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ORDINANCE 2012-036 <br />design characteristics. <br />(i) Material specifications for culverts and storm sewers. The following pipe <br />materials are acceptable: <br />1. Reinforced concrete pipe, fiber reinforced concrete pipe, bituminous <br />coated corrugated steel pipe, aluminum pipe, aluminum pipe arch, <br />bituminous -coated structural plate steel pipe, bituminous -coated steel pipe <br />arch, and HDPE N-12. Other pipe materials may be used, if approved for <br />the intended use by the Florida Department of Transportation. The <br />minimum diameter of single-family residential driveway or stormwater <br />management system discharge culverts shall be twelve (12) inches or its <br />cross-sectional equivalent; <br />2. Workmanship and pipe materials shall conform to FDOT Standard <br />Specifications, latest edition; <br />3. FDOT approved pipe material shall be used under county right-of-way <br />pavement and into salt water outfalls. Concrete for reinforced concrete <br />box culverts shall conform to FDOT Standard Specifications, latest <br />edition; <br />4. inlets. Design and spacing of inlets shall be in accordance with FDOT <br />Standard Specifications, latest edition., or Indian River County <br />Specifications. <br />(j) Drainage structures. All cross drains and storm sewers shall have headwalls, <br />flared -end sections, or terminating structures in accordance with Indian River <br />County Specifications or FDOT Standard Specifications, latest edition. Endwalls, <br />inlets, or other appropriate terminating and intermediate structures; and backflow <br />devices may be required where necessary. Exfiltration systems shall be equipped <br />with clean outs at all terminating points. <br />(k) Temporary ponding is allowable in areas specifically designed with high <br />percolation rates (such as east of SR A -1-A on the Barrier Island). The design <br />shall be such that ponding does not last more than eight (8) hours. Temporary <br />ponding in parking lots is permissible, if of shallow depth. <br />(1) Materials used in drainage facilities which cross, traverse, or encroach upon major <br />roads as depicted on the Indian River County Thoroughfare Plan shall be of <br />FDOT approved materials, acceptable to the Indian River Public Works Director <br />and designed for a minimum fifty-year life. <br />(m) (1) All stormwater facilities shall be established in dedicated stormwater <br />Underline: Additions to Ordinance <br />Strike-thretgh+ Deleted Text from Existing Ordinance <br />21 <br />C:\Documents and Settings\tlister\Desktop\Revised IRC Flood Protect Ord final 10-26-12.rtf <br />