In addition to the information required in Env-Wt 300, the applicant shall submit the following for any stream crossing project that is subject to an SPN, LSA, or EXP:

1. (a) A USGS map or updated elevation data based on LiDAR on which the following are clearly delineated or otherwise noted:

   1. (1) The approximate boundaries of the contributing watershed;
   2. (2) The size of the contributing watershed; and
   3. (3) Identification of the stream tier based on watershed size;

2. (b) Plans that show the following:

   1. (1) The scale of the plan and a north arrow;
   2. (2) The extent of disturbance;
   3. (3) Road locations, including road edges, centerline, and boundaries of the right-of-way;
   4. (4) Proposed channel work including bank erosion control features, grade control, and channel linings; and
   5. (5) All dimensions of the proposed structure and of the existing structure, if any, including inlet and outlet invert elevations;
3. (c) The hydraulic capacity of the proposed crossing, in terms of flood frequency event, and of the existing crossing, if any;
4. (d) The type of crossing, such as a culvert or span, that is proposed and that exists, if any;

5. (e) The following information about the dewatering system proposed to be used:

   1. (1) Estimated maximum flow anticipated during construction;
   2. (2) The location, height, and width of the diversion dam;
   3. (3) The location and capacity of each sump; and
   4. (4) Backwater prevention method; and

6. (f) The following information about erosion and pollution controls:

   1. (1) The sediment treatment plan, including methods, release point(s), and extent;
   2. (2) Any additional methods proposed to control erosion; and
   3. (3) All methods of preventing and controlling releases from pumps, fuel stations, and equipment storage.

Source. #12809, eff 12-15-19