Attachment 2 - Peterson SFB Design Guide.pdf

Peterson Space Force Base Design Guide

6 May 2024

1. 0BINTRODUCTION

2. 1BCIVIL

3. 2BLANDSCAPE ARCHITECTURE

4. 3BSTRUCTURAL ENGINEERING

5. 4BARCHITECTURAL

6. 5BFIRE PROTECTION

7. 6BMECHANICAL ENGINEERING

8. 7BELECTRICAL ENGINEERING

9. 8BCOMMUNICATIONS

10. 9BSECURITY

11. 10BCOMPUTER AIDED DRAFTING (CAD) AND SURVEYING

12. 11BSPECIFICATIONS

13. SHOP DRAWINGS

1. 0BIntroduction

1.1. The process of project design and construction is based on a multitude of codes, regulations, and other governing documents. This Design Guide has been written to address the unique requirements of Peterson Space Force Base (PSFB). In addition, not all aspects of a project’s requirements are addressed in codes and regulations. As such, this guide provides information that may be missing from those other regulatory documents.

1.2. This document shall be used for all construction projects produced for PSFB. Because requirements change frequently, this document will be updated periodically. Please ensure that the most current edition of this document is obtained before beginning any project. The edition of this document that is provided at project solicitation shall continue on through the project, regardless of future updates.

1.3. This document is a supplement to the PSFB Installation Facilities Standards (IFS). The IFS takes precedence. The IFS is available on the internet at https://www.wbdg.org/ffc/af-afcec/installation-facilities-standards-ifs.

2. 1BCivil

2.1. STORM DRAINAGE:

2.1.1. All storm drain pipe shall be double-walled corrugated polyethylene (CPE) with corrugated exterior wall and smooth interior wall, unless structural requirements dictate otherwise. Pipes smaller than 15-inch diameter may be of high density polyethylene (HDPE) or polyvinyl chloride

(PVC).

2.1.2. Certain areas of PSFB storm drainage eventually flows to retention basins. Since this storm water does not flow directly into waters of the United States, the requirement for water quality control will be evaluated on a case-by-case basis by the Government.

2.1.3. The use of new retention basins is strictly limited and must be approved by PSFB. It is preferred that detention basins be used with a detention time of no more than 24 hours. Consideration shall be given to limiting the possibility of creating an attractive haven for water fowl which could create a flight pattern across active airfield areas, thus introducing a bird strike hazard.

2.2. PAVEMENTS:

2.2.1. The term "pavement" used in this document shall refer to either hot asphaltic concrete or Portland cement concrete.

2.2.2. Permeable pavers are required for new parking lot parking spots, unless other pavement solutions are approved by the PSFB. Striping shall be accomplished using contrasting colored paver bricks as opposed to painting. Existing asphalt parking lots which are being repaired are not required to be done with permeable pavers.

2.2.3. All demolished pavement materials shall be removed from PSFB unless otherwise agreed upon by the Government. Asphalt and concrete materials shall be sent to a local recycling center to the maximum extent possible.

2.2.4. The following specifications shall be used. These specifications take precedence over other contracts, such as MACC or USACE.

PSFB SECTION 32 01 17 SEALING OF CRACKS IN BITUMINOUS ROADS

PSFB SECTION 32 11 23 AGGREGATE BASE COURSE

PSFB SECTION 32 12 16 ASPHALT PAVEMENTS

PSFB SECTION 32 13 12 REPAIR OF CONCRETE AIRFIELD PAVEMENTS

PSFB SECTION 32 13 13 CONCRETE PAVEMENTS FOR ROADS

PSFB SECTION 32 17 24 PAVEMENT MARKINGS

2.3. CURBS/GUTTERS:

2.3.1. The curbs for roads and parking lots shall have integral curb and gutter, unless otherwise approved by PSFB. Reference to “curb” in this document pertains to integral curb and gutter.

2.3.2. New curb that is adjacent or joins with existing curb shall match the profile of existing. Otherwise, new curb shall comply with the IFS.

2.3.3. All road and parking lot curbs shall be concrete, unless approved otherwise by PSFB. Concrete shall be minimum 4,000 psi compressive strength with a maximum water/cement ratio of 0.45.

2.3.4. Curbs shall have control joints every 10 feet and expansion joints every 100 feet. If curb adjoins pavement or sidewalk, joints shall align with the pavement or sidewalk joints to the maximum extent possible.

2.3.5. Expansion joints shall be formed with pre-formed water resistant board material and sealed.

2.3.6. New concrete curb shall be cured at least 3 days before allowing any construction traffic on it. Final responsibility for protection of new curb against damage by construction traffic lies with the Contractor.

2.3.7. Curbs poured against the edge of sidewalks shall not have preformed filler board joints. A bond breaker shall be used to keep the curb and sidewalk from bonding.

2.4. PAVEMENT PAINTING AND STRIPING:

2.4.1. Epoxy paint which is on the CDOT Approved Products List may be used with approval by PSFB.

2.4.2. Pavement paint colors for roadways shall comply with MUTCD and CDOT requirements, as applicable.

2.4.3. Thermoplastic paint may be used with approval by PSFB.

2.4.4. Parking lot striping shall be white per MUTCD color specifications unless noted otherwise.

2.4.5. Painted handicap symbols on pavements shall not be used.

2.4.6. Crosshatching in parking lots shall be 4 inch wide lines at 45 degrees to the curb and spaced at 24 inches on center, perpendicular to each stripe.

2.5. SIDEWALKS:

2.5.1. Sidewalks, including adjacent pads and steps, shall be concrete with a minimum compressive strength of 4,000 psi and maximum water/cement ratio of 0.45.

2.5.2. Control joint spacing shall be equal to the width of the sidewalk up to 10 feet. The spacing for sidewalks over 10 feet in width shall be per each individual project. Control joints shall be located to minimize the probability of shrinkage cracking.

2.5.3. Expansion joints shall be installed every 100 feet of run and at intersections to other objects. Joints shall be formed with 1/2" pre-formed filler board and sealed. Color of sealant shall match the color of the concrete at 28 days.

2.5.4. Isolation joints shall be used at objects which are within or intrude into the sidewalk. Joints shall be formed using 1/2" pre-formed board material and sealed. Valve box risers are not required to be isolated.

2.5.5. Sidewalk ramps which discharge into vehicle traffic shall have raised dot detectable warning indicators, color dark red. Warning indicators shall be pre-manufactured products designed to be cast into wet concrete.

Cementitious or masonry tiles are not allowed. Surface applied indicators may be considered by the Government. Color of indicator shall extend through the entire thickness of the product. Sidewalk ramps which do not discharge into vehicle traffic shall not have detectable warning indicators.

2.6. UTILITIES

2.6.1. Water and sanitary sewer lines shall be polyvinyl chloride unless structural reasons dictate otherwise. Natural gas lines shall be yellow polyethylene. All new utility lines shall be of non-metallic materials to the maximum extent possible. If metallic lines are used, adequate forms of corrosion control shall be provided in the form of passive systems (i.e.

sacrificial anodes). All plastic lines to include gas, water, waste water, and storm pipe shall have a minimum #12AWG copper tracer wire with HMWPE jacket for direct burial. Tracer conductor shall be fixed to polyvinyl chloride pipe by means of zip ties suitable for use underground. Utility marking/warning tape shall be installed in trench approximately 12 inches above all utility pipe..

2.6.2. Concrete equipment pads for mechanical, electrical, and other types of utilities shall be constructed so that the bottom of the pad is at least 4 inches below finished grade and top of pad is at least 4 inches above finished grade. Pads shall be supported by a minimum 6-inch layer of gravel base course (e.g. CDOT Class 6) compacted to 90% modified Proctor density.

Concrete for pads shall be 4,000 psi compressive strength with a maximum water/cement ratio of 0.45.

2.6.3. Utilities shall be bored under roadways. Cutting across roadways is normally not allowed, unless specifically approved by PSFB. Cutting across driveways, such as parking lot access points, is allowed unless operational requirements of the facility dictate constant access, in which case utilities shall be bored under the driveway. Horizontal Direction Drilling tracer wire shall be used in conjunction.

2.7. TRAFFIC ENGINEERING

2.7.1. PSFB receives deliveries from various sized vehicles. As such, all designs shall consider the requirement to accommodate a WB-67.

2.7.2. The speed limit on PSFB is 30 mph unless posted otherwise.

2.7.3. The Colorado Springs Traffic Criteria Manual may be used if a requirement is not covered by DoD criteria.

2.7.4. The design vehicle for determining emergency vehicle access is a P-24 structural truck. Specifications can be provided upon request.

2.8. SITE IMPROVEMENTS

2.8.1. All site development projects shall comply with the "Public Rights-Of- Way" code per the United States Access Board.

2.8.2. Unless noted otherwise, step risers shall have a batter of 1 inch.

Concrete step nosing shall have a 1/2 inch radius. Treads shall have a 2% slope, either transverse or longitudinal, to facilitate drainage.

2.8.3. The typical handrail and guardrail used at PSFB is manufactured from 1-1/4” nominal diameter standard steel pipe, painted. Other styles and designs may be considered. Architectural compatibility with other facilities in the vicinity and the type of architecture of the facility will drive the design.

2.8.4. Retaining walls may be either cast-in-place concrete or segmented masonry. Zero batter is preferred for both types of construction.

2.8.5. Walking path steps:

2.8.5.1. Tread length shall be 11 inches minimum and 17 inches maximum, measured from nose-to-nose of step. Maximum riser height shall be 7 inches, minimum height 4 inches. Tread length shall be calculated as follows: Tread Length = 25 - (Riser height x 2).

2.8.5.2. Landings or sidewalk sections between stair sections shall be at least 5 feet long.

2.8.5.3. The vertical rise between landings shall be no higher than 5 feet.

2.8.6. Miscellaneous concrete site features shall be minimum 4,000 psi compressive strength and maximum water/cement ratio of 0.45.

3. 2BLandscape Architecture

3.1. The base has traditionally had one overall philosophy regarding landscape design. This philosophy has been based heavily upon creating a well-landscaped image commensurate with a major Space Force Headquarters base, while adhering to sustainable landscape principles. There are several widely recognized and often used landscape details which have become an integral part of landscape design at PSFB. These should be used routinely at all landscape projects. These details are listed here, and several are discussed in more detail elsewhere in this section.

3.2. Comply with UFC 3-201-02, Landscape Architecture

3.3. Comply with Installation Facilities Standards (IFS)

3.4. Comply with ANSI 300 (part 5), American National Standard for Tree Care Operations - Tree, Shrub, and Other Woody Plant Management – Standard Practices (Management of Trees and Shrubs During Site Planning, Site Development, and Construction).

3.5. Protection of landscaping shall comply with PSFB Specification Section 01 56 39, Temporary Tree and Plant Protection.

3.6. All landscape areas to receive plant material (trees, shrubs, vines, ground cover, perennials, annuals, ornamental grasses, seed or sod) shall have a horticultural soil analysis performed prior to final design (if new or renovation/rehab project) or application of fertilizer or amendments (if doing maintenance). A standard soil test typically includes the following:

Texture (estimated by the hand-feel method)

Organic matter (reported as a percent of the total soil)

About two-thirds of a pound of nitrogen per 1,000 square feet will be released (mineralized to nitrate) during the growing season for each one percent organic matter present.

pH

Lime (CaCO3 reported by percent)

On soils with “free lime”, sulfur will not effectively lower the pH.

Soluble salts (reported in mmhos/cm or dS/m)

Nutrients (reported in parts per million)

Nitrate nitrogen

Phosphorus

Potassium

Micronutrients such as copper, iron, manganese and zinc

3.7. PRE-EMERGENT HERBICIDE: All landscape areas, with the exception of native seed areas as applicable, shall be sprayed with an approved pre-emergent herbicide to prevent weed growth prior to soil preparation of shrub beds and turf areas. Refer to Manufacturer recommendations. Do not spray herbicide if wind causes drift.

3.8. AMENDMENTS: Many areas of PSFB have a sandy loam soil

composition. An approved compost shall be amended over any disturbed areas as per recommendations from a horticultural soil test. This mixture shall be tilled in before seeding.

3.9. FINAL GRADE: The final grade for all landscape areas that receive mulch shall be smooth and sloped to drain prior to installation of the mulch materials. Do not use the mulch material to create a level, finished surface over improperly smoothed and un-graded soil surfaces.

3.9.1. Final grade for all surfaces to receive sod or mulch shall be at least 2 inches below adjacent hard surface e.g., top of curb or sidewalk and slope away at a minimum grade of 2% a distance of at least one and a half feet.

3.9.2. Final grade for all surfaces to receive seed shall be at least 1 inch below adjacent hard surface e.g., top of curb or sidewalk and slope away at a minimum grade of 2% a distance of at least one and a half feet.

3.10. LANDSCAPE REQUIREMENTS AT BUILDING FOUNDATIONS: Turf grass and native grass shall not be permitted to abut building foundations due to irrigation and maintenance concerns. All facility foundations shall have a minimum 4'-0" wide buffer zone to any turf or native grass areas with a steel edge separator. This buffer area shall contain shredded wood mulch or approved rock mulch materials. Approved plant material with drip irrigation and wood mulch is allowed and encouraged in foundation areas within 50 feet of the front entry. Two to four inch diameter river cobble rock can be utilized along low visibility façade foundations as appropriate.

Mechanical yard enclosures and screen wall applications shall be treated similar to building foundations with an appropriate buffer zone to adjacent turf areas.

3.11. UNOBSTRUCTED SPACE PERIMETERS or CLEAR ZONE LANDSCAPES:

Landscaping (including trees, shrubs, vines, ground cover, perennials, annuals, ornamental grasses, seed or sod) shall be required at the perimeter of building unobstructed spaces or clear zones to soften and buffer the areas. Plants may be grouped for better visual impact and shall be a variety of deciduous and evergreen materials. See IFS for specific requirements for sites.

3.12. Provide physical separation between different landscape surfaces e.g., lawn area and planting bed. The separation material must be galvanized steel edging at all applications. Concrete edging is also permissible with approval of the Base Landscape Architect. This will help physically separate the planter mulches such as rock or wood from nearby materials such as turf grass or a different mulch type. Utilize perforated edging where drainage is problematic.

3.13. Use of inorganic or inert mulch should be limited. Use of low growing native grass mix is preferred.

3.14. At all landscape areas to receive mulch, do not use underlayment fabrics. These have caused numerous maintenance problems and are undesirable for use.

3.15. Approved organic mulch shall be local Colorado wood waste, providing an environmentally sustainable product, containing no pallets or construction debris, aged and rotated to eliminate tree pathogens (or approved equal). All materials shall be installed at a settled depth of four inches (4”).

3.16. Inorganic or inert mulch material shall be 1.5” Arkansas Tan river rock (or approved equal) which may be utilized directly adjacent to building foundations. Areas with existing red rock may continue to use the red rock, but blending with existing may be required to mitigate differences in color. A cobble consisting of 2” to 4” diameter blue/gray river cobble is permissible where approved by the Base Landscape Architect.

This material is seen as typically used in swales.

3.17. MINUMUM PLANT SIZES: Plant sizes and condition shall be based upon ANSI Z60.1 – American Standard for Nursery Stock. The recognized standard for PSFB is to plant deciduous trees with a 2 1/2 inch caliper trunk and evergreen trees a minimum of ten feet tall. Plant shrubs in a minimum #5 size container overwintered at least one growing season in Colorado. Perennials shall be in a minimum #1 size container

3.18. TREES

3.18.1. Deciduous trees shall be of specimen quality, have a single straight stem and a fully branched crown unless specified otherwise (e.g., for character).

3.18.2. Evergreen trees shall be of specimen quality, have a single straight stem (unless approved otherwise by the Government) and be exceptionally heavy branched and well-shaped to within 6 inches from the ground unless specified otherwise (e.g., for character).

3.18.3. Tree Wrap: All thin or smooth barked deciduous trees shall be wrapped with an approved light in color, bio-degradable tree wrap to prevent sun scald. Wrap from the bottom up so that layers shed water. At the top, secure the wrap with bio-degradable tape or office staples. Never use nylon cord, wire, or fiber-reinforced tape.

3.18.4. Tree mulch: All trees shall be mulched with an organic mulch (specified above). The mulch area (ring) shall be a minimum six foot (6’) in diameter all trees or one foot (1’) beyond the drip line for larger evergreen trees.

3.19. FERTILIZER

3.19.1. Do not fertilize trees, shrubs, or ornamental grasses at time of planting. Annuals and perennials may be fertilized at time of planting.

3.19.2. Fertilize sod and seed areas according to recommendations from a horticultural soil test.

3.19.3. Application rate according to recommendations from a

horticultural soil test.

3.19.4. Product Description: Product must be completely dry, free flowing, dust free and non-segregating. Material must not cake or stick in a conventional rotary or drop type fertilizer spreader.

3.19.5. The fertilizer bag label shall list and certify the

“complete specifications”. No exceptions or deviations to specifications.

3.19.6. Spreader setting is to be approved 5 working days in advance by the QAE. Follow the equipment manufacturer’s application instructions. Do not fertilize if wind speed exceeds 10 miles per hour.

3.20. IRRIGATION SYSTEMS:

3.20.1. Provide permanent irrigation systems at all landscaped areas, including trees, shrubs, ground covers, annuals, perennials, vines, and turfgrass. One exception are areas of native grasses, which require watering for initial establishment only.

3.20.2. Back Flow Preventers: The Contractor shall install backflow preventers in heated mechanical rooms. A commercial grade main control valve shall be installed immediately prior to the backflow preventer. Piping shall be installed to avoid exposure to the elements. Use a sweep type sleeve with soft copper or like material in sleeve to exit building 20 inches below ground and to extend thru below or beyond all hard surfaces. When outdoor installation is required, install in an insulated removable enclosure.

Outdoor installation will require that both sides of the installation be drainable. All installations shall meet or exceed current State of Colorado backflow preventer requirements. Install a 4” thick concrete pad underneath outside backflow preventers.

3.20.3. Piping Systems: PVC piping shall be used for all installations.

Class 200 PVC solvent welded pipes are required. Any pipe larger than 2 inches shall be welded with a heavy bodied glue.

3.20.4. Electric Valves: Irri-Trol 700 series ultra-flow electric valves or RainBird electric valves are currently in use and meet all requirements.

Master valves shall be installed on each irrigation system. Utilize flow sensors that are compatible with central irrigation control system and base controllers.

3.20.5. Irrigation Controllers: Commercial rated controllers in all-weather metal lockable cabinets and master valve capabilities are required for all installations. Pedestal or wall mount are both acceptable. External installations are required. All controllers shall be equipped with remote control technology and a permanent pigtail for remote operation. New controllers shall be sized with 25% spare zone capacity. All wall type controllers shall be mounted at 5 feet from ground level. Electric metal conduit shall be installed from the controller to 20” into the ground with a sweep. Each controller shall have its own dedicated electric breaker switch circuit. Toro Sentinel controllers are currently in use or RainBird compatible controllers with Retro Link Cards. Controller shall be compatible with the base central irrigation system management (Toro- Sentinel Central Software) and be capable of flow sensor monitoring.

Utilize and install Sentinel Retro Link Cards for existing Rain Bird

Controllers on base as applicable for any modifications or renovation projects of existing irrigation systems.

3.20.6. Sprinkler Heads: The RainBird 1800 series pop up spray with plastic nozzles on 1/2” risers are currently in use for small turf grass areas, shrubs, trees, and plant beds. For larger turf areas, I-20 Hunter rotor heads are currently in use. All heads shall be installed flush with the ground and perpendicular to level. Completely flush, clean, and adjust all heads to adequately cover all areas to be irrigated.

3.20.7. Sprinkler Head Riser Assemblies: On all systems with less than 40 psi operating pressure, a straight cut off type riser is required. Funny pipe will not be used. A triple swing joint is required for larger heads with pressure greater than 40 psi.

3.20.8. Drip Irrigation: Utilize minimum 3/4 inch drip tubing from irrigation main line for drip zones valves. Supply tubing shall be a minimum 12” below grade. Micro-tubing with drip emitters shall be designed to bring water from drip laterals to all trees, shrubs, and perennials below groundcover. Utilize non-clogging emitters on 6” stakes.

Provide a minimum of two emitters to shrub material. Provide trees with drip rings. Quantity of emitters may vary based on water requirements for plant materials. Provide drip zone blowouts within a rock sump valve box which shall contain male adapters and PVC end plugs as applicable.

Micro sprays may be allowed for certain applications as approved by the Government. In-line check valves and filters shall be utilized as applicable for this system. Install an exterior flag-type monitoring component on each drip zone that will indicate when drip zone is operational. Flags are not required if flow sensors are installed to monitor operational flows.

3.20.9. Control Wiring: All wire shall be 14-gauge solid copper direct buried. Common wire shall be white in color. Individual control wires shall be the same color. A minimum of three spare third color wires shall be installed in all main line trenches regardless of direction (e.g., if the main line is installed in two directions, a total of six wires will be required from the controller). Wiring shall be installed below and to the side of main lines. Where control wires do not run with a main line, they shall be denoted on the red-line as-built drawings.

3.20.10. Wire Connectors: For in-ground wire connections, Spears DS 400 prefilled watertight connectors or their equivalent are currently in use.

Wire nuts shall not be used.

3.20.11. Valve Boxes: Valve boxes shall be a minimum of 10 inches in diameter. A minimum of 6 inches is acceptable for drip valves only. All valve boxes shall be installed flush with the finished grade. Stack or extend valve boxes as needed. Ametek valve boxes are currently in use.

Valve box lids shall be factory colored to match the surrounding ground plan treatment adjacent to box. Painting of lids is not acceptable.

3.20.12. Drain Valves: Drains shall be installed on low points of main lines to drain sections as needed for maintenance. All drains shall be brass straight valve assemblies. Automatic drains of any type will not be used.

3.20.13. Quick Couplers: Quick couplers shall be installed as a blow-out assemblies. Single lug 1-inch quick couplers shall be used.

3.20.14. Trenching: The Contractor shall not use a pipe puller or vibratory plow to install pipe or control wires. All trenches shall be straight and smooth and of adequate depth for the type of pipe being installed. Main line depth shall be 18 to 20 inches below grade. Lateral pipe depth shall be 8 to 10 inches below grade.

3.20.15. Backfill and Compaction: All backfill material shall be clean soil, free of clods and rocks or any debris that could puncture pipelines.

Trenches shall only be compacted in 6-inch lifts and with a vibratory plate or trench foot jumping jack. Puddling, flooding, or any other means of compaction is not acceptable.

3.20.16. Sleeves: Class 200 PVC sleeves shall be installed under, and 1 foot beyond, all hard surfaces (e.g., sidewalks, driveways, parking lots, etc.). All sleeves shall be straight without bends. Sleeves shall be 6” inside diameter, and installed 10 to 20 inches below grade for main lines and 8 to 10 inches below grade for lateral lines. Physical marking of sleeve locations is required and shall be designated by either stamping a small letter “s” (no larger than 2" square) onto the adjacent hardscape (i.e., walks or curb/gutter) while finishing or saw cutting a notch in the aforementioned hardscape locations after hardening. Sleeve markings shall be on both ends of sleeve location.

3.21. BLUEGRASS SOD AND/OR SEEDING SPECIFICATIONS:

3.21.1. Kentucky bluegrass sod shall be locally grown by a turf farm (sod nursery). The sod shall have a vigorous and healthy root system that has been regularly watered, mowed, fertilized and sprayed for weeds in the sod nursery.

3.21.2. The Kentucky bluegrass sod shall be an equivalent of a ninety-nine percent (99%) improved varietal blend composed of a mix of four or five of the following turf varieties; Midnight, Shamrock, Broadway, Touchdown, Allure, Glade, or approved equal selected for appearance (color, texture, shoot density, and growth habit), adaptation (drought tolerance, response to foot traffic, shade tolerance), cultural requirements (low maintenance, low water consumption, slow growth in height), and disease resistance.

3.21.3. Kentucky bluegrass seed shall be certified Blue Tag seed, certified by the State of Colorado Department of Agriculture to be apparently free from weeds, insect pests and plant diseases. The QAE personnel shall physically remove the blue tags from unopened bags.

3.21.4. The Kentucky bluegrass seed mix shall be an equivalent of a ninety- nine percent (99%) improved varietal blend composed of a mix of four or five of the following turf varieties; Midnight, Shamrock, Broadway, Touchdown, Allure, Glade, or approved equal selected for appearance (color, texture, shoot density, and growth habit), adaptation (drought tolerance, response to foot traffic, shade tolerance), cultural requirements (low maintenance, low water consumption, slow growth in height), and disease resistance. The mix shall have a purity/germination rating of no less than 90/80 with 98/85 preferred. Pure Live Seed (PLS) shall be no less than 83.3%.

3.21.5. Amendments: Amend bluegrass Turf Areas as per a required soils test recommendations. Till in amendments to a minimum depth of six inches (6”).

3.21.6. Establishment: Kentucky bluegrass seeded areas shall have no bare areas larger than six inched by six inches (6”x6”) after germination.

3.22. OTHER GRASS SEED SPECIFICATIONS:Seed Mixture # 1

(Irrigated) shall be used in Zone # 1 high pedestrian and visible areas as a transition from Kentucky bluegrass areas to areas less visible and peripheral. Composition shall be a Tall Fescue Mixture to include three improved varieties of tall fescue and 6 percent Kentucky bluegrass as a binder for the grasses. Seeded at a rate of 350 lbs. per acre.

3.22.2. Seed Mixture # 2 (Semi-Irrigated) shall be used in Zone # 2, less visible areas, medians, adjacent to rights of way, sides of buildings, and adjacent to parking lots. Seeded at a rate of 200 pounds per acre.

Percentage Type Purity/Germination Pure Live Seed 10% Sideoats Grama 98/57 87.17% 10% Western Wheatgrass 98/73 75.19%

25% Tatanka or Sharps 98/93 94.30% Buffalograss 25% Blue Grama 98/82 62.93% 30% Annual Ryegrass 98/90 98.06%

3.22.3. Seed Mixture #3 Fine Fescue Mixture (Semi-Irrigated)

SR 51 Chewings Red Fescue 35% by weight

Shade master Creeping Red Fescue 25% by weight

SR 5200 Creeping Red Fescue 20 % by weight

SR 3200 Blue Fescue 15% by weight

Freedom Kentucky bluegrass 5% by weight

3.22.4. Seed Mixture #4 (Non-Irrigated) shall be used in all non-irrigated native areas. Watering shall be required for establishment only.

Slender wheatgrass 16% by weight

Western wheatgrass 14% by weight

Thickspike wheatgrass 13% by weight

Streambank wheatgrass 12% by weight

Pubescent wheatgrass 10% by weight

Sideoats grama ‘Vaughn’ 10% by weight

Sand bluestem 10% by weight

Prairie sandreed 6% by weight

Sheep fescue ‘Covar’ 3% by weight

Bluegrama ‘Lovington’ 3% by weight

Little Bluestem ‘Pastura’ 3% by weight

3.22.5. Seeded at a rate of 45 pounds per acre.

3.22.6. Other grass seed establishment: Obtain a minimum of 75% germination establishment coverage within 90 days or as applicable per season dates and season. Temporary watering is required to achieve this establishment.

3.22.7. For Additional Information on Native Grass Mixtures and Maintenance, please refer to the Peterson Air Force Base Xeriscape Study & Design Guidelines.

4. 3BStructural Engineering

4.1. GOVERNING BUILDING CODES: Pikes Peak Regional Building

Department has no jurisdiction on PSFB. As such, their local code requirements shall not be used. All code requirements originate with UFC 1-200-01 DoD Building Code.

4.2. SOIL BEARING CAPACITY: All new construction shall be based on a soil bearing capacity as determined by an independent testing laboratory from soil boring information. If soil borings are not possible or not deemed necessary by the Government, then an assumed value of 2,000 psf may be used. The use of this prescriptive value is subject to approval by PSFB.

4.3. SERVICEABILITY REQUIREMENTS: In lieu of any other serviceability limits as determined by the Engineer of Record (EOR), lateral drift limitations for wind loading shall be limited to 1/600 for masonry building exteriors and 1/400 for all other buildings, with a maximum limit of 3/8 inch per story.

Wind loading for serviceability shall be determined based on the criteria specified in ASCE 7 using a 10-Year MRI 3-s gust wind speed of 80 mph at 33 feet above ground in Exposure C.

4.4. CONCRETE:

4.4.1. Compressive Strength: The minimum nominal compressive strength for concrete buildings and structures not exposed to weather shall be 3,000 psi. Concrete exposed to weather and/or in contact with exterior soil conditions shall be 4,500 psi with a water/cement ratio of no more than

0.45. These requirements pertain to buildings and structures. Pavements, sidewalks, curbs, gutters, equipment pads, and other site development features are covered by the CIVIL section of these standards.

4.4.2. Interior Concrete Floor Slabs: All concrete slabs for interior use not exposed to weather shall not have entrained air in the mix design.

4.4.3. Vapor Retarder: Interior slabs on grade shall have a 10 mil vapor retarder installed beneath the slab. Location of vapor retarder shall be in accordance with ACI recommendations.

4.4.4. Capillary barrier: Interior slabs on grade shall have a 6 inch thick capillary barrier installed beneath the slab. Location of capillary barrier shall be in accordance with ACI recommendations.

4.4.5. Exterior Door Stoops: The subgrade for door stoops shall be scarified to 6 inches and recompacted to 95 percent modified Proctor density. A 12-inch layer of CDOT Class 6 base course shall be laid on top of the subgrade and compacted to 100 percent modified Proctor density. The concrete door stoop shall be doweled into the building foundation to prevent uplift due to frost heave.

4.4.6. Anchors:

4.4.6.1. Post-Installed Anchors In Concrete: If post-installed anchors are used for anchoring structural steel to concrete, they shall be drilled and epoxied. Mechanical anchors (e.g. wedge, sleeve, undercut, expansion) shall not be used unless specifically approved by PSFB.

4.4.6.2. The strength reduction factor for concrete that is 90 days or less in age shall be based on Catagory 1 per ACI 318-14, section 17.3.3. Concrete older than 90 days of age shall be based on Catagory 3.

4.4.6.3. Wet stabbing of anchors is prohibited.

4.4.7. Reinforcement Support: Rebar shall be supported by metal or plastic chairs. Dobies are not allowed.

4.5. MASONRY: Special inspection shall be assumed in determining the compressive strength of masonry.

4.6. METAL: Light gage metal framing shall be designated using the Steel Stud Manufacturer’s Association (SSMA) system. All steel studs shall be structural rated regardless of load condition.

4.7. WOOD: Plywood roof sheathing shall be tongue and groove panels.

The use of edge clips is not allowed.

4.8. SEALED DOCUMENTS: Documents produced by a Contractor which require structural engineering shall be stamped and signed by a professional engineer or registered architect.

4.9. EXTERIOR SCREEN WALLS AND SIGNS: Exterior solid free standing screen walls and exterior solid free standing single-sided signs shall be designed using the provisions of ASCE 7. If the top elevation of the wall or sign is less than or equal to 10 feet above adjacent grade, then the Designer Of Record (DOR) has the option to only use CASE A with a Cf factor equal to

1.40 and the resultant load applied at the mid-height of the wall or sign surface.

5. 4BArchitectural

5.1. DESIGN EXCELLENCE: Excellence in architectural design for both the interior and exterior of all facilities at Peterson Space Force Base is a primary goal for all design projects. Reaching this goal requires a commitment to architectural quality and a design that is sensitive to both the surrounding community and to the specific functional needs of the customer. Careful attention shall be given to the customers’ functional requirements, an aesthetic solution compatible with the local environment and this document, interior and exterior details, siting, energy efficiency, and economy of design including life cycle cost. New facilities shall be creative yet harmonious with those existing facilities that are considered to be architecturally appropriate.

It should be recognized that quality design does not imply added expense, and can often provide savings in operating, maintenance, and construction costs. Materials for both interior and exterior of facilities shall be selected and used with proper consideration for aesthetics, constructability, durability, sustainability, and maintainability. Design decisions and material selections must have the supporting data necessary to justify the design adopted.

5.2. INSTALLATION FACILITIES STANDARDS: All designs for new buildings, additions, and/or alteration shall comply with the PSFB Installation Facilities Standards (IFS). < Peterson_AFB_IFS_Link >

5.3. GOVERNING BUILDING CODES: Pikes Peak Regional Building

Department has no jurisdiction on PSFB. As such, their local code requirements shall not be used. All code requirements originate with UFC 1- 200-01 DoD Building Code.

5.4. SITE DEVELOPMENT: The Contractor shall utilize the PSFB IFS in generating all options during the concept design phase of a project. The context of any given area of the base is addressed in the IFS and shall be strongly adhered to. The Contractor shall maintain all site and facility dimensions specified in the IFS. This includes such things as airfield limits, clear zones, glide slopes, and height limits. The development of the site for any project shall take into account impacts to adjacent facilities and ground sites. All walks, stairs, ramps, and railings shall comply with those requirements laid out in the PSFB IFS and this document. The appropriate parking lot setbacks and distances from existing facilities will be closely scrutinized both from those requirements set out by the IFS but also looked at from an Antiterrorism/Force Protection (AT/FP) perspective.

5.5. BUILDING DESIGN: New design projects shall be a direct result of the most efficient layout of space in relationship to the proposed site. Space https://www.wbdg.org/FFC/AF/AFIFS/Peterson_AFB_IFS.pdf requirements for new projects shall be developed from UFC 4-610-01 “ADMINISTRATIVE FACILITIES” and in conjunction with any other AF or DoD design guides, instructions, handbooks applicable to the specific function and/or type of facility (e.g. VQ’s, Clubs, Chapels, CDC’s, etc.) The relationships of those spaces shall be developed from information obtained from the user. Required space for mechanical, electrical, and communication rooms shall be included in this space. Renovation and repair projects need to be examined with the same requirements as a new building, but the design will be constrained to the existing space.

Coordination of all parties involved in the design process is essential to ensure user’s needs are met without compromising design principals of this document. All applicable codes and smart design practices shall be incorporated into the design regardless of budget constraints.

5.6. BUILDING EXTERIOR:

5.6.1. Signs: Signs for accessible parking shall meet all Architectural Barriers Act (ABA) requirements and shall comply with the Manual on Uniform Traffic Control Devices (MUTCD). All other exterior signs, such as facility and directional signs, shall meet requirements and dimensions shown in the IFS and shall comply with UFC 3-120-01 Design Sign Standards. All sign posts and sign backs shall be painted Peterson Brown. Sign posts shall be solid, not pre-punched.

5.6.2. Exterior Doors:

5.6.2.1. All exterior personnel doors shall be 3 feet wide by 7 feet high by 1- 3/4 inch thick in size, unless noted otherwise or required to accommodate maintenance or replacement of equipment.

5.6.2.2. All exterior doors shall open onto a concrete landing or stoop.

5.6.2.3. Exterior double doors shall have a removable center mullion frame assembly. The removable mullion shall have a locking device which is keyed to the door lock.

5.6.2.4. Exterior steel doors shall be SDI A250.8, Level 3 extra heavy duty flush steel type with 16 gauge pressed steel frames. Doors shall be weather tight and insulated to meet a minimum R-value of 10 or as required by ASHRAE 90.1, whichever is greater. Exterior door frames shall have a thermal break to prevent thermal transfer. Doors shall be complete door and frame assemblies with weather-stripping, door bottoms, and threshold. All exterior exit door locations shall have panic hardware. All exterior steel door and frame assemblies shall arrive to the job site with a factory applied A25 galvannealed finish and a factory primer finish. Each door shall receive at least three final coats of paint. All exterior steel doors which require air louvers shall have the "Y" sight-proof type louver blades and an interior mounted bird screen wire mesh protection.

5.6.2.5. All exterior aluminum doors shall meet or exceed heavy duty (Level II) requirements. Doors shall be full glazed with narrow or medium stiles and rails. Medium stiles and rails are acceptable for most facilities, except at high-visibility entrances. Aluminum doors at HQ facilities shall be narrow stile and rails. Air leakage of a single leaf weather-stripped door shall not exceed 0.5 cubic feet per minute of air per square foot of door. An anodized coating, Architectural Class II, 0.7 mil or thicker finish shall be provided on all aluminum doors, windows, and door frames.

5.6.2.6. Overhead Panel Doors/Coiling Doors: Exterior overhead panel doors and exterior coiling doors shall be provided with insulation values in accordance with ASHRAE 90.1 requirements. These doors shall be provided with a factory powder coated finish. Field painting of these doors is not allowed.

5.6.3. Entrance Vestibules: Entry vestibules shall be provided at all main entrances and at frequently used secondary entrances. All vestibules shall meet ABA requirements. All doors at main entry vestibules shall be fully glazed anodized aluminum type.

5.6.4. The main entrance to facilities required to meet accessibility requirements shall have a power operated pedestrian entry door complying with ABA. Large renovations of existing facilities shall be retrofitted to comply with this requirement. Door operators shall be hard wired and shall not use self-charging systems, battery power, or RF controllers.

5.6.5. Windows and Window Glazing: Appearance, function, heat gain and loss, maintenance, operation safety, structural requirements, and suitability for the climate of PSFB shall be considered when selecting windows.

Thermally broken aluminum frames shall be used to maximize window thermal resistance values. Glazing sizes and properties shall be based on wind load requirements for PSFB, security requirements, and AT/FP for the facility. All new exterior glazing must comply with UFC 4-010-01, DoD Minimum Antiterrorism Standards for Buildings. Low “E” glass shall be used at all locations. Tinted glass is required, however applied film is not allowed for purposes of tinting. For renovations and additions, the color of the glazing and frames shall match that of the existing facility. Applied films may be used only on Existing facilities and only for purposes of achieving security/visual obstruction requirements outlined in UFCs, where permissible by SSO.

5.6.5.1. New framed and glazed systems shall be selected and designed as water-managed or pressure equalized systems. Face-sealed systems are not acceptable for use on Peterson SFB IAW Best Practices outlined in UFC 3-101-01. Front-set glazing systems (asymmetrical with glass offset toward exterior) are preferred over center-glazed systems at PSFB. Framing/glazing systems shall be designed and tested to accommodate a continuous primary perimeter sealant bead protected from the elements, including UV (not exposed to the exterior). This may be achieved by three-seal perimeter condition on all sides, inclusive of an interior aesthetic sealant bead, a primary sealant bead from framing to water-resistive/air barrier, and a UV-protective/aesthetic exterior sealant bead to flashing or cladding.

Alternatively, Contractors may propose an alternative method to achieve a UV and weather protected perimeter seal condition and to effectively eliminate face-sealed conditions discouraged by UFC. For existing facility window replacements, water-resistive/air barriers shall be repaired, extended, or replaced as required for new framing tie-in at perimeter sealant. All sheet metal flashings at replacement window locations shall be replaced as required to coordinate with new framing system and proper drainage to the exterior cladding.

5.6.5.2. For projects involving replacement or new glazed windows, storefront, or curtainwall aggregating to more than 200 SF of glazed area, or where required by other applicable regulation, Contractor shall include field testing performed by a qualified testing agency regularly engaged in testing of architectural products, not affiliated with the window, storefront, curtainwall, or glazing installer, and experienced with the referenced test methods below. At a minimum, AAMA 501.2 (Water Spray), ASTM E783 (Air Leakage), and ASTM E1105 (Water Penetration) testing shall be performed.

Minimum test location/specimen quantities are established below. Each failed test will result in a subsequent test of the same testing procedure on both the failed specimen and one additional comparable specimen location at no additional cost to the Government. When feasible, each testing specimen shall include joints between the glazed assemblies and the adjacent construction (Head, Jamb, Sill sealants connecting glazed framing system to the Air and Water Resistive Barrier) for all three testing procedures.

5.6.5.2.1. Field Water Spray Tests: Where field water spray testing of the glazing system is required by this design guide, by UFC, by specifications, or by other applicable regulation, Contractor shall provide AAMA 501.2 testing before interior finishes and secondary/aesthetic beads of sealant have been installed. Perform a minimum quantity of initial tests equivalent to 10% of the aggregated new glazed system area, with locations and specimens selected at random by the Government. Test area/specimen must not show evidence of water penetration. Testing results shall be provided to the Government.

5.6.5.2.2. Air Infiltration Tests : Where air infiltration testing of the glazing system is required by this design guide, by UFC, by specifications, or by other applicable regulation, Contractor shall provide ASTM E783 testing at a static air pressure differential of 6.24 lbf/sq. ft. with maximum 1.5 times the allowable leakage rate specified for laboratory testing of product within performance specifications, but not more than 0.06 cfm/sq. ft. for fixed lites.

Perform a minimum quantity of initial tests equivalent to 5% of the aggregated new glazed system area, with locations and specimens selected at random by the Government. Testing results shall be provided to the Government.

5.6.5.2.3. Water Penetration Tests : Where water penetration testing of the glazing system is required by this design guide, by UFC, by specifications, or by other applicable regulation, Contractor shall provide ASTM E1105 testing, performed only on materials and components explicitly required for factory-tested performance of air and weather tightness, prior to installation of finish materials, rain screen cladding, and secondary/aesthetic beads of sealant.

This will ensure the specimen can be easily observed for water penetration during the test. For existing facilities and instances where material sequencing cannot accommodate this testing condition, Contractor shall coordinate with the Government on the possibility of alternative or modified testing conditions and the feasibility of conducting a meaningful static air pressure difference water penetration test. Test shall meet a minimum uniform static-air-pressure differential of 0.67 times the static-air-pressure differential specified for laboratory testing in performance specifications, but not less than 6.24 lbf/sq. ft. Perform a minimum quantity of initial tests equivalent to 10% of the aggregated new glazed system, with locations and specimens selected at random by the Government. Test area/specimen must not show evidence of water penetration. Testing results shall be provided to the Government.

5.6.6. Brick: Every effort shall be made to match existing brick when constructing additions or alterations. New brick shall match in size, texture, color, and color variation. This may require a blend of different brick to match existing as close as possible. For renovations, contractor shall salvage any brick being removed and use the salvaged brick for any new brick locations. For new facilities, base standard brick is: HERITAGE 441, by

General Shale. Any time brick is to be used as an exterior material, guidelines from the Rocky Mountain Masonry Institute shall be used for installation. Required expansion joints shall be clearly identified on elevation drawings so the Contractor and inspectors can clearly identify joint locations.

Brick dimension modules shall be used when laying out new floor plans in order to minimize the number of brick cuts. A 1 inch minimum air space shall be used at all brick veneer conditions. A 2 inch air space is optimum.

All air spaces shall be kept free of debris and mortar. Wall sheathing shall be kept dry. Exterior face brick shall be installed at structural stem wall ledgers at 4 to 6 inches above finish grade. At no time shall brick units be placed below grade. All brick surfaces shall be pressure washed and cleaned prior to project closeout. Weep holes and continuous flashing shall be installed according to guidelines set by the Rocky Mountain Masonry Institute. Cells of brick shall not be exposed. Contractor shall use solid brick units at applicable locations. When infilling an existing brick opening, Contractor shall tooth-in full bricks into existing courses for a uniform finished appearance.

5.6.7. Exterior Wall Louvers: Architectural louvers must be of a storm-proof type. In areas subject to high winds, use two louvers or a louver with adjustable damper. Louvers greater than 4 feet in width shall require a mullion. Avoid installing louvers at locations where snow could drift against them. All exterior louvers shall be provided with a factory applied powder coat or anodized finish.

5.6.8. Exterior Insulation/Thermal Envelope: Insulation materials shall be used to create the optimum degree of energy efficiency within the specified design criteria. Placement of insulation shall be clearly thought through and identified on the drawings in order to provide a continuous envelope. Such things as structural beams, columns, and window mullions shall be insulated to prevent excessive condensation and frost. All uses of insulation shall include a careful analysis of the control of moisture vapor and shall be documented in the Design Analysis. Metal roofing is particularly likely to reach temperatures that can condense uncontrolled moisture vapor and lead to serious damage to the facility. Vapor retarder membranes and barriers shall be located on the drawings and identified in the specifications. Thermal resistance and/or conductance values for all building elements shall comply with ASHRAE 90.1.