02/12/2003 P&Z Packet - Laserfiche WebLink

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• • • Land Development Plans Land Development Plans are any proposal to subdivide land. Permit approval is required for: 1. Residential land development plans greater than 5 acres. 2. Industrial, commercial, and multi -unit residential plans greater than 2.5 acres. 3. Subdivision of any size located within: • 100 -year floodplain. • 1,000 feet of a public water or protected wetland, or any parcel containing wetland. 300 feet of Rice Creek, a major tributary to Rice Creek, or a county or judicial ditch. • Areas with slopes exceeding 15 %. Applications for Land Development Plans must include: A. Stormwater Management Plan (see page 3). * B. Grading & Sediment - Erosion Control Plan (see p. 3). * C. Preliminary plat or certificate of survey granting easements over all hydrologic features such as floodplain, wetlands, ditches, ponds, and swales. * A and B are required only for land splits where construction is proposed. Wetland Alteration Plans Permit approval is required for any activity that may affect the size, shape, or character of a wetland. Proposals for wetland alterations must include: 1. Narrative describing purpose of project and efforts taken to avoid or minimize wetland impacts. 2. Grading & Sediment - Erosion Control Plan (see page 3) showing existing and proposed elevations for wetland and spoil disposal areas. 3. Wetland delineation and support documentation in accordance with WCA rules. 4. Wetland Replacement Plan application for projects involving fill or drainage. Public and Private Drainage Plans Construction, improvement, or repair of public or private drainage systems (open or tiled) requires permit approval. Exhibits necessary to accompany the permit application include: 1. Map showing location of project and tributary area. 2. Existing and proposed cross sections and profile of affected area. 3. Description of bridges or culverts required. 4. Narrative describing wetland impacts and affects on water levels above and below the project area. 2 Final Site Drainage Plans Approval of Final Site Drainage Plans is required for: 1. Development of individual sites of 2.5 acres or greater. 2. Impervious additions to existing buildings on sites 2.5 acres or greater. 3. Development on any individual site within: • 100 -year floodplain. ■ 1,000 feet of a public water or protected wetland. • 300 feet of Rice Creek, a major tributary to Rice Creek, or a county or judicial ditch. Construction of a single - family detached dwelling on an isolated lot will not require permit approval unless one of the above - listed conditions exists. Construction on lots within a residential subdivision approved by the District will not require District approval unless the activity does not comply with the original development plan or has been superseded by State law. Permit applications for Final Site Drainage Plans must include: A. Stormwater Management Plan (see page 3). * B. Grading & Sediment- Erosion Control Plan (see p. 3). C. Preliminary plat or certificate of survey granting easements over all hydrologic features such as floodplain, wetlands, ditches, ponds, and swales. * A is not required for construction of a single - family dwelling on an isolated lot. Bridge or Culvert Construction and Repair Bridge or culvert construction and repair on creeks, public ditches, or major tributaries requires permit approval. Necessary exhibits to accompany the application include: 1. Construction details showing: • existing and proposed flow line (invert) elevations. • end details with flared end sections and rip rap (energy dissipaters). • size and description of structure. • emergency overflow elevation and route. 2. Construction schedule. 3. Narrative describing construction methods. 4. Erosion - Sediment Control Plan (see below). 5. Computations of watershed area, peak flow rates, and discussion of potential effects on water levels above and below the project area.