FLOOD02718

• County: Logan
• Community: Logan County
• Stream Name: South Platte River, Pawnee Creek
• Basin: South Platte
• Title: Floodplain Information South Platte, Pawnee
• Date: 9/1/1978
• Prepared For: Logan County
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Floodplain Report/Masterplan

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River. flooding occurred In lata M&y and again In early to mld-
June. The South Platte River flood was augmented downstream from
Denver by tributary Inflow from ~th the mountain and plains trib-
utaries.

Table 5
~nnual Peak Discharge for the
Platte River at Julesburg, Coloradolll!

From U.S.G,S. Gaging Station located 215 teet downstream tnom
the U.S. Highway 385 brldge, .9mlla southeastot Julesburg.
Since II Mby 1973, a supplementary stream gage Is located 800
feet downstream from the U.S. Highway 38~ bridge.
Only those years having a peak discharge of 5,000 c.f.s. or
greater are Indicated.

South

6Jun
II Jun
15Jun
II Mar
8Jun
I Jun
16Jun
18Jun
IOJun
19Jun
2Jun
10 Sap
14 Mar
5",y
28Jun
19Jun
21 M/:Iy
21 May
IOJun
20Jun
16Aug
13 May
18Jun
II MIly

!!

y

'90'
1905
909
910
91'
917
92'
'"
92.
926
'"
938
939
'"
'"
'"
957
'"
96'
'OS
968
969
970
'"

6,500
12,400
6,040
18,800
13,400
9,100
30,1'100
16,000
11,000
5,400
31,300
7,980
9,:nO
16,200
13,000
16,800
8.160
7,510
7,120
37,600
12,200
10,600
9,960
22,000

June 1921-Hoavy,."infall overmuchof-the upper Sou-th
Platte River basIn caused flooding in Weld County Tn early June.
BeheenBrlghfonandOrchard,thewoodenbridgeswerelmpassable;
two were destroyed and the approaches to the others were dostroyed
foradlsTIinceofSBverlll hundred yards. At Fort Morgan the water
surfacecresfwascomparabletotr.atofthefloodotI894. The
discharge of this flood at Kersey and at Balzac was the largest
over recorded aT those locations except for -the flood of May 1973
and the flood of June 1965, respectIvely. The II00ded area at
S+erllng W3S reported liS be!ng 4 miles wldo.

M~v 1876 - The flood of lato May 1876 resulted from rllln-
hll on snowpllck. It was reputed to hllvo bean the highest flood
since IB64 Inl'ltlellsttheDenverarel'l.

,
,

June 1894 _ f1eavy ralnhll over the Front Range of the
Rocky Mountains caused flooding on the South Platte River In late
May and ellrly June. Floodwllters purportedly covered hundreds of
acres In the Brush vicinity. Old timers saId the South Platte River
W!lS ~full y two miles wide". The fort I>o\;>rgan TImes of 8 June 1894
stated that ~for 24 hours On 2 June, the flood touched the caps on
the top of the bridge piling".

For period of gllglng record, see table 2.

May-June 19~5 - Rains of cloudburst intensity over the
basIns of the plains trIbutaries to the South Platte River east
of Oenveroc:curredon 30-31 May following the wettest !o1ay In
Colorlldo In 18 vears. It was reported that II ~verltl'lble wall of

18

19