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z <br />Section 3.0 <br />Section 3.1 (continued) <br />livestock ponds were constructed within and adjacent to the drainage and will aid <br />in reducing the amount of runoff flowing into the drainageway. A number of dozer <br />basins were constructed on nearby regraded spoils to trap sediment prior to <br />entering the reconstructed Coyote drainage. Future efforts to assist in the long <br />term stability of this drainage include establishing seedling shrubs and trees <br />in drainage channels. <br />East No-Name <br />Approximately 3,700 feet of drainageway erosion control was accomplished in 1987. <br />Following regrading of the permanent primary channel, numerous erosion control <br />structures (hay bales and rock) were constructed to encourage sedimentation and <br />slow flow velocities. This drainage was not re topsoiled. Approximately 75 hay <br />bale structures and 50 rock structures were constructed on 12.5 ft to 50 ft <br />intervals (most of which were located in the southern 2/3 of the drainage). <br />All rock structures and many hay bale structures were keyed in using cloth filter <br />fabric (mirifi). The downstream side of many hay bale structures were rock <br />armored for additional protection and stability. The drainage was broadcast <br />seeded using a combination of approved perennial seed mix and sterile seed. The <br />drainage was mulched (1500ik/acre), landglas applied (.35~6/yd2) and asphalt <br />tacked (.35 gal/yd2) to stabilize the surface. <br />Construction of several livestock ponds in the drainage channel and on adjacent <br />reclaim areas will aid in reducing the amount of water passing through the <br />drainage during major precipitation events or runoff periods. Established dozer <br />basins will slow down water and collect sediment. <br />West No-Name <br />Four thousand-three hundred feet of permanent drainageway was regraded and <br />topsoiled to a depth of 6 inches. Following topsoiling, the drainage area was <br />drill seeded with appropriate perennial and sterile seed. Vegetation structures <br />(willow bundles) were keyed in at approximately 25-ft intervals (160 ea) along <br />the entire topsoiled drainage channel. The channel was mulched, landglased and <br />tacked down with emulsified asphalt. Several livestock ponds were constructed <br />and will reduce the actual amount of water passing through the drainage. Future <br />efforts to increase drainage stability in 1988 include the establishment of <br />seed Ling shrubs and trees and rock armoring of eroding areas in the channel, <br />where appropriate. <br />Johnson Gulch <br />ALL permanent reconstruction efforts were on tributaries of the main channel. <br />Approximately 2,050 feet of permanent drainage repair was accomplished by keying <br />in newly stockpiled brush from topsoil strip areas into existing drainage cuts <br />(1600' located in A pit tributary leading to the west ash dump area, and 450' at <br />the junction of the main haul road and the A pit haul road). Brush piles were <br />loaded on 50 ton haul trucks, transported to a gully location, then placed and <br />crimped in using dozers and/or loaders. <br />