Laserfiche WebLink
• ~ 1 • <br /> Summary of Watershed Parameters, Peak Flow, and <br /> Design Statistics for Culverts in Naul Road A <br /> Seneca II-W Mine, Routt County, Colorado. <br /> WATERSHED PARAMETER <br /> Selected <br /> Peak Discharge Culvert Culvert HW <br /> Area Length Relief 10-Yr., 24-Hr. Length Diameter Required <br />Culvert (Ac) (Mi) (Ft) CN (CFS) (Ft.) (In.) (Ft)(2) <br />HRC-A1 774,0 2.13 955 _ 76 65.2 143 72 3.1 <br />HRC-A3 41,2 0,68 225 80 12.6 80 24 2.1 <br />HRC-AS 135.2 0.79 475 76 23.7 142 36 2.5 <br />HRC-A6 39.6 0.48 230 89 27,0 160 36 2.) <br />HRC-A7 38,4 0.48 175 89 26,2 160 36 2.6 <br />HRC-AB 38,1 0,45 180 89 26.0 130 36 2.6 <br />(1) + <br />(2)Culverts redesigned with SEDCAD . <br />Minimum cover over the top of culverts = minimum 2 feet. <br />