TO: Honorable Mayor & Members of the North Port Commission
FROM: Peter D. Lear, CPA, CGMA, City Manager
TITLE: Big Slough Flood Reduction Study and Stormwater Management Plan
Recommended Action
Discussion and direction regarding the Big Slough Flood Reduction Study and Stormwater Management Plan.
Background Information
During the Special City Commission Meeting held on December 6, 2018, Mr. David DeLoach, DeLoach Engineering Science, PLLC (DES), Consultant provided a presentation of the Big Slough Flood Reduction Study and Stormwater Management Plan. The Stormwater Management Plan has the following phased components:
* Widen and deepen the existing retention ditch/conveyance system and upsizing road crossing culverts in the Dorothy Avenue area.
* Construction of a new bypass canal parallel to the Myakkahatchee Creek within a portion of the City's Tier I lots that are located north of Price Boulevard.
* Increasing the conveyance capacity through widening and upsizing pipe culverts in the R-36 retention ditch/conveyance system that runs along the northern and western boundaries of the City.
* Restriction/reduction of high flow into Myakkahatchee Creek near the north City Boundary.
At the end of the meeting, the Commission approved the recommended flood reduction plan with phased components, however, not to proceed with the bypass relief canal without extensive historical and archaeological environmental research done first.
The Big Slough Flood Reduction Study and proposed Stormwater Management Plan including associated costs, timeline, checklist, project narrative, conceptual plans and staff recommendations have been prepared for review and consideration by the Commission.
Strategic Plan
Infrastructure
Financial Impact
Not applicable.
Procurement
Not applicable.
Attachments:
1. Stormwater Management Plan, February 2019
2. Appendix A - Big Slough Flood Reduction Study - Project Plan
3. Appendix B - Floodplain Justification Report
4. Appendi...
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