FLOOD04286

• Designation Number: 23
• County: Adams
• Community: Westminster
• Stream Name: Big Dry Creek
• Basin: South Platte
• Title: Major Drainageway Planning - Master Plan - Big Dry Creek - Westminster - Volume I
• Date: 3/1/1973
• Designation Date: 7/1/1973
• Floodplain - Doc Type: Floodplain Report/Masterplan

TABLE I V"5

INFilTRATION TEST R~SUlTS

IV-12

Test location Infl 1 tratloll
Number 1/4 1/4 Sec. Twn. ~ _~_ill/hr ____.Remarks

NW

1 S

68w

2.-] /2

SW

27

2

NW

27

68w

SW

IS

3

14

H/4

SW

SW

2S

69W

4

14

69W

3/4

SW

2S

SW

5

SW

14

69W

3

2S

NW

6

14

69W

1-,3/4

NW

SW

2S

7
8

SE

IS

69W
69W
68w

8..1/2

NW

35
35

1 S

10

NW

SE

9

3

2S

1/8

SW

SW

Test on thick grass -
s003ked from heavy rain
the day before test.

Test on imported back-
fill compacted to 100
per cent, no grass,
ground soaked from
heavy ra I n the day be-
fOI.e tesL

Test
so I I
test.

on natural bare
wetted before

Test on medium grass -
wetted before test.

Test on medium grass -
"etted before tes t.

Test on naturai soil -
"etted befo re tes t.

Test on dry grass

Test on dry grass

Test on medium grass -
test ran continually
for 50 hours.

;'These tests were compared to numerous pervious tests in general area,
but out of Bid Dry Basin, to obtain average infiltration rate of
one Inch per hour for existing conditions.