FLOOD02643

• County: Denver
• Community: Northeastern Colorado
• Stream Name: South Platte and Tributaries
• Basin: South Platte
• Title: Post Flood Report South Platte Floods of May-June 1973
• Date: 7/1/1974
• Prepared For: State of Colorado
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Flood Documentation Report

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Table 5
SbUTH PLATTE RIvER - 1913 FIOOD
VOLUME LOOS StJ.tMARY - MAY, JtlNE, AND JULY
KEtlSE1 To M:)U'J.'lI bP SOli'1'lt PLATTE RIVER

May
June
July

700,900
389,500
12,860

569,200
220,200
52,610

510,470
178,150
41,110

508,600
206,100
20,400

462,100
218,420
18,930

Total Volume
Lost Kersey
to mouth
(ac .:ft.)

238,800
171,100
54,000

KerseY
(ac .ft.)

funthlY .volume I'llsllinl(station
We1doM :a&lzac JulesbUl'e; No. Platte
(ac.ft.) (ac,ft.) (ac.ft.) (ac.:ft.)

Month

f. Tributary inn".,. There ar'e six tributary streams emptying
into the South Platte River betWeen Littleton and Kersey for which
discharge records are available. 'rhe contribution from each of
these tributaries to the early May flood period on the South
Platte River is sUllllllarized in table 6. The basin map presented
on plate 1 show the loeatiol1 or the tributary streams within
the South Platte River b!l.sin and, together with the data in table
6, indicates the source of major runOff contribution to the South
Platte River flood.

Table 6
SOUTH PLATTE RIVER TRIBUTARY INFLOW
6-15 MAY 1973

Peak Discharge Volume for
Drainage During Period Period from
Tributary Stream1 Area From 6-15 May 6-15 MaT
(sq.mi.) Date Peak (D.S.F.
(c.f .s.)
Bear Creek 260 6 May 4,000 13,294
Cherry Creek 252 6 May 2,730 1,717
Clear Creek 575 6 May 4,700 10,943
St. Vrain Creek 976 7 May 5,630 22,800
Big Thompson River 828 7 May 1,440 7,829
Cache la Poudre River 1,871 14 May 1,650 13,126

lRecords shown are from gaging stations located near the mouth of
tributary streams.

2uncontrolled drainage area between Cherry Creek Dam and mouth of
Cherry Creek.

22