[2] [_____] inch soil cover is required over the top [surface] [edge]. A
minimum [450] [_____] mm [18] [_____] inch extension of fabric beyond the
structure area to be protected is required to prevent root growth from
growing around fabric edges.] [Install [cylindrical] [linear]
polypropylene barrier a minimum [12.70] [25] [_____] mm [1/2] [one] [_____]
inch above finish grade to prevent root growth over the barrier. Backfill
the outside of the barrier with 19 to 25 mm 3/4 to one gravel a minimum
width of [50] [_____] [2] [_____] inches. For linear barrier application
use appropriate device to connect two pieces.]
][3.2.4
Subsoil Drainage for Plant Pits and Beds
**************************************************************************
NOTE: Drawings shall indicate areas where subsoil
drainage will be required to provide for adequate
drainage of areas to be planted.
**************************************************************************
**************************************************************************
NOTE: If Section 02630 is utilized, delete
requirements for Subsoil Drainage for Plant Pits and
Beds.
**************************************************************************
Provide as indicated. [Lay perforated drain pipe with perforations down.]
Backfill trenches as specified in Section [02300 EARTHWORK][02315N
EXCAVATION AND FILL].
]3.3
PLANT BED PREPARATION
Verify location of underground utilities prior to excavation. Protect
existing adjacent turf before excavations are made. Where planting beds
occur in existing turf areas, remove turf to a depth that will ensure
removal of entire root system. Measure depth of plant pits from finished
grade. Depth of plant pit excavation shall be as indicated and provide
proper relation between top of root ball and finished grade. Install plant
material as specified in paragraph entitled "Plant Installation." Do not
install trees within 10 feet of any utility lines or building walls.
3.4
PLANT INSTALLATION
3.4.1
Individual Plant Pit Excavation
Excavate pits at least [twice as large][[400] [_____] mm[16] [_____] inches
larger] in diameter as the size of ball or container to depth shown.
3.4.2
Plant Beds with Multiple Plants
Excavate plant beds continuously throughout entire bed as outlined to depth
shown.
3.4.3
Handling and Setting
Move plant materials only by supporting the [root ball] [container]. [Set
plants on hand compacted layer of prepared backfill soil mixture [150]
[_____] mm [6] [_____] inches thick][Set plants on native soil] and hold
plumb in the center of the pit until soil has been tamped firmly around
root ball. Set plant materials, in relation to surrounding finish grade, [
[25 to 50] [_____ to _____] mm[one to 2] [_____ to _____] inches above]
SECTION 02930
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