FLOOD00155

• County: Boulder
• Community: Boulder County
• Stream Name: Upper Boulder Creek, Fourmile Creek
• Title: Floodplain Information Report
• Date: 12/1/1981
• Prepared For: Boulder County
• Prepared By: UDFCD
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

I
I TABLE 4
I PEAK DISCHARGE AND WATER SURFACE ELEVATION DATA
Fourmile Creek
I Distance Strea,m!! lo-Year 50-Year 100-Year 500-Year
Reference From Bed Flood Peak Flood Peak Flood Peak Flood Peak
Point Mouth Elevation Elevation DischargeE1 Elevation Discharg~ Elevation Discharg~Elevation Discharge&'
I Identification Number Ft. Ft.-m.s.l. Ft.-m.s.1. c.r.s. Ft.-m.s.!. c.f'.s. Ft.-m.s.1. c.r.s. Ft.-m.s.l. c.f'.s.
122 94+65 5993.8 5998.8 1370 6002.1 4310 6003.5 6030 6007.1 11280
I 123 90+30 5982.2 5989.2 5992.8 5994.2 5997.2
124 85+60 5970.7 5975.7 5978.4 5979.5 5982.4
125 81+30 5951. 6 5958.4 5960.9 5962.1 5965.0
I 126 76+50 5935.2 5940.5 5944.7 5945.8 5948.3
127 71+90 5916.7 5923.7 5927.9 5928.9 5931. 4
128 67+70 5901. 3 5905.3 5908.9 5910.4 5913.8
129 64+25 5888.7 5898.6 5900.6 5901.9 5905.3
I Private Drive 130 64+00 5888.0 u/s 5898.6 u/s 5900.6 u/s 5901.9 u/s 5905.3
D/s 5894.4 D/s 5896.6 D/s 5897.6 D/s 5899.6
131 60+35 5877.6 5885.0 5888.6 5890.1 5893.4
I Private Drive 132 60+05 5876.4 u/s 5885.0 u/s 5888.6 u/s 5890.1 u/s 5893.4
D/s 5882.0 D/s 5885.8 D/S 5887.0 D/s 5889.7
Private Drive 133 57+25 5869.3 u/s 5878.4 u/s 5881.0 u/s 5882.3 u/s 5885.5
I D/s 5876.0 D/s 5879.2 D/s 5880.4 D/s 5883.3
134 56+40 5867.1 5875.6 5878.5 5879.6 5882.3
Private Drive 134.1 55+70 5865.0 u/s 5875.6 u/s 5878.5 u/s 5879.6 u/s 5882.3
D/s 5871. 2 D/s 5874.7 D/s 5875.8 D/S 5878.4
I 135 53+00 5856.8 5863.8 5866.6 5868.1 5872.7
136 49+70 5846.1 5853.9 5857.7 5859.1 5861.1
Private Drive 137 49+45 5845.3 u/s 5853.9 u/s 5857.7 u/s 5859.1 u/S 5861.1
I D/s 5850.0 D/s 5855.1 D/S 5856.4 D/s 5858.9
Private Drive 137.5 47+85 5839.0 u/s 5848.6 u/s 5851.2 u/s 5852.5 u/s 5855.1
D/s 5843.6 D/s 5848.7 D/s 5850.1 D/s 5852.5
138 44+90 5827.7 5835.9 5838.8 5840.4 5844.0
I Private Drive 139 44+55 5826.5 u/s 5835.9 u/s 5838.8 u/s 5840.4 u/s 5844.0
D/s 5833.2 D/s 5836.9 D/s 5838.1 D/s 5841.0
Private Drive 140 42+85 5822.0 u/s 5832.7 u/s 5836.0 u/s 5837.2 u/s 5839.8
I D/s 5828.0 D/s 5831.6 D/s 5833.2 D/s 5836.4
141 42+60 5821. 6 5828.0 5831. 6 5833.2 5836.4
142 39+30 5813.0 5821. 2 5823.7 5824.8 5827.6
I Private Drive 143 38+95 5812.0 u/s 5821.2 u/s 5823.7 u/s 5824.8 u/s 5827.6
D/s 5815.4 D/S 5819.4 D/s 5820.7 D/s 5823.7
Private Drive 144 35+90 5804.2 u/s 5813.2 u/s 5816.0 u/s 5817.2 u/s 5820.4
D/s 5808.2 D/s 5812.1 D/s 5813.2 D/s 5815.9
I Footbridge 145 35+65 5803.6 5808.2 5812.1 5813.2 5815.9
147 32+85 5796.3 5802.1 1410 5804.6 4410 5805.8 6180 5808.0 11550
I 1I Low water elevation as determined by aerial photogrammetric methods.
y Discharges are prorated between stations.
I
I 19