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Improved Channel. If it is detemilned that topography of the regraded area is such that drainage is <br />• concentrated into a particular azea, drainage control will be improved. The drainage bottom or <br />channel will be reshaped, if needed. This will be done with either a motor grader or dozer, making <br />the channel in the shape of a V that is approximately 16 feet to 20 feet wide. The channel bottom will <br />be seeded, or covered with erosion mattiag and seeded, or rocked. The method used will depend on <br />site conditions. Continued observations will be made of this azea for additional problems or <br />necessary manitenance. <br />No Defined Channel On a slope where there is no Swale or defined channel, a number of operations <br />will be performed, depending on the extent of the erosion. The azea will be disked on the contour or <br />erosion matting will be placed on the area, depending again on site characteristics. Reseeding will <br />then take place. In addition to the above, contour furrows in and above the erosion azea may be <br />constructed to intercept and slow down the runoff or to channel flows. Straw dikes will also be used <br />where appropriate to control runoff and promote vegetation. <br />Other Methods. If comecdve measures described under "No Defined Channel" fail, further <br />observation will be necessary to develop additional measures. A combination of the first two <br />• described methods or some variation will then be applied. Methods may include rock channels, <br />contour furrows, or laterals with rock or matting lined bottoms, V ditches made with a dozer or <br />motor grader, and methods described above to reestablish vegetation <br />Head Cutting Stabilization. Head cutting will be controlled using several varying methods. If the azea <br />is at a point that concentrates runoff, the azea will be improved to accept the nmoff. This would <br />include reshaping the channel and chatmel bottom, seeding, and covering the channel with erosion <br />matting or rock. In other azeas, depending on the extent of erosion and time of year, disking and <br />seeding will be conducted as required. Straw bales, erosion matting and rock fill may also be used to <br />stabilize the area. Sttaw mulching and crimping will be considered as a further option. <br />A copy of the rill and gully field map will be submitted to the Division by June 1 of each yeaz <br />identifying the rill-and gully areas along with a rill and gully stabilization plan that briefly describes the <br />problem at each identified area and the proposed mitigative measures. The rill and gully stabilization <br />plan will be implemented bq July 1 of each yeaz and completed by November 1 ox until weather <br />conditions restrict operations. <br />r1 <br />L_J <br />PR-02 28 Revised 01!06 <br />