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<br />fi; Ct(J' (1 Littleton <br /> <br />~ <br />,f;j'''?~11~ <br />~"I-' <br />-[". <br />., <br /> <br />MilSsey Dr~ Nld SJCD rSOuthj rv'.ap Dr':Wl"(}("NCIy Planning Upcl(lle <br />C()n(ept~1 [)(>sl9n Report <br />Feon..0ry lOO6 <br /> <br /> umma 0 servatlons <br /> Discharge Max. Flow Max. Flow Approx. Depth of Incised Street Overtopping Depth <br /> Veloeit" Oe th Channel # Flooded <br />Reach From/To Ownership Average 10- 100- 10- 100- 10- 100- Estimated Structures Comments <br /> Slope Year Year Year Year Year Year 0-3 It 3-6 It 6-9 ft 9-12 It S-Year lOO-Year Return during 100- <br /> (It) (It) Period Year <br /> (efs) (efs) (Ips) (fps) (It) (It) (Years! <br />Massey ttrilw .. . <br /> . "",' . .., -. . <br /> . <br />- , --- .. , , ""----..'~~ .. ~ -' n. "0-- .. -- ~., . - <br /> 0.4% Park <br /> Downstream <br /> Chatlield of Park Road Access <br />1 Lake to C-470 State Park 1.4% 1201 3816 9,9 11.4 6.2 9,5 X Road 25-50 <br /> Downstream 1.9 <br /> of C.470 <br />2 C-470 10 Chatlield 1.7% 1201 3816 10,2 12,3 6.8 9,6 X Massey Draw Watershed and <br />Wadsworth State Park Ecosvstem lmorovements site <br /> Wadsworth to 11 Houses <br />3 Carr Private 1.4% 930 2940 10.6 13,6 7,6 10,7 X X 100u1 <br /> buildinns <br /> Carr Carr St. culvert and downstream <br />4 Carr to Garrison FP&RD 1.0% 882 2824 8.5 11.1 5.4 8.1 2.7 5-10 improvements constructed 1999 <br /> Garrison Garrison <br /> Garrison to FP&RD I St. <br />5 Kipling Private 1.8% 848 2752 8.4 10,8 8,7 9.5 X St. 2.8 2-5 <br /> 0,6 <br />6 Kipling to C-470 Deer Creek 1.6% 787 2632 10,5 13,0 6.4 9,3 <br />Golf Club <br /> Rockland Rockland Flooding problems in area of W. <br /> Dr. Dr. <br />6.1 Meadow 1.4% 502 1243 6,5 8,1 7,7 8,5 1.2 2.4 <2 9 Houses Rockland Dr, and S, Oak St. <br /> Ranch Oak St. OakSt. observed during August 1999 <br /> 0,8 2,3 and June 2004 storm events <br /> C-470 to Valley Flow overtopped north <br />7 R.OW, 2.5% 508 1989 8,8 12,1 5.4 11.0 embankment and flooded Ken <br /> Road Carvl Ave, on June 27, 2004 <br /> <br />S <br /> <br />Table 6-1 <br />fOb <br /> <br />0\ <br /> <br />B-1 <br />