ST1002-CS110726(10/11/2011) Keith Marvin -Old Town Specs Page 1
From:
Keith Marvin
To:
Elias, John
CC:
Steer, Matt
Date:
7/26/20118: 10 AM
Subject:
Old Town Specs
Attachments:
Ladscape & Irrigation Specs.pdf
John & Matt,
Attached are the specifications for the landscape and irrigation for the Old Town Project. The plans are here in our office if
you need to compare them against the specs.
Please send me any comments you may have at your earliest convenience.
Thanks,
Keith
Keith Marvin, P.E.
Project Engineer
(972) 304 -3681
32 84 23 LANDSCAPE IRRIGATION
1.00 GENERAL
1.01 WORK INCLUDED
Provide skilled labor, materials; and equipment for a complete operable landscape irrigation
system. Provide irrigation for all turf, shrubs and trees. Provide the system as indicated on the
contract drawings and as specified herein. System is a two wire type low voltage zone control
arrangement. Coordinate ET Based controller with City of Coppell's weather station.
1.02 QUALITY ASSURANCE
A. ACCEPTABLE MANUFACTURERS
Manufacturers of irrigation specialties shall be experienced in the production of this type of
equipment. The Owner requires products to match the current Town Standards. Substitutions
shall comply with these standards and be approved in writing by the City of Coppell prior to
submitting bids. Recognized manufacturers are as follows:
1. Hunter Industries
2. Rainbird Corporation
3. Irritrol
4. Netafim
5. Arad
6. Motorola Irrinet
7. The Toro Company, Irrigation Division
8. Weathermatic, Division of Telsco Industries
B. INSTALLER'S REQUIREMENTS
1. Provide a complete design and installation of the landscape irrigation system utilizing the
basic information indicated on the drawings in accordance with the Texas Administrative
Code, Title 30, ENVIRONMENTAL QUALITY; Chapter 344, LANDSCAPE IRRIGATION.
Irrigation contractor shall be experienced with ET based central control systems utilizing
on site weather stations, two wire zone technology, low flow matched precipitation
sprinklers or drip for turf, bubblers for groundcover, shrubs, and trees for a complete and
operational water conservation system.
2. Contractor, irrigators, technicians and installers providing landscape irrigation for this
project shall be licensed by the Texas Commission on Environmental Quality (TCEQ). At
least one licensed landscape irrigator shall be on the jobsite during construction at all
times providing on -site supervision of the installation of an irrigation system and shall
provide their TCEQ irrigators card when requested by the OWNER, or Engineers
representative.
3. Irrigation Contractors shall be experienced with installation, design parameters
programming input data requirements for Motorola Interspec based central control
systems and Interspec ARAD master control valve meter combination.
4. Provide Motorolla Interspex ICC /Irrinet ACE /M -DC controllers and program to interface
with the central system utilized by the city. These shall be stand alone units installed on a
4" thick concrete pad with 4' rebar @ 12" on center each way. Install 4' sleeves with long
sweep elbows for low voltage wiring. Seal conduit to prevent moisture from entering
controller housing.
5. Install products in compliance with the recommendations of the manufacturer. DO NOT
install products which are out of compliance with the manufacturer's recommendations
without obtaining written consent from the Engineers licensed Irrigator.
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CPL09446 — Old Town Coppell
6. For the controllers provide a certificate signed by the manufacturer's representative
indicating that the system has been installed and programmed in accordance with the
manufacturer's recommendations. Provide this certificate to the owner with the O & M
Manual. Provide a detailed programming input data list for every zone.
7. Provide a detailed typewritten legend in MS Word or PDF and a hard copy indicating the
zone, zone number, and all data input into the ET Based control system for every zone
and flow device.
8. Design of the pipe system shall be based on a 5 feet per second (FPS) maximum
velocity. The contractor shall replace piping which exceeds this velocity at his own
expense.
9. The landscape irrigation contractor is required by the contract documents herein to
provide a complete design and installation of the system, the requirements of the Texas
Administrative Code, Title 30, ENVIRONMENTAL QUALITY; Chapter 344,LANDSCAPE
IRRIGATION; shall be strictly complied with, including but not limited to Rule 344.61:
a. "An irrigator shall prepare an irrigation plan for each site where a new irrigation
system will be installed. A paper or electronic copy of the irrigation plan must be on
the job site at all times during the installation of the irrigation system. A drawing
showing the actual installation of the system is due to each irrigation system owner
after all new irrigation system installations. During the installation of the irrigation
system, variances from the original plan may be authorized by the licensed irrigator if
the variance from the plan does not:
1) diminish the operational integrity of the irrigation system;
2) violate any requirements of this chapter; and
3) go unnoted in red on the irrigation plan.
b. The irrigation plan must include complete coverage of the area to be irrigated. If a
system does not provide complete coverage of the area to be irrigated, it must be
noted on the irrigation plan.
c. All irrigation plans used for construction must be drawn to scale. The plan must
include, at a minimum, the following information:
1) the irrigator's seal, signature, and date of signing;
2) all major physical features and the boundaries of the areas to be watered;
3) a North arrow;
4) a legend;
5) the zone flow measurement for each zone;
6) location and type of each:
a) controller;
b) sensor (for example, but not limited to, rain, moisture, wind, flow, or freeze);
7) location, type, and size of each:
a) water source, such as, but. not limited to a water meter and point(s) of
connection;
b) backflow prevention device;
c) water emission device, including, but not limited to, spray heads, rotary
sprinkler heads, quick - couplers, bubblers, drip, or micro - sprays;
d) valve, including, but not limited to, zone valves, master valves, and isolation
valves;
e) pressure regulation component; and
f) main line and lateral piping.
g) the scale used; and
h) the design pressure."
10. Where the Irrigation contractor desires to utilize the drawings in the contract document
set, the costs to provide CADD drawings incurred by the Engineer shall be paid for by the
Contractor. These costs shall be included in the bid and identified separately.
11. Pop -up spray sprinklers in turf shall be a minimum 4" body, unless otherwise indicated.
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CPL09446 — Old Town Coppell
12. The system shall be multi -zoned and fully automatic.
13. Provide manual drain valve at low points in mainline. Provide a turf box and a minimum of
20 lbs. of pea gravel at the base of the drain box.
14. Provide automatic drain valves for each zone. Provide a turf box and a minimum of 2 lbs.
of pea gravel at the base of the drain box.
15. The sprinklers shall be spaced no further than manufacturer's current specification.
16. Adjustable arc heads shall be used on borders. Overspray shall be minimized.
17. Nozzles shall be selected from manufacturer's specifications that provide matched
precipitation rates.
18. Evapotranspiration (ET) based controllers, including City of Coppell's weather stations
shall be manually overridden during the establishment of newly planted landscaping
materials. As soon thereafter as the landscape contractor indicates that their materials
are established, change the controller over to automatic site based ET control.
19. Application rate shall be the optimum condition for the soil type, accomplished by the
nozzle style and /or the controller timing and sequencing.
20. The installation of drip irrigation systems shall comply with the manufacturer's
requirements.
21. Power wiring and grounding to the controller shall be installed by a licensed master
electrical contractor, and is the responsibility of this contractor.
22. Each controller shall be connected to a separate, unswitched circuit with its own ground
fault circuit breaker.
23. Wiring of controllers, weather stations and valves shall comply with the manufacturer's
instructions and NEC. Bury conductors to the weather station from the controller in
conduit. Thermostat wire shall not be used for low voltage systems. Provide rated
conductors in rigid electrical conduit with weather -tight seals. Wire size and type for power
supply shall be in accordance with the National Electrical Code.
24. Provide thrust blocks or approved restraints on all pressure mains exceeding 85psig at 90
degree elbows and bullhead tees.
25. Provide metal location tape on all sleeves beneath concrete drives and walks. Provide
Schedule 40 PVC sleeves for low voltage wiring beneath concrete drives and walks wider
than 5 ft 0 in. Provide threaded caps on both ends of sleeves installed for future use.
Extend sleeves a minimum of 12" beyond concrete on both sides.
26. System shall be zoned and timed at non -peak water periods (e.g. early morning before
6:00 a.m. and after 7:00 pm depending on the operations of the facility). ET based
systems shall obtain the available watering window from the Owner and integrate that
period into the controller programming.
27. Polyethylene tubing used for pop up sprinklers, bubblers, rotary gear driven sprinklers
shall not exceed 12 inches in length from rigid pipe. Provide no more than one poly flex
tube per sprinkler.
28. Pipe and Poly tubing shall be buried beneath the compacted soil. Mulch layers are not
acceptable bury material. Pipe and tubing shall be buried below the frost line and no
shallower than 12 inches beneath compacted soil.
29. Products of like nature shall be of the same manufacturer in the following categories:
a. Controllers
b. Weather stations
c. Valves
d. Sprinklers
e. Drain valves
f. Turf boxes, valve or meter boxes
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CPL09446 — Old Town Coppell
30. Provide irrigation water meter and backflow preventer in accordance with the City of
Coppell standard details 4166.
1.03 SUBMITTALS
A. Submittals shall be in accordance with the City of Coppell and shall include:
1. Manufacturer's product data for the following:
a. Controller(s)
b. Sprinkler heads and nozzles
c. Drip irrigation products, all products in the system.
d. Electric, manual and drain valves
e. Pipe and fittings
f. Wiring, watertight connectors, conduit, ground -fault circuit breakers, pull boxes.
g. Turf and valve vaults or boxes
h. Backflow preventors
i. Operation and Maintenance Manuals for all products.
j. Controller scheduling
B. Shop drawings include the following:
1. A scale drawing (minimum 1" = 20' -0 ") indicating:
a. Sprinkler heads with nozzle styles, arcs and radius
b. Controller location, type and weather station input data
1) Provide soil /plant type input data
c. Valve locations, with zone identification for electric globe valves
d. Pipe (and sleeve) locations with sizes, provide flow capacities in gallons per minute
(GPM) and velocities in feet per second (FPS) for all sprinkler pipe
e. Wiring routing, details of wet connections in valve boxes
f. Landscape features; e.g. trees, shrub and turfed areas, perennials and annual beds
g. All site features affecting the irrigation system; e.g. transformers, walks, drives,
structures, curbs, easements, utilities
h. The direction of true north, and the prevailing wind in miles per hour
C. As -built drawings shall be true, scaled drawings with every deviation from the shop drawings
legibly indicated, including all amendments, addendums and change orders. All pipe and
main components shall be exactly to scale or dimensioned from a fixed measuring point.
D. Provide a copy of the current TCEQ Irrigators License card for every person that will be on
site or designing, installing or supervising the installation with the shop drawings.
1.04 STANDARDS AND REFERENCES
A. REGULATORY REQUIREMENTS
1. Comply with the regulations, codes and ordinances of the Authority Having Jurisdiction.
2. All fees, permits and inspections shall be secured by and paid by the contractor.
3. Comply with the requirements of the Texas Administrative Code, Title 30. Part 1, Chapter
344, Subchapter D.
B. REFERENCES
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CPL09446 — Old Town Coppell
Materials and methods of the following referenced standards and specifications of the latest
edition form a part of this specification section as applicable.
1. Manufacturers Standardization Society of the Valves and Fittings Industry (MSS)
Standard:
2. American National Standards Institute (ANSI)
3. American Society for Testing and Materials (ASTM)
4. American Water Works Association (AWWA) Standards
1.05 DELIVERY AND STORAGE
Deliver manufactured products to the site in the original cartons or other protective coverings.
Products shall remain packaged until ready for installation. Store piping on wood runners above
grade. Keep ends of piping sealed until use and exercise caution during installation to keep dirt
and water out of the piping. Security and protection from the elements are the contractor's
responsibility.
1.06 JOB CONDITIONS
A. EXISTING UTILITIES: Verify, on the jobsite, the exact location of all existing underground
utilities before beginning construction. Contact the utility companies prior to excavation for
line locations and notification. Hand excavate trenches and valve box vaults near existing
utilities. Repair or pay for repairs to damaged utilities without cost to the Owner.
B. COORDINATION WITH LANDSCAPE INSTALLER: Coordinate the layout and final location
of piping, valves, sprinklers and drip tube with the civil, and landscape features of the project.
Install irrigation products to provide proper coverage of the landscape products for which they
are intended. Systems shall not be installed where irrigation water sprays across walks,
drives, walls, or other hardscape features.
C. SYSTEM LAYOUT: Layout the system prior to installation. Drive surveyor's flags or stakes in
the ground to indicate the location of the sprinkler heads. Stakes or flags with color -coded
tops shall be used to identify location of mains and risers. In the event that layout conflicts
with trees or other obstructions, adjust as necessary. Generally, the irrigation system is a
water conservation design which incorporates low precipitation rate sprinklers with matched
precipitation and integral pressure regulation for turf. Controller shall be coordinated with the
City of Coppell's Control Center and Weather station, flow sensors and a master valve.
1.07 GUARANTEES, OR WARRANTIES
A. Materials, equipment and workmanship furnished under this contract shall be guaranteed for
a period of one (1) year from the date of acceptance. The Installer is responsible to submit
warranty cards on the behalf of the Owner for products. Provide a copy of the warranty cards
submitted with a certification that the cards and warranties have been submitted.
B. The guaranty shall include but not be limited to the following:
1. Materials and workmanship of the irrigation system.
2. Compliance with the manufacturer's design and installation recommendations.
3. Filling and repairing depressions and replacing landscape plantings due to settlement of
irrigation trenches for one (1) year following acceptance of project.
C. Upon receipt of notice from the Owner or his authorized representative of failure of any part of
the guaranteed equipment, material or workmanship during the guaranty period, the affected
part or parts shall be replaced promptly with new parts, by and at the expense of the
contractor. The contractor shall acknowledge his responsibility under these guaranty
provisions by letter, stating that the equipment, materials and workmanship referred to herein
Landscape Irrigation 32 84 23 -5
CPLO9446 — Old Town Coppell
2
are guaranteed and stating the inclusive dates of the guaranty period, and contact information
for emergency repairs. The warranty period begins on the date of written acceptance of the
irrigation system by the Owner, or their representative.
D. All work under this contract shall not be finally accepted until expiration of the guaranty period.
During this period, the irrigation contractor is responsible for the work under warranty until
final acceptance.
2.00 PRODUCTS
2.01 PIPE AND FITTINGS
G1111111111110 _ s T
Pipe shall be permanently marked with the ASTM classification No., pipe size and
manufacturer's name.
B. PVC (POLYVINYL CHLORIDE) PIPE AND FITTINGS
1. SDR -PR (ASTM 2241) SDR2, Class 200 (Class 315 for 1/2" pipe) Type 1.
2. Fittings, and Schedule 40 PVC Pipe, (ASTM 1785) and (ASTM2466), solvent cement joint
(ASTM D2467). Threaded fittings, schedule 80 PVC (ASTM D2464).
3. Elastomeric- Gasket Joint: Pipe shall be to dimensional requirements of ASTM D 1785,
Schedule 40 with joints meeting the requirements of 150 psi working pressure, 200
hydrostatic test pressure, unless otherwise shown or specified, or it may be pipe
conforming to requirements of ASTM D 2241, elastomeric joint, with the following
applications:
SDR Maximum Working Minimum Hydrostatic
Pressure Pressure
21 120 160
17 150 200
13.5 200 266
C. Copper Tubing: ASTM Standard B88, type K, hard drawn. Fittings: ANSI /ASTM B32, solder
Grade 95 TA, or AWS A5.8, B cup silver braze.
D. Joints shall be made up using purple primer and clear solvent cement meeting the
requirements of ASTM D 2564; the joint assembly shall be made in accordance with ASTM D
2588 and manufacturers recommendations.
2.02 BACKFLOW PREVENTERS
Provide Backflow preventers in accordance with the AHJ requirements of the project;
manufacturers of acceptable products follow.
A. Double Check
1. Double check backflow preventer 2" and smaller: ANSI /ASSE 1015; complete unit of two
independently acting check valves, two ball valves, strainer and four test cocks, bronze or
iron body with bronze internal parts, 150 psi working pressure, and shall comply with
AWWA Standard C506.
Acceptable Manufacturers and Models:
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CPL09446 — Old Town Coppell
Cla -Val Co.
Watts
Hersey
Febco
Wilkins
2.03 VALVES
A. GATE VALVES
D -2 (1 -1/2" & smaller)
700 or 757 series
FDC
805Y
550
1. Gate valves 3" and less: MSS- SP -70, rated 175 lb. minimum water pressure, brass or
bronze construction screw -in bonnet, rising stem, solid wedge disc, threaded or soldered
connections. .
Acceptable Manufacturers and Models:
Crane
438, 1334
Nibco
T -III, S -III
ITT Grinnell
3010, 3010SJ
Milwaukee
148,149
B. BALL VALVES
1. Ball valves 2" and less: rated 175 lb. minimum water, oil, air and gas pressure, brass or
bronze construction, seat material as recommended by manufacturer for material
conveying, lever handle, threaded or soldered connections.
Acceptable manufacturers and Models:
Crane
9302, 9322
ITT Grinnell
3500, 3500SJ
Milwaukee
BA -200, BA -250
Watts
B -6000, B -6001
Nibco
T -580, & S -580
C. CONTROL VALVES (ZONE VALVES)
Control (zone) valves shall have heavy duty UV- resistant body cover with stainless steel
spring and hardware. Diaphragm shall be double beaded Sanoprene with heavy Buna N
seat to form an integral unit. Valve shall be packless, without sliding seals, and
completely serviceable without removing body from pipeline, with bolted (stainless steel
bolts) top. Design shall be "normally- closed ", requiring solenoid to be energized to open
valve, thereby causing automatic closure in event of power failure. Solenoid shall comply
with Class II National Electric Code and when operating require a maximum of 0.23
amperes, 3.0 watts at 24 volts A.C. Solenoid shall be integrally mounted in valve cover
and molded in epoxy to form a corrosion and moisture -proof unit with exposed metal
components of non - corrosive material. _Flow control shall be brass with O -ring seal and
adjustable from outside the valve for permanent throttling or complete closing of valve.
Valves shall be compatible to a two wire control system.
Acceptable Manufacturers and Models:
Plastic Valves less Flow Control:
a. Irritrol 200B
Plastic Valves, Flow Control (to be installed on drip zones)
b. Irritrol 200B with regulator, (OMR -30)
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CPL09446 — Old Town Coppell
2. Automatic Drain Valve: Machined brass with monel screens on both ends, and a five
ounce phosphor- bronze spring.
Acceptable Manufacturers and Models
Buckner 40,000
Champion DV
Weathermatic 910
A. EVAPOTRANSPIRATION (ET) BASED CONTROLLER
Controller shall be capable of calculating daily evapotranspiration values and able to
adjust the station run times commensurate with the landscaping requirements. ET Based
Controller systems shall communicate with owner's Central controller and utilize the
owner's existing weather station as a part of the package. Data from appropriate sensors
shall be used to calculate daily reference evapotranspiration (ET Daily ET which is
multiplied by an appropriate crop factor (K to provide an estimate of daily crop
evapotranspiration (ET — enabling the controller to predict the date of the next irrigation.
The required method to calculate ET is the Penman - Monteith approach which requires
weather stations to be fitted with measurement sensors for solar radiation, air
temperature (maximum and minimum), relative humidity, and wind speed.
Acceptable Manufacturers
2. Irrinet M — AC controller
B. SPRINKLERS, SPRAY NOZZLES AND QUICK COUPLERS
3. GENERAL
a. All sprinklers shall be provided with an integral pressure reducing device or shall
utilize a pressure reducing swing joint.
4. POP -UP ADJUSTABLE SPRAY ABS SPRINKLER HEADS
Body high impact ABS plastic with integral adjustable arc and radius nozzle. Pop -up a
minimum of 4 inches. Stainless steel retraction spring, removable filter screen.
Acceptable Manufacturer
Rainbird 8 Series MPR
5. BUBBLERS
Trickle pattern Pressure compensating full circle bubblers.
Acceptable Manufacturers and Models
Rainbird 1401
6. QUICK COUPLER VALVES (QCV)
One inch threaded inlet and 1" coupler outlet, all brass construction two piece unit
consisting of a coupler water seal valve assembly and a removable upper body to allow
spring and key track to be serviced without shutdown of main. Lockable vinyl lids with
spring for positive closure on key removal. Lid shall be purple in color or state "Not for
Drinking ".
Acceptable Manufacturers
West AG 4V144 Series for the Desoto project.
Rainbird 44 Series for the Desoto project.QUICK COUPLER KEYS
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CPL09446 — Old Town Coppell
One inch threaded inlet and %" threaded outlet, all brass construction with single stainless
steel lug.
Acceptable Manufacturers and Models
Hunter HK Series
West AG 4C100 Series
Rainbird 44K Series
7. QUICK COUPLER HOSE SWIVELS
'/" threaded inlet and %" threaded hose outlet, all brass construction.
Acceptable Manufacturers and Models
Hunter HS Series
West AG 4HS Series
Rainbird SH Series
8. SWING -JOINT RISER
PVC construction ASTM D2464 Type I double joint "O" ring and buttress threads at each
swivel joint, inlet/outlet socket threads ASTM D2467/D2464.
Acceptable Manufacturers
Hunter SJ Series.
Rainbird TSJ Series.
Spears 5800 series
9. POLYETHYLENE "CUT -OFF" RISERS
Polyethylene "cut -off' risers; 1/2" x 3 ", 1/2" x 6" or 3/4" x 3 ", 3/4" x 6" with 1/2" cut -offs.
Acceptable .Manufacturers
Toro
Hunter
Rainbird
B. POLYETHYLENE TUBING
Flexible in 20, 50 and 100 -foot coils, with adapters compatible to the tubing.
Acceptable Manufacturers and Models
Toro "Funny Pipe" Series 850 including fittings
Hunter HFT -100, including HSBE fittings
Rainbird "Swing Pipe ", Series SP -20, including fittings
Irritrol "Super Blue Flex Pipe ", EHD1295 -010 -D or EHF1295 -010 -D
C. DRIP SYSTEMS
1. Integral Dripperline Components:
2. The dripperline shall be Techline CV pressure compensating dripperline as manufactured
by Netafim Irrigation, Inc. Dripper flow rate and spacing shall be as recommended by the
manufacturer.
3. Line Flushing Valves: A manual flushing port(s) in the position that an automatic flush
valve would be positioned.
4. Pressure Regulator: A pressure regulator shall be installed at each zone valve or on the
main line to ensure operating pressures do not exceed system requirements. The
pressure regulator shall be a Netafim Pressure Regulator.
5. Manual Disc Filter: A disc filter shall be installed at each zone valve or on the main line to
ensure proper filtration. The filter shall be a Netafim Disc Filter.
D. HIGH -FLOW SHUT -OFF VALVE
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CPL09446 — Old Town Coppell
High -flow shut -off valve, 1/2" or 3/4 ", PVC with threaded inlet/outlet maximum 0.5 psig
operating pressure loss.
2.05 VALVE BOXES, BACKFLOW PREVENTER BOXES AND ENCLOSURES
A. PLASTIC BACKFLOW PREVENTER BOXES
1. Polyolefin and fibrous compound box with green lid, provide manufactured extension from
bottom of pipe as required. (ASTM D638, D790 - D695, D2240)
Acceptable Manufacturers
Ametek
Carson
Brooks
2. Structural foam, injection molded box. 15" x 21" x 12" with extensions as required.
Acceptable Manufacturers
Brooks Products
Ametek
B. VALVE BOXES
Injection molded foam or polyolefin enclosure, 6" diameter for 1" control valves, 10" diameter
for 1 -1/2" and above valves.
Acceptable Manufacturers
Brooks Products
Ametek
Carson
2.06 MISCELLANEOUS MATERIALS
A. LOCATION TAPE
Plastic, 2" inches wide with a foil liner for location by means of a magnetic locator, such as
"Terra - foil" Model D as manufactured by Griffolyn Company; Houston, Texas. Color shall be
blue, having lettering which reads "WATER LINE BELOW ". To be installed above main line.
B. WIRE CONNECTIONS
All wire connections to be installed in valve boxes only. Do not bury any splices without a
valve box. All wire connections shall be with proper size wire nut and sealed with 3M #DBY -6
Scotchcast kit. All wire splice kits must be UL approved. Wiring splice boxes shall be
identified on the shop drawings and as built drawings provided by the contractor.
C. DIRECT BURY, LOW VOLTAGE ELECTRICAL WIRE
Type OF 314 single stand copper with 4/64" inch thick PVC insulation, U.L. approved for direct
burial. Minimum wire shall be #14GA.
D. PEA GRAVEL
ASTM D 448, ASTM C 33, and M SHTO M43, minimum diameter of 1/8" and maximum of
3/4 ", mo more than 3% of pea gravel shall pass through a No. 3 sieve.
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CPL09446 — Old Town Coppell
3.00 EXECUTION
3.01 INSTALLATION
A. Installation of manufactured products shall be in strict compliance with the manufacturers
written standards and specifications. Two wire controls, central controller, shall all be installed
accordingly and shall have a written sign off by the approved manufacturer's representative
indicating that the system is installed per manufacturer's standards.
B. Trenching shall be such that pipe is buried below the frost line, or a minimum of 18" below
grade; over excavate 28" minimum for rock, and backfill with clean sand bed before laying
pipe. Lay pipe to allow for expansion and contraction. Backfill with compacted clean sandy
loam, and the remainder, rock -free excavation material and topsoil. Mechanically tamp trench
to 90% proctor to 2" above surrounding grade.
C. Excavation for backflow preventer shall be 18" minimum to the top of the backflow preventer.
Provide 12" of washed pea gravel beneath backflow preventer. Provide brick supports to hold
backflow preventer and valve box, rest brick on undisturbed soil. Valve box shall not rest on
pipe entering or exiting, provide 3" minimum clearance all around pipe. Valve box shall be
level with the surrounding grade.
D. Cut pipe clean with pipe cutters, remove burrs or foreign matter from pipe before assembly.
Apply purple primer to both the pipe and fitting and then apply compatible PVC cement to the
pipe. Home pipe to the fitting and hold in place for a minimum of 45 seconds until pipe has set
in place. Replace pipe and fittings which slide during this time, do not re -use fittings.
E. Install each electrical globe valve and series of wire splices in a separate turf box. Bury box
level with surrounding grade, install valves level and plumb.
F. Each branch sprinkler supply system shall be automatically drainable at the low point, with a
spring - loaded ball drip valve, designed for lawn sprinkler service, and draining into a 12"
excavation containing pea gravel. Dry well and gravel shall be provided by the Contractor. Top
of gravel shall be below valve at drain point.
G. Provide manual drain valves on main lines, with opening for drain into a 12" pea gravel sump.
Manual drain valves shall be in a valve box with the top flush with finished grade.
H. INSTALLATION OF SPRINKLERS AND RISERS
1. Install sprinkler heads flush with the finish grade elevation. On sloping sites, position the
heads to match the slope of the finish grade, otherwise set heads plumb. Sprinkler heads
shall follow a uniform pattern and individual head placement shall not vary more than 2"
from a straight line established by the other heads in either direction. 6" and 12" pop -ups
shall be set perpendicular to grade, equally aligned when in the operating position.
2. Make piping to individual sprinkler heads to allow adjustments in heights of heads and to
permit weights to be applied to the sprinkler without placing stress on the lateral piping.
This may be achieved by installing the sprinkler head on a flexible polyethylene riser, or
swing joints for QCV (quick couplers) or "funny pipe" with proper fittings.
3. Shrub risers shall be non - obtrusive, equally aligned, perpendicular to horizontal.
4. Electrical Wiring
a. Install a separate colored wire from the automatic controller to each solenoid valve. Run a
common neutral from the controller to each solenoid valve common wire shall be
continuous white color. Provide 12" expansion coils in each valve box.
Landscape Irrigation 32 84 23 -11
CPL09446 — Old Town Coppell
q
b. Make splices with 3M DBY or DBR -6 wire connection kits. Strip end of wire, twist
together, twist wire nuts in place and install into sealant container. All splices must be
installed in valve boxes.
c. Install wiring in trenches along side the piping. Provide a minimum of 12" inches of
coverage for wiring installed in separate trenches. Where several wires are installed in
close proximity to each other, bundle the wiring and tape securely at 10' foot intervals.
Wiring installed under driveways, parking lots or pavements, shall be in PVC sleeves.
d. Refer Section 26 05 26 GROUNDING & BONDING FOR ELECTRICAL SYSTEMS for
installation of grounding system. Install a valve box over all ground rods to allow for
testing.
e. Measure the ground grid resistance with the earth test meggar and install additional
ground rods and conductors as required until the resistance to the ground conforms to the
requirements of the irrigation control manufacturer.
5. Installation of the Irrigation Controller: Hard wire 120 VAC wires into control box. Weather
proof all exterior connections. All wiring above ground to be installed in conduit. Mount
controller 48" AFG. Mount freeze and rain sensors per manufacturer's recommendations. All
120 VAC wiring shall be installed by a licensed electrical contractor per Div. 26 specifications.
3.02 DRIPPERLINE INSTALLATION:
A. Install all dripperline as recommended by the manufacturer. Use only Teflon tape on all threaded
connections.
B. Clamp Techline /Techlite fittings with Oetiker clamps when operating pressure exceeds specific
dripperline fitting requirements.
C. Cap or plug all openings as soon as lines have been installed to prevent the intrusion of materials
that would. obstruct the pipe. Leave in place until removal is necessary for completion of
installation.
3.03 FLUSHING AND TESTING
A. FLUSHING .
After sprinkler piping is in place, prior to installing heads, flush out lines by running water through
the piping to remove debris and extraneous matter. Cemented joints shall be set and cured for 12
hours prior to beginning tests.
1.101#2 ZL , ► § el,'a�N[ilZI
1. Before piping is pressure tested, sufficient backfill shall be installed around the piping to
contain the piping under pressure. Tests shall be made in the presence of the Engineer. The
entire piping system shall be placed under full pressure and left for 24 hours with pressure
gauge attached, then pipe joints shall be examined for leaks. Cut out and remake any
defective joint and re -test until the system performs without leaks or loss of pressure in
excess of 5 %.
2. Place the system into operation and test each section individually. Examine the operation of
spray heads, and during a time when wind velocity is normal, observe the pattern of water
produced by the heads. The complete system shall give full and adequate coverage to the
area being watered.
C. ADJUSTMENTS
1. Check each sprinkler head for proper operation and spray pattern.
2. Adjust pressure on adjustable pressure valves by attaching a pressure gauge assembly to the
solenoid valve pressure regulator, and adjust pressure as necessary.
3: Adjust all components so that water runoff and overspray is reduced.
4. The irrigation contractor shall personally notify the Architect or Engineer, Owners
representative and general contractor at least 72 hours in advance of all final testing and
Landscape Irrigation
CPL09446 — Old Town Coppell
32 84 23 -12
inspections. The system will be tested, pressurized and adjusted by the irrigation contractor
before calling for final testing and inspection. The system will not be considered complete
without certification by the Engineer.
5. At time of final inspection, all hydrostatic tests must have been satisfactorily completed. The
entire system shall then be operated in the presence of the engineer's authorized
representative, and must operate in a satisfactory manner, with uniform coverage of the areas
which are to be sprinkled.
6. All conditions of the contract documents shall be met before calling for final testing. All costs
for re- testing due to failure to meet these conditions will be borne by the irrigation contractor
including time and materials of the required inspection team.
3.04 MAINTENANCE
In addition to the installation of the irrigation system, furnish a period of maintenance for the system
equal to the warranty period. Maintenance will consist of the following:
A. After the lawn has been established and grass achieved a good stand, return to the site and
adjust height of sprinkler heads to conform to grass height.
B. Clean and adjust heads two separate times 3 months apart the first year.
C. After 11 months, return to site and adjust height of risers to conform to plant growth.
3.05 IRRIGATION WATER SCHEDULES
A. ET based controllers shall be programmed to automatically operate within the window of
opportunity provided by the owner, and automatically function in accordance with the
manufacturer's instructions. Contractor shall have manufacture representative inspect
programming.
3.06 OWNER TRAINING
A. Prior to final acceptance, contractor shall provide a minimum of 4 hours or as long as required by
the Owner to demonstrate to the Owner the proper operation of all irrigation system equipment
and controls provided under this section.
B. After completion of the demonstration, submit to the Architect/Engineer a Demonstration
Certificate of Completion" signed by the Owner and the Contractor indicating that the
demonstration of the irrigation system equipment and controls has been completed.
END OF SECTION
Landscape Irrigation
CPL09446 — Old Town Coppell
32 84 23 -13
y
32 90 00 LANDSCAPE PLANTING
1.00 GENERAL
1.01 WORK INCLUDED
A. Furnish labor, materials, equipment and incidentals necessary (including topsoil, soil testing,
soil sterilant, soil amendments, mulch, fertilizer, stakes, trees, shrubs, groundcover, turf sod,
and root/water barrier) to complete all landscape planting as specified herein.
1.02 QUALITY ASSURANCE
A. PLANT LISTS
Furnish planting as specified according to the Plant List on the drawings. Plants shall
conform to the varieties specified, with no substitutions allowed unless approved in writing in
advance by the Landscape Architect whose seal appears on the construction documents
(hereinafter referred to as "Landscape Architect ").
B. NOMENCLATURE
The scientific, as well as, common names listed in the schedule are the standardized plant
names authorized by the American Joint Committee on Horticulture Nomenclature. In the
event of any question concerning plant type, notify the Landscape Architect before any
planting operations, other than preparing the planting beds.
1.03 SUBMITTALS
Submittals provided to Landscape Architect by Contractor shall include:
A. Written confirmation from both Contractor and Landscape Planting Subcontractor of their (i)
possession of all contract document planting drawings and specifications for the project and
(ii) acceptance of all requirements contained in those plans and specifications. This written
confirmation shall be signed by authorized representatives of both Contractor and Landscape
Planting Subcontractor and shall include printed or typed names and titles as well as notorized
signatures of the authorized representatives.
B. Detailed plant list (including common and botanical names, quantities, root types, sizes, trunk
diameter, height, and spread, shape uniformity, and source).
C. List of all non -plant material products to be used on the project (per Section 2.00 Products
below) including sources.
D. Proposed schedule for all landscape planting activities, including but not limited to proposed
dates of: landscape pre- construction meeting; order of plant material; delivery of plant
material; irrigation system installation,. testing, and completion in all landscape planting areas;
soil preparation; planting, staking, mulching, and fertilization; proposed final inspection; and
guarantee period.
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CPL09446 — Old Town Coppell Infrastructure Improvements
1.04 STANDARDS
The following documents, used as standards, are to be considered a part of these specifications
by reference:
A. American Joint Committee on Horticultural Nomenclature
B. "Standardized Plant Names ", Second. Edition, 1942
C. "American Standard for Nursery Stock"
1.05 DELIVERY AND STORAGE
A. Notify Owner five (5) business days in advance of delivery date. Unload and display plants
and trees at a location on project site as directed by Owner. A suitable method of handling
plants must be employed to insure the careful, workmanlike delivery of plants.
B. All delivered plants shall be identified with a legible waterproof label bearing common and
botanical plant name securely attached to each plant. Plants not in conformance with
requirements of the drawings and specifications shall be promptly removed from the site and
replaced with plants which do meet requirements. Plant identification labels shall not be
removed until after final inspection by as described in Section 3.10 below.
1.06 JOB CONDITIONS
A. Plants shall conform to the criteria specified (including common name, botanical genus and
specie names, root type, size, and other characteristics noted) in the Plant List on the
drawings. Plants shall have been grown under climatic conditions similar to those in the
locality of the project site, unless otherwise approved in writing in advance by the Landscape
Architect. Plants shall not be pruned prior to delivery to the site.
B. Plants shall be selected for health and appearance and shall be well- matured, well- shaped,
well - leafed, and be generally symmetrical in appearance from all directions. Trees shall be
single trunk (unless listed as multi -trunk in the Plant List on the drawings) with straight trunks
and a balance of well - leafed branches on each side of the main trunk.
C. Plants and trees shall be handled so that the trunks, branches, foliage, and roots are
protected at all times.
D. Plants which have been grown in greenhouses, under lath, or in other protected environments
shall be hardened off and acclimated to site conditions prior to delivery to site.
E. Plants which cannot be immediately planted will be left in original containers and watered
regularly until time of planting.
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CPL09446 — Old Town Coppell Infrastructure Improvements
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x
1.07 GUARANTEES
Plantings shall be guaranteed for one (1) full growing season following completion and
acceptance of the entirety of the landscape planting under this contract. At the end of the
guarantee period, any trees or plants which are determined by the Owner to be dead or not in
vigorous healthy growing condition shall be replaced by the Contractor at no cost to Owner.
Replacement plantings and materials shall meet all requirements of the contract documents,
including one -year guarantee from time of planting of the replacement.
2.00 PRODUCTS
2.01 MATERIALS
A. TOPSOIL: Existing topsoil removed by excavation under this contract may be stripped,
stockpiled, and re -used in new work with the following exception: Existing rocky soil, gravel,
clay, shale, or subsoil shall NOT be re -used as topsoil. Additional topsoil, if necessary, shall
be from a source approved by the Landscape Architect and shall be free of weeds (including
nutgrass), trash, debris, roots, sticks, rocks, gravel, clay, shale, and subsoil.
B. SOIL STERILANT: Contractor preferred product (used in strict accordance with the
manufacturer's instructions and all applicable codes and regulations).
C. LIME: Agricultural lime conforming to ASTM C602, Class "T ".
D. PEAT MOSS: Horticulture grade Canadian stock, fibrous type, low in wood content, having a
moisture content of not more than 30 %.
E. MULCH: Horticultural grade finely- ground hardwood mulch, free of sticks, stones, clay or
other foreign materials; 3/4" to 1" graded size, of such character as not be easily displaced by
wind.
TURF SOD: Turf sod shall be healthy, vigorous, freshly dug from living turf, and free of
weeds. Sod shall be obtained from state certified commercial growers.
Thickness of soil portion of the sod shall be a minimum of one (1) inch and a maximum of one
and a half (1 %2 ) inches. Sod pieces shall be either strips measuring 18" width x 72" length or
squares measuring 36" x 36' unless otherwise approved in writing in advance by Landscape
Architect prior to delivery to the project site.
Sod shall be delivered on project site within twenty -four (24) hours of cutting /digging. Sod
shall be planted within forty -eight (48) hours of cutting /digging. The soil portion of the sod
shall be slightly moist (neither excessively wet nor excessively dry) when harvested. The soil
portion of the sod shall be kept slightly moist until time of planting.
G. PLANTS: Plants (shade trees, multi- trunk /specialty /palm trees, shrubs, and groundcovers)
shall conform to the Plant List in the Drawings, shall be container - grown, and shall not have
been re- potted within ninety (90) days prior to delivery to the project site.
H. TREES STAKES: Six (6) foot length steel fence 'T' posts neatly field - painted with two (2)
coats of rust - resistant oil -based enamel paint, color dark bronze.
I. WIRE: No. 10 gauge galvanized steel tie wire.
J. HOSE: Two -ply garden hose, 3/4" diameter, solid -color black.
Landscape Planting 32 90 00 -3
CPL09446 — Old Town Coppell Infrastructure Improvements
m
K. COMMERCIAL FERTILIZER: Fertilizers shall: (i) conform to all applicable state fertilizer laws
(ii) be delivered in original, unopened containers, and (iii) be uniform in composition, dry, and
free flowing. A complete, time - release- coated, granule -type fertilizer with an equal Nitrogen -
Phosphorus- Potassium analysis shall be submitted for approval by the Landscape Architect
prior to any use on the project.
ROOT /WATER BARRIER: 36 -inch depth dual purpose root and water barrier, Century
Products USA model CR -PE 3 -20 or equivalent as approved in writing by Owner.
2.02 PLANTING SOIL MIXTURE
A. Planting soil mixture for backfilling in excavations around all plantings shall be premixed on
grade before shoveling into the planting pit. Planting soil backfill mixture shall consist of four
(4) parts specified topsoil and one (1) part specified mulch, thoroughly mixed.
3.00 EXECUTION
3.01 TOPSOIL PREPARATION AND AMENDMENT
A. TOPSOIL DEPTH
Minimum topsoil depth in all planting areas shall be established as follows:
Shrub /Ornamental Beds: A minimum depth of nine (9) inches of topsoil, measured
from finish grade on the Grading Plan in the drawings, shall exist or be established
in all shrub /ornamental grass bed areas as indicated in the Drawings.
2. Turf Areas: A minimum depth of five (5) inches of topsoil, measured from finish
grade indicated on the Grading Plan in the drawings, shall exist or be established in
all turf areas as indicated in the Drawings.
B. SOIL PREPARATION
Scarification of all planting areas shall be performed prior to planting.
1. Shrub /Ornamental Beds: A minimum depth of twelve (12) inches of thorough
scarification, measured from finish grade , indicated on the Grading Plan in the
Drawings, by means of plowing and disc harrowing, or in small areas by rototilling,
shall be provided. Remove all weeds (including nutgrass), .trash, debris, roots,
sticks, rocks, gravel, clay, shale, and subsoil. Level soil by means of steel matt
drags, tiller rakes, and hand raking as required to (i) eliminate bumps, ridges and
depressions, and (ii) establish finish grade. All finish grades of shrub /ornamental
grass bed soil shall conform to finish grades specified in the Grading Plan in the
drawings.
2. Turf Areas: A minimum depth of eight (8) inches of thorough scarification,
measured from finish grade indicated on the Grading Plan in the Drawings, by
means of plowing and disc harrowing, or in small areas by rototilling, shall be
provided. Remove all weeds (including nutgrass), trash, debris, roots, sticks, rocks,
gravel, clay, shale, and subsoil. Level soil by means of steel matt drags, tiller
rakes, and hand raking as required to (i) eliminate bumps, ridges and depressions,
and (ii) establish finish grade. All finish grades of turf area soil shall conform to
finish grades specified in the Grading Plan in the drawings.
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CPL09446 — Old Town Coppell Infrastructure Improvements
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r
a
C. LIME ADDITION
Test the scarified topsoil for pH in a minimum of twenty -four (24) evenly distributed locations
representative of all planting area across the project site. For all planting areas with topsoil
pH between 4.0 and 5.0, add 90 -140 pounds of lime per 1,000 square feet. For all planting
areas with topsoil pH of 5.1 to 6.0, add 40 to 90 pounds per 1000 square feet. Lime shall be
thoroughly mixed into the minimum full depth of required topsoil for all areas.
D. PEAT MOSS ADDITION
Add peat moss at the rate of one hundred fifty (150) pounds per one thousand (1,000) square
feet in all turf areas. Add peat moss at the rate of two hundred fifty (250) pounds per one
thousand (1,000) square feet in all shrub /ornamental grass bed areas. Peat moss shall be
thoroughly mixed into the minimum full depth of required topsoil for all areas.
E. SOIL STERILIZATION
Following scarification and amendment mix -in, topsoil in all planting areas shall be sterilized
using soil sterilant (herbicide) in strict accordance with the. manufacturer's written directions.
Contractor shall protect all existing trees to remain and other adjacent vegetation from any
harm or damage from sterilant application. Contractor shall allow treated planting areas to sit
undisturbed per manufacturer's recommended time period prior to installation of plants and
turf and prior to performing any other planting operations.
3.02 TIME OF PLANTING
A. Planting shall be done only during periods within the seasons which are normal for the
planting type as determined by weather conditions and the accepted practice in the project
locality with the following exception: No planting shall occur during or within three (3) days of
temperatures above 95 degrees Fahrenheit or below 35 degrees Fahrenheit.
B. The preparation of planting areas may begin prior to time of planting provided finish grading
has been completed. Finish grades shall be protected from landscape planting construction
traffic (including protection from soil compaction).
3.03 PLANTING, GENERAL
A. The location for all plantings is noted on the drawings at the scale indicated on each drawing.
No deviations from the planting locations shown on the drawings are permitted unless
approved in writing in advance by the Landscape Architect.
B. In preparing plant excavations, remove all rocks or underground obstructions to a depth
necessary, and completely clear of root ball and backfill zones, to permit proper planting.
Planting pits shall be generally circular in outline with heavily scarified vertical sides and flat
(slightly dish - shaped) bottoms.
C. Depth of planting pits shall be equal to the height of the root ball plus four (4) inches. This is
to provide for: (i) six (6) inches of firmed planting soil mixture under the root ball and (ii) two
(2) inches of root ball top above adjacent finish grade.
D. Diameter of planting pits shall be dug twice the diameter of the root ball.
Landscape Planting 1 32 90 00 -5
CPL09446 — Old Town Coppell Infrastructure Improvements
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3.04 PLANTING SOIL MIXTURE
A. Planting soil shall be shoveled into the pit around the plant balls in six (6) inch dry layers and
firmly dry- tamped by foot before the next layer is added.
3.05 TREE PLANTING
A. For trees located in shrub /ornamental grass beds, prepare excavation as described above
and on details on the drawings. Set root ball in center of pit on prepared planting soil and
complete backfilling in six (6) inch dry layers. All finish grades of soil shall conform to finish
grades specified in the Grading Plan in the drawings. Slowly saturate the planting pit and
adjacent area two (2) times within in the first four (4) hours immediately following planting
using potable water.
B. For trees located in turf, prepare excavation as described above and on details on the
drawings. Set root ball in center of pit on prepared planting soil and complete backfilling in six
(6) inch dry layers: All finish grades of soil shall conform to finish grades specified in the
Grading Plan in the drawings. Construct a circular earthen saucer four (4) inches high
(measured above adjacent finish grade) and sixteen (16) inches wide immediately outside
edge of planting pit. Slowly saturate the planting pit and area inside the saucer two (2) times
within in the first four (4) hours immediately following planting using potable water.
C. After watering, apply additional planting soil mixture, if needed, to fill settled planting pit
backfill to assure conformance with details on the drawings. Apply top layer of mulch in
accordance with the details on the drawings.
D. After planting, where necessary, prune in accordance with the details on the drawings.
Maintain uniform overall shape of tree.
3.06 SHRUB AND GROUNDCOVER PLANTING
A. Prepare excavation as described above and on details on the drawings. Set root ball in
center of pit on prepared planting soil and complete backfilling in six (6) inch dry layers. All
finish grades of soil shall conform to finish grades specified in the Grading Plan in the
drawings. Slowly saturate the planting pit and adjacent area two (2) times within in the first
four (4) hours immediately following planting using potable water.
B. After watering, apply additional planting soil mixture, if needed, to fill settled planting pit
backfill to assure conformance with the details on the drawings. Apply top layer of mulch in
accordance with the details on the drawings.
C. After planting, where necessary, prune in accordance with the details on the drawings.
Maintain uniform overall shape of plant.
3.07 SODDING
Grass shall be planted by sodding. Lay sod within 24 hours of stripping. Fill in any gaps between
sod pieces with hand - tamped topsoil and water in.
3.08 FERTILIZER APPLICATION
Fertilizer shall, upon completion of planting, be applied to all plantings (trees, shrubs, ornamental
grasses, and turf) at the rate specified by the manufacturer for each type of planting.
Landscape Planting 32 90 00 -6
CPL09446 — Old Town Coppell Infrastructure Improvements
3.09 MAINTENANCE
A. Maintain all landscape areas, plants, and turf during all stages of landscape construction and
a minimum of 60 days after planting operations have been completed, regardless of the date
of Owner's acceptance of the project. Plants and turf shall be watered regularly, as required
to provide vigorous and healthy growth, by Contractor during construction and maintenance
period. The Contractor shall at no time during landscape construction and maintenance
period allow visible weed growth, insect infestation, accumulation of any trash or construction
debris, or other unsightly conditions in any landscape areas.
B. Turf shall be kept in a healthy growing condition by watering, weeding patching, rolling,
mowing, trimming, edging, and any other necessary maintenance operations. At the end of
the maintenance period, all turf areas shall be solid weed -free lawns. Patch /replant as
frequently as necessary to produce a solid stand of grass over the entire lawn area. Protect
grass from weed or insect infestation, traffic, or washing.
3.10 FIELD QUALITY CONTROL
At the completion of the maintenance period, the Owner and Landscape Architect shall make a
final inspection of all planting areas (trees, shrubs, grasses, groundcovers, and turf). Any
plantings determined by the Owner or Landscape Architect not to be in a vigorous healthy growing
condition at this time shall be replaced at no charge to the Owner. Any and all such replacements
shall be guaranteed in accordance with Section 1.07 of the Specifications.
3.11 CLEAN AND ADJUST
All empty material containers and bags, unusable materials, trash, and other debris must be
removed daily and the project site kept neat and clean at all times. Any and all excess excavated
topsoil and /or subsoil shall be promptly removed from the project site. After planting operations
are finished, paved areas which may have become strewn with soil or other material shall be
thoroughly cleaned by sweeping and washing, if necessary, to provide a neat and clean project
site.
END OF SECTION
Landscape Planting 32 90 00 -7
CPL09446 — Old Town Coppell Infrastructure Improvements
z
02402 CARE OF WATER DURING CONSTRUCTION
1.00 GENERAL
1.01 WORK INCLUDED
Furnish labor, materials, equipment and incidentals necessary to operate pumps, piping and other
facilities to assist in the removal of surface water and ground water, and provide protection from
flood waters. Build and'maintain the necessary temporary impounding works, channels, and
diversions. Remove the temporary works, equipment, and materials after completion in strict
accordance with this section of the specifications and the applicable drawings.
1.02 QUALITY ASSURANCE
1.03 SUBMITTALS
Submittals shall be in accordance with Section 4, SHOP DRAWINGS, PRODUCT DATA, AND
SAMPLES and shall include:
A. Plans and procedures for handling flood flows and dewatering excavations. A separate plan
shall be required for the bridge and the culverts. Modifications to.these plans shall be
submitted for approval by the Engineer.
Approval of submittals does not relieve the Contractor of full responsibility and liability for care of
water during construction.
1.04 STANDARDS [Not Used]
1.05 DELIVERY AND STORAGE [Not Used]
1.06 JOB CONDITIONS [Not Used]
1.07 OPTIONS [Not Used]
1.08 GUARANTEES [Not Used]
2.00 PRODUCTS [NOT USED]
3.00 EXECUTION
3.01 PREPARATION [Not Used]
3.02 FLOOD FLOWS AND OTHER WATER
The Contractor is responsible for handling and diverting any flood flows, stream flows, or any
other water, including groundwater encountered during the progress of the work. Build, maintain,
and operate cofferdams, channels, flumes, sumps, and other temporary works as needed to pass
floodwater or divert stream flow or pass other surface water through or around the construction
site and away from construction work while it is in progress. Unless otherwise approved by the
Owner, a diversion must discharge into the same natural watercourse in which its headworks are
located. Construct permanent work in areas free from water. Full responsibility for the successful
dewatering of the work areas rests with the Contractor. Remove protective works, after they have
served their purpose, in a manner satisfactory to the Owner or his representative.
3.03 DEWATERING EXCAVATED AND OTHER FOUNDATION AREAS
Care of Water During Construction
CPL03243
02402 -1
A. The Contractor is responsible for dewatering foundations for all areas during construction of
the works of improvement, including areas of required backfills. Lower the water table as
needed to keep work areas free of standing water or excessive muddy conditions as needed
for proper performance of the construction work. Furnish, prepare, and maintain drains,
sumps, casings, well points, and other equipment needed to dewater areas for required
construction work. Any dewatering method that causes a loss of fines from foundation areas
shall not be permitted. Keep available standby equipment to assure the proper and
continuous operation of the dewatering system. Provide continuous monitoring (24 hours per
day) of the dewatering system to assure continuous operation.
3.04 CLOSURE OF STREAM
A. Leave an opening to pass any such floods as may occur during construction. The bottom
elevation of the opening shall be as indicated or that of the natural creek channel.
3.05 FIELD QUALITY CONTROL [Not Used]
3.06 CLEAN AND ADJUST [Not Used]
3.07 SCHEDULES [Not Used]
END OF SECTION
Care of Water During Construction
CPL03243
02402 -2