U.S. flag

Una página web oficial del gobierno de los Estados Unidos

Dot gov

Los sitios web oficiales usan .gov

Un sitio web .gov pertenece a una organización oficial del Gobierno de Estados Unidos.


Los sitios web seguros .gov usan HTTPS

Un candado o https:// significa que usted se conectó de forma segura a un sitio web .gov. Comparta información sensible sólo en sitios web oficiales y seguros..

alert - warning

Esta página no se ha traducido al idioma español. Visite la página del idioma español para los recursos en ese idioma.


Encroachments are activities or construction within the floodway including fill, new construction, substantial improvements, and other development. These activities are prohibited within the adopted regulatory floodway unless it has been demonstrated through hydrologic and hydraulic analyses that the proposed encroachment would not result in any increase in flood levels.

The community is responsible to review and maintain record of the documentation demonstrating that any permitted floodway encroachment meets National Flood Insurance Program (NFIP) requirements. A "no-rise certification" for floodways may be used to document the analyses.

National Flood Insurance Program Requirements

  • 60.0 - Criteria for Land Management and Use
  • 60.3 (c) (10) - Cumulative Effects of Development
    • (d) (2) - Floodway Adoption
    • (d) (3) - Floodway Encroachment
    • (d) (4) - Floodway Encroachments that Cause an Increase
Glossary Section
NFIP - National Flood Insurance Program