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Last modified
1/25/2010 6:48:30 PM
Creation date
10/5/2006 1:18:17 AM
Metadata
Fields
Template:
Floodplain Documents
County
Summit
Community
Breckenridge
Stream Name
Blue River
Basin
Colorado Mainstem
Title
Technical Addendum Floodplain Information Blue River
Date
12/1/1974
Prepared For
Summit County
Prepared By
Leonard Rice Consulting Water Engineers, Inc.
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />a major portion of the orogrephic cloud. Since <br />these calculations are only a rough approximation <br />(=30%) no further refinement is warranted. How- <br />ever. :just for completeness, it is necessary to <br />include the immediate Hoos~er Pass area and the <br />upper portions of' the Halfway. Gollthusen. and <br />Voltz Gulches as areas which might experience a <br />precipitation of about 10~ of that of the main <br />regions. The positioning of the Red }buntain- <br />Mount Silverheels system is directly over the <br />peaks with elevations of 13.299 ft. and 13.822 ft. <br />J.lSL respectively. The circular area radii are <br />1.9 mi. (3.15 kIn.) over Red Mountain and 2.5 mi. <br />(4.14 kIn.) over lbunt Silverheels. The location <br />of the Bald Mountain- B::>reas Nountain system is <br />with one cell over the Boreas Mountain peak eleva- <br />tion 13,082 f't. MSL. The second cell is located <br />1.0 mi. (1.6 kIn.) NNE of Bald Mountain peak area, <br />1.0 mi. (1.6 kIn.) SSW of' Mount Guyot. 0.8 mi. <br />(1.33 kIn.) N of the Continental Divide in the <br />upper reaches of French Gulch at an elevation of <br />11.41~0 f't. MSL. The circular areas I radii are <br />3.4 mi. (5.64 kIn.) over the Bald lbuntain section <br />and 2.6 mi. (4032 kIn.) over Boreas lb\mtain. It <br />should be noted here that the lower eff'iciency used <br />in these determinations was 30% as opposed to the <br />other systems at 20%. <br /> <br />A summary of the assumptions used in all these calculations <br />is presented in Appendix III. <br /> <br />" <br />
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