- Floodplain Information | Public Works

The Engineering Division is responsible for the maintenance and enforcement of the City's floodplain and floodway ordinances as mandated by the Federal Emergency Management Agency's (FEMA) National Flood Insurance Program (NFIP). The City Engineer operates in the capacity of the Floodplain Administrator.

***NEW*** Effective April 02, 2012, the City of Conroe will no longer provide Floodplain Letters of Determination. You may contact a licensed surveyor for information on obtaining an Elevation Certificate or Floodplain Certification.

Since Conroe participates in FEMA's NFIP, you are entitled to a premium discount. For more information on federal insurance and the premium discount, call your insurance company and refer them to this webpage or our annual Floodplain and Outreach Notices. Planning early is essential because it normally takes 30 days after purchase for a flood insurance policy to go into effect.

The 100-year floodplain is the land that will be covered by the 100-year flood. The 100-year flood is a standard used by the NFIP for floodplain management and to determine the need for flood insurance.

The term "100-year flood" is misleading. It is not the flood that will occur once every 100 years. Rather, it is the flood elevation that has a 1% chance of being equaled or exceeded each year. Thus, the 100-year flood could occur more than once in a relatively short period of time.

Please be aware that people outside of the 100-year floodplain are free of regulatory requirements, but not of risk. Federally-backed flood insurance also is available to people outside of the 100-year flood zone.

We are confident that the resources on this page and others will help you stay Flood Smart!

The Federal Emergency Management Agency (FEMA) publishes maps, called Flood Insurance Rate Maps (FIRMs). The purpose of a FIRM is to show the areas in our community that have a 1% or greater chance of flooding in any given year, known as Special Flood Hazard Areas (SFHAs). FIRMs are the result of engineering studies that are performed by engineering companies, federal agencies, or the community and are reviewed and approved by FEMA.

The Department of Homeland Security's Federal Emergency Management Agency (FEMA) has undertaken an initiative to modernize National Flood Insurance Program (NFIP) maps nationwide. As part of the Map Modernization initiative, FEMA prepared Preliminary copies of the Digital Flood Insurance Rate Map (DFIRM) and Flood Insurance Study (FIS) report for Montgomery County, Texas and its Incorporated Areas dated September 23, 2008 for review and comment. fema_panel index

The review period provides community officials and citizens in the affected communities with an opportunity to correct or add to the non-technical information presented on the Preliminary dFIRM and FIS report, including the configuration and labeling of physical features such as roads within or adjacent to the Special Flood Hazard Areas (SFHA), bridges, and streams, prior to the formal statutory 90-day appeal period for any new or modified BFEs that were identified.

Although FEMA uses the most accurate flood hazard information available, limitations of scale or accuracy of topographic information used to prepare the FIRM may cause small areas that are at or above the flood elevation to be inadvertently shown within the SFHA boundaries. Also, the placement of fill may elevate small areas within the SFHA boundaries to an elevation at or above the flood elevation. When this happens, structures or parcels of land may be inadvertently included in the SFHA on the FIRM.

If you believe your home or business is not located in a SFHA, as shown on the Flood Insurance Rate Maps (FIRM) and would like FEMA to make an official determination regarding the location of your property relative to the SFHA, you may request a Letter of Map Amendment (LOMA) or a Letter of Map Revision Based on Fill (LOMR-F). LOMAs and LOMR-Fs are documents issued by FEMA that officially remove a property and/or structure from the SFHA. To obtain a LOMA or LOMR-F, the applicant must submit mapping and survey data for the property. In most cases, the applicant will need to hire a land surveyor to prepare an Elevation Certificate for the property.

The issuance of a LOMA or LOMR-F eliminates the federal flood insurance purchase requirement as a condition of federal or federally backed financing. However, the mortgage lender retains the prerogative to require flood insurance as a condition of providing financing, regardless of the location of the structure.

FloodSmart.gov is a great NFIP resource for information about flood preparedness and flood insurance

Test the Waters - Try this interactive flood test.

What's Your Flood Risk? - Rate your risk, estimate your premiums

How to Buy Flood Insurance

The Lake Conroe Division of the San Jacinto River Authority (SJRA) operates the Lake Conroe Dam. On their site you can find links to local weather information as well as current lake conditions.

In addition to operating the lake, SJRA handles other regulatory activites for sewage systems and boating facilities around Lake Conroe. Check out their website for more information

Texas Commission on Environmental Quality (TCEQ) monitors and regulates both private and public dams in Texas. The program periodically inspects dams that pose a high or significant hazard and makes recommendations and reports to dam owners to help them maintain safe facilities. You can follow the above link to find more information on Texas regulations on dams and manuals on dam safety.

"Promote the reduction

of flood losses and encourage

the protection and enhancement

of natural floodways."

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Be Prepared!

Be Informed!

Be Aware!

Be Alert!

Be Safe!