FLOOD04097

• County: Boulder
• Community: Jamestown
• Stream Name: James Creek
• Basin: South Platte
• Title: Town of Jamestown Flood Hazard Mitigation Plan
• Date: 4/27/1993
• Prepared For: Jamestown, Dept. of Local Affairs Preparadness Improvement Grant Program
• Prepared By: Matthew A. Wilson, Robert L. Kistner
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

be saved from further damage.

Jamestown made national news, as the town
was completely isolated. Food, water, and
medical supplies were brought in by air and
three people were evacuated to Boulder Com-
munity Hospital. Erosion caused extensive
damage to the roads and bridges along James
Creek. A temporary road from the Peak to
Peak road was installed as road crews took
months to repair the road to Boulder. Dam-
age was estimated at $101,000. Due to the
extensive damage to private homes and public
works, Jamestown was declared a disaster
area by the Federal Government.

It is clear from this historical reconstruction
of the events leading up to, and during the
1969 event that the flood was anticipated by
many people in the community. The accounts
of a slow, steady rainfall, coupled with evi-
dence of the gradual rise and fall of both the

James creek and the Little James Creek indi-
cate that the event was a C'..eneral R..;n Flood.

Flood Hazard Survey of James
Creek

On January 26, 1993, the Colorado Office of
Emergency Management (OEM) conducted a
survey of all structures located within the
100-year floodplain/floodway in Jamestown
(See appendix C for floodplain Map). The as-
sembling of pertinent information on flood-
prone buildings within the floodway is based
on field observations conducted at that time
and is presented in the table below.

The floodplain survey provides critical data
for determining the type of buildings, founda-
tion types, and current building conditions in
the Jamestown Floodway. This valuable in-
formation can be used by the community to
assess its future potential for flood damage,

Jamestown 100yr Floodplain Survey

STREET STREET PROPANE 100 yr DISTANCE 1 QOyr FLOOD FIRST FLOOR FLOOD DEP"ll-i
NUMBER NAME STREAM OWN. FND. SEP'TlC SECURE FLOOOWA Y FROM CREEK ELEVATION ELEV A TlON FIRST FLOOR
.2 MAIN JAMES P B YES YES YES 125 ft, 6878 6877 1
.4 MAIN JAMeS p 8 YES YES' YES 90 ft, 6882 6890 -8
.14 MAIN JAMES P SOG YES NO YES 75 ft, 6890 6888 2
.20 MAIN JAMES P 8 YES NO YES 30 ft, 6894 6885 9
.28 MAIN JAMES P SaG YES NO YES 25 ft, 6897 6896 1
.34 MAIN JAMES P SaG YES NO YES 37 ft, 6899,5 6899.5 0
.40 MAIN JAMES P Crawl YES NO YES SO ft, 6902 6901.5 -0.5
.62 COLO. 94 JAMES P Crawl YES NO YES 131 ft, 6913 6914 -,
.66 COLO. 94 JAMES aTY SOG YES YES YES 170 ft, 6916 6915 1
.67 COLO. 94 JAMES P SOG YES NO YES 25 ft, 6918 6917 ,
.73 COLO. 94 JAMES P Crawl YES NO YES 80 ft, 6921 6921 0
.85 COLO. 94 JAMES P Crawl YES NO YES 37 ft, 6923 6922.7 0,3
#133 COLO. 94 JAMES FED. SOG YES NO YES 37 ft, 6946 6946 0
.167 COLO. 94 JAMES P Crawl YES NO YES 36 ft, 6963 6965.5 -2,5
#175 COLO. 94 JAMES P SOG YES NO YES 75 ft, 6967 6967.5 -0,5
.9 WARD ST JAMES P SOG YES NO YES 30 ft, 6975 6973.5 ',5

Figure - 10 - 1993 - Flood Hazard Mitigation Survey

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