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<br />Sack \:oncr~te Revetment <br /> <br />Sack concrete revetments can be used to control bank erosion in nearly every <br />situation. The stream bank should be shaped to a slope no steeper than 1 <br />horizontal to 1 vertical. aur1ap or plastic sacks are filled with soil-cement <br />or sand-cement mixtures, The sacks are then stacked along the bank. The toe <br />for the sacks should be placed below the channel bottom to prevent any under- <br />cutting of the sacks, After the sacks have been placed, they can be hosed <br />down to get a quick set or they can be left to harden from natural precipita- <br />tion. The durability of this practice will depend on the quality and propor- <br />tions of the mixture in the sacks. The sacks should extend up the bank to at <br />least one foot above the high waterline. If the sacks do not extend to the <br />top of the bank, the bank should be shaped and seeded. <br /> <br />j <br /> <br />1 <br /> <br />1 <br /> <br />This practice should be maintained by <br />erosion at the ends of the revetment. <br />patched. Scoured areas at either end <br />protected. <br /> <br />inspecting for broken-up concrete and <br />Any broken-up concrete should be <br />of the revetment should be shaped and <br /> <br />~ <br />, <br /> <br />~ <br /> <br />~ <br /> <br />c;R <br />