FLOOD04702

• Designation Number: 347
• County: Jefferson
• Community: Unincorporated Jefferson County
• Stream Name: Upper Lena Gulch
• Basin: South Platte
• Title: Flood Hazard Area Delineation - Upper Lena Gulch
• Date: 1/1/1993
• Designation Date: 9/1/1993
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Table 6-5

Floodway Table

Pleasant View Tributary

LOCA 11 ON FLOODPLAIN DATA 1-FooT RISE FLOODWAY DATA 0.5-FooT RISE FLOODWAY DATA
100-YR DATA 10-YR DATA 50-YR DATA 500-YR DATA DISTANCES LOOKING DOWNSTREAM DISTANCES LOOKING DOWNSTREAM
DIS- THALWEG FLOOD MEAN F.P. DIS- FLOOD DIS- FLOOD DIS- FLOOD FLOODWAY WIDTH FLOODWAY MEAN FLOODWAY WIDTH FLOODWAY MEAN
SHT RCH SECT. CHARGE ELEV. ELEV. VEL. WIDTH CHARGE ELEV. CHARGE ELEV. CHARGE ELEV. LEFT RIGHT TOTAL ELEV. VEL. LEFT RIGHT TOTAL ELEV. VEL.
# # # (CFS) (FT) (FT) (FPS) (FT) (CFS) (FT) (CFS) (FT) (CFS) (FT) (FT) (FT) (FT) (FT) (FPS) (FT) (FT) (FT) eFT) (FPS)
14 P-1 .001 810 5736.0 5739.0 .7 470 255 5738.2 550 5738.8 1000 5740.2 100 60 t60 5739.0 1.2 140 100 240 5739.0 1.2
14 P-l .401 810 5736.0 5739.0 1.1 450 255 5738.2 550 5738.8 1000 5740.2 110 100 210 5739.0 2.5 120 100 220 5739.0 2.5
14 P-l 5.601 810 5744.8 5746.1 5.8 400 255 5745.5 550 5745.8 1000 5746.1 90 50 140 5746.2 5.6 90 50 140 5746.2 5.6
14 P-1 9.151 810 5750.9 5753.8 7.8 460 255 5752.9 550 5753.5 1000 5745.1 75 45 t20 5754.2 4.9 75 45 120 5754.2 4.9
14 P-1 9.451 810 5751.2 5754.3 5.8 510 255 5753.2 550 5753.9 1000 5754.6 75 45 t20 5754.5 3.7 75 45 120 5754.5 3.7
14 P-1 12.171 280 5758.8 5759.9 4.6 260 55 5759.2 205 5759.8 500 5760.2 45 40 85 5759.9 4.8 45 40. 85 5759.9 4.8
14 P-1 13.t31 280 5760.5 5762.4 4.6 180 55 5762.0 205 5762.3 500 5762.7 55 40 95 5762.4 4.6 55 40 95 5762.4 4.6
14 P-1 14.381 280 5762.0 5764.5 6.3 40 55 5763.5 205 5764.2 500 5765.t 25 15 40 5764.5 6.3 25 15 40 5764.5 6.3
14 P-1 t8.581 280 5765.7 5769.2 7.1 30 55 5768.0 205 5768.9 500 5nO.1 15 15 30 5769.2 7.0 15 15 30 5769.2 7.0
14 P-2 19.681 280 5n1.1 5m.9 6_9 25 55 5n1. 7 205 5m.5 500 5m.6 . 5n2.9 6.9 . 5m.9 6.9
14 P-2 20.141 280 5n2.2 5775.6 6.6 30 55 5n4.4 205 5775.3 500 5n6.3 . 5775.6 6.6 . 5775.6 6.6
14 P-2 20.761 280 5m.4 5776.2 6.9 30 55 5775.1 205 5775.9 500 5n6.9 . 5n6.2 6.9 . 5n6.2 6.9
14 P-2 21.211 280 5n6.1 5n8.5 6.8 25 55 5m.3 205 5n8.2 500 5779.2 . 5n8.5 6.8 . 5778.5 6.8
14 P-2 22.071 280 5779.0 5780.6 7.1 25 55 5780.2 205 5781.0 500 5782.0 . 5780.6 7.1 . 5780.6 7.1
14 P-2 23.211 280 5781.4 5784.8 6.1 25 55 5783.0 205 5784.2 500 5785.4 . 5784.8 7.3 . 5784.8 7.3
14 P-2 23.721 280 5784.0 5787.9 6.4 30 55 5786.8 205 5787.7 500 5788.6 . 5787.9 6.3 . 5787.9 6.3
13 P-2 24.53t 280 5785.3 5789.1 6.0 30 55 5787.8 205 5788.8 500 5789.7 . 5789.1 6.0 . 5789.1 6.0
13 P-2 25.12t 280 5788.2 5791.1 6.4 30 55 5790.1 205 5790.9 500 5791.8 . 5791.t 6.4 . 5791.1 6.4
13 P-2 26.03t 280 5789.5 5792.4 6.0 30 55 5791.t 205 5792.t 500 5793.0 . 5792.4 6.0 . 5792.4 6.0
13 P-2 26.65t 280 5792.t 5795.8 6.3 30 55 5794.6 205 5795.5 500 5796.4 . 5795.8 6.3 . 5795.8 6.3
13 P-2 27.08t 280 5793.0 5796.5 5.9 30 55 5795.4 205 5796.3 500 5797.t . 5796.5 5.8 . 5796.5 5.8
13 P-2 27.851 280 5796.9 5799.4 6.5 30 55 5798.3 205 5799.t 500 5800.t . 5799.4 6.5 . 5799.4 6.5
13 P-2 28.251 280 5797.5 5800.0 6.3 30 55 5798.9 205 5799.8 500 5800.8 . 5800.0 6.3 . 5800.0 6.3
13 P-2 28.68t 200 5800.0 5802.9 6.2 30 40 5801.8 150 5802.6 300 5803.5 . 5802.9 6.3 . 5802.9 6.3
13 P-2 29.321 200 5800.0 5803.9 6.9 25 40 5802.7 150 5803.7 300 5804.8 . 5803.9 6.9 . 5803.9 6.9
13 P-2 30.001 200 5804.0 5806.5 6.4 30 40 5805.3 150 5806.2 300 5806.9 . 5806.5 6.4 . 5806.5 6.4
13 P-3 31.451 200 5806.1 5808.8 6.3 240 40 5807.6 150 5808.5 300 5809.2 10 10 20 5808.8 6.3 10 10 20 5808.8 6.3
13 P-3 34.921 155 5824.1 5825.8 3.2 240 40 5825.7 150 5825.8 300 5825.9 30 35 65 5826.0 4.3 30 35 65 5826.0 4.3
13 P-3 36.951 155 5832.0 5834.4 4.1 100 40 5833.4 150 5834.4 300 5834 . 7 20 55 75 5834.4 4.0 20 60 80 5834.4 4.0
13 P-3 38.151 155 5836.0 5839.0 3.9 75 40 5838.5 150 5839.0 300 5839.3 40 35 75 5839.0 4.1 40 35 75 5839.0 4.1
13 P-3 40.051 lt5 5846.1 5848.1 4.0 70 20 5847.4 80 5847.9 200 5848.3 20 10 30 5848.1 5.1 20 10 30 5848.1 5.1

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