Report on Review of 308 Report Platte River, Colo., Wyo., and Nebr., House Document No. 197 73D Congress 2nd Session on Flood Control for Bear Creek Colorado

• Description: Report on Review of 308 Report Platte River, Colo., Wyo., and Nebr., House Document No. 197 73D Congress 2nd Session on Flood Control for Bear Creek Colorado
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 3/1/1941
• Author: Besson, F. S.
• Title: Report on Review of 308 Report Platte River, Colo., Wyo., and Nebr., House Document No. 197 73D Congress 2nd Session on Flood Control for Bear Creek Colorado
• Water Supply Pro - Doc Type: Report/Study

tively small area. These general observations closely fit the storm
characteristics of the Bear Creek watershed. Distinrui:shin;;:; feaaurc;s of salle of
the past storms in this region, insofar as they are known, are compared in
the following table:
36. Available hydrological data.- No U. S. Weather Bureau precipi-
tation stations have been maintained in the basin. The nearest station
with a detailed record of precipitation intensities is at Denver (approxi-
mate elevation 5,200 feet.) It is believed that the data contained in
the table, paragraph 35, are more indicative of the rainfall rates which
can be expected in the cloudburst zone of Bear Creek Basin than the Denver
record.
37. Stream gaging was begun on Bear Creek in 1837. However, the
characteristics of this stream necessitate a continuous gage record for
an adequate study of flood flows. Such records are available at I:iorrison
since 1924 and at Sheridan Junction since 1928, with the exception of
several critical flood periods. Available peak rates of flow for out-
standing floods have been estimated by the slope -area method.
B. BASIS OF DESIGmT FOR FLOOD CONTROL
38. General considerations. - It is desired to use, as a basis for
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Precip' cation
:IvTaximum:
Area of Duration
Location
Date
:inches :intense rain:
hours
sq. mi.
Near
Idalia, Colo. :�.Iay 30 -31, 1935
: 18
3,000
3
Near
Kiowa, Colo.
do
24
2,000
3
Near
Pueblo, Colo. :June
3 -4, 1921
: 14
300
2 - 15
1Tear
lorrison,Colo.:Sept.
2, 1938
: 10
60
2 - 4
Near
La Junta,Colo.:Sept.
15, 1934
5
635
2
Near
Holly, Colo. :Aug.
28, 1935
: 11.5
100
2 - 4
Granada Creek Basin,:July
11 -12, 1935
: 9
115
8
eastern Colorado .
36. Available hydrological data.- No U. S. Weather Bureau precipi-
tation stations have been maintained in the basin. The nearest station
with a detailed record of precipitation intensities is at Denver (approxi-
mate elevation 5,200 feet.) It is believed that the data contained in
the table, paragraph 35, are more indicative of the rainfall rates which
can be expected in the cloudburst zone of Bear Creek Basin than the Denver
record.
37. Stream gaging was begun on Bear Creek in 1837. However, the
characteristics of this stream necessitate a continuous gage record for
an adequate study of flood flows. Such records are available at I:iorrison
since 1924 and at Sheridan Junction since 1928, with the exception of
several critical flood periods. Available peak rates of flow for out-
standing floods have been estimated by the slope -area method.
B. BASIS OF DESIGmT FOR FLOOD CONTROL
38. General considerations. - It is desired to use, as a basis for
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