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No-rise Certification for Floodways

NFIP Policy Index

Definition/Description:
NFIP Requirement:
Other Applicable NFIP Regulations:
Guidance:
Related Keywords:
Special Topic Resources:

Definition/Description:

Any project in a floodway must be reviewed to determine if the project will increase flood heights. An engineering analysis must be conducted before a permit can be issued. The community's permit file must have a record of the results of this analysis, which can be in the form of a No-rise Certification. This No-rise Certification must be supported by technical data and signed by a registered professional engineer. The supporting technical data should be based on the standard step-backwater computer model used to develop the 100-year floodway shown on the Flood Insurance Rate Map (FIRM) or Flood Boundary and Floodway Map (FBFM).

NFIP Requirement:

60.3 (d) (3) - Floodway Requirement

Other Applicable NFIP Regulations:

60.3 - Criteria for land management and use
- (c) (10)
- (d) (2)

Guidance:

IS-9 Managing Floodplain Development Through The National Flood Insurance Program (NFIP) (pages 5-22, 23, 7-59)

Related Keywords:

Special Topic Resources:

Managing Floodplain Development (IS-9)
- Encroachment Review (5-21 to 5-24)
- Example No-Rise Certification (5-23)

Last Modified: Thursday, 04-Jun-2009 13:46:01 EDT