firming action will reduce the desirable percentages
of air and water spaces in good growing topsoil.
**************************************************************************
Immediately after seeding, firm entire area except for slopes in excess of
3 to 1 with a roller not exceeding [134] [_____] kg per m [90] [_____]
pounds for each foot of roller width. [If seeding is performed with
cultipacker-type seeder or by hydroseeding, rolling may be eliminated.]
]3.2.5
Erosion Control Material
**************************************************************************
NOTE: Specify erosion control where water
concentrates and flows across areas at velocities
which create an erosion hazard. Allow Contractor
option for type of erosion control material, unless
project specific requirements dictate otherwise.
**************************************************************************
Install in accordance with manufacturer's instructions, where indicated or
as directed by the Contracting Officer.
3.2.6
Watering
Start watering areas seeded as required by temperature and wind conditions.
Apply water at a rate sufficient to insure thorough wetting of soil to a
depth of [50] [_____] mm [2] [_____] inches without run off. During the
germination process, seed is to be kept actively growing and not allowed to
dry out.
3.3
PROTECTION OF TURF AREAS
Immediately after turfing, protect area against traffic and other use.
[3.4
RENOVATION OF EXISTING TURF AREA
[3.4.1
Aeration
Upon completion of weed eradication operations and Contracting Officer's
approval to proceed, aerate turf areas indicated , by approved device.
Core, by pulling soil plugs, to a minimum depth of [_____] mm [_____] inches.
[Leave all soil plugs, that are produced, in the turf area.] [Remove all
debris generated during this operation off site.] [After aeration
operations are complete, topdress entire area [6.35 mm1/4 inch] [12.70 mm
1/2 inch] depth with the following mixture:
[[_____]
percent
sand]
[[_____]
percent
humus]
[[_____]
percent
gypsum]
[[_____]
percent
organic fertilizer]
[[_____]
percent
synthetic fertilizer]
Blend all parts of topdressing mixture to a uniform consistency
throughout.] Keep clean at all times at least one paved pedestrian access
route and one paved vehicular access route to each building. Clean all soil
plugs off of other paving when work is complete.
SECTION 02921
Page 17
Previous Page
