Flood Maps

FEMA Flood Maps now in effect for the Town of Darien (note the recent changes to the Goodwives River area and Stony Brook area in the ending parts of this page as a result of Letters of Map Revisions in 2014 which affect panels 526, 528, 529 and 536).

Flood Maps

• Map 09001 C0507 F effective June 2010 (northwest corner of Darien near the Noroton River) (PDF)
• Map 09001 C0509 F effective June 2010 (west-central Darien near the Noroton River) (PDF)
• Map 09001 C0517 G effective July 2013 (southwest corner of Darien near Holly Pond) (PDF)
• Map 09001 C0526 F effective June 2010 (north Darien) (PDF)
  Note: A small part of this map is superseded by the Goodwives River Letter of Map Revision.
• Map 09001 C0527 F effective June 2010 (small portion of east of Darien) (PDF)
• Map 09001 C0528 G effective July 2013 (central Darien-Stony Brook-Noroton Heights) (PDF)
  Note: Parts of this map are superseded by BOTH the Goodwives River and Stony Brook Letters of Map Revision.
• Map 09001 C0529 G effective July 2013 (southeast corner of Darien-Five Mile River-Tokeneke Brook-part of Goodwives River) (PDF)
  Note: Part of this map is superseded by the Goodwives River Letter of Map Revision.
• Map 09001 C0536 G effective July 2013 (south Darien-Goodwives River-Holly Pond-Noroton Bay-Scotts Cove) (PDF)
  Note: Parts of this map are superseded by BOTH the Goodwives River and Stony Brook Letters of Map Revision.
• Map 09001 C0537 G effective July 2013 (southeast of Darien small part of Tokeneke-Five Mile River) (PDF)
• Map 09001 C1 ND0 C-the map index for Darien (entire) (PDF)

Flood Maps which recently went in effect for the Town of Darien as a result of Letters of Map Revision in August/September 2014 for both the Goodwives River and Stony Brook

Goodwives River

• 01 -Cover Letter (PDF)
• 02 - Section One MT-2 Applications Forms (PDF)
• 03 - Section Two Goodwives River FEMA LOMR Application (PDF)
• 04 - Figure 2-1 Goodwives Watershed Map (PDF)
• 05 - Figure 3-1 Delineated Subbasins for Hydrologic Model (PDF)
• 06 - Figure 3-2 Existing Land Cover (PDF)
• 07- Figure 3-3 Hydrologic Soils (PDF)
• 08- Figure 4-1 Cross Section Locations in Existing Conditions Model (PDF)
• 09- Appendix A - Hydrology Calculations - Hydrology Computer Models (PDF)
• 10 - Appendix A - Hydrology Calculations - Runoff Curve Number Calculations (PDF)
• 11 - Appendix A - Hydrology Calculations - Time of Concentration Calculations (PDF)
• 12 - Appendix B - Hydrology Output (PDF)
• 13 - Appendix C - FEMA Effective HEC-2 Model (PDF)
• 14 - Appendix D - Duplicate Effective Model Input and Output (PDF)
• 15 - Appendix E - Revised Duplicate Effective Model Input and Output (PDF)
• 16 - Appendix F - Existing Conditions Model Input and Output (PDF)
• 17 - Appendix G - Certified Topographic Map (PDF)
• 18 - Annotated FIRM Map (PDF)
• Map which took effect on September 9, 2014 for the areas near Goodwives River. (PDF)
  This map affected a very small portion of panel 526, and panels 528, 529, and 536.

Stony Brook

• 01 - Cover Letter (PDF)
• 02 - Section One MT-2 Application Forms (PDF)
• 03 - Section Two Stony Brook FEMA LOMR Application (PDF)
• 04 - Figure 2-1 Watershed Map (PDF)
• 04 - Figure 3-1 HEC-HMS Subbasin Map (PDF)
• 05 - Figure 3-2 Hydrologic Soils Map (PDF)
• 06 - Figure 3-3 Watershed Landuse (PDF)
• 07 - Figure 4-1 MMI Cross Section Locations (PDF)
• 08 - Appendix A - Hydrology Calculations - Hydrology Computer Models (PDF)
• 09 - Appendix A - Hydrology Calculations - Runoff Curve Number Calculations (PDF)
• 10 - Appendix A - Hydrology Calculations - Time of Concentration Calculations (PDF)
• 11- Appendix B - Hydrology Output (PDF)
• 12 - Appendix C - FEMA Effective HEC-2 Model (PDF)
• 13 - Appendix D - Duplicate Effective Model Input and Output (PDF)
• 14 - Appendix E - Revised Duplicate Effective Model Input and Output (PDF)
• 15 - Appendix F - Existing Conditions Model Input and Output (PDF)
• 16 - Appendix G - Certified Topographic Map (PDF)
• 17 - Annotated FIRM Map (PDF)
• A link to the Flood Regulations (Section 820) of the Darien Zoning Regulations. (PDF)
• Annotated Flood Insurance Rate Map (PDF)
  (Revised to reflect LOMR effective August 21, 2014)
• Letter of Map Revision (LOMR) Determination Document and Annotated Flood Insurance Study Report (PDF)
  FEMA Response Materials to Jayme Stevenson, First Selectman (received April 9, 2014)
• Map which took effect in 2014 for the areas near Stony Brook (PDF)
  This map affected panel 528 and a very small portion of panel 536.

Associated Flood Insurance Studies

• FEMA Flood Insurance Study October 2013 (Volume 1 of 6) 139 pages. (PDF)
• FEMA Flood Insurance Study October 2013 (Volume 2 of 6) 133 pages. (PDF)
• FEMA Flood Insurance Study October 2013 (Volume 3 of 6) 133 pages. (PDF)
• FEMA Flood Insurance Study October 2013 (Volume 4 of 6) 133 pages. (PDF)
• FEMA Flood Insurance Study October 2013 (Volume 5 of 6) 133 pages. (PDF)
• FEMA Flood Insurance Study October 2013 (Volume 6 of 6) 133 pages. (PDF)