FLOOD03173

• County: Statewide
• Community: All
• Basin: Statewide
• Title: State of Colorado 2002 Flood Documentation Report
• Date: 1/1/2003
• Prepared For: CWCB
• Prepared By: ICON Engineering, Inc.
• Floodplain - Doc Type: Flood Documentation Report

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_USGS

1l8&8 8'7212110l888101 11-1 MI88IDNflR'l RAIN&fl&E !EAR 1lURANGO, CD

8.88

f:] 8..78
=
~

8.68

.
....
=
l; 8.58
I-

.
'"
~ 8.48
I-
=
I-
~ 0.38
...
'"
,..
f 8.28
>
....
...
is 8.18

8.88

Jul 86 Jul 13 Jul 28 Jul V Rug lIS Rug 18 Rug 17 Rug 24
DATES: 86/3812882 to 88/28/2882

Provisionsl osts Subject to Revision
Figure 4.4 - Precipitation Graph of Missionary Ridge Bum Area Rain Gage A-1 Near Durango.

Since the storms did not cause severe damage to the community and surrounding area, or
any casualties, no federal flood mitigation assistance was necessary.

Total precipitation amounts varied according to different sources and different locations
throughout the burn area. This variation is expected and normal for storm fronts in the
state. The Rocky Mountain News reported that l.4 inches of rain fell in less than an hour
during the July 23fd event (Ensslin, I). Four official rain gages reported varying amounts
of total precipitation as well (0.57,0.52, 1.48, 0.30 inches). These amounts are discussed
in detail below.

The difference in precipitation amounts continued for the August 3rd storm. The Rocky
Mountain News reported that according to Butch Knowlton with the office of Emergency
Management, "...three-quarters of an inch of rain...fell over an 8- to l2-hour period"
(Rebchook, 1). Another article by the Denver Post quotes a technician for the National
Weather Service in Grand Junction, saying "...as much as 0.8 inches of rain fell in the
bum area" (Turner, I). The previously mentioned rain gages, also gave varying amounts
of rain for this event (0.27,0.42,0.30,0.20 inches).

ICON Engiceering. Inc

29

January 2003