The drainage study and hydraulic design process includes the development of permit drawings and completion of pertinent application forms for State and Federal environmental permits. The material is developed through coordination with the Natural Systems Unit and upon completion is provided to them for submittal to permitting agencies. The procedure for development of the drawings and application should be as follows:

(1) Review the environmental document to obtain wetland area, identifications, jurisdictional streams and other information regarding permit requirements. While the planning documents include delineation of wetland limits, it is not generally of sufficient detail in actual limit description to fully define the project/wetland involvement. This requires detailed field confirmation by the hydraulics designer. If questions arise, the environmental permitting section, must be consulted for assistance in the analysis.

(2) Assemble information gathered during the pre-design study, field survey and design that is pertinent to the permit application. This would include:

• Location and classification of wetland and streams
• Topo. and elevation data at sites
• Drainage structure and/or channel design data
• Watershed area
• Flow data (ex. average, low, bankfull)

(3) Prepare the permit drawings. An example drawing is included as Appendix L . The drawings are to conform to, and should include as a minimum the following:

• Location-vicinity maps showing project location and permit site(s).

• Plan view of site(s) including pertinent drainage and roadway features, wetland limits, area of wetland disturbance, fill below ordinary high water, property owners.

• Profile view of site(s) showing roadway grade, natural ground, ordinary high water, drainage structure, fill below ordinary high water, wetland limits.

• Section view if needed to clarify proposal.

• Quantities for each site of total fill within the wetland area, fill below ordinary high water and acreage of wetland fill are to be included on the sketches.

(4) Complete application form.

With use of electronic drafting techniques which provide many layers of data, it is important that the permit drawings be easy to interpret. To accomplish this, limit the amount of data on the drawings to that which is necessary for clearly identifying the permitted activity and avoid cluttering the sheet with unnecessary information