certificates shall include the guaranteed percentages of purity, weed content,
and germination of the seed, and also the net weight and date of shipment. No
seed may be sown until CONTRACTOR has submitted the certificates to
ENGINEER.
Mulch shall be specially processed cellulose fiber containing no growth or
germination inhibiting factors. It shall be manufactured in such a manner that
after agitation in slurry tanks with water, the fibers in the material become
uniformly suspended to form a homogenous slurry. When sprayed on the
ground, the material shall allow absorption and percolation of moisture.
Fertilizer, seed, and lime shall be furnished in new, clean, sealed, and properly
labeled bags, with the following information clearly marked:
1. Manufacturer name
2. Type
3. Weight
4. Guaranteed analysis
PART 3 - EXECUTION
3.1 APPLICATION
A.
D.
Unless otherwise shown on the Drawings, topsoil shall be placed to a minimum
thickness of 4 inches.
For all areas to be seeded:
1. Lime and fertilizer shall be applied uniformly over the area at the rate
noted on the Drawings. Modifications to the application rate and/or
fertilizer type may be made based on recommendations from the State
Cooperative Extension based on topsoil testing.
2. Seed shall be applied uniformly over the area at the rate noted on the
Drawings.
The application of fertilizer and lime shall be performed hydraulically in one
operation with hydroseeding. CONTRACTOR will be responsible for cleaning
all structures and paved areas of unwanted deposits.
The application of mulch is to be by pneumatic blower.
3.2 INSTALLATION
A.
The subgrade of all areas to be covered with topsoil and seeded shall be raked
and all rubbish, sticks, roots and stones larger than 3 inches shall be removed.
Subgrade surfaces in all areas shall be tracked immediately after fine grading
and raking has been completed. Tracking is to be performed with bulldozers
operating in the direction of water flow. The tracks of the bulldozers are to
have grousers of sufficient height to leave visible depressions in the subgrade.
The depressions are to be perpendicular to the direction of water flow to
reduce erosion potential until topsoil is placed. During the tracking, all
depressions caused by settlement or tracking shall be filled with additional
File No. 3066.096 Topsoil, Hydroseeding, and Turf Establishment 02830 - 2 of 4 December 2017
