When working or living around rivers or other bodies of water it is critical to protect yourself and property by properly identifying flood hazard zones. Flooding occurs on a wide range of drainage courses including lakes, rivers, streams, and intermittent drainage ways. By identifying the flood hazard zones, an owner can ensure that their personal property will be safe from flooding issues.

REL can help with a wide variety of floodplain and drainage related concerns.  The following are examples of services that can be provided by REL professional engineers and surveyors:

Floodplain / Drainage

  • 100-Year Floodplain Determinations

    Hydraulic Analysis

    HEC-RAS Hydrologic Modeling

    Floodplain Mapping

  • Culvert / Bridge Capacity Analysis and Sizing
  • Mitigating Localized Flooding Concerns
  • Stream Restoration / Relocation
  • FEMA Mapping

Dam Analysis

  • Dam Analysis / Permitting
  • Dam Failure Analysis

    Operation / Maintenance Plans

    Emergency Action Plan Development

  • Dam Inspections
  • Dam Removal

Floodplain Management Mapping

  • Fema Flood Hazard Mapping

    Letter of Map Amendments (LOMA)

    Letter of Map Revision (LOMR)

    Conditional Letter of Map Revision (CLOMR)

  • Elevation Certificates
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