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Rock_Chute.xls <br /> for construction plan <br /> Rock Chute Design - Cut/Paste Plan <br /> (Version WI-July-2010, Based on Design of Rock Chutes by Robinson, Rice, Kadavy, ASAE, 1998) <br /> Project: Morrison Drainage Diversion County: Colorado-Jefferson <br /> Designer: Nicholas Houseman Checked by: <br /> Date: 8/25/2023 Date: <br /> Design Values Rock Gradation Envelope Quantities a <br /> D50 dia. = 12.0 in. %Passing Diameter, in. (weight, lbs.) Rock= 914 yd3 <br /> Rockchute thickness = 24.0 in. D100 --------- 18-24(413-978) Geotextile (WCS-13)b = 1813 yd2 <br /> Inlet apron length = 10 ft. D85 --------- 16-22(269-713) Bedding = 0 yd3 <br /> Outlet apron length = 20 ft. D50 --------- 12- 18(122-413) Excavation = 0 yd3 <br /> Radius= 33 ft. D10 --------- 10- 16 (63-269) Earthfill = 0 yd3 <br /> Will bedding be used? No Coefficient of Uniformity, (D 60ND 10) < 1.7 Seeding = 0.0 acres <br /> Notes: a Rock, bedding, and geotexti/e quantities are determined from x-section below(neglect radius). <br /> b Geotextile Class l(Non-woven)shall be overlapped and anchored(18-in. minimum along sides <br /> and 24-in. minimum on the ends)-- quantity not included. <br /> Upstream o <br /> Channel 5Inlet apron elev. = 7098 ft. Point No. Description <br /> `n 1 v 2 s 2 Point of curvature (PC) <br /> Slope=0.046 ft./ft. Inlet apron a Rock <br /> p thickness= 24 In. 3 Point of intersection (PI) <br /> ----- loft------ 4 Point of tangency(PT) <br /> Stakeout Notes <br /> Sta. Elev.(Pnt) ` <br /> 19+25.3 7098 ft. (1) Radius = 33.36tt—I 1, Outlet apron <br /> 19+30.3 7098 ft. (2) elev. = 6871 ft. Downstream <br /> 19+35.3 7097.6 ft. (3) Geotextile � Channel <br /> :---------, <br /> 19+40.1 7096.5 ft. (4) 1 �. 5 Slope=0.02 ft./ft. <br /> 26+67.6 6871 ft. (5) 3.23 Outlet a ron <br /> 26+87.6 6871 ft. (6) 732 ft. ` --- 20 ft.---- 51 �d = 3 ft. <br /> 26+95.1 6874 ft. (7) <br /> Profile Along Centerline of Rock Chute Rock Chute <br /> Bedding <br /> ,,Top width = 10K <br /> Geotextile <br /> Freeboard = 1 ft. I ` <br /> 1 \ 'y= 1.65Rock Chute <br /> Notes: 2�� Bedding <br /> Rock gradation envelope can be met withDOT Extra Heavy riprap Gradation 3 ft. ckness= 24 in. <br /> B'=4 ft. HP throughout chute <br /> Rock Chute Cross Section but not less than z2. <br /> Profile, Cross Sections, and Quantities <br /> N RCS HouDatseman <br /> File Name <br /> O Morrison Drainage Diversion Designed Nicholas <br /> VDrawn Drawing Name <br /> Natural Resources Conservation Service <br /> United States Department ofAgricwwre Colorado-JeTferson County Checked <br /> Sheet of <br /> — <br /> Approved <br />