predominantly perpendicular to the slope. The logs must be in ground contact 

 to be effective to control erosion at the direction of Forest Officer. 



• Slash disposal can be accomplished by in-woods processing or return slash 

 skidding concurrent with harvest operations. Slash should be spread on trails. 



• Install and maintain adequate erosion control in harvest units, skid trails, and 

 cable corridors as needed. Steep disturbed areas would likely require a 

 combination of waterbars and mulching with slash or straw, filter fence, and 

 grass seeding due to the lack of fine slash and foliage following the fire. 



• Drainage features located in areas with inadequate buffer capacity should be 

 provided with effective sediment filtration through the use of slash filter 

 windrows, filter fabric fencing, or straw bales. Note: straw bales alone may 

 not be effective in areas with heavy concentrations of livestock or big game. 



• Ditches with direct delivery to streams or ephemeral draws need to be filtered 

 at the outlet by using slash or filter fabric and straw bales. Where feasible, rip, 

 seed, water bar, and slash any non-system roads within the sale area 

 concurrent with construction acfivities. Seed skid trails over 30%. Scatter 

 slash on skid trails and cable corridors where needed to control erosion. 



• Installation of the Deer Creek temporary bridge must meet requirements of 

 124 permit and should be installed winter 2003 and removed before spring 

 runoff. Install bridge so as not to disturb creek banks. Install sediment fence or 

 erosion control as needed to prevent sedimentation. 



• Rock armor both the inlet and outlet of all CMP installations. Provide energy 

 dissipaters at outfall of all CMP installations. Rock used for armoring should 

 be 12 to 18 inches in diameter for expected high runoff flows. 



• When excavating material in and around stream and draw crossings (i.e. 

 installing new CMPs, cleaning inlets and outlets, constructing ditches, etc.) 

 special care should be taken so as not to cause an excessive amount of 

 disturbance to the stream channel or area immediately adjacent to the crossing 

 site. Excess or waste material should be disposed of at a location where it will 

 not erode directly into the stream or draw bottom. 



• Limit road use and hauling to dry, frozen, or snow covered conditions. 

 Suspend operations when these conditions are not met before rutting occurs. 



• Mark and maintain minimum SMZ width consistent with law and ARM 

 requirments. These widths may be extended for erosive soils based on 

 specialist site specific review as noted in Forest Rule requirements for RMZ's. 

 The RMZ widths are dependent on: the erosion potential of soils at the site, 

 the steepness of the side slope, and the presence of any topographic breaks. 



Fish Creek Salvage Environmental Assessment 2-6 



