide adequate space to use them properly. Access requirements over 10’ require ship ladders, stairs, platforms, catwalks, etc. unless approved otherwise by Dover AFB.

1.11.1.2 Component Replacement (coils, fans, motors, etc.) requires less frequent access.

However since this normally has the greatest impact on the facility user this work must be done quickly and efficiently. Provide all items necessary to perform these tasks (work platforms, equipment access hatches/panels, hoists, cranes, freight elevators, ladders, stairs, etc.).

1.11.1.3 Equipment Replacement (air handling unit, switchgear, boilers, heat pumps, etc.)

requires the least access. Since this occurs very seldom the need for permanent equipment to support these tasks is not required. However, equipment replacement must be accommodated and the facility shall include items such as removable wall sections, access routes, etc. to allow replacement with the least amount of collateral damage.

1.11.2 All equipment, including filters, controls, control valves, backflow preventers, and coils shall be easily accessible and have ample room for servicing, inspection, and cleaning. Isolation valves shall be provided for each HVAC unit, zone, branch, long runs, etc. as necessary for proper isolation and maintenance. Coils shall be fully removable without requiring demolition of any building components. Piping configuration at all coils shall include unions to facilitate easy removal.

1.11.3 The design shall ensure that all maintenance and repair activities can be performed safely and efficiently without the need for extensive material handling (e.g. A-frames) or access equipment (e.g.

portable ladders over 10 feet).

1.11.4 Wherever possible locate all valves, pumps, strainers, controls, sensors, and other items requiring regular service such that they can be maintained from floor level. Provide permanent maintenance access where not accessible from floor level.

1.11.5 Coordinate locations of piping, conduit, etc., to avoid blocking access to cranes, hoists, ladders or similar items even if it necessitates longer runs of the pipe or conduit.

1.11.6 All above ceiling utilities (cable trays, ductwork, junction boxes, utility piping, etc.) shall be accessible for a worker to reach two sides plus the service side with a minimum 3'-3" (1 m) clearance (greater if required for component maintenance/disassembly).

1.11.7 Water treatment systems for boilers/chillers/geothermal systems shall be designed and installed such that chemical handling is accomplished at floor level.

1.11.8 Light fixtures shall be readily accessible. Do not install fixtures in ceilings directly above stairs, instead install above landings or consider wall sconces.

1.11.9 Mechanical and Electrical Room Equipment Layout Plans. The project Design Analysis shall include verification of adequate space for all mechanical and electrical room equipment (i.e., air handlers, ductwork, boilers, pumps, piping, equipment panels, meters, chemical feed tanks, etc.). The construction drawings shall show equipment location, required clearances and maintenance access space. If necessary, provide floor plans, wall elevations, 3D or isometric views which fully demonstrate space adequacy.

1.12 LEED Requirements. Comply with Air Force Sustainable Design and Development (SDD) Implementing Guidance dated 02 June 2011 (see attached Appendix D). Attachments to the guidance memorandum are available upon request made to the DAFB Base Civil Engineer. The guidance states that all new vertical construction and major renovations shall meet the USGBC LEED 2009 Minimum Program Requirements (MPRs) as well as additional requirements. The designer shall evaluate the requirements of this guidance and how they pertain to a particular project before beginning the design process.

1.13 Access for People with Disabilities. Per UFC 1-200-01, use the ABA Standards and the special provisions of the Department of Defense Deputy Secretary of Defense Memorandum Subject: Access for People with Disabilities, October 31, 2008. Refer to Appendix A for a link to the ABA Standards and the DoD policy memorandum. Where the ABA Standards reference the IBC 2000, 2003 and supplements the applicable requirements of the latest version of the 2012 IBC are acceptable. Per the memorandum, facilities which qualify under the memorandum (essentially those which are open to the general public or where civilian workers may be employed) on military installations shall comply with the requirements of the Architectural Barriers Act (ABA) Guidelines for Accessibility. However, careful consideration shall be given during project design to avoid incorporating accessibility design and construction standards for those facilities or features which are specifically exempted from meeting accessibility standards (essentially those which are for use exclusively by able-bodied military personnel). Also, see HQUSAF/A7C Memorandum of 16 July 2009.

1.14 Contractor Quality Control. The USGS Quality Control specification requires that the Contractor Quality Control System Manager or designated alternate be on the site at all times during construction.

The term “on the site” shall mean “on Dover AFB”. The Contractor Quality Control System Manager or designated alternate may be assigned other duties (e.g., project superintendent, etc.) unless specifically required otherwise by Dover AFB. Regardless of whether or not the Contractor Quality Control System Manager is assigned additional duties, all UFGS specified Contractor Quality Control requirements must be satisfied.

1.15 Material Submittal Approvals. All material submittals (shop drawings, manufacturer’s product literature, calculations, etc.) for Dover AFB Base Civil Engineer managed (i.e., not Army Corps of Engineers MILCON) projects must be coded as “G” (requiring Government approval).

1.16 Control of Asbestos Containing Materials. Unified Facilities Guide Specification 02 82 16.00 20 “Engineering Control of Asbestos Containing Materials” shall be edited to 1) require applicability of the

Solicitation: FA4497-20-R-0004

Delaware asbestos code 16 Del Code, Chapter 78 Asbestos, 2) require the competent person to have a State of Delaware asbestos contractors or supervisors license, and 3) require asbestos containing materials abated at Dover Air Force Base to be disposed of within at an approved facility within the State of Delaware.

1.17 Design Deliverable Content. Design Deliverables submission requirements are generally identified in the contract Statement of Work, including the number and type of each deliverable. If not identified in the contract Statement of Work deliverables shall be as defined below. All design deliverables will be clearly identified with the respective correct contract and project numbers, the submission type (i.e., 50% Design Submission), and date of submission. Electronic copies of documents shall be in .pdf format, electronically bookmarked, and on compact disc. The standard requirement and content for Design Deliverables submissions are as follows:

Charrette Report. To include the design concept depicting proposed siting, building floor plan/elevations, architectural, mechanical, electrical, plumbing features, and all other items of work as generally described by the Scope of Work and as refined through discussions at the Charrette Meeting. The report should also include a list of all open issues requiring resolution. Hard copies of the report shall be bound and 8-1/2” x 11” format.

10% Design Submission. To include preliminary construction drawings for all engineering disciplines accurately depicting existing conditions and general aspects of the new work, including title sheet, siting, utilities, architectural floor plans and elevations, mechanical, electrical and plumbing systems and an outline of proposed specification sections.

50% Design Submission. A refinement of the previous Design Submission, including revisions required by any previous Design Submission Review Comments. The Submission shall include all information necessary to establish and convey to the Government reviewers that all engineering and design requirements have been or can be expected to be satisfied, to include the following:

1. Preliminary construction drawings including title sheet with project location plan, sheet index, abbreviation list if applicable.

2. Civil drawings shall include site plans showing site layout, including contractor staging areas, limits of construction, adjacent facilities and features affecting the work, existing and new grades and contours, pavement systems, layout of existing and new site utilities, E&S plans and details.

Architectural drawings shall include existing and new floor plans, roof framing plans, elevations, wall sections and details, door, window, and finish schedules.

3. Structural drawings shall include all structural design loads, foundation plans and details, roof wind zones and pressures.

4. Mechanical drawings shall include heating/ventilating/air conditioning plans, details and equipment schedules, control schematics, plumbing and fixtures, schedules.

5. Electrical drawings shall include new electric service schematics and panel schedules, new lighting fixture schedules and layout, branch circuit wiring with outlets, receptacles, and switches.

6. Communication drawings showing outlet locations, layout of communication cabling, and equipment configuration.

Solicitation: FA4497-20-R-0004

7. The drawings shall include all items incidental to the work in order to generally depict the requirements of construction.

8. New plans, elevations, sections and details shall be depicted separately from the corresponding existing views.

9. When utility systems are involved, design shall show the system layout, the location, size, capacity and details of system components, profiles, utility crossings and cross section details and equipment schedules.

10. When roads or other pavements are involved, design shall show the layout with controlling dimensions, features and appurtenances, drainage, grading, contours, profiles, cross sections detailing dimensions and types of materials, and relationships to structures and other pavement.

When airfield pavement is involved, airfield lateral clearances shall be indicated.

11. Fully edited “red-lined” construction specifications.

12. Basis of Design including all design assumptions, structural foundation, superstructure, pavement, drainage, heating/cooling load, electric service and feeder/branch circuit load/size calculations, lighting calculations, and others as may be involved, equipment selections, organized by engineering discipline. Previous design review comments annotated with clear and concise responses indicating actions taken on each item.

13. Color Boards depicting all interior/exterior finishes, if required.

100% Design Submission – A refinement of all previous Design Submission items, including revisions required by any previous Design Submission Review Comments. The Submission shall include all information necessary to establish and convey to the Government reviewers that all engineering and design requirements have been satisfied, to include the following:

1. Complete construction drawings clearly depicting all requirements of construction.

2. Fully edited specifications.

3. Basis of Design.

4. Color Boards.

Final “Issued for Construction” Design Submission - A refinement of all previous Design Submission items, including revisions required by any previous Design Submission Review Comments. The Submission shall include the following:

1. Signed and sealed construction drawings, specifications, and Basis of Design.

2. Color Boards.

1.18 Approval of Design Deliverables. When acknowledged by the Government that the requirements for the respective Design Submission has been satisfied, the Design Submission will be considered acceptable for that contracted design effort. The following factors could form the basis of an unacceptable Design Submission:

1. Failure to provide all required design submission items.

2. Poor quality drafting (i.e., drafting that does not meet the criteria contained in this Design Guide).

3. Incomplete specifications.

4. Defective or incomplete engineering calculations or design deficiencies including those based upon inappropriate assumptions.

5. Failure to adequately address previous design review comments.

6. Extensive design review comments.

2.0 Civil

2.1 General. Refer to UFC 3-201-01 “Civil Engineering” for guidance.

2.1.1 Design drawings shall include a project location plan showing the location of the project site on Dover Air Force Base. The plan shall show the Commercial Entrance Gate and the contractor’s access/haul route from the Gate to the project site.

2.1.2 The construction drawings shall include a project site plan showing the contractor’s material staging and construction trailer areas and location of temporary construction fencing. The location of the nearest electric service as a source of temporary service shall be considered when determining the location of the trailer. The drawings shall include all requirements for the temporary electrical service connection, including the service metering, disconnect, conductors, etc.

2.1.3 Project site plans shall indicate both “True North” and “Project North”. “Project North” shall typically be oriented upward on the drawing sheet (preferred) or to the left, unless approved otherwise by Dover AFB. “Project North” shall also be indicated on all plan view drawings, including floor plans and detail plans for all disciplines. “Project North” orientations shall be consistent between all sheets.

2.1.4 Survey Control. Site grading plans shall show horizontal and vertical control source(s) including benchmark identification, horizontal coordinates and vertical elevation information.

Benchmarks used or established by the designer and/or its contracted surveyors shall include State Plane Coordinates, horizontal and vertical datum. Submit survey data sheets on newly established benchmarks.

2.2 Roadways, Parking, and Sidewalks

2.2.1 The use of State of Delaware Department of Transportation (DelDOT) materials and mix designs for graded aggregate base, intermediate and wearing surface courses of hot-mix hot-laid asphalt concrete may be permitted if they comply with the respective UFGS criteria.

2.2.2 Standard parking lot configuration shall be perpendicular with two way circulation, with standard vehicle stall dimensions of 10’ width and 18’ depth, and minimum 26’ traffic aisle width.

Stall widths of 9.5’ and/or diagonal parking configurations (60 degree) shall only be considered in unusually constrained site plans with approval of the Dover AFB. Parking lot designs shall include a reasonable number of motorcycle parking stalls (approximately 5%) with a standard stall width of 5’, placed on concrete pavement and reasonably near the main facility entrance.

Solicitation: FA4497-20-R-0004

2.2.3 All roadway and parking lot curb shall be integral curb and gutter and shall have a cross section profile as shown for DelDOT Type 3 Integral Curb and Gutter. Upon approval by Dover AFB, exceptions may be permitted in situations where small portions of existing curb are replaced and must match existing. Provide a reverse slope gutter pan to permit drainage in situations where there is little or no available longitudinal slope along the gutter line.

2.2.4 In general all streets and parking lots shall be provided with integral curb and gutter. Upon approval by Dover AFB, exceptions may be permitted for perimeter control, service and access roadways or similar pavement areas. The use of parking bumpers or wheel stops at vehicle parking areas is not permitted. Where the use of integral curb and gutter is not possible, specify concrete filled pipe bollards.

2.2.5 Utilize DelDOT standard drawings for curb ramps. Although not required by the Architectural Barriers Act (ABA), all curb ramps on Dover AFB will include truncated dome detectable warnings consisting of 2’ x 2’ (nominal) precast concrete pavers, as manufactured by Hanover Architectural Products, in “Red 15” color for concrete sidewalk locations, or approved equal by Dover AFB. The precast detectable warnings pavers shall be installed in a mortar bed or monolithically cast within the concrete sidewalk pavement with a minimum 4 inch thick concrete base, with paver joints of suitable width to accept either an appropriate grout or sealant.

2.2.6 Provide connecting sidewalks from all building entrance/exits. Mechanical, electrical, and communications room entrances shall be accessible via sidewalks or pavements.

2.2.7 Where required for construction activities, project designs shall include temporary traffic control plans for any road or lane closures. The design of temporary traffic control including signs and devices for road and lane closures and detour routes shall be provided in accordance with the requirements of the Federal Highway Administration “Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD)”, latest edition.

2.2.8 Consider utilizing permeable paving systems for certain specific areas such as building equipment service access lanes which are located in non-prominent areas and which will receive minimal traffic. Use of permeable paving systems must be approved by Dover AFB.

2.2.9 Curbs shall be constructed on graded crushed aggregate in a minimum thickness matching adjacent roadway construction. Sidewalks shall be a minimum of 4 inches thick concrete and be provided with welded wire fabric reinforcement constructed on a minimum of 4 inches of graded crushed aggregate or structural fill. Sidewalks which cross vehicle entrances shall be a minimum of 6 inches thick concrete and provided with welded wire fabric reinforcement constructed on a minimum of 6 inches of graded crushed aggregate or structural fill or greater if required based on vehicle loads.

2.2.10 Access for Fire Fighting Vehicles. Provide fire department access for all newly constructed buildings in accordance with NFPA 1 Chapter 18. Fire department access roads shall be no less than 20 feet unobstructed and designed for the weight of apparatus. Dead end roads must contain a turnaround built for the apparatus. The Dover AFB vehicle classification is a 75' Quint made by E-1.

This is a 75 foot ladder truck including a self contained pump and 500 gallons of water with the following characteristics:

Gross vehicle weight is 53000 lbs Vehicle length is 37 feet 2 inches Wheelbase is 223.5 inches

Solicitation: FA4497-20-R-0004

Height of vehicle with ladder stowed is 11 foot 6 inches

2.2.11 Roadway Cut Repairs. All roadway cuts, such as for open cut utility crossings, shall be permanently repaired with final paving within 7 calendar days from initial excavation, unless approved otherwise by Dover AFB. Temporarily patching with stone at the roadway surface and opening to vehicular traffic is not permitted. The use of flowable fill at the roadway surface as a temporary patch material is permitted.

2.3 Concrete for Airfield Pavements

2.3.1 Specifications for concrete airfield pavements shall comply with ETL 06-2 “Alkali-Aggregate Reaction in Portland Cement Concrete (PCC) Airfield Pavements, Section 12: Avoiding ASR in New Construction”. If a potentially reactive aggregate must be used, then a low-alkali concrete mix design is mandatory and active mitigation methods must also be used.2.3.2 In accordance with 06-2, recycled concrete from concrete undergoing ASR reactions should not be recycled in any application within the airfield pavement structure, e.g., use as aggregate in PCC mixtures, as base course aggregate, or in drainage layers. HQ AFCEC should be contacted for assistance if an ASR-reacting concrete is being proposed for recycling on an airfield paving project.

2.4 Concrete for Non-Airfield Pavements and Structural Concrete

2.4.1 Alkali-Silica Reaction (ASR) Mitigation. Project specifications shall require the use of concrete mix designs which demonstrate mitigation of the potential for ASR. Only concrete mix designs that have been tested to demonstrate required ASR mitigation characteristics shall be acceptable. As a minimum, concrete mix designs shall be tested in accordance with the requirements of AASHTO T303 or ASTM C1567, as applicable based on the type of cement proposed for use, and shall demonstrate less than 0.08% expansion of mortar bars at 28 days after casting. The use of DelDOT approved concrete mix designs which have been tested and demonstrate mitigation of ASR as required above is acceptable. Testing results for compliance with ASR mitigation shall be submitted with the proposed concrete mix designs for approval prior to use.

2.4.2 In general, for standard cast-in-place concrete construction, the project specifications shall require the use of curing compound conforming to the requirements of ASTM C309 “Liquid Membrane-Forming Compounds for Curing Concrete”, for Type 2 (white pigmented), Class B designation. For concrete surfaces which are to receive an architectural finish, the use of polyethylene sheeting in conjunction with continuous moisture curing is acceptable. Clear curing compound is not permitted. All exposed concrete surfaces shall be protected with curing compound immediately after final concrete finishing is accomplished. Surfaces exposed after formwork removal prior to the end of the required curing period shall be provided with supplemental curing materials until the curing period ends.

2.4.3 All concrete pavements and slabs on grade shall be provided with sufficient crack control and expansion joints. Locations and details of control, expansion, and construction joints shall be shown on the design drawings. Building floor slab joints shall be located to align with corners of column piers or isolation pads that are exposed at finish floor elevation. Exposed concrete piers or isolation pads shall be designed such that corners align with slab joints in order to eliminate crack propagation in the adjacent slabs. Slab joints shall be aligned with joints in adjacent slabs.

2.4.4 To minimize crack development or propagation, all non-airfield concrete (whether designed as reinforced or non-reinforced) including but not limited to pavements, sidewalks, door stoops, floor slabs and equipment pads shall be provided with either steel reinforcing bars or welded wire fabric or

Solicitation: FA4497-20-R-0004 a combination of both in a minimum amount as required by the American Concrete Institute for temperature and shrinkage reinforcement. Fiber reinforcement alone shall not be allowed.

2.4.5 In accordance with ASTM C94 “Standard Specification for Ready-Mixed Concrete” all ready-mix concrete deliveries shall be accompanied by a batch delivery ticket which includes all of the information required by ASTM C94 as well as any additional information required by the UFGS specification 03 30 00 “Cast-In-Place Concrete”. The batch delivery ticket can be a computer printout of the batch ingredients including type and amount of cementitious materials, quantity and type of course and fine aggregates, water quantity, and type and quantity of any admixtures or other additives. The batch delivery ticket shall be available for Government inspection on site during placement of the load of concrete and then submitted as a Material Submittal. Batch delivery tickets which do not clearly indicate that the concrete mix meets the specified and approved mix design shall be cause for immediate rejection of the load.

2.5 Site Utilities

2.5.1 General: Project drawings shall incorporate a coordinated site utility plan which shows all existing and new site utilities including water, storm, sanitary, gas, electric and communications lines.

Irrigation plans can be separate. When possible, avoid or minimize the placement of utilities within new or existing paved areas. Also avoid or minimize the placement of utility access points such as manholes, cleanouts, or valve boxes, within new or existing paved areas.

2.5.1.1 Above grade utility features (fire hydrants, PIVs, FDCs, electrical transformers and switchgear, gas meters, etc.) which are located in or within 10 feet of adjacent vehicular traffic areas (without concrete roadway curb) shall be protected by concrete filled Schedule 40 steel pipe bollards. Placement of bollards shall not obstruct operational or maintenance access to the protected feature. Place concrete pavement within and including the area of bollards. Electrical transformers and switchgear shall be provided with a minimum of 10 feet clearance on door sides of the equipment. Bollards adjacent to facilities shall be painted Dover AFB “Eagle Feather Tan”. Stand alone bollards away from buildings shall be painted Dover AFB “Bald Eagle Brown”. A 6-inch wide band of white reflective tape shall be affixed to all bollards in non-paved areas. An additional 6-inch wide band of red reflective tape above the white band shall be affixed to bollards in paved areas.

2.5.1.2 Provide square or circular reinforced concrete collars around all cleanouts, valve boxes, monitoring wells or similar features located within turfed areas (collars not required within paved areas). Size of the collar shall be 8 inches outside of the cleanout or valve box.

2.5.1.3 All new underground utility line installations (with exception of electric and communications) shall include a tracer wire with at grade terminals.

2.5.1.4 Existing underground utilities proposed to be taken out of service as a part of the project design shall not be abandoned in place. Discontinued utilities under existing paved areas shall also be removed and the paved areas appropriately patched. Discontinued utilities shall be removed back to the system main. Removal of water services shall include the service connection at the distribution main and the necessary repair of the main resulting from the removal work (i.e., corporation stops and saddles or tees shall be removed and the main repaired).

This may necessitate isolation of the water distribution main and/or scheduling of a utility outage, therefore the design documents must address this requirement accordingly. Removal of sanitary and storm sewer laterals shall be to the main and resulting opening properly patched. Removal of

Solicitation: FA4497-20-R-0004 sanitary and storm sewer mains shall be to the nearest manhole. Utilities to be disposed of shall be properly tested (such as asbestos water line) prior to disposal.

2.5.1.5 Project plans shall include utility line profiles which depict existing and new surface grades, pipelines, utility crossings, and utility structures such as manholes, inlets, and valve boxes.

2.5.1.6 Project plans shall include utility trench details for paved and non-paved areas. For trench details within existing paved areas show the graded aggregate base stepped beyond each side of the maximum trench width a minimum of 12” and the asphalt or concrete pavement stepped beyond the graded aggregate base a minimum of 12”.

2.5.1.7 Equipment pads shall be reinforced concrete and be 4” minimum above finished grade and extend 12” minimum beyond all equipment. Provide a 24” depth minimum turndown at edges for protection against frost heave. Pad surfaces shall be sloped to drain properly, within the permitted limits of the equipment to be mounted thereon. For example, oil filled transformers are limited in the degree of slope from horizontal.

2.5.2 Gas Distribution: DAFB owns the gas system on its property. Gas line installation (including regulators and meters) shall be included in the construction. Provide dirt legs and isolation valves at each piece of gas equipment. The DAFB gas distribution system pressure is 35 psig.

2.5.3 Storm Water Systems:

2.5.3.1 Structures. Manholes and drainage inlets shall be precast concrete and shall be used at all changes in horizontal or vertical alignment. Inaccessible junction boxes (i.e., without manhole lids) shall not be used. Maximum spacing of manholes or drainage inlet structures shall be 300 feet. Cast-in-place steps shall be used in all drainage structures with a depth greater than 4-feet.

Manholes and drainage inlets shall have cast-in-place concrete flow channels.

2.5.3.2 Pipe. Minimum pipe size shall be 15 inch unless approved otherwise by Dover AFB.

Allowable pipe types are 1) reinforced concrete pipe (RCP) Type III, IV, or V as appropriate for the depth of cover and type of loading, and 2) high density polyethylene (HDPE). Non-allowed pipe types are ductile iron, corrugated steel, and corrugated aluminum.

2.5.3.3 Building downspouts shall discharge directly to an underground storm water collection system. Building downspout collection piping shall be PVC SDR 35 or HDPE and a minimum of 6 inch diameter. Transitions shall be through painted cast-iron boots at grade.

2.5.4 Sanitary Sewers: The Sanitary Sewer Collection System on DAFB is owned and maintained by the Kent County Department of Public Works (Department). System ownership by the Department includes the building lateral and begins at the lateral cleanout or at 5-feet from the building line, whichever is closest to the building. Project design and construction must comply with the Department’s requirements. Project designs shall provide for a cleanout 5 feet from the building. In addition, the DAFB Standard Specification ”Dover AFB General Requirements” contains specific contractor requirements regarding permits, impact fees and notifications. For Design-Build projects, upon completion of the design documents, the project designer shall submit the proposed construction plans to the Department for its determination of any applicable Equivalent Dwelling Unit (EDU) count and related County Impact Fee, and any applicable Sewer Connection Permit Fee. For Design- Bid-Build projects, upon completion of the design documents, the project designer shall provide to the Government the estimated EDU count and any related County Impact Fee or Sewer Connection

Solicitation: FA4497-20-R-0004

Permit Fee based on current Department information. This information shall then be incorporated within the Request for Proposal by the Government.

2.5.4.1 The preferred material is Polyvinyl Chloride (PVC) pipe and fittings for new sanitary sewer gravity mains and laterals.

2.5.5 Water Distribution: The Water Distribution System on DAFB is owned and maintained by Tidewater Utilities, Incorporated (TUI). System ownership by TUI includes the water supply wells, storage facilities, distribution piping system, fire hydrants and lateral piping, and potable and fire water service lines to buildings and facilities. TUI ownership terminates at the curb stop for potable water service lines and at the post indicator valve (PIV) for fire water service lines. Curb stops for potable water services shall be located at five (5) feet from the building line. PIV for fire water service lines will be located in accordance with NFPA requirements.

2.5.5.1 The preferred material is Polyvinyl Chloride (PVC) pipe and fittings meeting the requirements of AWWA C900, “Polyvinyl Chloride (PVC) Pressure Pipe, and Fabricated Fittings, 4 In. Through 12 In. for Water Distribution” or AWWA C905 “Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings 14 In. Through 48 In.” for underground water distribution and fire suppression service lines. Ductile-iron pipe and fittings may also be specified.

2.5.5.2 Domestic Water Service and Fire Suppression Service will not utilize a common service pipeline unless approval for an exception is obtained from the Dover AFB Base Civil Engineer.

2.5.5.3 Connections to an existing water distribution system main for a domestic water service line may be made either by the “wet tap” method or by installation of a new “tee” in conjunction with a scheduled utility outage. All “wet taps” greater than four (4) inches must utilize a “tapping tee”. The diameter of the tapping hole shall not be less than the required service line size. Fire suppression system service lines shall typically be made by the installation of a new “tee” unless the designer can demonstrate that a “wet tap” can be made with the resulting tapping hole diameter of no less than the fire suppression service line diameter requirement.

2.5.5.4 Disinfection of potable-water system piping and appurtenances for distribution mains and building laterals shall be in accordance with the requirements of AWWA C651, Disinfecting Water Mains. The following steps are required: 1) a Certificate of Approval for Construction from the Office of Drinking Water must be obtained before construction begins, 2) the waterline installation must be observed by a TUI inspector, 3) the new water lines must remain isolated from the DAFB distribution system using a resilient seal MJ valve until approval to activate the main is provided by TUI, 4) the contractor must inform TUI when construction is complete, 5) TUI personnel will collect required samples from the new section of waterline, 6) TUI will obtain the Approval to Operate from the Office of Drinking Water, 7) TUI will activate the new section of waterline.

2.5.5.5 Fire Hydrants: Fire hydrant style, placement, spacing, orientation, and protection shall be in accordance with requirements contained within UFC 3-600-01, Fire Protection Engineering for Facilities.

2.5.5.5.1 Fire hydrants shall be above ground, dry barrel, traffic type meeting the requirements of AWWA C502, “Dry Barrel Fire Hydrants”, with National Standard Threads (NST), having two 2-1/2 inch hose outlets and one 4-1/2 inch main pumper suction connection, in accordance with NFPA 24 and NFPA 1963, Fire Hose Connections. Main

Solicitation: FA4497-20-R-0004 operating nut and nozzle cap nut design shall be the “pentagonal” or “five-point” type.

Recommended hydrant is American Darling B-62-B, or approved equal by TUI.

2.5.5.5.2 Fire hydrant installation shall be in accordance with the requirements of AWWA C600, “Installation of Ductile-Iron Water Mains and Their Appurtenances” and manufacturer’s installation details. Plan details shall show the centerline height of the main pumper nozzle at approximately 18” above final grade with an 18-inch circular or square reinforced concrete collar at hydrant base for hydrants located within turfed areas and a drainage pit filled with course gravel at the hydrant elbow drain port.

2.5.5.5.3 Fire hydrants shall be painted the Bald Eagle Brown color. TUI will paint fire hydrant bonnets the appropriate color based on flow capacity and actual flow tests in accordance with NFPA 291, “Fire Flow and Marking of Hydrants”.

2.5.6 See Sections 10 and 11 for electrical and communications requirements.

2.5.7 The temporary electric service connection source location for construction activities, including the requirement for a temporary transformer if needed, shall be shown on the project construction drawings.

2.6 Existing Groundwater Monitoring Wells: Existing groundwater monitoring wells located within the construction footprint shall either be abandoned in place or have the tops adjusted to new grade. If unable to be adjusted to new grade the wells shall be abandoned in place and replaced at an adjacent location approved by Dover AFB. DAFB will determine the necessary disposition of existing wells when identified during the design process and will provide specific monitoring well requirements to the designer for incorporation in project documents. The designer shall coordinate with the DAFB Environmental Management Office 436 CES/CEAN (302) 677-6842 for specific guidance on projects where monitoring wells are present at the construction site.

2.7 Excavation and Grading:

2.7.1 Site plans shall identify a project Benchmark which provides horizontal and vertical survey controls.

2.7.2 Whenever possible, project designs should endeavor to balance earthwork cut and fill quantities.

Existing soils which are suitable for reuse should be reutilized to…