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Project Reviews

 

Listed below are some of the qualifiers for determining if a project needs to be submitted to the Commission.  The entire document may be found to the left under Application and Requirements.

 

The Commission requires a plan review to be completed by the local permitting authority for development or redevelopment if any part of the development is within a 100-year floodplain or upland flood storage area and/or the project changes the timing, storage, or carrying capacity of any tributaries of the 100-year floodplain.

  • A development plan review by the local permitting authority is required for the following projects:
  • Residential development or redevelopment on sites 8 acres or more, or
  • Residential development or redevelopment on sites 5 acres or more with a density of more than 2 units per acre, or
  • Commercial and industrial development or redevelopment on sites of one acre or more, or
  • Road projects that result in a net increase in impervious surface area of one acre or more.



A plan review by the Commission is required for projects that transcend the boundaries of an adjoining community and will affect the communities’ approved stormwater management plan.

Changes in the local communities’ water quantity policies require review and approval of the Commission

 

Plans must be submitted to the local permitting authority for any proposed alteration of waterways, culvert or bridge installations or replacements in waterways.   Plans must show the location of installation, diameter, length and type of culverts, proposed invert elevations, bridge details, etc. along with pertinent hydrologic computations.

 

  • A plan review by the local permitting authority is required for the following projects:
  • Residential development or redevelopment on sites 8 acres or more, or
  • Residential development or redevelopment on sites 5 acres or more with a density of more than 2 units per acre, or
  • Commercial and industrial development or redevelopment on sites of one acre or more, or
  • Road projects that result in a net increase in impervious surface area of one acre or more.

 

The Commission shall defer all public ditch authority to Hennepin County.

 

The Commission or designated Local Government Unit (LGU) requires the developers to complete a wetland delineation by a trained wetland professional to identify the location and extent of any wetlands present within the development site.


The Commission shall review wetland delineations as part of the development plan review for all new developments and redevelopments for those communities where the Commission is the LGU.
The local permitting authority shall review plans for conformance with Best Management Practices for the following developments:

  • Residential development or redevelopment greater than 1 acre in size, or
  • Commercial/industrial development or redevelopment, or
  • Any road, street, or highway project that results in a net increase in impervious surface.

 

Commissions consider Soil Amendment and Structural Soil standards

 

The Shingle Creek/West Mississippi joint Technical Advisory Committee (TAC) is currently undertaking a review of the Commissions’ rules and standards as a part of their development of the Commissions’ Third Generation Watershed Management Plan. During their review the TAC is considering incorporating a soil amendment standard into the rules, whether it should be mandatory or whether it could be an optional BMP for which developers could receive credit toward the abstraction requirement. Using information from the State of Washington, Commission staff has crafted draft standard specification 02486 Soil Amendment, which is more consistent with MnDOT specifications and is in CSI format, a standardized format commonly used in Minnesota. TAC members discussed using this specification on city projects, such as for backfill along the boulevard on street reconstruction projects. Staff continues to research and quantify the infiltration benefits of the proposed Soil Amendment as a possible credit toward the abstraction requirement.

 

Staff also developed specification 02201 Structural Soil for the Capitol Region Watershed District for use in the tree trenches along University Avenue on the Central Corridor light rail project. It is based on the Stockholm structural soil specification but should be less expensive to use as a soil matrix for tree planting in areas where surrounding subsoils have been compacted and are inadequate for proper tree root development. 

 

Copies of the draft Amended Top Soil and Structural Soil specifications are available for review and comment to ematthiesen@wenck.com.