Laserfiche WebLink
<br /> <br />' The seed mixture will be broadcast on the site within a week or two <br />' oP the completion of grading or soil placement. Experience has shown <br />that delaying beyond that period of time results in a reduced initial <br />' growth. Because it is expected the grading and soil placement will occur <br />during the fall and winter months, the seeding will be done in the fall or <br />winter. <br />1 <br />The slopes to be seeded are north facing. Therefore, the us~a of <br />' mulch would not only be unnecessary but undesirable. A mulch encour,iges <br />the accumulation of moisture in the soil which, 1P excessive, can induce <br />' slumping. This was a very significant problem on the Vail Pass highway <br />project where straw mulch was covered with jute net. This treatment on <br />' Vail Pass even Induced some degree of slumping on south facing slopes. <br />Of course, here the moisture received is far less than is the case on Vail <br />Pass, but the retention of moisture can still be significant and induce <br />instability In the slope if mulch is used and the winter and spring are <br />unusually wet. <br />' The mixture shown above is similar in many respects to the mixture <br />I' that was applied to the steep, north-Pacing road cuts along the Piket•lew <br />Quarry Road. That seeding has been highly successful even though the <br />' parent material was the growth medium (no soil was used). <br />The second stage of the revegetation will be the replanting of trees <br />' on the slopes. The original vegetation of the slope was composed larl;ely <br />of trees. Tree planting will be done using Colorado State Forest Service <br />' containerized trees and planting will occur at the rate of about 125 trees <br />per acre in a roughly randomized pattern. Species to be used will be <br />' Douglas Fir and Ponderosa Pine. Although Phan Pine might be <br />appropriate in some respects, it is felt the north facing aspect would be <br />marginal for Pinon Pine In wet years, but suitable Por Douglas Fir and <br />' Ponderosa Plne In most years. The forest above the road is composed oP <br />1 <br /> <br />~~ <br />17 <br />1 <br />