FLOOD04656

• County: Statewide
• Community: United States
• Basin: Statewide
• Title: Summary of Floods in the United States During 1965
• Date: 1/1/1970
• Prepared For: US Department of the Interior
• Prepared By: Federal, State, and Local Agencies
• Floodplain - Doc Type: Flood Documentation Report

E22

FLOODS .OF 1965 IN 'rHE UNITED STATES

960 950

43'

EXPLANATION
.'
Flood-determination point
l{u:mberoorre8pondsto
t1mtm tOOle a

42"

/r
./
//
/
10/
/
/
, I
n/
I

10 0
1.."1.,,,1

10
1

20
1

30 MILES
1

FIGURE H.-Location of flood-determination points, :tIoods of April in the Little
Sioux River basin. Iowa.

r
1
I
i
I
I
i
,
,
,
,
,

SU~RY OF FLOODS

E23

The discharge in the Little Sioux River was high in the entire length
of the river (table 8), However, the intensity of the discharge de-
creased considerably at the extreme lower part (see sta.lll because the
discharge contributed by more than 700 sq mi of the Maple River
basin was of very low magnitude,
COlllliderable flood damage occurred.in urban areas along the Little
Sioux River, The Corps of Engineers estimated the damage at Chero-
kee to have been $666,000.

TABLE B.-Flood stages and discharges, April, in the Little Sioux River basin, IQWa

No,

Stream and p1a.ce 01
determination

1 Little Si()~ River at
Spencer.
2 Little Sioux River at
Gillett Grove.
3 Little Siow: River near
Cherolcee.
4 Mill Creek near Cherokee.___
o Little Sioux River at
Cherokee.
6 LIttle Sioux River at
Correctionville.

7 Little Sioux River near
;Kennebec.
8 :Maple River near Ida Grove.
9 Odebolt Creek near Arthur__

10 MapleRiveratMapleton__..

11 Little SiouX River near
Turin.

1 Ratio of peak discharge to 5O-y~r fiood.
2 Unknown.
3 Belote levee broke in vicinity of gage.

Maximum :Roods

Drainage
"'"
(sqm1)

Known before
April 1965

Discharge

April
1965

0""
height
(feet)

Recur-
Cis ranee
interval
(y~)

Period Year

99'

20.20
17.37
11.87
18.67
17.48
18.83
13.37
25.1
27.1
29,34
23.36

30,000._________
16,700 11.37
24,000__________
20,200 11.30
21, 400 n___~._..
26,800 11.52
10,400 11.48
8!700 ---hii:72
(2) ___n._.__
20, 900 _+_'~'__"

1,334

1937-42, 1953
1953.
'i95a;---'-"-'i9.~~"
1959-%.
_....h____________. 7
1953_H____ 1953 ..."..___.

6

1,$61

292
2,182
2,500

__.n_.__n___....__ 6
____.____n____...._ 6
1891~1965__ 1891 ___.._____
.i89i=======.-i89i--___._.+_~_
1919-25, 1954 ......___.
1929-32,
1937-%.

...______.__._____.. 7 25.86 29,800 11.47
2,738 1940-65___. 1954 ._________ 326.63 .______hu______.__
1962 _____________.....__ 19,000_..______.
364 .i9M=~===~=-.i954..___.m_~_ i~:ro ~:i}OO Ll.4S
39.3 .i95i:-..-h--i962--__m___~_ t~:~~ ~~ ___...~.__
1958-65.
_____....___________ 3 11.14 1,360 <2
669 1942--6S..__ 1950 __________ 22.1._______________.___
1954 _<__.n_.________... 15,600 n~_""_'
.......__.____n__n 1 12.14 9,240 2
3,526 1959-65____ 1962 .h_.___n 23.97 24,400 ....--.-..
....__.___.______... 8 26.05 Zl,100 __n__<h<

FLOODS OF APRIL-MAY IN NORTHWESTERN MINNESOTA

By D. W. EBJ:CSON

Rains during the snowmelt period augmented overland runoff and
caused severe flooding in the Red River of the North basin in -Min-
nesota during April and -May (fig, 12), Other antecedent conditions
contributed to the high runoff. Frost penetration was deeper than usual
because of abnormally low temperatures and relatively light snow
cover during most of the winter. Only in March was precipitation