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Table 2. Timeline for Implementing Maintenance <br />Condition <br />Timeframe for Implementation <br />Maintenance of temporary dike <br />and ditch (DD) <br />Redefine channel back to its original shape as <br />necessary. Remove any sediment accumulations to <br />maintain its carrying capacity. Repair any scour, <br />erosion, washouts or breaches along the berm. <br />Maintenance of temporary berm <br />Repair any washouts or breaches along the berm. <br />Maintenance of temporary slope <br />drain (TSD) <br />Remove any sediment accumulations at the inlet. <br />Repair any erosion at the outlet. <br />Maintenance of inlet protection <br />(IP): straw bal (IP -StB) or silt <br />fence (IP -SF) <br />Sediment should be removed when sediment <br />accumulation reaches one -half the height of the <br />straw bale or silt fence. <br />Maintenance of inlet protection- <br />gravel bag (IP -GB) <br />Sediment should be removed when it has <br />accumulated to one half of the original height of the <br />protection structure. <br />Gravel bags that have been damaged by vehicular <br />traffic should be repaired or if necessary replaced <br />If there are gaps between bags, the gravel bags <br />must be reset so that each bag tightly abuts the <br />adjacent ones. Bags on either end of the inlet <br />protection must also have tight contact with the <br />curb. <br />Maintenance of inlet protection — <br />filter fabric (IP -FF) <br />Sediment deposits will be removed and the filter <br />fabric restored to its original dimensions when the <br />sediment has accumulated between 1/3 and 1/2 of <br />the available storage located between the fabric <br />and the bottom of the grate. Care shall be taken to <br />ensure trapped sediment does not fall into the inlet. <br />Any material falling into the inlet shall be removed. <br />Filter fabric shall be inspected for holes or tears and <br />if necessary replaced. <br />Maintenance of inlet protection- <br />sediment control log (IP -SCL) <br />Sediment should be removed when sediment <br />accumulation reaches one -half the height of the <br />sediment control log. Move sediment to a location <br />where it cannot wash back into any ditches, <br />drainages, or other receiving waters. Retrench any <br />log that has been undercut. Fill in and tamp down <br />any gullies that have formed. <br />Animas Glacier SWMP February 2012 <br />p. 21 <br />