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<br /> <br />) <br /> <br />extremely slow method to use besides being very labor intensive. <br />It also may expose the workforce to dangerous conditions if the <br />levee fails. Because of the large amount of material that must be <br />moved, other methods should be considered if it is determined that <br />hand labor will be the only way to build an earthfill cap. <br /> <br />Notes <br /> <br />Sandbag Capping <br /> <br />Advantages: <br /> <br />."j Dependable, time tested method <br />."j Easily adaptable to various conditions <br />."j Does not require heavy machinery on levee <br /> <br />Disadvantages <br /> <br />."j Very labor intensive <br />."j Slow to construct <br />."j May expose workforce to dangerous conditions <br /> <br />Sandbags are commonly used to cap levees. This is a time <br />tested method that has a proven track record. Sandbag caps are <br />_ ~,__easily-1ldaptable.lO.a.vatiety-of CQn,Htions.and-are.relative1y --- ----~ - ~- - ---- - - . - <br />resistant to wave action and erosion. <br /> <br />The height of a sandbag cap is limited by the base area <br />available. For every foot in height, a three foot base is required to <br />support the sandbag cap. For example, a sandbag cap three feet <br />high will require a 9 foot base. Remember that room must be left <br />on the levee crown for material paths and access routes. <br /> <br />Hundreds or thousands of sandbags will be needed for even <br />modest projects. There are two options available to fill the <br />sandbags. If the levee is in good shape and there is ample room <br />and access to the site, the sandbags may be filled at the base of the <br />levee and passed using gang lines to the crown. However, if the <br />levee is in poor shape or water is near the crown, it may be <br />preferable to fill the bags at remote locations and transport them to <br />the levee for use. This option lessens the danger to the workforce <br /> <br />Page4-5 <br />