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In accordance with Rules 4.05.6(5) and 4.05.9(2) pertaining to supporting <br />calculations, documents, and drawings and spillway design requirements, <br />please revise Map 2.05.3(4) -6, page 2.05.3(4) -6, and the SEDCAD model to <br />indicate that the emergency spillway is a drop inlet structure. The barrel <br />length and slope should include the entire culvert length to its outlet on the <br />other side of the county road, and the riser height should correspond to the <br />elevation of the spillway channel bottom relative to the county culvert <br />invert. On Map 2.05.3(4) -6, a spillway detail should be provided, and the <br />outlet end of the culvert should be shown. <br />WFC: Map 2.05.3(4) -6 has been revised to show the drop inlet structure and the <br />associated barrel to its outlet. Detail has also been added to correctly reflect this <br />condition. SEDCAD modeling has also been revised to reflect the drop inlet <br />structure. <br />DRMS: Response accepted. <br />8. DRMS: The spillway configurations and dimensions used in the revised <br />SEDCAD designs appear to conflict with those shown on Map 2.05.3(4) -6 and <br />the photographs taken by the Division on December 12, 2012. <br />a. Map 2.05.3(4) -6 indicates that the length of the primary spillway barrel is <br />100'. The SEDCAD run is based on a length on 150'. Please revise the <br />map and /or design as necessary to reflect the actual length of the <br />barrel. <br />b. Map 2.05.3(4) -6 indicates that the diameter of the primary spillway barrel <br />is 24 ". The SEDCAD run is based on an 18" diameter. Please revise the <br />map and /or design as necessary to reflect the actual diameter of the <br />barrel. <br />C. The location of the primary spillway outfall is unclear on Map 2.05.3(4) -6. <br />Please revise Map 2.05.3(4) -6 to indicate the outfall of the primary <br />spillway. <br />d. WFC, in its response to item 4, indicates that the primary spillway location <br />was moved to correspond to the county road culvert. Is the primary <br />spillway connected to the county road culvert? If the primary spillway <br />barrel is connected to the county road culvert, please revise the <br />designs accordingly. <br />e. The SEDAD designs indicate that the riser height is 8'. Photographs of <br />the riser taken by the Division on December 12, 2012 (below) would <br />Page 2 of 3 <br />