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The new crossing is proposed to be approximately 12 feet wide and 30 feet long, <br />perpendicular to the River. The River is approximately 30 feet in width at this location. <br />The rock of approximate D50 of 16 inches is proposed to be placed in the crossing to <br />avoid sediment generation during the use of the crossing. The thickness of this material is <br />planned to be 24 inches in depth. The existing grade of the River channel will not change; <br />the rock will be placed in accordance with the existing grade, except that the 12 feet road <br />surface will be flat, resulting in a very slight drop to continue the grade below the <br />crossing. <br />We believe that the minimal use of the crossing, combined with the planned parameters <br />of the installation will result in no significant impact and should be exempt under the <br />Nationwide 14 Permit regulations. <br />Michael, please call if you have any further questions. Thanks. <br />Sincerely, <br />Greg Lewicki, P.E. <br />Greg Lewicki and Associates <br />