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CHAPTER 17. MITIGATION ALTERNATIVES <br />17-5 <br />Table 17-4. Catalog of Mitigation Alternatives – Flood <br />Personal Scale Corporate Scale Government Scale <br />Manipulate Hazard <br />1. Clear stormwater drains <br />and culverts <br />2. Institute low-impact <br />development techniques on <br />property <br />1. Clear stormwater drains <br />and culverts <br />2. Institute low-impact <br />development techniques <br />on property <br />1. Maintain drainage system <br />2. Institute low-impact development <br />techniques on property <br />3. Dredging, levee construction, and <br />providing regional retention areas <br />4. Structural flood control, levees, <br />channelization, or revetments <br />5. Stormwater management regulations and <br />master planning <br />6. Acquire vacant land or promote open space <br />uses in developing watersheds to control <br />increases in runoff <br />Reduce Exposure <br />1. Locate outside of hazard <br />area <br />2. Elevate utilities above base <br />flood elevation <br />3. Institute low impact <br />development techniques <br />on property <br />1. Locate business critical <br />facilities or functions <br />outside hazard area <br />2. Institute low impact <br />development techniques <br />on property <br />1. Locate or relocate critical facilities outside <br />of hazard area <br />2. Acquire or relocate identified repetitive <br />loss properties <br />3. Promote open space uses in identified high <br />hazard areas via techniques such as: <br />planned unit developments, easements, <br />setbacks, greenways, sensitive area tracks <br />4. Adopt land development criteria such as <br />planned unit developments, density <br />transfers, clustering <br />5. Institute low impact development <br />techniques on property <br />6. Acquire vacant land or promote open <br />space uses in developing watersheds to <br />control increases in runoff <br />Reduce Vulnerability <br />1. Retrofit structures (elevate <br />structures above base flood <br />elevation) <br />2. Elevate items within house <br />above base flood elevation <br />3. Build new homes above <br />base flood elevation <br />4. Flood-proof existing <br />structures <br />1. Build redundancy for <br />critical functions or <br />retrofit critical buildings <br />2. Provide flood-proofing <br />measures when new <br />critical infrastructure must <br />be located in floodplains <br />1. Harden infrastructure, bridge replacement <br />program <br />2. Provide redundancy for critical functions <br />and infrastructure <br />3 Adopt appropriate regulatory standards, <br />such as: increased freeboard standards, <br />cumulative substantial improvement or <br />damage, lower substantial damage <br />threshold; compensatory storage, non- <br />conversion deed restrictions <br />4. Stormwater management regulations and <br />master planning <br />5. Adopt “no-adverse impact” floodplain <br />management policies that strive to not <br />increase the flood risk on downstream <br />communities <br />