PERMFILE104365

• Permit No: M1988042
• IBM Index Class Name: Permit File
• Doc Name: APPLICATION FOR MINING & RECLAMATION PERMIT
• Media Type: D
• Archive: No

STATE OF COLORADO
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March 8, 1982 Da.~ewt„'.t.
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Mr. Rod Allison
~\'eld County Dept. of Planning Services
915 Tenth Street
Greeley, CO 80631
Dear t9r. Allison:
The Colorado Water Conservation Board staff has completed
a flood hazard review for the Western Paving Construction Company's
Cottonwood Farms Pit located in parts of sections 16, 17 and 21
of Township 2 North, Range 68 West in Weld County, Colorado. We
offer the following findings and recommendations for consideration.
Findi:~:
• 1) The gravel mining operations will occur primarily in the
100-year floodplains as outlined n the U. S. Army Corps
of Engineers July 16, 1981, Technical i9rite-up on St. Vrain
and Boulder creeks. The 100-year floodplain and floodway
for Boulder Creek are correctly shown on the mining and
reclamation plan. However, the Corps floodplains are not
shown for Idaho Creek.
2) The Special Use Application adequately addresses the
floodplain issues and concerns with the inclusions of the
following recommendations.
Recommendations:
1) No fill, berm or stockpiles should be placed along the
south side of County Road 20~ which would obstruct
passage of the 100-year floods in any way.
2) No cuts or fills in the 100-foot setback strip should
be made except for placing the outlet culvert as shown.
This outlet culvert should probably be a minimum of
36 inches. The flood overflow channel should be set
at an elevation equal to or lower than the lowest spot
point on County Road 20§. If this can't be accomplished
•
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