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Improved Channel. If it is determined that topography of the regraded area is such that drainage is <br />• concentrated into a particular area, 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 matting and seeded, or rocked. The method used will depend on <br />site conditions. Continued observations will be made of this area for additional problems or <br />necessary maintenance. <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 area 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 area 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 corrective 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 />r1 <br />L_J <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 area <br />is at a point that concentrates runoff, the area will be improved to accept the runoff. This would <br />include reshaping the channel and channel bottom, seeding, and covering the channel with erosion <br />matting or rock. In other areas, 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. Straw 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 year <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 by July 1 of each year and completed by November 1 or until weather <br />conditions restrict operations. <br />PR-02 28 Revised 01 /06 <br />