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REV100941
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REV100941
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Entry Properties
Last modified
8/25/2016 1:11:26 AM
Creation date
11/22/2007 12:41:16 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1978327
IBM Index Class Name
Revision
Doc Date
6/16/1988
Doc Name
RECOMMENDATIONS MLR GRAVEL PIT
From
SOIL CONSERVATION SERVICE
To
CONSTRUCTION MANAGEMENT CONSULTANTS
Type & Sequence
AM1
Media Type
D
Archive
No
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<br />To provide the greatest benefit for wildlife, irregular shorelines <br />with inlets and points will maintain the most upland vegetation. One <br />to several small islands located at least 50 feet from share would <br />also help with waterfowl nesting and rest areas. Any of the islands <br />need to be protected at the waterline by riprap on the upwind side and <br />should be covered with a permanent short grass cover. To provide the <br />best combination of open water to riparian type vegetation, the ratio <br />of deep water to shallow water areas should be about 50:50. The pond <br />shorelines can be seeded with a grass legume mix including reed <br />canary9rass, bluegrass, switch9rass, wheatgrass (either western or <br />slender, or both), and alsike clover or alfalfa. These plants will <br />tolerate a water table and some can establish to the waters edge. <br />Upland slopes should be graded to 3:1 or flatter and smoothed to near <br />normal contours. Pond embankment slopes should also be 3:1 or flatter <br />and vegetated to the waterline to prevent soil slumping. The shallow <br />water areas should have slopes 4:1 or flatter. Nesting platforms can <br />help enhance the benefits to wildlife. <br />Clump plantings of shrubs and trees can be scattered throughout the <br />unit. Clumps need to consist of at least 5 to 15 shrubs, planted on <br />about 4 foot centers. Trees can be planted in groups of 1 to 6, on 8 <br />to 15 foot centers depending on species. Shrub species beneficial to <br />wildlife include skunkbush, honeysuckle, caragena, and rugosa rose. <br />Trees species could include cottonwood, Russian olive, and willow. On <br />drier portions of the area pines, spruce, and hardwoods could also be <br />grown. Consult the Colorado State Forest Service for species that do <br />well on wetter sites. <br />Cattails, willows, sedges, and rushes will invade the site and provide <br />excellent wildlife habitat. The shallow water areas and sloping <br />shorelines will support this type of riparian vegetation. <br />Topsoil should be stockpiled for reclamation work. The stockpiles <br />need to be protected from wind and water erosion. Broadcast the <br />upland seeding mix at double the recommended seeding rate. Rake the <br />seed into the ground and mulch with a weed free long stem native grass <br />hay. The seeding can be done in late fall or early spring. If the <br />soil will be stockpiled in the late spring or early summer, a <br />temporary cover crop of a sterile forage sorghum should be planted at <br />1/2 normal seeding rates. The temporary cover will stabilize the soil <br />until a more permanent cover can be planted. The upland seeding mix <br />can be drilled or broadcast directly into the temporary cover crop. <br />On the upland areas, spread topsoil material uniformly over the areas <br />to be reseeded. Seedbed preparation prior to grass seeding is <br />needed. Incorporate 40 lbs./acre of available phosphorus fertilizer. <br />The seedbed must not be rock hard or too fluffy. A firm seedbed is <br />best. Grill grass seed to a depth of 1/2 to 1 inch between November 1 <br />and April 15, preferably before a period of anticipated moisture. Use <br />a grass drill capable of handling fluffy seed, equiped with double <br />disc furrow openers, depth bands, and packer wheels. Spacing of drill <br />rows should be 7 to 12 inches. After drilling, mulch with 3000 to <br />4000 lbs./acre of long stemed prairie hay. The hay needs to be weed <br />free. Spread the hay uniformly over the seeded area and crimp into <br />the soil to a depth of 3 to 4 inches. <br />
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