WSP10887

• File Number: 8449.900
• Description: Bear Creek
• State: CO
• Basin: South Platte
• Date: 1/1/1979
• Author: USACOE
• Title: Bear Creek Supporting Data
• Water Supply Pro - Doc Type: Data

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lIbite. Milk, and Musselshell, These regions correspond closely to "severe"
drought conditions on the 1990 Palmer Report,

River basins that experienced 71% to 100% of normal run-off were the
Yellowstone River basin in Montana, the Shoshone River basin in Wyoming, and
the Niobrara and E1khorn River basins in Nebraska, The 1990 Palmer Report
classified these areas as "moderate" drought conditions, '

Regions that had more than 100% of normal run-off were the Marias River
basin in Montana, and the Boyer and Nishnabotna River basins in Iowa, The
Marias River's discharge was above normal due to spring and early summer run-
off from mountain snowmelt, The Boyer and Nishnabotna Rivers discharges were
due to late spring, early sununer rainfall. These areas are shown as "normalll
to "moist" on the 1990 Palmer Report,

V. RESERVOIR ACCOMPLISHMENTS,

A, Flood Dama2es Prevented.

1, CorDS of
of Engineers dams in
summarized in Table 3,
downstream flooding,

En2ineers Dams, Flood damages prevented by the Corps
1990 and cumulative totals for each project are
Only the Salt Creek Reservoirs prevented or reduced

TABLE 3, FLOOD DAMAGES PREVENTED IN DOLLARS BY CORPS DAMS

DAM

Bull Hook (Havre Project)
Spring Creek (Lake Pocasse)
Bowman-Haley
Cottonwood Springs
Cold Brook
Cedar Canyon (Red Dale Gulch)
Pipes tern
Papil1ion Creek Project
Chatfield
Bear Creek
Cherry Creek
Kelly Road (Aurora)
Salt Creek Project

1990

Cumulative Total

o
o
o
o
o
o
o
o
o
o
o
o
16,700,000

20,664,000
33,000
o
o
o
250,000
13,683,600
o
1,945,000
450,000
163,267,000
2,172,000
43,794,000

16,700,000

248,096,600

2, Bureau g! Reclamation Dams, There was no downstream flooding
prevented by any Bureau of Reclamation Dams this year, Flood damages
prevented (both local and the Missouri River Main Stem) by the Bureau dams in
1990 and cumulative totals are summarized in Table 4,

8

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