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Planning Process




U.S. Army Corps of Engineers Non-Structural Floodproofing Study:

Valley Mede Hydrology and Hydraulic Study: 

  • Description: The Hydrology and Hydraulic Study is a comprehensive analysis of the Valley Mede Watershed. This analysis also models how certain water retention controls and channel enhancements will reduce the amount of flooding in Valley Mede in various storm conditions.
  • Completed Mid-November 2017; Delay due to additional analysis needed.
  • Public Presentation of the Study: November 15, 2017.
    Presentation materials and the H&H Study are found on the Stormwater Management page.

Valley Mede Storm Drain Inspection:

  • Description: An inspection of the storm drain system that serves as a conduit for Little Plumtree Branch drainage under MD Route 40 in the vicinity of St. John's Plaza in Ellicott City. The inspection report can be found here.
  • Completed March 2018.

Valley Mede Debris Removal

  • Description: Restoring Environment and Developing Youth (READY) and County departments will be removing debris from stream channels along Little Plumtree Branch and Plumtree Branch
  • Completed early Fall 2017.

Ellicott City Hydrology and Hydraulic Study and Concept Mitigation Analysis

Appendix A1
Appendix A2
Appendix A3
Appendix A4
Appendix B
Appendix C
Appendix D
Appendix E

  • Completed June 2017

Case Study

  • Completed March 2017; completed past deadline due to unforeseen contractor complications.

Stream Corridor Assessment

  • Completed early February 2017; report delayed due to reevaluation of recommendations after Department of Public Works completed additional repairs.

Community Advisory Group Final Report

  • Completed February 2017

Economic Impact Study

  • Completed November 2016

Historic Ellicott City Flood Workgroup Report

  • Completed October 30, 2015

Previous Ellicott City Flood Studies

Maps of the Tiber-Hudson Watershed - open the "Map Information for Ellicott City Recovery" tab under "What's New" after clicking on this link.