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fLoodplain Management Program

Floodplain Management

Floodplain Mapping Modernization

Converting floodplain maps to a digital format is one more step towards FEMA’s goal to acquire better more accurate mapping. It does not address all the flaws in existing maps. However it will make the maps easier to change in the future and reduce the costs of printing new maps in the long term. Processing Maine’s floodplain maps to a digital format for distribution in electronic media and made available on the internet will increase availability to more people than ever before. The first counties to be remapped into a completely digital format are Oxford, Kennebec, Cumberland and York

 

Androscoggin County

Androscoggin floodplain mapping was initiated in the fall of 2009. FEMA contracted with STARR, LLC to complete new floodplain mapping for all Androscoggin county communities. The task order calls for completing new detailed studies for 140 stream miles, new model based approximate studies for 191 stream miles and re-delineation for 111 stream miles. It also included provision for acquisition of new high resolution topographic data for the county.
New topographic data acquisition was completed in the spring of 2010 and with the help of USGS funding completely processed. The data is now available on the USGS Center for LiDAR Information and Knowledge website. The Table below shows the most recent details on mapping progress.

Androscoggin Mapping Progress Report

Project Work Products

Start Date

Status

Outreach

On Going

Acquire Base Map

1/4/2010

Completed

Develop Topographic Data

1/11/2010

Completed

Perform Field Survey

1/11/2010

Completed

Perform Hydrologic Analysis

2/22/2010

Completed

Perform Independent QA Hydrologic Analysis

Develop Hydraulic Data

4/5/2010

Completed

Perform Independent QA Hydraulic Data

Perform Floodplain Mapping

7/8/2010

Completed

Perform Independent QA Floodplain Mapping

8/5/2010

Develop DFIRM Database

8/4/2010

Produce Preliminary Map Products

8/12/2010

Distribute Preliminary Map Products

10/10/2010

Independent QA of Preliminary Map Products

8/5/2010

Post Preliminary Processing

10/20/2010

 

 

Last Updated February 11, 2011
For official floodplain information and permitting purposes you should always visit your local town office and discuss your plans with the local Code Enforcement officer.

Aroostook County
Content 3
Cumberland County

November 4, 2011


The Cumberland County Mapping project began in 2004 and preliminary maps and flood insurance study report were released for public review in 2009. Several coastal communities challenged the methodologies and resulting base flood elevations in the study. As a result the normal adoption process halted pending review of the appeals and the County wide study was carried over into FEMA’s new Risk MAP program.
In early 2010 the State Planning Office, Maine Emergency Management and County Emergency Management agency staff members helped organize two meetings providing Federal Emergency Management Agency staff with a venue for explaining the new Risk MAP program to community leaders. FEMA staff encouraged communities to draft Memorandums of Understanding (MOU) to serve as a basis for improving the relationship between FEMA and the communities and promoting a more cooperative approach to floodplain mapping in their communities.  These MOU’s are designed to foster communication and understanding between FEMA and the community. Information in the MOU does include what the town and FEMA are providing for resources to improve floodplain mapping in the community.
In September 2011 FEMA signed a task order with a contractor ( STARR, LLC) to continue the mapping process. The new mapping schedule proposes to:

  • Deliver new preliminary maps by             4/17/2013
  • Approve final maps by                           1/18/2014
  • Authorize an Effective map date of        7/17/2014
Franklin County
Content 5
Hancock County

Discovery for New Floodplain Mapping

Beginning in the October 2011 Floodplain Management Program staff will lead a process called Discovery to determine mapping needs in the county. Our goal is to reach as many individuals as possible who have an interest in floodplain mapping and engage at least one representative from each community.
The following list provides examples of the type of people we are hoping to engage.

  • State or regional groups with a vested interest in water resources (e.g., levee boards, regional partners, conservation districts, watershed/river basin commissions, etc.);
  • Geographic Information System (GIS) managers and specialists, community and regional planners, local and state water authorities, levee and dam owners, county land use departments, etc.;
  • Community and state emergency management officials such as county offices of emergency management, fire districts, fire departments, fire chiefs, etc.;
  • Building officials, local floodplain administrators, county and local engineering departments, highway departments, etc.;
  • Members of Tribal Communities, as defined through consultation and coordination with Tribal Officials (see Section 4.2);
  • Representatives of any other appropriate Non-Government Organizations (NGOs) (environmental groups, recreational groups, etc.);
  • Economic development and commerce representatives; and
  • Other key stakeholders as appropriate (e.g., developers, realtors, bankers, etc.).

It is important for community representatives to engage in a holistic view of flood risk management and mitigation of flood risk within their community.
Data Collection and Analysis
The types of information that will be collected include information about:

  • The community planning capabilities, and the timing and level of any needed technical assistance for mitigation planning;
  • The status of a local or Tribal Hazard Mitigation Plan;
  • Current storm water activities such as culvert or ditch cleaning;
  • Current outreach programs to residents about storm water issues;
  • Storm water Best Management Practices, programs for reducing flows, etc.;
  • Risk and flood study needs;
  • Flooding issues, historical flooding, and declared flood disasters;
  • Information regarding participation in the Community Rating System (CRS);
  • Actionable projects identified in the Hazard Mitigation Plan;
  • Community development plans and comprehensive plans;
  • Prior proactive mitigation actions and planning efforts resulting in reduced losses;
  • Interest in providing elevation data or pursuing partnership opportunities;
  • Information about community priorities in order to focus mitigation discussions through knowledge of what is important to the public;
  • Community-identified mitigation opportunities;
  • Regional or state information about communities and flooding within a watershed, such as information from Community Assistance Visits (CAVs);
  • Community correspondence, and other data that the FEMA Regional Office, State NFIP Coordinator, or SHMO possesses;
  • Information from OFAs, NGOs, and other watershed stakeholders; and
  • Data from the Mapping Information Platform (MIP), the FEMA library, etc.

Once this information is collected the Discovery Team will complete a thorough and thoughtful analysis of the data and information collected. This data and analysis will be compiled into a draft discovery report to facilitate preparations for the Discovery Meeting.
The goal here is to focus discussions on watershed characteristics, flood risk, flood hazard communications, hazard mitigation, and outreach. Communities may provide additional data and information at the meeting, and some data collection post-meeting may result from meeting discussions. However the focus of the Discovery Meeting will not be on data-collection.
Discovery Meeting
The objectives of the Discovery Meeting are to:

  • Introduce the project team to the communities, Tribes, and other officials with areas of influence within the watershed.
  • Review what the available data suggest about a watershed’s flood risk, confirm whether the information is accurate, and get watershed stakeholders’ perspectives about their flood risk. This will help determine whether a flood risk project is necessary and appropriate for the watershed.
  • Bring community and Tribal officials and other stakeholders in the watershed together to promote a better understanding of flood risk in the watershed so that informed risk management decisions can be made and so that a conversation on a watershed vision can be initiated with communities.
  • Introduce concepts/tools/techniques related to hazard identification, flood risk assessment, and mitigation planning.
  • Emphasize the importance of the community’s or Tribe’s responsibility in keeping the public informed of flood risks and the relevance of those risks, identifying the public as a stakeholder in the process.
  • Discuss and emphasize the importance of having a Hazard Mitigation Plan; how to prepare, maintain, and implement mitigation plans; and the importance of having an actionable mitigation strategy.
  • Discuss the tools FEMA can offer to help communities and Tribes communicate flood risk to the public, support communities and Tribes in their outreach efforts, and discuss the best way to communicate with community and Tribal officials, citizens, and other stakeholders.
  • Discuss possible flood risk project scope based on the draft Discovery Map, draft Discovery Report, and data and information collected.

Discovery Map
A draft Discovery Map will be created using the data and information collected during Discovery, and a final Discovery Map will be created to illustrate the decisions that were made at the Discovery Meeting. The draft Discovery Map will be provided to the communities and Tribes prior to the Discovery Meeting and presented at the Discovery Meeting as a facilitation tool.
Post Meeting Coordination
After the Discovery meeting the scope of any new studies will be prepared. Additional coordination will be required with those communities receiving new data to discuss anticipated changes in flood risk identified, depicted on floodplain maps and Flood Insurance Study reports.
In coordination with watershed stakeholders, the scope of the flood risk project will be refined, including a decision about the regulatory and/or non-regulatory products to be provided, the mitigation planning technical assistance that may be offered, and the communications and outreach assistance to be provided. This information will be documented in a Memorandum of Understanding to be developed in coordination with FEMA, communities and watershed stakeholders.
Time Frame for Completion
 The Discovery portion of the mapping project should be completed by May 31, 2012.

Kennebec County

Kennebec County floodplain maps have been finalized. The effective date of the new maps is June 16, 2011. The updating process did not include new floodplain studies. However many adjustments were made to update maps with existing information contained in neighboring communities.
Previous map updates were done on a community by community basis. This process led to situations where base flood elevations and floodplain delineations established on a stream or lake in one town not being reflected on maps of a neighboring town. By updating maps on a county wide basis these discrepancies were corrected.
For official floodplain information and permitting purposes you should always visit your local town office and discuss your plans with the local Code Enforcement officer.

Knox County

Discovery for New Floodplain Mapping

Beginning in the October 2011 Floodplain Management Program staff will lead a process called Discovery to determine mapping needs in the county. Our goal is to reach as many individuals as possible who have an interest in floodplain mapping and engage at least one representative from each community.
The following list provides examples of the type of people we are hoping to engage.

  • State or regional groups with a vested interest in water resources (e.g., levee boards, regional partners, conservation districts, watershed/river basin commissions, etc.);
  • Geographic Information System (GIS) managers and specialists, community and regional planners, local and state water authorities, levee and dam owners, county land use departments, etc.;
  • Community and state emergency management officials such as county offices of emergency management, fire districts, fire departments, fire chiefs, etc.;
  • Building officials, local floodplain administrators, county and local engineering departments, highway departments, etc.;
  • Members of Tribal Communities, as defined through consultation and coordination with Tribal Officials (see Section 4.2);
  • Representatives of any other appropriate Non-Government Organizations (NGOs) (environmental groups, recreational groups, etc.);
  • Economic development and commerce representatives; and
  • Other key stakeholders as appropriate (e.g., developers, realtors, bankers, etc.).

It is important for community representatives to engage in a holistic view of flood risk management and mitigation of flood risk within their community.
Data Collection and Analysis
The types of information that will be collected include information about:

  • The community planning capabilities, and the timing and level of any needed technical assistance for mitigation planning;
  • The status of a local or Tribal Hazard Mitigation Plan;
  • Current storm water activities such as culvert or ditch cleaning;
  • Current outreach programs to residents about storm water issues;
  • Storm water Best Management Practices, programs for reducing flows, etc.;
  • Risk and flood study needs;
  • Flooding issues, historical flooding, and declared flood disasters;
  • Information regarding participation in the Community Rating System (CRS);
  • Actionable projects identified in the Hazard Mitigation Plan;
  • Community development plans and comprehensive plans;
  • Prior proactive mitigation actions and planning efforts resulting in reduced losses;
  • Interest in providing elevation data or pursuing partnership opportunities;
  • Information about community priorities in order to focus mitigation discussions through knowledge of what is important to the public;
  • Community-identified mitigation opportunities;
  • Regional or state information about communities and flooding within a watershed, such as information from Community Assistance Visits (CAVs);
  • Community correspondence, and other data that the FEMA Regional Office, State NFIP Coordinator, or SHMO possesses;
  • Information from OFAs, NGOs, and other watershed stakeholders; and
  • Data from the Mapping Information Platform (MIP), the FEMA library, etc.

Once this information is collected the Discovery Team will complete a thorough and thoughtful analysis of the data and information collected. This data and analysis will be compiled into a draft discovery report to facilitate preparations for the Discovery Meeting.
The goal here is to focus discussions on watershed characteristics, flood risk, flood hazard communications, hazard mitigation, and outreach. Communities may provide additional data and information at the meeting, and some data collection post-meeting may result from meeting discussions. However the focus of the Discovery Meeting will not be on data-collection.
Discovery Meeting
The objectives of the Discovery Meeting are to:

  • Introduce the project team to the communities, Tribes, and other officials with areas of influence within the watershed.
  • Review what the available data suggest about a watershed’s flood risk, confirm whether the information is accurate, and get watershed stakeholders’ perspectives about their flood risk. This will help determine whether a flood risk project is necessary and appropriate for the watershed.
  • Bring community and Tribal officials and other stakeholders in the watershed together to promote a better understanding of flood risk in the watershed so that informed risk management decisions can be made and so that a conversation on a watershed vision can be initiated with communities.
  • Introduce concepts/tools/techniques related to hazard identification, flood risk assessment, and mitigation planning.
  • Emphasize the importance of the community’s or Tribe’s responsibility in keeping the public informed of flood risks and the relevance of those risks, identifying the public as a stakeholder in the process.
  • Discuss and emphasize the importance of having a Hazard Mitigation Plan; how to prepare, maintain, and implement mitigation plans; and the importance of having an actionable mitigation strategy.
  • Discuss the tools FEMA can offer to help communities and Tribes communicate flood risk to the public, support communities and Tribes in their outreach efforts, and discuss the best way to communicate with community and Tribal officials, citizens, and other stakeholders.
  • Discuss possible flood risk project scope based on the draft Discovery Map, draft Discovery Report, and data and information collected.

Discovery Map
A draft Discovery Map will be created using the data and information collected during Discovery, and a final Discovery Map will be created to illustrate the decisions that were made at the Discovery Meeting. The draft Discovery Map will be provided to the communities and Tribes prior to the Discovery Meeting and presented at the Discovery Meeting as a facilitation tool.
Post Meeting Coordination
After the Discovery meeting the scope of any new studies will be prepared. Additional coordination will be required with those communities receiving new data to discuss anticipated changes in flood risk identified, depicted on floodplain maps and Flood Insurance Study reports.
In coordination with watershed stakeholders, the scope of the flood risk project will be refined, including a decision about the regulatory and/or non-regulatory products to be provided, the mitigation planning technical assistance that may be offered, and the communications and outreach assistance to be provided. This information will be documented in a Memorandum of Understanding to be developed in coordination with FEMA, communities and watershed stakeholders.
Time Frame for Completion
 The Discovery portion of the mapping project should be completed by May 31, 2012.

Lincoln County

Discovery for New Floodplain Mapping

Beginning in the October 2011 Floodplain Management Program staff will lead a process called Discovery to determine mapping needs in the county. Our goal is to reach as many individuals as possible who have an interest in floodplain mapping and engage at least one representative from each community.
The following list provides examples of the type of people we are hoping to engage.

  • State or regional groups with a vested interest in water resources (e.g., levee boards, regional partners, conservation districts, watershed/river basin commissions, etc.);
  • Geographic Information System (GIS) managers and specialists, community and regional planners, local and state water authorities, levee and dam owners, county land use departments, etc.;
  • Community and state emergency management officials such as county offices of emergency management, fire districts, fire departments, fire chiefs, etc.;
  • Building officials, local floodplain administrators, county and local engineering departments, highway departments, etc.;
  • Members of Tribal Communities, as defined through consultation and coordination with Tribal Officials (see Section 4.2);
  • Representatives of any other appropriate Non-Government Organizations (NGOs) (environmental groups, recreational groups, etc.);
  • Economic development and commerce representatives; and
  • Other key stakeholders as appropriate (e.g., developers, realtors, bankers, etc.).

It is important for community representatives to engage in a holistic view of flood risk management and mitigation of flood risk within their community.
Data Collection and Analysis
The types of information that will be collected include information about:

  • The community planning capabilities, and the timing and level of any needed technical assistance for mitigation planning;
  • The status of a local or Tribal Hazard Mitigation Plan;
  • Current storm water activities such as culvert or ditch cleaning;
  • Current outreach programs to residents about storm water issues;
  • Storm water Best Management Practices, programs for reducing flows, etc.;
  • Risk and flood study needs;
  • Flooding issues, historical flooding, and declared flood disasters;
  • Information regarding participation in the Community Rating System (CRS);
  • Actionable projects identified in the Hazard Mitigation Plan;
  • Community development plans and comprehensive plans;
  • Prior proactive mitigation actions and planning efforts resulting in reduced losses;
  • Interest in providing elevation data or pursuing partnership opportunities;
  • Information about community priorities in order to focus mitigation discussions through knowledge of what is important to the public;
  • Community-identified mitigation opportunities;
  • Regional or state information about communities and flooding within a watershed, such as information from Community Assistance Visits (CAVs);
  • Community correspondence, and other data that the FEMA Regional Office, State NFIP Coordinator, or SHMO possesses;
  • Information from OFAs, NGOs, and other watershed stakeholders; and
  • Data from the Mapping Information Platform (MIP), the FEMA library, etc.

Once this information is collected the Discovery Team will complete a thorough and thoughtful analysis of the data and information collected. This data and analysis will be compiled into a draft discovery report to facilitate preparations for the Discovery Meeting.
The goal here is to focus discussions on watershed characteristics, flood risk, flood hazard communications, hazard mitigation, and outreach. Communities may provide additional data and information at the meeting, and some data collection post-meeting may result from meeting discussions. However the focus of the Discovery Meeting will not be on data-collection.
Discovery Meeting
The objectives of the Discovery Meeting are to:

  • Introduce the project team to the communities, Tribes, and other officials with areas of influence within the watershed.
  • Review what the available data suggest about a watershed’s flood risk, confirm whether the information is accurate, and get watershed stakeholders’ perspectives about their flood risk. This will help determine whether a flood risk project is necessary and appropriate for the watershed.
  • Bring community and Tribal officials and other stakeholders in the watershed together to promote a better understanding of flood risk in the watershed so that informed risk management decisions can be made and so that a conversation on a watershed vision can be initiated with communities.
  • Introduce concepts/tools/techniques related to hazard identification, flood risk assessment, and mitigation planning.
  • Emphasize the importance of the community’s or Tribe’s responsibility in keeping the public informed of flood risks and the relevance of those risks, identifying the public as a stakeholder in the process.
  • Discuss and emphasize the importance of having a Hazard Mitigation Plan; how to prepare, maintain, and implement mitigation plans; and the importance of having an actionable mitigation strategy.
  • Discuss the tools FEMA can offer to help communities and Tribes communicate flood risk to the public, support communities and Tribes in their outreach efforts, and discuss the best way to communicate with community and Tribal officials, citizens, and other stakeholders.
  • Discuss possible flood risk project scope based on the draft Discovery Map, draft Discovery Report, and data and information collected.

Discovery Map
A draft Discovery Map will be created using the data and information collected during Discovery, and a final Discovery Map will be created to illustrate the decisions that were made at the Discovery Meeting. The draft Discovery Map will be provided to the communities and Tribes prior to the Discovery Meeting and presented at the Discovery Meeting as a facilitation tool.
Post Meeting Coordination
After the Discovery meeting the scope of any new studies will be prepared. Additional coordination will be required with those communities receiving new data to discuss anticipated changes in flood risk identified, depicted on floodplain maps and Flood Insurance Study reports.
In coordination with watershed stakeholders, the scope of the flood risk project will be refined, including a decision about the regulatory and/or non-regulatory products to be provided, the mitigation planning technical assistance that may be offered, and the communications and outreach assistance to be provided. This information will be documented in a Memorandum of Understanding to be developed in coordination with FEMA, communities and watershed stakeholders.
Time Frame for Completion
 The Discovery portion of the mapping project should be completed by May 31, 2012.

Oxford County

Oxford was the first county in Maine to have digitized maps available on line. Floodplain maps can be found on the FEMA web site or you can view paper copies in your local town office.

The maps became effective on July 7th 2009. New Base Flood Elevations (BFE) were established in four communities, Bethel, Hiram, Otisfield and Paris.

Communities with GIS capabilities can obtain floodplain data in digital form to use with other community mapping data to produce more informative maps.

If you are familiar with Google Earth and use that program you can link to the FEMA maps and display floodplain maps on Google Earth Platform. Instructions on how to do this can be found on the FEMA mapping information platform at this location.

For official floodplain information and permitting purposes you should always visit your local town office and discuss your plans with the local Code Enforcement officer.

Penobscot County
Content 10
Piscataquis County
Content 11
Sagadahoc County

Discovery for New Floodplain Mapping

Beginning in the October 2011 Floodplain Management Program staff will lead a process called Discovery to determine mapping needs in the county. Our goal is to reach as many individuals as possible who have an interest in floodplain mapping and engage at least one representative from each community.
The following list provides examples of the type of people we are hoping to engage.

  • State or regional groups with a vested interest in water resources (e.g., levee boards, regional partners, conservation districts, watershed/river basin commissions, etc.);
  • Geographic Information System (GIS) managers and specialists, community and regional planners, local and state water authorities, levee and dam owners, county land use departments, etc.;
  • Community and state emergency management officials such as county offices of emergency management, fire districts, fire departments, fire chiefs, etc.;
  • Building officials, local floodplain administrators, county and local engineering departments, highway departments, etc.;
  • Members of Tribal Communities, as defined through consultation and coordination with Tribal Officials (see Section 4.2);
  • Representatives of any other appropriate Non-Government Organizations (NGOs) (environmental groups, recreational groups, etc.);
  • Economic development and commerce representatives; and
  • Other key stakeholders as appropriate (e.g., developers, realtors, bankers, etc.).

It is important for community representatives to engage in a holistic view of flood risk management and mitigation of flood risk within their community.
Data Collection and Analysis
The types of information that will be collected include information about:

  • The community planning capabilities, and the timing and level of any needed technical assistance for mitigation planning;
  • The status of a local or Tribal Hazard Mitigation Plan;
  • Current storm water activities such as culvert or ditch cleaning;
  • Current outreach programs to residents about storm water issues;
  • Storm water Best Management Practices, programs for reducing flows, etc.;
  • Risk and flood study needs;
  • Flooding issues, historical flooding, and declared flood disasters;
  • Information regarding participation in the Community Rating System (CRS);
  • Actionable projects identified in the Hazard Mitigation Plan;
  • Community development plans and comprehensive plans;
  • Prior proactive mitigation actions and planning efforts resulting in reduced losses;
  • Interest in providing elevation data or pursuing partnership opportunities;
  • Information about community priorities in order to focus mitigation discussions through knowledge of what is important to the public;
  • Community-identified mitigation opportunities;
  • Regional or state information about communities and flooding within a watershed, such as information from Community Assistance Visits (CAVs);
  • Community correspondence, and other data that the FEMA Regional Office, State NFIP Coordinator, or SHMO possesses;
  • Information from OFAs, NGOs, and other watershed stakeholders; and
  • Data from the Mapping Information Platform (MIP), the FEMA library, etc.

Once this information is collected the Discovery Team will complete a thorough and thoughtful analysis of the data and information collected. This data and analysis will be compiled into a draft discovery report to facilitate preparations for the Discovery Meeting.
The goal here is to focus discussions on watershed characteristics, flood risk, flood hazard communications, hazard mitigation, and outreach. Communities may provide additional data and information at the meeting, and some data collection post-meeting may result from meeting discussions. However the focus of the Discovery Meeting will not be on data-collection.
Discovery Meeting
The objectives of the Discovery Meeting are to:

  • Introduce the project team to the communities, Tribes, and other officials with areas of influence within the watershed.
  • Review what the available data suggest about a watershed’s flood risk, confirm whether the information is accurate, and get watershed stakeholders’ perspectives about their flood risk. This will help determine whether a flood risk project is necessary and appropriate for the watershed.
  • Bring community and Tribal officials and other stakeholders in the watershed together to promote a better understanding of flood risk in the watershed so that informed risk management decisions can be made and so that a conversation on a watershed vision can be initiated with communities.
  • Introduce concepts/tools/techniques related to hazard identification, flood risk assessment, and mitigation planning.
  • Emphasize the importance of the community’s or Tribe’s responsibility in keeping the public informed of flood risks and the relevance of those risks, identifying the public as a stakeholder in the process.
  • Discuss and emphasize the importance of having a Hazard Mitigation Plan; how to prepare, maintain, and implement mitigation plans; and the importance of having an actionable mitigation strategy.
  • Discuss the tools FEMA can offer to help communities and Tribes communicate flood risk to the public, support communities and Tribes in their outreach efforts, and discuss the best way to communicate with community and Tribal officials, citizens, and other stakeholders.
  • Discuss possible flood risk project scope based on the draft Discovery Map, draft Discovery Report, and data and information collected.

Discovery Map
A draft Discovery Map will be created using the data and information collected during Discovery, and a final Discovery Map will be created to illustrate the decisions that were made at the Discovery Meeting. The draft Discovery Map will be provided to the communities and Tribes prior to the Discovery Meeting and presented at the Discovery Meeting as a facilitation tool.
Post Meeting Coordination
After the Discovery meeting the scope of any new studies will be prepared. Additional coordination will be required with those communities receiving new data to discuss anticipated changes in flood risk identified, depicted on floodplain maps and Flood Insurance Study reports.
In coordination with watershed stakeholders, the scope of the flood risk project will be refined, including a decision about the regulatory and/or non-regulatory products to be provided, the mitigation planning technical assistance that may be offered, and the communications and outreach assistance to be provided. This information will be documented in a Memorandum of Understanding to be developed in coordination with FEMA, communities and watershed stakeholders.
Time Frame for Completion
 The Discovery portion of the mapping project should be completed by May 31, 2012.

Somerset County
Content 13
Waldo County

Discovery for New Floodplain Mapping

Beginning in the October 2011 Floodplain Management Program staff will lead a process called Discovery to determine mapping needs in the county. Our goal is to reach as many individuals as possible who have an interest in floodplain mapping and engage at least one representative from each community.
The following list provides examples of the type of people we are hoping to engage.

  • State or regional groups with a vested interest in water resources (e.g., levee boards, regional partners, conservation districts, watershed/river basin commissions, etc.);
  • Geographic Information System (GIS) managers and specialists, community and regional planners, local and state water authorities, levee and dam owners, county land use departments, etc.;
  • Community and state emergency management officials such as county offices of emergency management, fire districts, fire departments, fire chiefs, etc.;
  • Building officials, local floodplain administrators, county and local engineering departments, highway departments, etc.;
  • Members of Tribal Communities, as defined through consultation and coordination with Tribal Officials (see Section 4.2);
  • Representatives of any other appropriate Non-Government Organizations (NGOs) (environmental groups, recreational groups, etc.);
  • Economic development and commerce representatives; and
  • Other key stakeholders as appropriate (e.g., developers, realtors, bankers, etc.).

It is important for community representatives to engage in a holistic view of flood risk management and mitigation of flood risk within their community.
Data Collection and Analysis
The types of information that will be collected include information about:

  • The community planning capabilities, and the timing and level of any needed technical assistance for mitigation planning;
  • The status of a local or Tribal Hazard Mitigation Plan;
  • Current storm water activities such as culvert or ditch cleaning;
  • Current outreach programs to residents about storm water issues;
  • Storm water Best Management Practices, programs for reducing flows, etc.;
  • Risk and flood study needs;
  • Flooding issues, historical flooding, and declared flood disasters;
  • Information regarding participation in the Community Rating System (CRS);
  • Actionable projects identified in the Hazard Mitigation Plan;
  • Community development plans and comprehensive plans;
  • Prior proactive mitigation actions and planning efforts resulting in reduced losses;
  • Interest in providing elevation data or pursuing partnership opportunities;
  • Information about community priorities in order to focus mitigation discussions through knowledge of what is important to the public;
  • Community-identified mitigation opportunities;
  • Regional or state information about communities and flooding within a watershed, such as information from Community Assistance Visits (CAVs);
  • Community correspondence, and other data that the FEMA Regional Office, State NFIP Coordinator, or SHMO possesses;
  • Information from OFAs, NGOs, and other watershed stakeholders; and
  • Data from the Mapping Information Platform (MIP), the FEMA library, etc.

Once this information is collected the Discovery Team will complete a thorough and thoughtful analysis of the data and information collected. This data and analysis will be compiled into a draft discovery report to facilitate preparations for the Discovery Meeting.
The goal here is to focus discussions on watershed characteristics, flood risk, flood hazard communications, hazard mitigation, and outreach. Communities may provide additional data and information at the meeting, and some data collection post-meeting may result from meeting discussions. However the focus of the Discovery Meeting will not be on data-collection.
Discovery Meeting
The objectives of the Discovery Meeting are to:

  • Introduce the project team to the communities, Tribes, and other officials with areas of influence within the watershed.
  • Review what the available data suggest about a watershed’s flood risk, confirm whether the information is accurate, and get watershed stakeholders’ perspectives about their flood risk. This will help determine whether a flood risk project is necessary and appropriate for the watershed.
  • Bring community and Tribal officials and other stakeholders in the watershed together to promote a better understanding of flood risk in the watershed so that informed risk management decisions can be made and so that a conversation on a watershed vision can be initiated with communities.
  • Introduce concepts/tools/techniques related to hazard identification, flood risk assessment, and mitigation planning.
  • Emphasize the importance of the community’s or Tribe’s responsibility in keeping the public informed of flood risks and the relevance of those risks, identifying the public as a stakeholder in the process.
  • Discuss and emphasize the importance of having a Hazard Mitigation Plan; how to prepare, maintain, and implement mitigation plans; and the importance of having an actionable mitigation strategy.
  • Discuss the tools FEMA can offer to help communities and Tribes communicate flood risk to the public, support communities and Tribes in their outreach efforts, and discuss the best way to communicate with community and Tribal officials, citizens, and other stakeholders.
  • Discuss possible flood risk project scope based on the draft Discovery Map, draft Discovery Report, and data and information collected.

Discovery Map
A draft Discovery Map will be created using the data and information collected during Discovery, and a final Discovery Map will be created to illustrate the decisions that were made at the Discovery Meeting. The draft Discovery Map will be provided to the communities and Tribes prior to the Discovery Meeting and presented at the Discovery Meeting as a facilitation tool.
Post Meeting Coordination
After the Discovery meeting the scope of any new studies will be prepared. Additional coordination will be required with those communities receiving new data to discuss anticipated changes in flood risk identified, depicted on floodplain maps and Flood Insurance Study reports.
In coordination with watershed stakeholders, the scope of the flood risk project will be refined, including a decision about the regulatory and/or non-regulatory products to be provided, the mitigation planning technical assistance that may be offered, and the communications and outreach assistance to be provided. This information will be documented in a Memorandum of Understanding to be developed in coordination with FEMA, communities and watershed stakeholders.
Time Frame for Completion
 The Discovery portion of the mapping project should be completed by May 31, 2012.

Washington County

Discovery for New Floodplain Mapping

Beginning in the October 2011 Floodplain Management Program staff will lead a process called Discovery to determine mapping needs in the county. Our goal is to reach as many individuals as possible who have an interest in floodplain mapping and engage at least one representative from each community.
The following list provides examples of the type of people we are hoping to engage.

  • State or regional groups with a vested interest in water resources (e.g., levee boards, regional partners, conservation districts, watershed/river basin commissions, etc.);
  • Geographic Information System (GIS) managers and specialists, community and regional planners, local and state water authorities, levee and dam owners, county land use departments, etc.;
  • Community and state emergency management officials such as county offices of emergency management, fire districts, fire departments, fire chiefs, etc.;
  • Building officials, local floodplain administrators, county and local engineering departments, highway departments, etc.;
  • Members of Tribal Communities, as defined through consultation and coordination with Tribal Officials (see Section 4.2);
  • Representatives of any other appropriate Non-Government Organizations (NGOs) (environmental groups, recreational groups, etc.);
  • Economic development and commerce representatives; and
  • Other key stakeholders as appropriate (e.g., developers, realtors, bankers, etc.).

It is important for community representatives to engage in a holistic view of flood risk management and mitigation of flood risk within their community.
Data Collection and Analysis
The types of information that will be collected include information about:

  • The community planning capabilities, and the timing and level of any needed technical assistance for mitigation planning;
  • The status of a local or Tribal Hazard Mitigation Plan;
  • Current storm water activities such as culvert or ditch cleaning;
  • Current outreach programs to residents about storm water issues;
  • Storm water Best Management Practices, programs for reducing flows, etc.;
  • Risk and flood study needs;
  • Flooding issues, historical flooding, and declared flood disasters;
  • Information regarding participation in the Community Rating System (CRS);
  • Actionable projects identified in the Hazard Mitigation Plan;
  • Community development plans and comprehensive plans;
  • Prior proactive mitigation actions and planning efforts resulting in reduced losses;
  • Interest in providing elevation data or pursuing partnership opportunities;
  • Information about community priorities in order to focus mitigation discussions through knowledge of what is important to the public;
  • Community-identified mitigation opportunities;
  • Regional or state information about communities and flooding within a watershed, such as information from Community Assistance Visits (CAVs);
  • Community correspondence, and other data that the FEMA Regional Office, State NFIP Coordinator, or SHMO possesses;
  • Information from OFAs, NGOs, and other watershed stakeholders; and
  • Data from the Mapping Information Platform (MIP), the FEMA library, etc.

Once this information is collected the Discovery Team will complete a thorough and thoughtful analysis of the data and information collected. This data and analysis will be compiled into a draft discovery report to facilitate preparations for the Discovery Meeting.
The goal here is to focus discussions on watershed characteristics, flood risk, flood hazard communications, hazard mitigation, and outreach. Communities may provide additional data and information at the meeting, and some data collection post-meeting may result from meeting discussions. However the focus of the Discovery Meeting will not be on data-collection.
Discovery Meeting
The objectives of the Discovery Meeting are to:

  • Introduce the project team to the communities, Tribes, and other officials with areas of influence within the watershed.
  • Review what the available data suggest about a watershed’s flood risk, confirm whether the information is accurate, and get watershed stakeholders’ perspectives about their flood risk. This will help determine whether a flood risk project is necessary and appropriate for the watershed.
  • Bring community and Tribal officials and other stakeholders in the watershed together to promote a better understanding of flood risk in the watershed so that informed risk management decisions can be made and so that a conversation on a watershed vision can be initiated with communities.
  • Introduce concepts/tools/techniques related to hazard identification, flood risk assessment, and mitigation planning.
  • Emphasize the importance of the community’s or Tribe’s responsibility in keeping the public informed of flood risks and the relevance of those risks, identifying the public as a stakeholder in the process.
  • Discuss and emphasize the importance of having a Hazard Mitigation Plan; how to prepare, maintain, and implement mitigation plans; and the importance of having an actionable mitigation strategy.
  • Discuss the tools FEMA can offer to help communities and Tribes communicate flood risk to the public, support communities and Tribes in their outreach efforts, and discuss the best way to communicate with community and Tribal officials, citizens, and other stakeholders.
  • Discuss possible flood risk project scope based on the draft Discovery Map, draft Discovery Report, and data and information collected.

Discovery Map
A draft Discovery Map will be created using the data and information collected during Discovery, and a final Discovery Map will be created to illustrate the decisions that were made at the Discovery Meeting. The draft Discovery Map will be provided to the communities and Tribes prior to the Discovery Meeting and presented at the Discovery Meeting as a facilitation tool.
Post Meeting Coordination
After the Discovery meeting the scope of any new studies will be prepared. Additional coordination will be required with those communities receiving new data to discuss anticipated changes in flood risk identified, depicted on floodplain maps and Flood Insurance Study reports.
In coordination with watershed stakeholders, the scope of the flood risk project will be refined, including a decision about the regulatory and/or non-regulatory products to be provided, the mitigation planning technical assistance that may be offered, and the communications and outreach assistance to be provided. This information will be documented in a Memorandum of Understanding to be developed in coordination with FEMA, communities and watershed stakeholders.
Time Frame for Completion
 The Discovery portion of the mapping project should be completed by May 31, 2012.

York County

November 4, 2011


Preliminary maps and flood insurance study report were released for public review in 2009. Several coastal communities challenged the methodologies and resulting base flood elevations in the study. As a result the normal adoption process halted pending review of the appeals and the County wide study was carried over into FEMA’s new Risk MAP program.
In early 2010 the State Planning Office, Maine Emergency Management and County Emergency Management agency staff members helped organize two meetings providing Federal Emergency Management Agency staff with a venue for explaining the new Risk MAP program to community leaders. FEMA staff encouraged communities to draft Memorandums of Understanding (MOU) to serve as a basis for improving the relationship between FEMA and the communities and promoting a more cooperative approach to floodplain mapping in their communities.  These MOU’s are designed to foster communication and understanding between FEMA and the community. Information in the MOU does include what the town and FEMA are providing for resources to improve floodplain mapping in the community.
In September 2011 FEMA signed a task order with a contractor (STARR, LLC) to continue the mapping process. The new mapping schedule proposes to:

  • Deliver new preliminary maps by             3/30/2013
  • Approve final maps by                          12/18/2013
  • Authorize an Effective map date of        6/16/2014

 

June 2008

Scoping to determine the extent of mapping needs was completed in March of 2005. Since then work has continued in developing new ortho photo base maps and acquiring LiDAR (Link to description of LiDAR) topographic data for the coastal sections of the county of all communities from South Berwick to Old Orchard Beach, York County LiDAR Map. With this new data new hydraulic and hydrological analysis will be done in the coastal sections of towns of Kittery, Ogunquit, Kennebunk, Kennebunkport, Biddeford and Old Orchard Beach during the spring and summer of 2008. New floodplain maps will be developed for these communities and it is expected that there may be significantly higher base flood elevations determined from the new models.
Preliminary maps are expected to be available near the end of 2008 or beginning of 2009 with a projected completion of the Map Adoption process in 2010.
The Maine Geological Survey has been doing coastal erosion studies in southern Maine that provide provocative and interesting analysis of potential flooding changes based on rising sea levels predicted to occur as a result of global warming.

 

 

Challenges to Good Floodplain Mapping

Good Elevation Data

Floodplains are called that because they tend to be wide and relatively flat. When the river floods it spreads out and inundates a large area. Depth of water is measured in feet and may be as much as 30 feet above the normal high water mark of the river or stream. So when mapping a flood plain it is important to be able to determine land elevations very accurately.

The problem here in Maine is that for most of the State elevation data has not been remapped since the 1920’s when the United States Geological Survey completed a nation wide survey to determine elevations. Most of the maps show topographic elevations in terms of 10 or 20 feet increments. Consequently it is impossible to delineate floodplain boundaries that generally fall within a range of a few feet accurately.

Cost

The process of creating completely new Floodplain maps is incredibly costly, time consuming and complex. Google Earth and other similar programs lure you into the impression that it is mere childs play to create simple easy to use maps.

Creating new digital floodplain maps is neither simple nor easy. Even the shortened process of upgrading existing floodplain maps to overlay new ortho-photo base maps is an expensive time consuming process that requires a significant amount of time and effort. Even with the increased funding FEMA has received for upgrading the nations floodplain maps it is insufficient to correct all the known shortcomings.

This process requires building new maps with several layers of information and integrating huge databases of supporting documentation. Each layer must be registered to the new base map and go through a rigorous quality analysis and control process to ensure that the databases have been accurately compiled, before it is stored on the FEMA mapping information platform. In addition because the various layers of information are mapped at different scales each layer must be electronically manipulated to fit as closely as possible to the base map.

Just this relatively simple process will cost over $2,000 per floodplain panel and in Maine with over 1800 map panels the total cost of just converting to digital be over 3.5 million dollars. This does not include any additional funding for new topography, hydraulic, hydrological analysis or re-delineation of floodplain boundaries. Early estimates of costs for new high resolution topographical data come in at approximately 5 million dollars and completing new hydrological and hydraulic data to cover areas that have been mapped with only approximate studies have not been estimated with any degree of accuracy but would undoubtedly run into the millions of dollars also.

Sadly until we can obtain high resolution topography more accurate floodplain maps will be hard to come by.

If you would like to learn more about estimating mapping values FEMA publishes a Blue Book that establishes values of products provided by out side agencies that can be used in developing floodplain maps.