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<br />Appropriation of Public Walen · end details with flared end sections and rip rap
<br />. (energy dissipaters).
<br />Permit approval is required for the appropriation of water · size and description of sttUcture.
<br />from: · emergency overflow elevation and route.
<br />B. ConstnJdion schedule.
<br />1. A public water basin or wetland wholly witliin C. NlUTative describing consttUction methods.
<br />Hennepin or Ramsey County which is less than 500 D. Erosion-Sediment Conltol Plan (see below).
<br />acres in surface area. E. Compuaations of watershed area. peak flow rates,
<br />2. A protected waterCourse which bas a drainage area and discussion of potential effects on water levels
<br />of less than 50 square miles. above and below the project area.
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<br />Applicants requesting approval to appropriate from public Roul!h Grtulinl! Pl4n
<br />waters must complete an Appropriation Checklist (avail-
<br />able from the RCWD Office). Rougb Grading Plans are issued to regulate earthwork on
<br />sites which will eventuaIlyrequire either a Land Develop-
<br />Bridge or Culvert ConstructWn and Repair ment Plan or FmaJ Site Drainage Plan, but for which
<br />development plans have not been finalized. ConsttUction
<br />Bridge or culvert consttUction and repair require pennit of impervious surfaces or sttUctures is not generally a1- ..
<br />approval. lowed with this permit.
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<br />Necessary exhibits to accompany the application include: Necessary exhibits include:
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<br />A. Conslruction details showing A. Grading and Erosion-Sediment Conltol Plan (see
<br />· existing and proposed flowline (invert) eleva- below).
<br />tions. B. Delineation of any ditches, floodplain, and wetland
<br />areas.
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<br />Storm water Manal!ement Plan Grtulinl! and Erosion-Sediment Control Plan h
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<br />Stormwater Management Plans must address the quan- 1. Existing and proposed topographic map showing ;jl
<br />tity and quality of runoff affecting a site. The following all property under conltol of the applicant. ~~:
<br />information must be shown: 2. Delineation of any ditches, floodplain, and wet- ~~i
<br />lands within the project area. r
<br />1. Documentation of ltibutary and on-site drainage 3. Minimum floor elevations for structures. ::,
<br />areas for existing and proposed conditions. 4. Emergency overflow elevations and routes. ~~;
<br />2. Calculations demonstrating the peak nIDoff rates 5. Proposed land use pIan showing roads. buildings, t
<br />from the site are not increased due to the project. parking lots. :11:
<br />Rate conltol is required for both the I- and 100- 6. Existing and proposed drainage features and el- :~1~
<br />year critical events. Plans should label normal, evations. f
<br />1-, and Ioo-year pond elevations. 7. Copy of MPCA notification for project with over ~:::
<br />3. Delineation of any ditches, floodplain, and wet- 5 acres of graded area. ~[~
<br />land areas within the project area. 8. Documenaationofconstructionphasingandimple- I
<br />4. Narrative describing adequacy of drainage routes mentation plan. ~ij
<br />downstream of project. . 9. Phone number and address of person responsible r
<br />5. Computation of any floodplain storage losses. for erosion conltol. '~1:
<br />6. Details of outlet structures showing elevation, use 10. Plan showing temporary and pennanent erosion ~t
<br />of a baffled weir/skimmer at pond outlets, and control features designed to prevent erosion and fi'
<br />sufficient permanent pool volume to meet Disltict contain sediment onsite. Measures include silt :;~
<br />requirements. fence. sediment basins, mulches, turf establish. ,:::
<br />ment, and outfall stabilization. ;i:
<br />. II. Schedule of anticipated construction sequencing. !!~
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