In all areas of special flood hazards, the following standards are required:
A. Anchoring:
1. All new construction and substantial improvements shall be anchored to prevent flotation, collapse, or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy.
2. All mobile/manufactured homes shall be anchored to resist flotation, collapse, or lateral movement by providing over-the-top and frame ties to ground anchors. Specific requirements shall be that:
a. Over-the-top ties be provided at each of the four (4) corners of the mobile home, with two (2) additional ties per side at intermediate locations, with mobile homes less than fifty feet (50') long requiring one additional tie per side;
b. Frame ties be provided at each corner of the home with five (5) additional ties per side at intermediate points, with mobile homes less than fifty feet (50') long requiring four (4) additional ties per side;
c. All components of the anchoring system be capable of carrying a force of four thousand eight hundred (4,800) pounds; and
d. Any additions to the mobile home be similarly anchored.
3. An alternative method of anchoring may involve a system designed to withstand a wind force of ninety (90) miles per hour or greater. Certification must be provided to the Building Inspector, that this standard has been met.
B. Construction Materials And Methods:
1. All new construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage.
2. All new construction and substantial improvements shall be constructed using methods and practices that minimize flood damage.
C. Utilities:
1. All new and replacement water supply systems shall be designed to minimize or eliminate infiltration of flood waters into the system.
2. New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of flood waters into the systems and discharge from the systems into flood water.
3. On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding.
D. Development Proposals: All new development proposals, including subdivisions and manufactured home parks, shall:
1. Be consistent with the need to minimize flood damage;
2. Have public utilities and facilities such as sewer, gas, electrical, and water systems located and constructed to minimize flood damage;
3. Provide adequate drainage provided to reduce exposure to flood damage; and
4. Include base flood elevation data for all proposals greater than fifty (50) lots or five (5) acres (whichever is the lesser).
E. Review Of Building Permits: Where elevation data is not available, applications for building permits shall be reviewed to assure that proposed construction will be reasonably safe from flooding. The test of reasonableness is a local judgment and includes use of historical data, high water marks, photographs of past flooding, etc., where available. (Ord. 565, 10-3-1983; amd. Ord. 954, 12-20-2021)