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Description: The National Flood Hazard Layer (NFHL) contains current effective flood hazard data. It is a compilation of effective Flood Insurance Rate Maps (FIRM) databases and Letters of Map Revision (LOMRs). FEMA provides the flood hazard data to support the National Flood Insurance Program. This information can be used to better understand the level of flood risk and type of flooding in a given location. The NFHL can also be used in place of the FIRM for NFIP purposes with appropriate care. More information can be found on the FEMA website: https://www.fema.gov/flood-maps/national-flood-hazard-layerJefferson County Planning and Zoning downloaded this dataset in October of 2026 and processed it for use in local web mapping applications. Data Type: Static.Vintage: October 2026 from the Federal Emergency Management Agency (FEMA).Data are in State Plane Grid Coordinates, Colorado Central Zone, NAD83.

Service Item Id: d2f623c516964198be0db89465456d4b

Copyright Text: Credit the Federal Emergency Management Agency (FEMA) in any use of this data.

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Layer: Coal Creek Base Flood Elevation (1)

Name: Coal Creek Base Flood Elevation

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Description: The National Flood Hazard Layer (NFHL) contains current effective flood hazard data. It is a compilation of effective Flood Insurance Rate Maps (FIRM) databases and Letters of Map Revision (LOMRs). FEMA provides the flood hazard data to support the National Flood Insurance Program. This information can be used to better understand the level of flood risk and type of flooding in a given location. The NFHL can also be used in place of the FIRM for NFIP purposes with appropriate care. More information can be found on the FEMA website: https://www.fema.gov/flood-maps/national-flood-hazard-layer Jefferson County Planning and Zoning downloaded this dataset in October of 2026 and processed it for use in local web mapping applications. To identify the floodways, the zone subtype 'FLOODWAY' was queried.Data Type: Static.Vintage: October 2026 from the Federal Emergency Management Agency (FEMA).Data are in State Plane Grid Coordinates, Colorado Central Zone, NAD83.

Service Item Id: d2f623c516964198be0db89465456d4b

Copyright Text: Credit the Federal Emergency Management Agency (FEMA) in any use of this data.

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Description: The National Flood Hazard Layer (NFHL) contains current effective flood hazard data. It is a compilation of effective Flood Insurance Rate Maps (FIRM) databases and Letters of Map Revision (LOMRs). FEMA provides the flood hazard data to support the National Flood Insurance Program. This information can be used to better understand the level of flood risk and type of flooding in a given location. The NFHL can also be used in place of the FIRM for NFIP purposes with appropriate care. More information can be found on the FEMA website: https://www.fema.gov/flood-maps/national-flood-hazard-layerJefferson County Planning and Zoning downloaded this dataset in October of 2026 and processed it for use in local web mapping applications. To identify the 100-year flood zones, zones 'A', 'AE', 'AH', and 'AO' were queried. Data Type: Static.Vintage: October 2026 from the Federal Emergency Management Agency (FEMA).Data are in State Plane Grid Coordinates, Colorado Central Zone, NAD83.

Service Item Id: d2f623c516964198be0db89465456d4b

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Description: The National Flood Hazard Layer (NFHL) contains current effective flood hazard data. It is a compilation of effective Flood Insurance Rate Maps (FIRM) databases and Letters of Map Revision (LOMRs). FEMA provides the flood hazard data to support the National Flood Insurance Program. This information can be used to better understand the level of flood risk and type of flooding in a given location. The NFHL can also be used in place of the FIRM for NFIP purposes with appropriate care. More information can be found on the FEMA website: https://www.fema.gov/flood-maps/national-flood-hazard-layerJefferson County Planning and Zoning downloaded this dataset in October of 2026 and processed it for use in local web mapping applications. To identify the 500-year flood zone, the zone subtype '0.2 PCT ANNUAL CHANCE FLOOD HAZARD' was queried. Data Type: Static.Vintage: October 2026 from the Federal Emergency Management Agency (FEMA).Data are in State Plane Grid Coordinates, Colorado Central Zone, NAD83.

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Layer: Jefferson County Flood Prone Area (6)

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Layer: FEMA Zone D Floodplain (7)

Name: FEMA Zone D Floodplain

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Description: P&Z's Kirk Hagaman used the National Hydrography Dataset (NHD) "flowline" feature class and FEMA guildlines to delineate zone D flood plain designations for portions of the County. For information, please contact Kirk at 303.271.8761.Data is in State Plane Grid Coordinates, Colorado Central Zone, NAD83.

Service Item Id: d2f623c516964198be0db89465456d4b

Copyright Text: Credit Jefferson County Planning & Zoning (P&Z), U.S. Geological Survey, and Federal Emergency Management Agency (FEMA) in any use of this data.

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Name: FEMA Map Panel Index

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Description: The National Flood Hazard Layer (NFHL) contains current effective flood hazard data. It is a compilation of effective Flood Insurance Rate Maps (FIRM) databases and Letters of Map Revision (LOMRs). FEMA provides the flood hazard data to support the National Flood Insurance Program. This information can be used to better understand the level of flood risk and type of flooding in a given location. The NFHL can also be used in place of the FIRM for NFIP purposes with appropriate care. More information can be found on the FEMA website: https://www.fema.gov/flood-maps/national-flood-hazard-layerJefferson County Planning and Zoning downloaded this dataset in October of 2026 and processed it for use in local web mapping applications. Data Type: Static.Vintage: October 2026 from the Federal Emergency Management Agency (FEMA).Data are in State Plane Grid Coordinates, Colorado Central Zone, NAD83.

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