University of Colorado Colorado Springs North Campus Sign

University of Colorado

Colorado Springs

North Campus Sign

Landscape Specifications

Construction Documents

October 31, 2011

H+L Project #282.008

UNIVERSITY OF COLORADO COLORADO SPRINGS

NORTH CAMPUS SIGN

TABLE OF CONTENTS

Division Section Title

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 8400 DESIGN/ BUILD PLANTING IRRIGATION SPRINKLING SYSTEM

32 9200 LAWNS AND GRASSES

32 9300 EXTERIOR PLANTS

Refer to the drawings for specification information related to other divisions

PROJECT NO. 282.008

TABLE OF CONTENTS Page 1

UNIVERSITY OF COLORADO at COLORADO SPRINGS

NORTH CAMPUS SIGN

PROJECT NO. 282.008

SECTION 32 8400 – DESIGN/ BUILD PLANTING IRRIGATION SPRINKLING SYSTEM

PART 1 - GENERAL

1.1 SCOPE

Furnish all labor, materials, supplies, equipment, tools and transportation, and perform all operations in connection with and reasonably incidental to the installation of a new irrigation system, and warranty as specified herein. Items of work specifically included are:

A. Procurement of all applicable licenses, permits, and fees including payment of all development, plant investment, or any other fees and permits associated with the purchase and installation of the tap.

B. Design and documentation of new irrigation system sufficient to supply new plantings indicated in the contract documents. A new Rain Bird clock and controller will be required. All tree, shrub and perennial plants shall be drip-irrigated and grass planting shall be spray-irrigated.

C. Coordination of Utility Locates (“Call Before You Dig”).

D. Verification of existing static pressure.

E. Maintenance period.

F. Sleeving for irrigation pipe and wire.

G. Cutting and capping of water supply system lines disturbed by construction and reconnection of these areas when complete.

1.2 SUBMITTALS

Deliver four (4) copies of all required submittals to the within 15 days from the date of Notice to

Proceed.

A. Materials List: Include pipe, fittings, mainline components, water emission components, control system components. Quantities of materials need not be included.

B. Manufacturers' Data: Submit manufacturers' catalog cuts, specifications, and operating instructions for equipment shown on the materials list.

C. Shop Drawings: Submit shop drawings which include detailed irrigation design. Show products required for proper installation, their locations, and critical dimensions. The drawing scale shall be 1 inch equals 20 or 30 feet

D. The drawings shall comply with all industry drawing and design standard, including the Irrigation

Association standards for certified commercial designers.

E. Prior to construction, the Owner’s Representative shall review the irrigation design drawings for completeness, accuracy, and conformance to industry design standards.

F. Project Record Drawings: After completion of installation, submit project record (as-built) drawings to Owner prior to commencement of maintenance period.

DESIGN BUILD PLANTING IRRIGATION SPRINKLING SYSTEM

OCTOBER 31, 2011 – 100% Construction Documents

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ALPINE VILLAGE LANDSCAPE IMPROVEMENTS

PROJECT NO. 282.005

1.3 RULES AND REGULATIONS

A. Work and materials shall be in accordance with the latest edition of the National Electric Code, the Uniform Plumbing Code as published by the Western Plumbing Officials Association, and applicable laws and regulations of the governing authorities.

B. When the contract documents call for materials or construction of a better quality or larger size than required by the above-mentioned rules and regulations, provide the quality and size required by the contract documents.

C. If quantities are provided in these specifications these quantities are provided for information only.

It is the Contractor's responsibility to determine the actual quantities of all material, equipment, and supplies required by the project and to complete an independent estimate of quantities and wastage.

1.4 TESTING

A. Notify the Owner’s Representative three days in advance of testing.

1. Pipelines jointed with rubber gaskets or threaded connections may be subjected to a pressure test at any time after partial completion of backfill. Pipelines jointed with solventwelded PVC joints shall be allowed to cure at least 24 hours before testing.

B. Subsections of mainline pipe may be tested independently, subject to the review of the Owner’s

Representative.

C. Furnish clean, clear water, pumps, labor, fittings, and equipment necessary to conduct tests or retests.

D. Hydrostatic Pressure Test:

1. Subject mainline pipe to a hydrostatic pressure of 150 PSI for two hours. Test with mainline components installed.

2. Backfill to prevent pipe from moving under pressure. Expose couplings and fittings until a visual inspection is completed by the Owner’s Representative.

3. Leakage will be detected by visual inspection. Replace defective pipe, fitting, joint, valve, or appurtenance. Repeat the test until the pipe passes test.

4. Cement or caulking to seal leaks is prohibited.

E. Operational Test:

1. Activate each remote control valve in sequence from controller. The Owner’s Representative will visually observe operation, water application patterns, and leakage.

2. Replace defective remote control valve, solenoid, wiring, or appurtenance to correct operational deficiencies.

3. Replace, adjust, or move water emission devices to correct operational or coverage deficiencies.

4. Replace defective pipe, fitting, joint, valve, sprinkler, or appurtenance to correct leakage problems. Cement or caulking to seal leaks is prohibited.

5. Repeat test(s) until each lateral passes all tests.

IRRIGATION SPRINKLING SYSTEM

OCTOBER 19, 2009 – Construction Documents

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PROJECT NO. 282.005

1.5 CONSTRUCTION REVIEW

The purpose of on-site reviews by the Owner’s Representative is to periodically observe the work in progress and the Contractor's interpretation of the project requirements and to address questions regarding to the installation.

A. Scheduled reviews such as those for irrigation system layout or testing should be scheduled with the Owner’s Representative as required by these specifications.

B. Impromptu reviews may occur at any time during the project.

C. Final review will occur at the completion of the irrigation system installation and Record (As-Built)

Drawing submittal.

1.6 WARRANTY AND REPLACEMENT

The purpose of this warranty is to insure that the Owner receives irrigation materials of prime quality, installed and maintained in a thorough and careful manner.

A. For a period of one year from commencement of the formal maintenance period, warranty irrigation materials, equipment, and workmanship against defects. Fill and repair depressions.

Restore landscape or structural features damaged by the settlement of irrigation trenches or excavations. Repair damage to the premises caused by a defective item. Make repairs within seven days of notification from the Owner’s Representative.

B. Construction documents govern replacements identically as with new work. Make replacements at no additional cost to the contract price.

C. Warranty applies to originally installed materials and equipment and replacements made during the warranty period.

PART 2 - MATERIALS

2.1 QUALITY

Use materials which are new and without flaws or defects of any type, and which are the best of their class and kind.

2.2 SUBSTITUTIONS

A. Equipment and design requirements referenced in this specification are minimum requirements, and may be increased at the option of the Contractor with no additional cost to Owner.

2.4 SLEEVING

A. Install separate sleeve beneath paved areas to route each run of irrigation pipe or wiring bundle.

B. Sleeving material beneath pedestrian pavements shall be PVC Class 200 pipe with solvent welded joints.



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PROJECT NO. 282.005

C. Sleeving beneath drives and streets shall be PVC Class 200 pipe with solvent welded joints.

D. Sleeving diameter: equal to twice that of the pipe or wiring bundle.

2.5 PIPE AND FITTINGS

A. Mainline Pipe and Fittings:

1. Use rigid, unplasticized polyvinyl chloride (PVC) 1120, 1220 National Sanitation Foundation

(NSF) approved pipe, extruded from material meeting the requirements of Cell Classification

12454-A or 12454-B, ASTM Standard D1784, with an integral belled end.

2. For pipe sizes less than 3-inches: Use Class 200, SDR-21, rated at 200 PSI, conforming to the dimensions and tolerances established by ASTM Standard D2241. Use PVC pipe rated at higher pressures than Class 200 in the case of small nominal diameters which are not manufactured in Class 200.

3. Use rubber-gasketed pipe for mainline pipe with a nominal diameter greater than or equal to

3-inches and rubber-gasketed ductile iron fittings with lubricant approved by the pipe manufacturer. Use gasketed pipe equipped with Reiber Gasket System. Pipe fittings may use standard gaskets. Class 200 PVC service tees may be used for non-directional mainline fittings only.

4. Use solvent weld pipe for mainline pipe with a nominal diameter less than 3-inches or where a pipe connection occurs in a sleeve. Use Schedule 40, Type 1, PVC solvent weld fittings conforming to ASTM Standards D2466 and D1784. Use primer approved by the pipe manufacturer. Solvent cement to conform to ASTM Standard D2564.

B. Lateral Pipe and Fittings:

1. Use rigid, unplasticized polyvinyl chloride (PVC) 1120, 1220 National Sanitation Foundation

(NSF) approved pipe, extruded from material meeting the requirements of Cell Classification

12454-A or 12454-B, ASTM Standard D1784, with an integral belled end suitable for solvent welding.

2. Use Schedule 40 conforming to the dimensions and tolerances established by ASTM

Standard D1785; UV radiation resistant.

Use UV radiation resistant Schedule 40, Type 1, PVC solvent weld fittings conforming to

ASTM Standards D2466 and D1784 for PVC pipe.

3. Use primer approved by the pipe manufacturer. Solvent cement to conform to ASTM

Standard D2564, of a type approved by the pipe manufacturer.

4. For drip irrigation laterals downstream of zone control valves, use UV radiation resistant polyethylene pipe manufactured from Prime Union Carbide G-resin 7510 Natural 7 manufactured by Union Carbide or a Union Carbide Licensee with a minimum of 2% carbon black, and minimum nominal pipe ID dimension of 0.810" for 3/4 inch pipe.

Use PVC/compression line fittings compatible with the drip lateral pipe. Use tubing stakes to hold above-ground pipe in place.

C. Specialized Pipe and Fittings:



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PROJECT NO. 282.005

1. Copper pipe: Use Type "K" rigid conforming to ASTM Standard B88.

Use wrought copper or cast bronze fittings, soldered or threaded per the installation details.

Use a 95% tin and 5% antimony solder.

2. Use a dielectric union wherever a copper-based metal (copper, brass, bronze) is joined to an iron-based metal (iron, galvanized steel, stainless steel).

3. Assemblies calling for pre-fabricated double swing joints shall utilize LASCO Unitized swing joints or approved equal. Swing joints shall be rated at 315 PSI, and use O-ring and street elbow construction.

4. Low Density Polyethylene Hose: a. Use pipe specifically intended for use as a flexible swing joint. b. Inside diameter: 0.490+0.010 inch. c. Wall thickness: 0.100+0.010 inch. d. Color: Black. e. Use spiral barb fittings supplied by the same manufacturer as the hose.

5. Assemblies calling for threaded pipe connections shall utilize PVC Schedule 80 nipples and

PVC Schedule 80 threaded fittings.

6. Joint sealant:

7. Use only Teflon-type tape pipe joint sealant on plastic threads. Use nonhardening, nontoxic pipe joint sealant formulated for use on water-carrying pipes on metal threaded connections.

D. Marking Tape: (For Non-Potable Water Sources Only)

1. Mainline Pipe - Christy underground I.D. tape TA-DT-3-P-NPW.

E. Thrust Blocks:

1. Use thrust blocks for fittings on pipe greater than or equal to 3-inch diameter or any diameter rubber gasketed pipe.

2. Use 3,000 PSI concrete.

3. Use No. 4 Rebar wrapped or painted with asphalt tar based mastic coating.

2.6 MAINLINE COMPONENTS

A. Main System Shutoff Valve: As per local practice and in compliance with local code.

B. Backflow Preventer: Febco 825YA Reduced Pressure Assembly or approved equal.

C. Pressure Reducing Master Valve (PRV): Rainbird PEB

D. Water Meter: Reference Civil documents – landscape contractor will pick up immediately downstream of the water meter

E. Winterization Assembly: As per local practice and in compliance with local code.



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PROJECT NO. 282.005

F. Isolation Gate Valve Assembly: Matco 514 full port gate valves up to 2-1/2 inches. Use Matco

10RT for 3-inch and larger valves. Install a separate valve box over a 3-inch depth of 3/4-inch gravel for each assembly.

G. Quick Coupling Valve Assembly: Rain Bird Model 5LRC. Where 2 piece valves are required use

Rain Bird 44RC or equal. Install with a prefabricated double swing joint arrangement. Use 24inch length of rebar to secure valve from turning during operation. Install a separate valve box over a 3-inch depth of 3/4-inch gravel for each assembly.

2.7 SPRINKLER IRRIGATION COMPONENTS

A. Remote Control Valve (RCV) Assembly for Sprinkler Laterals:

Use Rain Bird PEB valves for potable water installations, and Rain Bird PES-B valves for nonpotable installations. Where brass valves are desirable, use Rain Bird GB for potable installations and Rain Bird EFB for non-potable. Use wire connectors and waterproofing sealant to join control wires to solenoid valves. Install a separate valve box over a 3-inch depth of 3/4inch gravel for each assembly.

B. Sprinkler Assembly:

1. Turf areas 30 feet maximum dimension and smaller use pop-up spray type sprinklers from the following manufacturers: Rain Bird 1800-PRS-SAM series.

2. Turf areas larger than 30 feet maximum dimension use pop-up rotary type sprinklers from the following manufacturers: Rain Bird 5000, 6500, 7000, 8000 series.

2.8 DRIP IRRIGATION COMPONENTS

A. Remote Control Valve (RCV) Assembly for Drip Laterals: Rain Bird XCZ-100 COM. Use wire connectors and waterproofing sealant to join control wires to solenoid valves. Install a separate valve box over a 3-inch depth of 3/4-inch gravel for each assembly.

B. Drip Emitter Assembly:

1. Barb-mounted, vortex and/or pressure compensating emitter device. The device shall be

Rain Bird XB-10.

2. Install emitter types and quantities on the following schedule: a. Ground cover plant: 1 single outlet emitter each or 1 single outlet emitter per square foot of planting area, whichever is less. b. Shrub: 2 single outlet emitters each. c. Tree: 4 single outlet emitters each or 1 multi-outlet emitter each (with 4 outlets open).

3. Use 1/4-inch diameter flexible plastic tubing to direct water from emitter outlet to emission point. Length of emitter outlet tubing shall not exceed five feet. Secure emitter outlet tubing with tubing stakes.

4. Install an access sleeve for each multiple-outlet emitter located in a drought tolerant or native turf area.

C. Flush Cap Assembly: Rain Bird Model 700-CF-21. Locate at the end of each drip irrigation



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PROJECT NO. 282.005 lateral pipe. Install a separate valve box over a 3-inch depth of 3/4-inch gravel for each assembly.

2.8 CONTROL SYSTEM COMPONENTS

A. Irrigation Controller Unit:

1) To be presented in the shop drawings and installation details.

2) Primary surge protection arrestors:

Model LPP-K, manufactured by Rain Bird Sprinkler Manufacturing Corporation,

Glendora, California.

3) Valve output surge protection arrestors:

Model LPV-K, manufactured by Rain Bird Sprinkler Manufacturing Corporation,

Glendora, California.

4) Lightning protection: 4” x 96” x 0.0625” copper-clad grounding plate.

5) Wire markers: Pre-numbered or labeled with indelible non-fading ink, made of permanent, non-fading material.

B. Instrumentation:

1) As presented in the drawings and installation details.

2) Rain Sensor: Mini-Clik II as manufactured by Hunter, Inc.

C. Control Wire:

1) Use American Wire Gauge (AWG) No. 14 solid copper, Type UF or PE cable, UL approved for direct underground burial from the controller unit to each remote control valve. Use AWG No.

12 wire for common wire.

2) Color: Use white for common ground wire. Use easily distinguished colors for other control wires. Spare control wires shall be of a color different from that of the active control wire. Wire color shall be continuous over its entire length.

3) Splices: Use wire connector with waterproof sealant. Wire connector to be of plastic construction consisting of two (2) pieces, one piece which snap locks into the other. A copper crimp sleeve to be provided with connector. Utilize DBR6-300 splices.

4) Encase wiring not located near PVC irrigation pipe in PVC Schedule 40 electrical conduit.

Warning tape: Inert plastic film highly resistant to alkalis, acids, or other destructive chemical components likely to be encountered in soils. Three inches wide, colored yellow, and imprinted with "CAUTION: BURIED ELECTRIC LINE BELOW."

D. Existing Control Wire:



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PROJECT NO. 282.005

1) It is assumed that existing 24 VAC control wire between existing controller and solenoid valves is in workable condition. Any concerns are to be brought to the attention of the Owner prior to installation of the replacement controller.

2.9 OTHER COMPONENTS

A. Tools and Spare Parts: Provide operating keys, servicing tools, test equipment, other items, and spare parts required to service equipment, valves and sprinkler equipment. Provide sprinklers for extra stock on the following schedule: one rotor sprinkler for every 20 rotors on the project; one spray sprinkler for every 10 sprays on the project.

PART 3 - EXECUTION

3.1 INSPECTIONS AND REVIEWS

A. Site Inspections:

1. Verify site conditions and note irregularities affecting work of this section. Report irregularities to the prior to beginning work.

2. Beginning work of this section implies acceptance of existing conditions.

3. Contractor will be held responsible for coordination between landscape and irrigation system installation.

4. Landscape material locations shown on the Landscape Plan shall take precedence over the irrigation system equipment locations. If irrigation equipment is installed in conflict with the landscape material locations shown on the Landscape Plan, the Contractor will be required to relocate the irrigation equipment, as necessary, at Contractor’s expense.

B. Utility Locates ("Call Before You Dig"):

1. Arrange for and coordinate with local authorities the location of all underground utilities.

2. Repair any underground utilities damaged during construction. Make repairs at no additional cost to the Owner.

C. Irrigation System Layout Review: Irrigation system layout review will occur after the staking has been completed. Notify the Architect two days in advance of review. Modifications will be identified by the Architect at this review.

3.2 LAYOUT OF WORK

A. Stake out the irrigation system. Items staked include: sprinklers, pipe, control valves, manual drains, controller, and isolation valves.

B. Install all mainline pipe and mainline components inside of project property lines.

3.3 EXCAVATION, TRENCHING, AND BACKFILLING

A. Excavate to permit the pipes to be laid at the intended elevations and to permit work space for



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PROJECT NO. 282.005 installing connections and fittings.

B. Minimum cover (distance from top of pipe or control wire to finish grade):

1. 24-inch over mainline pipe and over electrical conduit.

2. 26-inch over control wire.

3. 18-inch over lateral pipe.

4. 8-inch over drip lateral pipe in turf or paved areas downstream of drip system zone control valves.

5. 3-inch minimum mulch cover over drip lateral pipe in planting beds downstream of drip system zone control valves.

6. PVC UV radiation resistant lateral pipe shall be installed directly on the soil surface.

C. Backfill only after lines have been reviewed and tested.

D. Excavated material is generally satisfactory for backfill. Backfill shall be free from rubbish, vegetable matter, frozen materials, and stones larger than 2-inches in maximum dimension.

Remove material not suitable for backfill. Backfill placed next to pipe shall be free of sharp objects which may damage the pipe. Stones larger than 1-inch maximum dimension are not permitted in first (deepest) 6-inches of backfill.

E. Backfill unsleeved pipe in either of the following manners:

1. Backfill and puddle the lower half of the trench. Allow to dry 24 hours. Backfill the remainder of the trench in 6-inch layers. Compact to density of surrounding soil.

2. Backfill the trench by depositing the backfill material equally on both sides of the pipe in 6inch layers and compacting to the density of surrounding soil.

F. Enclose pipe and wiring beneath roadways, walks, curbs, etc. in sleeves. Minimum compaction of backfill for sleeves shall be 95% Standard Proctor Density, ASTM D698-78. Conduct one compaction test for each sleeved crossing less than 50 feet long. Conduct two compaction tests for each sleeved crossing greater than 50 feet long. Costs for such testing and any necessary retesting shall be borne by the Contractor. Use of water for compaction around sleeves,

"puddling", will not be permitted.

G. Dress backfilled areas to original grade. Incorporate excess backfill into existing site grades.

H. Where utilities conflict with irrigation trenching and pipe work, contact the for trench depth adjustments.

3.4 SLEEVING AND BORING

A. Install sleeving at a depth which permits the encased pipe or wiring to remain at the specified burial depth.

B. Extend sleeve ends six inches beyond the edge of the paved surface. Cover pipe ends and mark with stakes. Mark concrete with a chiseled "x" at sleeve end locations.

C. Bore for sleeves under obstructions which cannot be removed. Employ equipment and methods designed for horizontal boring.

3.5 ASSEMBLING PIPE AND FITTINGS



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PROJECT NO. 282.005

A. General:

1. Keep pipe free from dirt and pipe scale. Cut pipe ends square and debur. Clean pipe ends.

2. Keep ends of assembled pipe capped. Remove caps only when necessary to continue assembly.

B. Mainline Pipe and Fittings:

1. Size mainline pipe with a maximum flow velocity of 5 FPS.

2. Use only strap-type friction wrenches for threaded plastic pipe.

3. PVC Rubber-Gasketed Pipe: a. Use pipe lubricant. Join pipe in the manner recommended by manufacturer and in accordance with accepted industry practices.

4. PVC Solvent Weld Pipe: a. Use primer and solvent cement. Join pipe in a manner recommended by the manufacturer and in accordance with accepted industry practices. b. Cure for 30 minutes before handling and 24 hours before allowing water in pipe. c. Snake pipe from side to side within the trench.

5. Fittings: The use of cross type fittings is not permitted.

C. Lateral Pipe and Fittings:

1. Size lateral pipe with a maximum flow velocity of 5 FPS, except for short sections of pipe or swing joints at the discharge of the remote control valve which can be sized for 7 FPS.

2. Use only strap-type friction wrenches for threaded plastic pipe.

3. PVC Solvent Weld Pipe: a. Use primer and solvent cement. Join pipe in the manner recommended by the manufacturer and in accordance with accepted industry practices. b. Cure for 30 minutes before handling and 24 hours before allowing water in the pipe. c. Snake pipe from side to side within the trench.

4. UV Radiation Resistant Polyethylene Pipe: a. Join pipe in the manner recommended by manufacturer and in accordance with accepted industry practices. b. Snake pipe from side to side within the trench, on the soil surface, and hold in place with tubing stakes spaced every five feet.

5. Fittings: The use of cross type fittings is not permitted.

D. Specialized Pipe and Fittings:

1. Copper Pipe: a. Buff surfaces to be joined to a bright finish. Coat with solder flux. b. Solder so that a continuous bead shows around the joint circumference.

2. Ductile Iron Pipe:



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PROJECT NO. 282.005 a. Use push-on joints whenever possible. Use pipe lubricant. Join pipe in the manner recommended by manufacturer and in accordance with accepted industry practices.

3. Insert a dielectric union wherever a copper-based metal (copper, brass, bronze) and an ironbased metal (iron, galvanized steel, stainless steel) are joined.

4. Pre-fabricated double swing joints: Install per manufacturer's recommendations.

5. Low Density Polyethylene Hose: Install per manufacturer's recommendations.

6. PVC Threaded Connections: a. Use only factory-formed threads. Field-cut threads are not permitted. b. Use only Teflon-type tape. c. When connection is plastic-to-metal, the plastic component shall have male threads and the metal component shall have female threads.

7. Make metal-to-metal, threaded connections with Teflon-type tape or pipe joint compound applied to the male threads only.

E. Thrust Blocks:

1. Use cast-in-place concrete bearing against undisturbed soil.

2. Size, orientation and placement shall be as shown on the installation details.

3. Install rebar with mastic coating as shown on the installation details.

3.6 INSTALLATION OF MAINLINE COMPONENTS

A. Isolation Gate Valve Assembly:

1. For operation and maintenances purposes, install at locations along the mainline to isolate a maximum of 800 linear feet of continuous mainline pipe, mainline loops, and mainline dead ends containing 5 or more remote control valves.

2. Locate at least 12-inches from and align with adjacent walls or edges of paved areas.

3. Provide 4-inch diameter pipe sleeve over operator nut or handle, installed in 10-inch valve box.

B. Quick Coupling Valve Assembly: Install at 200 foot centers along mainline for incidental water needs, wash down of drives, patios, and dumpster areas, and for manual watering of trees and shrubs as needed.

C. Manual Drain Valve Assembly: Install at low points in the mainline piping, and at the end of each mainline.

3.7 INSTALLATION OF SPRINKLER IRRIGATION COMPONENTS

A. Remote Control Valve (RCV) Assembly for Sprinkler Laterals:

1. Flush mainline before installation of RCV assembly.

2. Wire connectors and waterproof sealant shall be used to connect control wires to remote control valve wires. Install connectors and sealant per the manufacturer's recommendations.

3. Install only one RCV to a valve box. Locate valve box at least 36-inches from and align with nearby walls or edges of paved areas. Install RCV assemblies no closer than 48-inch from each other.



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PROJECT NO. 282.005

4. Adjust RCV to regulate the downstream operating pressure.

5. Attach ID tag with controller station number to control wiring.

B. Sprinkler Assembly:

1. Flush lateral pipe before installing sprinkler assembly.

2. Install rotor sprinklers on double swing joint assemblies and spray sprinklers on 18-inches of swing pipe.

3. Layout of sprinklers shall conform to the following criteria: a. Rotor sprinklers serving turf areas shall have a minimum distribution uniformity of 80%. b. Rotor sprinklers serving native grass areas shall have a minimum distribution uniformity of 50%. c. Spray sprinklers serving turf areas shall have a minimum distribution uniformity of 70%. d. All sprinkler zones shall be valved according to similar plant watering needs, slope, aspect, and precipitation rate. e. All sprinklers on a valve shall have matched precipitation rates. f. The largest and the smallest manufacturer’s nozzle for a particular rotor will not be used. g. Design pressure for rotor zones will be selected above the minimum manufacturer’s rated pressure for the rotor sprinkler. h. Design pressure for spray sprinklers shall be a minimum of 30 PSI.

4. Locate rotary sprinklers 6-inches from adjacent walls, fences, or edges of paved areas.

5. Locate spray sprinklers 3-inches from adjacent walls, fences, or edges of paved areas.

6. Set sprinklers perpendicular to the finish grade.

7. Supply appropriate nozzle or adjust arc of coverage of each sprinkler for best performance.

8. Adjust the radius of throw of each sprinkler for best performance.

3.8 INSTALLATION OF DRIP IRRIGATION COMPONENTS

A. Remote Control Valve (RCV) Assembly for Drip Laterals:

1. Flush mainline pipe before installing RCV assembly.

2. Locate away from visually prominent areas, or areas with heavy pedestrian traffic. Wire connectors and waterproof sealant shall be used to connect control wires to remote control valve wires. Connectors and sealant shall be installed as per the manufacturer's recommendations.

3. Install only one RCV to valve box. Locate at least 36-inches from and align with nearby walls or edges of paved areas. Install RCV assemblies no closer than 48-inch from each other.

B. Drip Emitter Assembly:

1. Locate near root ball of tree or shrub.

2. Flush lateral pipe before installing emitter assembly.



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PROJECT NO. 282.005

3. Cut emitter outlet distribution tubing square.

4. Install an access sleeve as part of each multiple-outlet emitter assembly for emitters located in turf areas.

5. Use tools and techniques recommended by the manufacturer.

C. Flush Cap Assembly: Install at the end of each drip irrigation lateral pipe.

D. Control Wire:

1. Bundle control wires where two or more are in the same trench. Bundle with pipe wrapping tape spaced at 10-foot intervals.

2. Provide a 24-inch excess length of wire in an 8-inch diameter loop at each 90 degree change of direction, at both ends of sleeves, and at 100-foot intervals along continuous runs of wiring.

Make wiring loop by turning control wire 5 turns around 1-inch pipe. Coil 36-inch length of wire within each remote control valve box.

3. Install common ground wire and one control wire for each remote control valve. Multiple valves on a single control wire are not permitted.

4. Install one (1) spare (extra) control wire for every four (4) remote control valves on the mainline. Route spare wires back to controller enclosure for possible future use...

5. If a control wire must be spliced, make splice with wire connectors and waterproof sealant, installed per the manufacturer's instructions. Locate splice in a valve box which contains an irrigation valve assembly, or in a separate 10-inch round valve box.

Use same procedure for connection to valves as for in-line splices.

7. Encase wire not installed with PVC mainline pipe in electrical conduit.

3.1 INSTALLATION OF CONTROL SYSTEM COMPONENTS

6. Install wire parallel with and under PVC mainline pipe. If wire is installed adjacent to section of metal pipe, separate wire from pipe minimum of 6-inches and install wire in PVC conduit.

A. Irrigation Controller Unit:

1) The Owners’ Representative will determine the exact site location upon commencement of contract.

2) Lightning Protection: A 25-foot continuous length (no splices allowed unless using exothermic welding process) of 6 AWG solid bare copper wire is to be attached to the plate by the manufacturer using an approved welding process. Install grounding plate to meet minimum requirements of Article 250-52 (d) of the 199 National

Electric Code. Plate must be made of a copper alloy. Wire is to be connected to the electric equipment ground lug as shown in the detail of page 1. The ground plate is to be installed to a minimum depth of 30”, or below the frost line if it is lower than 30”, at a location 8 feet from the electronic equipment and underground wires and cables.

Two (2) 50-pound bags of PowerSet



[Paige Electric part number

1820058] earth contact material must be spread so that it surrounds the copper plate evenly along its length within a 6” wide trench. Salts,



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PROJECT NO. 282.005 fertilizers, bentonite clay, cement, coke, carbon, and other chemicals are not to be used to improve soil conductivity because these materials are corrosive and will cause the copper electrodes to erode and become less effective with time.

3) Lightning protection: Provide on all remote control valve wiring as recommended by the manufacturer. Provide other components such as ground rod, grounding wire, etc., to manufacturer's recommendations.

4) Install primary surge protection arrestors on incoming power lines.

5) Install one valve output surge protection arrestor on each control wire and one for the common wire.

6) Attach wire markers to the ends of control wires inside the controller unit housing.

Label wires with the identification number (see drawings) of the remote control valve to which the control wire is connected.

7) Install a 120-volt, 15 amp switched and grounded 3-prong receptacle with GFIC inside the controller unit housing.

8) Connect control wires to the corresponding controller terminal.

B. Instrumentation:

1) Install sensors per the installation details and manufacturer's recommendations.

Install at locations shown on the drawings.

2) Install electrical connections between irrigation controller and sensors per manufacturer's recommendations.

C. Control Wire:

1) Bundle control wires where two or more are in the same trench. Bundle with pipe wrapping tape spaced at 10-foot intervals.

2) Control wiring may be chiseled into the soil utilizing a vibratory plow device specifically manufactured for pipe pulling and wire installation. Appropriate chisel must be used so that wire is fed into a chute on the chisel, and wire is not subject to pulling tension. Minimum burial depth must equal minimum cover previously listed.

3) Provide a 24-inch excess length of wire in an 8-inch diameter loop at each 90 degree change of direction, at both ends of sleeves, and at 100-foot intervals along continuous runs of wiring. Make wiring loop by turning control wire 5 turns around

1-inch pipe. Coil 24-inch length of wire within each remote control valve box.

4) Install common ground wire and one control wire for each remote control valve.

Multiple valves on a single control wire are not permitted.

5) If a control wire must be spliced, make splice with wire connectors and waterproof sealant, installed per the manufacturer's instructions. Locate splice in a valve box



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PROJECT NO. 282.005 which contains an irrigation valve assembly, or in a separate 6-inch round valve box.

Use same procedure for connection to valves as for in-line splices.

6) Unless noted on plans, install wire parallel with and under PVC mainline pipe. If wire is installed adjacent to section of metal pipe, separate wire from pipe minimum of 6-inches and install wire in PVC conduit.

7) Encase wire not installed with PVC mainline pipe in electrical conduit.

3.9 INSTALLATION OF OTHER COMPONENTS

A. Tools and Spare Parts:

1. Prior to the Pre-Maintenance Review, supply to the Owner operating keys, servicing tools, and test equipment.

2. Prior to Final Review, supply to the Owner the spare parts as required.

3.10 PROJECT RECORD (AS-BUILT) DRAWINGS

A. Maintain on-site and separate from documents used for construction, one complete set of construction documents as Project Documents. Keep documents current. Do not permanently cover work until as-built information is recorded.

B. Record pipe and wiring network alterations. Record work which is installed differently than shown on the construction drawings. Record accurate reference dimensions, measured from at least two permanent reference points, of each irrigation system valve, each backflow prevention device, each controller or control unit, each sleeve end, each stub-out for future pipe or wiring connections, and other irrigation components enclosed within a valve box.

C. Prior to Final Review, purchase from the Architect a reproducible mylar copy of the drawings.

Using technical drafting pen, duplicate information contained on the project drawings maintained on site. Label each sheet "Record Drawing". Completion of the Record Drawings will be a prerequisite for the Final Review.

3.11 MAINTENANCE

A. Upon completion of Final Review, maintain irrigation system for a duration of 30 calendar days.

Make periodic examinations and adjustments to irrigation system components so as to achieve the most desirable application of water.

B. Following completion of the Contractor's maintenance period, the Owner will be responsible for maintaining the system in working order during the remainder of the guarantee/warranty period, for performing necessary minor maintenance, for trimming around sprinklers, for protecting against vandalism, and for preventing damage during the landscape maintenance operation.

3.12 CLEAN-UP

A. Upon completion of work, remove from the site all machinery, tools, excess materials, and rubbish.



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END OF SECTION

PROJECT NO. 282.005



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SECTION 32 9200 - LAWNS AND GRASSES

PROJECT NO. 282.008

PART 1 - GENERAL

RELATED DOCUMENTS 1.1

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 1 Specification Sections, apply to this Section.

1.2

A.

SUMMARY

This Section includes the following:

1. Native grass Renovation of areas disturbed by construction

2. Erosion Control Blankets for seeded areas

3. Soil Preparation prior to seeding

1.3

A.

B.

DEFINITIONS

Finish Grade: Elevation of finished surface of planting soil.

Manufactured Soil: Soil produced off-site by homogeneously blending mineral soils or sand with stabilized organic soil amendments to produce topsoil or planting soil.

C. Planting Soil: Native or imported topsoil, manufactured topsoil, or surface soil modified to become topsoil mixed with soil amendments.

D. Subgrade: Surface or elevation of subsoil remaining after completing excavation, or top surface of a fill or backfill immediately beneath planting soil.

1.4

A.

B.

SUBMITTALS

Product Data: For each type of product indicated.

Pure Live Seed (PLS) Certification of Landscaping Turf and Native Grass Seed: From seed vendor for each grass-seed monostand or mixture stating the source of origin, the botanical and common names, percentage by weight of each species and variety, and percentage of purity, germination, and weed seed. Include the year of production and date of packaging.

E.

1. Provide seed of a local genotype and from a reputable local seed company, if available.

C. Product Certificates: For soil amendments and fertilizers, signed by product manufacturer.

D. Qualification Data: For Landscape Installer: a copy of CLT certificate and a list of successful projects in the past five years for Native Grass seeding. Include name of project, location, acreage of seeding, grass types, client contact and phone number.

Agricultural Topsoil Test Reports with soil amendment recommendations for stripped and stockpiled topsoil.

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F.

PROJECT NO. 282.008

Planting Schedule: Indicating anticipated planting dates for each type of planting.

G. Maintenance Instructions: Recommended procedures to be established by Owner for maintenance of seeded and sodded Turf Grass lawns during a calendar year and Native Grass areas during the first two years and then for a calendar year thereafter. Submit before expiration of required maintenance periods.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: A qualified landscape installer, with a Certified Landscape Technician

(CLT), whose work on projects of comparable size has resulted in successful native grass meadow establishment.

B.

1. Installer's Field Supervision: Require Installer to maintain an experienced full-time supervisor on Project site when planting is in progress.

B.

C. Topsoil Analysis: Furnish soil analysis by a qualified soil-testing laboratory stating percentages of organic matter; gradation of sand, silt, and clay content; cation exchange capacity; sodium absorption ratio; deleterious material; pH; and mineral and plant-nutrient content of topsoil.

Soil-Testing Laboratory Qualifications: An independent laboratory, recognized by the State

Department of Agriculture, with the experience and capability to conduct the testing indicated and that specializes in types of tests to be performed – Colorado Analytical Labs, or another approved by Architect.

1. Report suitability of topsoil for lawn growth. State recommended quantities of nitrogen, phosphorus, and potash nutrients and soil amendments to be added to produce satisfactory topsoil.

D. Pre-installation Conference(s): Conduct conference(s) at Project site for Native Grass seeding to comply with requirements in Division 1 Section "Project Management and Coordination."

1.6

A.

DELIVERY, STORAGE, AND HANDLING

Seed: Deliver seed in original sealed, labeled, and undamaged containers with certification tags attached.

1.7

A.

SCHEDULING

Planting Restrictions: Plant during one of the following periods and at time best suited for each type of seeding. Coordinate planting periods with maintenance periods to provide required maintenance from date of Substantial Completion.

1.

2.

Spring Planting: For Native Grass – Between March 1st and July 15th.

Fall Planting: For Native Grass – Between September 15th and November 30th.

Weather Limitations: Proceed with planting only when existing and forecasted weather conditions permit.

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1.8

A.

NATIVE GRASSES MAINTENANCE

PROJECT NO. 282.008

Begin maintenance immediately after each area is planted and continue until acceptable Native

Grass germination is evident, but for not less than 90 days from date that planting was completed and to Final Acceptance by the Landscape Architect.

B. Maintain and establish Native Grass by watering, weeding, mowing, trimming, replanting, and other operations. Roll, regrade, and replant bare or eroded areas and remulch. Following

Substantial Completion, the Owner takes over responsibility for watering only. The Contractor’s responsibility for all other maintenance procedures remains in effect for the remaining 90 day period, through establishment.

2.2

A.

1. Schedule watering to prevent wilting, puddling, erosion, and displacement of seed or mulch.

PART 2 – PRODUCTS

2.1

A.

NATIVE GRASS SEEDING

Grass Seed: Fresh, clean, dry, new-crop seed complying with AOSCA's "Journal of Seed

Technology; Rules for Testing Seeds" for purity and germination tolerances.

B. Native Grass Seed Mix: Vincent Drive 6 Acre Mix, provided by Sharp Bros. Seed Co., or equal species in percentages of PLS as follows:

15.7% Sideoats Grama, El Reno (Bouteloua curtipendula)

19.6% Western Wheatgrass, Arriba (Pascopyrum smithii)

14.7% Little Bluestem, Camper (Scizachyrium scoparium)

13.2% Buffalograss, Sharps IMP (Buchloe dactyloides)

10.3% Needle and Thread, VNS

7.3% Blue Grama, Lovington (Bouteloua gracilis)

7.3% Galleta, Viva (Pleuraphis jamesii)

6.9% Slender Wheatgrass, Revenue (Elymus trachycaulus ssp.)

5.0% Switchgrass, Blackwell (Panicum virgatum)

TOPSOIL

Imported Topsoil: ASTM D 5268, pH range of 6.5 to 8, a minimum of 4 percent organic material content; a soluble salt content of 0.0 to 3.0mmhos/cm using the saturated paste method; free of stones 1 inch or larger in any dimension and other extraneous materials harmful to plant growth.

1. Topsoil Source: Reuse surface soil stockpiled on-site. Clean surface soil of roots, plants, sod, stones, clay lumps, and other extraneous materials harmful to plant growth.

Supplement with imported or manufactured topsoil from off-site sources when quantities are insufficient. If necessary, obtain topsoil displaced from naturally well-drained construction or mining sites where topsoil occurs at least 4 inches deep; do not obtain from agricultural land, bogs or marshes.

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2.3

A.

INORGANIC SOIL AMENDMENTS

PROJECT NO. 282.008

Provide amendments in the amounts recommended by the Topsoil Analysis Report to produce suitable topsoil for each type of grass. The following are potential amendments

1. Sulfur: Granular, biodegradable, containing a minimum of 90 percent sulfur, with a minimum 99 percent passing through No. 6 sieve and a maximum 10 percent passing through No. 40 sieve.

2. Iron Sulfate: Granulated ferrous sulfate containing a minimum of 20 percent iron and 10 percent sulfur.

3. Perlite: Horticultural perlite, soil amendment grade.

ORGANIC SOIL AMENDMENTS

Provide amendments, Compost specified below, in the amounts recommended below.

B.

1. For Native Grass areas at the rate of 1 cu yd/1000sf.

Compost: Fully-composted (Class I), mature, stablilzed, and weed-free organic matter, pH range of 6.0 to 9; moisture content 20 to 40 percent by weight; 100 percent passing through

1/2-inch sieve; soluble salt content of 0.0 to 10.0 mmhos/cm using the 1 to 5 extract method; not exceeding 0.5 percent inert contaminants and free of substances toxic to plantings; and as follows:

1. Organic Matter Content: 225 lbs/cy wet weight on “as received” basis.

2. Feedstock: Agricultural, food, or industrial residuals; biosolids; yard trimmings; or sourceseparated or compostable mixed solid waste.

2.5

A.

PLANTING ACCESSORIES

Selective Herbicides, pre-emergents and soil sterilization agents: At the contractor’s option, to aid in weed control during grass establishment. Use only EPA registered and approved, of type recommended by manufacturer for application.

2.6

A.

FERTILIZER

Provide fertilizer in the amounts recommended below for the Turf Lawns; no fertilizer is required for the Native Grasses.

1. Superphosphate: Commercial, phosphate mixture, soluble; a minimum of 20 percent available phosphoric acid.

2. Slow-Release Fertilizer: Granular or pelleted fertilizer consisting of 50 percent waterinsoluble nitrogen, phosphorus, and potassium, in the following compositions (and in the amounts recommended in the Topsoil Analysis Report): a. For Native Seed areas, Composition: 18 percent nitrogen, 46 percent phosphorous, and 0 percent potassium by weight (18-46-0)

2.7 EROSION-CONTROL MATERIALS

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A.

PROJECT NO. 282.008

Erosion-Control Blankets: North American Green’s SC150 (Basis of Design)

1. Extended-term, machine produced blanket of 70% agricultural straw and 30% coconut fiber matrix enclosed in a photodegradable plastic mesh. Blankets shall have a functional longevity of up to 24 months. Include manufacturer’s recommended steel wire staples, 6 inches long.

PART 3 – EXECUTION

3.1

A

PLANTING SOIL MIX

Planting Soil Mix: For grass areas mix topsoil with soil amendments and fertilizers in the quantities recommended by the Top Soil Test Report.

3.2

A.

EXAMINATION

Examine areas to receive lawns and grass for compliance with requirements and presence of weed seed and other conditions affecting performance. Proceed with installation only after unsatisfactory conditions have been corrected.

3.3

A.

PREPARATION

Protect structures, utilities, sidewalks, pavements, and other facilities, trees, shrubs, and plantings from damage caused by planting operations.

B.

1. Protect adjacent and adjoining areas from hydromulching overspray.

Provide erosion-control measures to prevent erosion or displacement of soils and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways.

3.4 NATIVE GRASS RENOVATION

A. Renovate native grass areas disturbed by construction.

B. Renovate existing native grass areas damaged by Contractor's operations, such as construction of new sign, site grading operations, underground utilites installation, tree and shrub planting, storage of materials or equipment and movement of vehicles.

1. Reestablish native grass where settlement or washouts occur or where minor regrading is required.

2. Provide new planting soil as required.

C. Remove vegetation from diseased or unsatisfactory grass areas; do not bury in soil.

D. Remove topsoil containing foreign materials resulting from Contractor's operations, including oil drippings, fuel spills, stone, gravel, and other construction materials, and replace with new planting soil.

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PROJECT NO. 282.008

E. Remove weeds before seeding. Where weeds are extensive, apply selective herbicides as required. Do not use pre-emergence herbicides.

F. Remove waste and foreign materials, including weeds, soil cores, grass, vegetation, and turf, and legally dispose of them off Owner's property.

G. Till stripped, bare, and compacted areas thoroughly to a soil depth of 6 inches.

H. Apply soil amendments and initial fertilizers required for establishing new lawns and mix thoroughly into top 4 inches of existing soil. Provide new planting soil to fill low spots and meet finish grades.

I. Drill seed or broadcast and lightly rake into soil. Apply drilled seed at a rate of 4 lbs / 1000 sf for native grass. Double the sowing rate for braodcast seeding.

3.5

J. Protect newly seeded areas with a 1-1/2” thick continuous coating of fiber mulch or erosion control blankets as specified on slopes of 4:1 or greater.

K. Water newly planted areas and keep moist until new meadow is established.

L. Monitor seeded areas regularly, for emergence of weeds. Mowing is the first option for control of broadleaf weeds. If weed problems persist, use a light application of an appropriate broad leaf herbicide at recommended rates.

SATISFACTORY LAWNS

A. Satisfactory Seeded Lawn: At end of maintenance period, a healthy, uniform, close stand of grass has been established, free of weeds and surface irregularities, with coverage exceeding

90 percent over any 10 sq. ft. and bare spots not exceeding 5 by 5 inches.

B. Reestablish lawns that do not comply with requirements and continue maintenance until lawns are satisfactory.

3.6

A.

CLEANUP AND PROTECTION

Promptly remove soil and debris created by all seeding work from paved areas. Clean wheels of vehicles before leaving site to avoid tracking soil onto roads, walks, or other paved areas.

B. Erect barricades and warning signs as required to protect newly planted areas from traffic.

Maintain barricades throughout maintenance period and remove after lawn is established.

C. Remove erosion-control measures after grass establishment period.

END OF SECTION

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SECTION 32 9300 - EXTERIOR PLANTS

PART 1 – GENERAL

PROJECT NO. 282.008

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1.

2.

3.

Trees.

Shrubs.

Perennials.

4.

5.

Soil Amendments, mulches, fertilizer, edging, and miscellaneous planting accessories,

Landscape boulders – Owner provided, Contractor installed as indicated on drawings.

1.3 DEFINITIONS

A. Balled and Burlapped Stock: Exterior plants dug with firm, natural balls of earth in which they are grown, with ball size not less than diameter and depth recommended by ANSI Z60.1 for type and size of tree or shrub required; wrapped, tied, rigidly supported, and drum-laced as recommended by ANSI Z60.1.

B. Container-Grown Stock: Healthy, vigorous, well-rooted exterior plants grown in a container with well-established root system reaching sides of container and maintaining a firm ball when removed from container. Container shall be rigid enough to hold ball shape and protect root mass during shipping and be sized according to ANSI Z60.1 for kind, type, and size of exterior plant required.

C. Finish Grade: Elevation of finished surface of planting soil.

D. Manufactured Topsoil: Soil produced off-site by homogeneously blending mineral soils or sand with stabilized organic soil amendments to produce topsoil or planting soil.

E. Planting Soil: Native or imported topsoil, manufactured topsoil, or surface soil modified to become topsoil; mixed with soil amendments.

F. Subgrade: Surface or elevation of subsoil remaining after completing excavation, or top surface of a fill or backfill, before placing planting soil.

1.4 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Samples for Verification: For each of the following:

EXTERIOR PLANTS


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1.

2.

3.

PROJECT NO. 282.008

1 lb of organic mulch for each color and texture required, in labeled plastic bags.

2 lbs of gravel mulch in at least three colors, labeled in plastic bags.

Edging materials and accessories, of manufacturer's standard size, for approval.

C. Product Certificates: For each type of manufactured product, signed by product manufacturer, and complying with the following:

1.

2.

Manufacturer's certified analysis for standard products.

Analysis of other materials by a recognized laboratory made according to methods established by the Association of Official Analytical Chemists, where applicable.

D. Qualification Data: For Landscape Installer, copy of CLT certificate.

E. Material Test Reports: For on-site topsoil and imported topsoil if sufficient quantities of on-site topsoil are not available.

F. Planting Schedule: Indicating anticipated planting dates for exterior plants.

G. Maintenance Instructions: Recommended procedures to be followed by Owner for maintenance of exterior plants during a calendar year. Submit before expiration of required maintenance periods.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: A qualified landscape installer, with a Certified Landscape Technician

(CLT) whose work on projects of comparable size has resulted in successful establishment of exterior plants.

1. Installer's Field Supervision: Require Installer to maintain an experienced full-time supervisor on Project site when exterior planting is in progress.

B. Soil-Testing Laboratory Qualifications: An independent laboratory, recognized by the State

Department of Agriculture, with the experience and capability to conduct the testing indicated and that specializes in types of tests to be performed – Colorado Analytical Labs, or another approved by Landscape Architect.

C. Topsoil Analysis: Furnish soil analysis by a qualified soil-testing laboratory stating percentages of organic matter; gradation of sand, silt, and clay content; cation exchange capacity; sodium absorption ratio; deleterious material; pH; and mineral and plant-nutrient content of topsoil.

1. Report suitability of topsoil for plant growth. State recommended quantities of nitrogen, phosphorus, and potash nutrients and soil amendments to be added to produce satisfactory topsoil.

D. Provide quality, size, genus, species, and variety of exterior plants indicated, complying with applicable requirements in ANSI Z60.1, "American Standard for Nursery Stock."

E. Tree and Shrub Measurements: Measure according to ANSI Z60.1 with branches and trunks or canes in their normal position. Do not prune to obtain required sizes. Take caliper measurements 6 inches above ground for trees up to 4-inch caliper size, and 12 inches above ground for larger sizes. Measure main body of tree or shrub for height and spread; do not measure branches or roots tip-to-tip.

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PROJECT NO. 282.008

F. Observation: Landscape Architect may observe trees and shrubs either at place of growth or at site before planting for compliance with requirements for genus, species, variety, size, and quality. Landscape Architect retains right to observe trees and shrubs further for size and condition of balls and root systems, insects, injuries, and latent defects and to reject unsatisfactory or defective material at any time during progress of work. Remove rejected trees or shrubs immediately from Project site.

1. Notify Landscape Architect of sources of planting materials seven days in advance of delivery to site.

G. Planting Preinstallation Conference: Conduct conference at Project site to comply with requirements in Division 1 Section "Project Management and Coordination."

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver exterior plants freshly dug.

B. Do not prune trees and shrubs before delivery, except as approved by Landscape Architect.

Protect bark, branches, and root systems from sun scald, drying, sweating, whipping, and other handling and tying damage. Do not bend or bind-tie trees or shrubs in such a manner as to destroy their natural shape. Provide protective covering of exterior plants during delivery. Do not drop exterior plants during delivery.

C. Handle planting stock by root ball.

D. Deliver exterior plants after preparations for planting have been completed and install immediately. If planting is delayed more than six hours after delivery, set exterior plants and trees in shade, protect from weather and mechanical damage, and keep roots moist.

1. Set balled stock on ground and cover ball with soil, peat moss, sawdust, or other acceptable material.

2. Do not remove container-grown stock from containers before time of planting.

3. Water root systems of exterior plants stored on-site with a fine-mist spray. Water as often as necessary to maintain the root systems in a moist condition.

1.7 COORDINATION

A. Planting Restrictions: Plant during one of the following periods. Coordinate planting periods with maintenance periods to provide required maintenance from date of Substantial Completion.

1. Spring Planting: Between April 1st and July 15th.

2. Fall Planting: Between August 15th and October 30th.

B. Weather Limitations: Proceed with planting only when existing and forecasted weather conditions permit.

C. Coordination with seeding: Plant trees and shrubs after finish grades are established and before seeding, unless otherwise acceptable to Landscape Architect.

1. When planting trees and shrubs after seeding, protect seeded areas and promptly repair damage caused by planting operations.

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PROJECT NO. 282.008

1.8 WARRANTY

A. Warranty: Warrant the following exterior plants, for the warranty period indicated against defects including death and unsatisfactory growth, except for defects resulting from lack of adequate maintenance, neglect, or abuse by Owner, or incidents that are beyond Contractor's control.

1.

2.

3.

Warranty Period for Trees and Shrubs: One year from date of Substantial Completion.

Warranty Period for Perennials: One year from date of Substantial Completion.

Remove dead exterior plants immediately. Replace immediately unless required to plant in the succeeding planting season.

4. Replace exterior plants that are more than 25 percent dead or in an unhealthy condition at end of warranty period.

5. A limit of one replacement of each exterior plant will be required, except for losses or replacements due to failure to comply with requirements.

1.9 MAINTENANCE

A. Trees and Shrubs: Maintain for the following maintenance period by pruning, cultivating, watering, weeding, fertilizing, restoring planting saucers, tightening and repairing stakes and guy supports, and resetting to proper grades or vertical position, as required to establish healthy, viable plantings. Spray as required to keep trees and shrubs free of insects and disease. Restore or replace damaged tree wrappings.

1. Maintenance Period: From the date of planting through Substantial Completion, but for no less than 30 days during the growing season(s) and until Final Acceptance by the

Landscape Architect.

B. Perennials: Maintain for the following maintenance period by watering, weeding, fertilizing, and other operations as required to establish healthy, viable plantings. Neatly cut to 6-inches above the ground in late February or early March.

1. Maintenance Period: From the date of planting through Substantial Completion, but for no less than 30 days during the growing season(s) and until Final Acceptance by the

Landscape Architect.

PART 2 - PRODUCTS

2.1 TREE AND SHRUB MATERIAL

A. General: Furnish nursery-grown trees and shrubs complying with ANSI Z60.1, with healthy root systems developed by transplanting or root pruning. Provide well-shaped, fully branched, healthy, vigorous stock free of disease, insects, eggs, larvae, and defects such as knots, sun scald, injuries, abrasions, and disfigurement.

B. Grade: Provide trees and shrubs of sizes and grades complying with ANSI Z60.1 for type of trees and shrubs required. Trees and shrubs of a larger size may be used if acceptable to

Landscape Architect, with a proportionate increase in size of roots or balls.

C. Label each tree and shrub with securely attached, waterproof tag bearing legible designation of botanical and common name.

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PROJECT NO. 282.008

D. If formal arrangements or consecutive order of trees or shrubs is shown, select stock for uniform height and spread, and number label to assure symmetry in planting.

2.2 TREES

A. Shade Trees: Single-stem trees with straight trunk, well-balanced crown, and intact leader, of height and caliper indicated, complying with ANSI Z60.1 for type of trees required.

1. Provide balled and burlapped trees.

B. Small Trees: Branched or pruned naturally according to species and type, with relationship of caliper, height, and branching according to ANSI Z60.1; stem form as follows:

1.

2.

Stem Form: Single stem and clump form as indicated o the drawings..

Provide balled and burlapped trees.

2.3 DECIDUOUS SHRUBS

A. Form and Size: Deciduous shrubs with not less than the minimum number of canes required by and measured according to ANSI Z60.1 for type, shape, and height of shrub.

2.4

1. Provide container-grown shrubs.

CONIFEROUS EVERGREENS

A. Form and Size: Specimen-quality, exceptionally heavy, tightly knit, symmetrically shaped coniferous evergreens and the following grade:

1. Heavy Grade: "XX."

2. Provide balled and burlapped trees.

2.5 PERENNIALS

A. Perennials: Provide specimen quality plants of species indicated, established and well rooted in pots or similar containers, and complying with ANSI Z60.1 for type, shape and height.

1. Provide container grown plants.

2.6 TOPSOIL

A. Topsoil: ASTM D 5268, pH range of 6.5 to 8, a minimum of 4 percent organic material content; soluble salt content of 0.0 to 3.0mmhos/cm using the saturated paste method; free of stones 1 inch or larger in any dimension and other extraneous materials harmful to plant growth.

1. Topsoil Source: Reuse surface soil stockpiled on-site. Clean surface soil of roots, plants, sod, stones, clay lumps, and other extraneous materials harmful to plant growth. a. Supplement with imported or manufactured topsoil from off-site sources when quantity or quality is insufficient. Obtain topsoil displaced from naturally welldrained construction or mining sites where topsoil occurs at least 4 inches

EXTERIOR PLANTS


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PROJECT NO. 282.008 deep; do not obtain from agricultural land, bogs or marshes.

2.7 INORGANIC SOIL AMENDMENTS

A. Provide amendments in the amounts recommended in the Topsoil Report to produce suitable topsoil for each type of plant. Items indicted below are potential additives.

1. Sulfur: Granular, biodegradable, containing a minimum of 90 percent sulfur, with a minimum 99 percent passing through No. 6 sieve and a maximum 10 percent passing through No. 40 sieve, at the rate of 1.2 lbs / 1000 SF.

2.8 ORGANIC SOIL AMENDMENTS:

A. Provide amendments as Compost specified below, at a rate of 3 cu yds/1000sf.

1. Compost: Fully-composted, (Class I) mature, stablized, and weed-free organic matter, pH range of 6 to 9; moisture content 20 to 40 percent by weight; 100 percent passing through 1-inch sieve; soluble salt content of 0.0 to 10.0 mmhos/cm using the 1 to 5 extract method; not exceeding 0.5 percent inert contaminants and free of substances toxic to plantings; and as follows: a. Organic Matter Content: 225 lbs/cy wet weight on an “as received” basis. b. Feedstock: Agricultural, food, or industrial residuals; biosolids; yard trimmings; or source-separated or compostable mixed solid waste.

2.9 FERTILIZER

A. Provide fertilizers in the amounts recommended below to produce suitable topsoil for each type of plant.

1. Bonemeal: Commercial, raw or steamed, finely ground; a minimum of 4 percent nitrogen and 10 percent phosphoric acid.

2. Slow-Release Fertilizer: Granular or pelleted fertilizer consisting of 50 percent water insoluble nitrogen at the rate of 1lb/1000sf.

2.10 MULCHES

A. Organic Mulch: Free from deleterious materials and suitable as a top dressing for trees and shrubs:

1. deep.

Type: Shredded Western red cedar - “gorilla mulch”- 100% virgin fibrous wood mulch, 6:”

B. Gravel Mulch: 3/4” angular, colored rock mulch.

2.11 WEED-CONTROL BARRIERS

A. Nonwoven Fabric: Polypropylene or polyester fabric, 3.5 oz./sq. yd. minimum.

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2.12 STAKES AND GUYS

A. Upright and Guy Stakes: Rough-sawn, sound, new hardwood, redwood, or pressure- preservative-treated softwood, free of knots, holes, cross grain, and other defects, 2 by 2 inches by length indicated, pointed at one end.

B. Guy Cable: 5-strand, 3/16-inch- diameter, galvanized-steel cable, with zinc-coated turnbuckles, a minimum of 3 inches long, with two 3/8-inch galvanized eyebolts.

C. Nylon Trunk Straps: Reinforced nylon at least 1-1/2 inch wide, with grommets to accept guy cable required to protect tree trunks from damage.

D. Flags: Standard surveyor's plastic flagging tape, white, 6 inches long.

2.13 LANDSCAPE EDGINGS

A. Steel Edging: Standard commercial-steel edging, rolled edge, fabricated in sections of standard lengths, with loops stamped from or welded to face of sections to receive stakes.

1. Edging Size: 3/16 inch wide by 4 inches deep.

2. Stakes: Tapered steel, a minimum of 12 inches long.

3. Accessories: Standard tapered ends, corners, and splicers.

4. Finish: painted – manufacturer’s standard green color.

B. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Steel Edging: a. “Duraedge” by the J.D. Russell Company or approved equal.

2.14 MISCELLANEOUS PRODUCTS

A. Trunk-Wrap Tape: Two layers of crinkled paper cemented together with bituminous material, 4inch- wide minimum, with stretch factor of 33 percent.

2.15 PLANTING SOIL MIX

A. Planting Soil Mix: Mix topsoil with the soil amendments and fertilizers in the quantities recommended above.

2.16 LANDSCAPE BOULDERS

A. Siloam stone: quarried blocks in sizes and quantity to match layout indicated on the plans.

PART 3 - EXECUTION

3.1 EXAMINATION

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PROJECT NO. 282.008

A. Examine areas to receive exterior plants for compliance with requirements and conditions affecting installation and performance. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities, and lawns and existing exterior plants from damage caused by planting operations.

B. Provide erosion-control measures to prevent erosion or displacement of soils and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways. Lay out individual tree and shrub locations and areas for multiple exterior plantings. Stake locations, outline areas, adjust locations when requested, and obtain Landscape Architect's acceptance of layout before planting. Make minor adjustments as required.

C. Lay out exterior plants at locations directed by Landscape Architect. Stake locations of individual trees and shrubs and outline areas for multiple plantings.

D. Loosen subgrade of planting beds to a minimum depth of 8 inches. Remove stones larger than

1-1/2 inches in any dimension and sticks, roots, rubbish, and other extraneous matter and legally dispose of them off Owner's property.

1. Spread topsoil, apply recommended soil amendments and fertilizer on surface, and thoroughly blend planting soil mix. a. Delay mixing fertilizer with planting soil if planting will not proceed within a few days. Spread planting soil mix to a minimum depth of 6 inches, or as deep as necessary to meet underground drainage system where required and not less than required to meet finish grades after natural settlement. Do not spread if planting soil or subgrade is frozen, muddy, or excessively wet. b. Spread approximately one-half the thickness of planting soil mix over loosened subgrade. Mix thoroughly into top 4 inches of subgrade. Spread remainder of planting soil mix.

E. Finish Grading: Grade planting beds to a smooth, uniform surface plane with loose, uniformly fine texture. Roll and rake, remove ridges, and fill depressions to meet finish grades.

F. Restore planting beds if eroded or otherwise disturbed after finish grading and before planting.

3.3 TREE AND SHRUB EXCAVATION

A. Pits and Trenches: Excavate circular pits with sides sloped inward. Trim base, leaving center area raised slightly to support root ball and assist in drainage. Do not further disturb base.

Scarify sides of plant pit smeared or smoothed during excavation.

1. Excavate approximately two times as wide as ball diameter for balled and burlapped and container-grown stock. If drain tile is shown or required under planted areas, excavate to top of porous backfill over tile.

B. Subsoil removed from excavations may be used as backfill unless it is unsuitable clay that cannot be satisfactorily amended.

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PROJECT NO. 282.008

C. Obstructions: Notify Landscape Architect if unexpected rock or obstructions detrimental to trees or shrubs are encountered in excavations. Hardpan Layer: Drill 6-inch-diameter holes into freedraining strata or to a depth of 10 feet, whichever is less, and backfill with free-draining material.

D. Drainage: Notify Landscape Architect if subsoil conditions evidence unexpected water seepage or retention in tree or shrub pits.

E. Fill one tree excavation in each planting area with water and allow to percolate away before positioning trees and shrubs. Notify Landscape Architect if water does not drain away in eight

(8) hours.

3.4 TREE AND SHRUB PLANTING

A. Set balled and burlapped stock plumb and in center of pit or trench with top of root ball 1 inch above adjacent finish grades.

1. Remove burlap and wire baskets from tops of root balls and partially from sides, but do not remove from under root balls. Remove pallets, if any, before setting. Do not use planting stock if root ball is cracked or broken before or during planting operation. Place planting soil mix around root ball in layers, tamping to settle mix and eliminate voids and air pockets. When pit is approximately one-half backfilled, water thoroughly before placing the remainder of backfill. Repeat watering until no more water is absorbed. Water again after placing and tamping final layer of planting soil mix.

B. Set container-grown stock plumb and in center of pit or trench with top of root ball 1 inch adjacent finish grades.

1. Carefully remove root ball from container without damaging root ball or plant.

2. Place planting soil mix around root ball in layers, tamping to settle mix and eliminate voids and air pockets. When pit is approximately one-half backfilled, water thoroughly before placing remainder of backfill. Repeat watering until no more water is absorbed.

Water again after placing and tamping final layer of planting soil mix.

3. Organic Mulching: Apply 3-inch average thickness of organic mulch extending to just beyond the edge of planting pit or trench. Do not place mulch within 3 inches of trunks or stems.

C. Wrap thin-barked trees of 2-inch caliper and larger with trunk-wrap tape before winter. Start at base of trunk and spiral cover trunk to height of first branches. Overlap wrap, exposing half the width, and securely attach without causing girdling. Inspect tree trunks for injury, improper pruning, and insect infestation; take corrective measures required before wrapping.

3.5 TREE AND SHRUB PRUNING

A. Prune to remove dead or damaged branches according to standard horticultural practice, Do not thin or shape trees and shrubs without specific direction by the Landscape Architect.

3.6 GUYING AND STAKING

A. Upright Staking and Tying: Stake trees of 2-inch or greater caliper. Stake trees of less than 2inch caliper only as required to prevent wind tip-out. Use a minimum of 2 stakes of length required to penetrate at least 18 inches below bottom of backfilled excavation and to extend at

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PROJECT NO. 282.008 least 72 inches above grade. Set vertical stakes and space to avoid penetrating root balls or root masses. Support trees with two strands of tie wire through nylon trunk straps at contact points with tree trunk. Allow enough slack to avoid rigid restraint of tree. Use the number of stakes as follows:

1. Use 2 stakes for trees up to 12 feet high and 2-1/2 inches or less in caliper; 3 stakes for trees greater than 12 feet high and up to 4 inches in caliper. Space stakes equally around trees.

3.7 PERENNIAL PLANTING

A. Set out and space ground cover plants as indicated on the drawings.

B. Dig holes large enough to allow spreading of roots, and backfill with planting soil.

C. Work soil around roots to eliminate air pockets and leave a slight saucer indentation around plants to hold water.

D. Water thoroughly after planting, taking care not to cover plant crowns with wet soil.

E. Protect plants from hot sun and wind; remove protection if plants show evidence of recovery from transplanting shock.

3.8 PLANTING BED MULCHING

A. Install weed-control barriers before mulching according to manufacturer's written instructions.

Completely cover area to be mulched, overlapping edges a minimum of 6 inches.

1. Material and Seam Treatment: Non-woven fabric with seams lapped and pinned.

B. Mulch backfilled surfaces of planting beds and other areas indicated.

1. Mulch: Apply 3-inch average thickness of mulch as shown on the planting details, and finish level with adjacent finish grades. Do not place mulch against plant stems.

3.9 EDGING INSTALLATION

A. Steel Edging: Install steel edging where indicated according to manufacturer's written instructions. Anchor with steel stakes spaced approximately 30 inches apart, driven below top elevation of edging.

3.10 CLEANUP AND PROTECTION

A. During exterior planting, keep adjacent paving clean and construction work area in an orderly condition.

B. Protect exterior plants from damage due to landscape operations, operations by

Contractors, other trades and others. Maintain protection during installation and maintenance periods. Treat, repair, or replace damaged exterior planting.

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3.11 DISPOSAL

A. Disposal: Remove surplus soil and waste material, including excess subsoil, unsuitable soil, trash, and debris, and legally dispose of them off Owner's property.

END OF SECTION

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University of Colorado Colorado Springs North Campus Sign

University of Colorado

Colorado Springs

North Campus Sign

Landscape Specifications

Construction Documents

October 31, 2011

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University of Colorado Colorado Springs North Campus Sign

University of Colorado

Colorado Springs

North Campus Sign

Landscape Specifications

Construction Documents

October 31, 2011

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