Department of Water Resources


Flood Hazard Mapping

BAKER AECOM is FEMA's mapping contractor for Nevada's Flood Map Modernization. Baker's Website has County-specific pages regarding mapping project status, dates and timelines.
• Any preliminary Flood Insurance Study (FIS)
Preliminary Digital Flood Insurance Rate Map (DFIRM) Database
• Scoping map
• Meeting information
FEMA has compiled answers to Frequently Asked Questions for 4 different groups:
• Homeowners
• Engineers, surveyors, and Architects
• Insurers and Lenders
• Floodplain Managers
FEMA's Map Service Center is the launching point to most of the different "map viewers" and map data. Information on the National Flood Hazard Layer, Web Map Service in Google Earth, and FIRMette Tutorial can also be found on this page. There are many choices here, but here are some of the map choices.
Flood Maps search by state, county; PDF downloads for each panel
• FIRMettes legal map document created from portion of map for a specific area
• DFIRM Databases GIS data
• MapViewer on the Web, interactive map with layer controls
• Documents, Publications & Forms
FEMA's Map Service Center Product Catalog offers much of the same information as FEMA's Map Service Center main page, but organized differently.
• Links to Historic Flood Insurance Rate Maps (FIRMs)
• Effective FIRMs
• Future FIRMs are listed at the top of this site.
• Many other links
FEMA's Mapping Information Platform web page has Tips & Tutorials for different facets of the National Flood Insurance Program (NFIP). The tutorials cover a wide range of knowledge, from basic map reading to specialized hydraulic software and here is a small list:
• LOMA/LOMR-F letter of map amendment, -and based on fill material
• Introduction to GIS
• How to Read a FIRM
• How to Read a Flood Insurance Study
• National Flood Frequency
FEMA's user guides and documentation web page contains user guides and documentation web page contains the eLOMA Desktop Reference. This eLOMA training power point presentation is intended to familiarize the user with the screens in the eLOMA tool. It also provides instruction on the requirements and formatting for data entered in certain fields
Vertical Datum: New Mapping Studies Convert to Updated Vertical Datum
FEMA's Form's Room contains a list of common forms by name and has a description of each form.
• National Flood Insurance Program Elevation Certificate and Instructions
• Flood Insurance Floodproofing Certificate
• MT-EZ Form: Application Form for Single Residential Lot or Structure Amendments to National Flood Insurance Program (NFIP) Maps
• MT-1 Application Forms and Instructions Application Forms for Conditional Letters of Map Amendment (CLOMAs), Final Letters of Map Amendment (LOMAs), Letters of Map Revision Based on Fill (LOMR-Fs), and Conditional Letters of Map Revision Based on Fill (CLOMR-Fs)
• MT-2 Application Forms and Instructions Application Forms for Conditional Letters of Map Revision (CLOMR) and Letters of Map Revision (LOMRs) (For all LOMR, CLOMR, and Physical Map Requests)
FEMA's Outreach Materials for Local Officials contains resources you can use to effectively describe the process and its effect on your constituents. Items can be used for presentations to property owners and stakeholder groups at local and regional events to help educate members of your community about the mapping process. Also, series of media materials - including press advisories, releases and backgrounders will prove invaluable as you inform local press outlets about the implications of the upcoming map changes.
• Fact Sheet Talking Points
• Frequently Asked Questions (FAQs)
• New Flood Hazard Maps Brochure
• Notification Letters to Property Owners
• Newsletter Articles
• Booth Panels for Town Hall Meetings
• Bookmarks for Public Meetings
• Media Advisory
• Press Release
• Public Service Announcement Radio Scripts
• Media Backgrounder
• Editorial Board Power Point Presentation
• Hillsborough "Fast Flood Facts" Sheet
• Blank Fact Sheet Template
• Power Point Presentation Template
DATUMS & BENCHMARKS used in the mapping process can be retrieved by state, then county, from the National Geodetic Survey (NGS). The Help Button contains useful information on the acronyms used in the listing of the stations in the datasheets. Some of the information on the data sheet for each point:
• Current/ non-current Survey Control
• Datum for horizontal and vertical values
• Position (horizontal and vertical)
• History of monument
• Station Description