12/13/2023 0 Comments Awa plant in laie hawaiiThe known low risk zones (less than 1% flood risk each year): 2. Maui County locations: There is a tiny parcel of D on the westernmost edge of Moloka’i.Oahu locations: Since this is the most common zone, it occurs in many spots, but most notably in Hawaii Kai, Ewa Beach, Pearl City, Aiea, and Waipahu.Next, on physical examination of the property, it is a good idea to look for telltale signs of past floods, including ring-marks at the base of the house that indicate mineral deposits from a flood, or smooth or ripples areas in the pavement that indicate water has flowed through the area. For a property like this, the best option is to first tap into local knowledge regarding whether there have been past floods. This is probably the biggest flood zone in the state. This isn’t a Special Flood Hazard Zone, so it is generally not subject to the higher flood insurance rates, but it doesn’t mean it will not have a flood risk. This refers to any area which simply hasn’t been mapped for flood hazards. Joey’s Hawai’i Flood Zone Guide The unmapped zone: 1. If you have questions about rainfall flood zones, site selection, or other data-driven real estate questions, please feel free to reach out to me: However, if you want information about a particular island or a particular neighborhood, please reach out to me personally and I will be glad to assist you. I have lived on both Oahu and Maui, so this guide talks more about these places than the other islands. However, this guide is pretty technical because flood zones are pretty technical. I have written what I view as a detailed but simplified guide, below. This article will only cover the rainfall flood zones rather than coastal (ie ocean-related) flood zones. Due to the amount of development on both Oahu and the other neighbor islands, and also due to the limited sewer system infrastructure as compared to the people that live on these islands, knowing your flood zone here is imperative. The homes in Hawaii have unique terrain that includes mountains, hills, streams, wetlands, and even former now-developed wetlands (examples of former wetlands include the areas near Ala Moana and Kaka’ako on Oahu-SALT at Kaka’ako is actually named after the old salt pools this development sits upon). The mountainous geography leads to micro-climates that strongly affect local flooding and rainfall. It is very important to ask your Realtor about your flood zone, and is it important for your Realtor to advise you on your flood zone when you buying or selling in Hawaii. But, there are never guarantees–even within certain risk zone there can be wide differences parcel to parcel, and buyers are often able to review this data before buying. There is both an art and a science to choosing a property with the least flood risk possible. In college I mapped streams and flood areas, and even did a yearlong mapping research project on near-coast hurricane flood risks, both from ocean water and rainwater. Before that, I studied physical geography, geology, and analytical mapping (GIS). I’ve reviewed flood zone maps on over 1,500 properties from that experience. Now, you may be asking, why is a Realtor-Broker writing a detailed article on flood zones? Well, before I became a realtor, I became a real estate attorney* (and as of the time of this article I am still licensed as an attorney in both Illinois and Hawaii). This article is a guide to the rainfall flood zones in Hawai’i and is important information for all homeowners and prospective homeowners in Hawai’i. It is something every buyer and seller needs to know. Because Hawai’i gets a lot of rain, knowing your flood zones, and what each of them means, is an important part of both buying and selling property in the state of Hawai’i. But for the majority of the State of Hawai’i, the winter season is the rainiest season. Depending on where you live, it may be a winter rain season or a summer rain season. Buying Advice The 7 Flood Zones all Buyers and Sellers in Hawai’i Need to KnowĮvery year, Hawai’i has a rainy season.
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