FLOOD01635

• Designation Number: 558
• County: Douglas
• Community: Douglas County Unincorporated
• Title: Flood Hazard Area Delineation - Plum Creek Watershed
• Date: 11/1/2001
• Designation Date: 1/2/2002
• Prepared By: UDFCD, WRC Engineering
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Table 111-14: SWMM Parameters for East Section of Study Area I
BOTTOM
WIDTH LENGTH OF LEFT RIGHT
TYPE OF OR PIPE CONVEYANCE SIDE SIDE MANNING'S ESTIMATED I
CONVEYANCE CONVEYANCE DIAMETER ELEMENT SLOPE SLOPE SLOPE n DEPTH
ELEMENT ELEMENT (feet) (feet) (feet/feet) (feet/feet) (feet/feet) COEFFICIENT (feet)
201 Channel 20 900 0.036 25 25 0.085 10 I
216 Channel 20 600 0.04 25 25 0.089 10
217 Channel 10 1,400 0.043 3 3 0.085 15 I
202 Channel 20 2,000 0.D15 25 25 0.061 10
218 Channel 20 1,700 0.024 25 25 0.073 10
223 Channel 20 2,500 0.028 25 25 0.D78 10 I
219 Channel 5 600 0.025 3 3 0.074 10
220 Channel 5 2,600 0.021 3 3 0.070 10
221 Channel 5 1,300 0.023 3 3 0.072 10 I
222 Channel 5 1,300 0.028 3 3 0.078 10
204 Channel 100 1,700 0.012 25 25 0.055 10
224 Channel 25 2,300 0.016 25 25 0.063 10
225 Channel 25 2,000 0.033 25 25 0.082 10 I
226 Channel 10 1,500 0.028 10 10 0.073 15
227 Channel 10 600 0.028 10 10 0.073 15
228 Channel 10 1,300 0.026 10 10 0.071 15 I
231 Channel 10 1,200 0.026 10 10 0.071 15
230 Channel 10 2,500 0.036 10 10 0.080 15
232 Channel 10 2,000 0.024 10 10 0.069 15 I
233 Channel 10 900 0.024 10 10 0.069 15
236 Channel 10 2,000 0.024 10 10 0.069 15
350 Channel 10 1800 0.043 10 10 0.086 15 I
237 Channel 10 1100 0.027 10 10 0.072 15
238 Channel 10 1000 0.025 10 10 0.070 15
240 Channel 10 700 0.025 10 10 0.070 15 I
241 Channel 10 1400 0.025 10 10 0.070 15
242 Channel 100 1800 0.017 20 20 0.059 15
243 Channel 200 1600 0.013 5 5 0.051 15
245 Channel 200 1600 0.013 5 5 0.051 15 I
248 Channel 150 1400 0-025 5 5 0.066 15
254 Channel 150 1900 0.021 5 5 0.062 15
250 Channel 10 1800 0.033 5 5 0.077 15 I
251 Channel 10 1200 0.033 5 5 0.077 15
255 Channel 150 1100 0.022 5 5 0.063 15
256 Channel 150 1300 0.022 5 5 0.063 15 I
257 Channel 150 500 0.022 5 5 0.063 15
259 Channel 150 1600 0.022 5 5 0.063 15
265 Channel 10 1200 0.017 5 5 0.060 15 I
263 Channel 10 2000 0.03 5 5 0.075 15
264 Channel 10 1200 0.051 5 5 0.091 15
266 Channel 10 1500 0.04 5 5 0.083 15 I
267 Channel 10 1500 0.031 5 5 0.076 15
269 Ch8nnel 10 1800 0.049 5 5 0.090 15
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Ill-38
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