Laserfiche WebLink
<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 />41 <br /> <br />SECTION VII <br /> <br />THE MASTER PLAN <br /> <br />The master plan for major waterways in the South Boulder area is pre- <br />sented on 28 drawi ngs, showi ng channe I plans and profi les in the sec- <br />ond volume of this report. Full size sheets have been furnished to <br />the City of Boulder for day-to-day working use. These full sized draw- <br />ings are at a scale of 1" = 100', and existing topography is reflected <br />by contours having an interval of two feet. <br /> <br />The planned waterway lengths are tabulated below. <br /> <br />TABLE VI 1-1 <br /> <br />LENGTHS OF WATERWAYS <br /> <br />Wa te rway <br /> <br />Length of Waterways <br /> <br />Length in Mi 1 es <br /> <br />Gregory Creek <br />Bluebell Canyon Creek <br />King Gulch <br />Skunk Creek <br />Bear Canyon Creek <br />Viele Channel <br />Anderson Channel <br />David's Draw <br /> <br />6,100 ft. <br />9,800 ft. <br />2,740 ft. <br />14,100 ft. <br />19,900 ft. <br />7,490 ft, <br />3,100 ft. <br />9,000 ft <br /> <br />1. 15 <br />1.86 <br />.52 <br />2.66 <br />3.77 <br />1.42 <br />.59 <br />1. 70 <br /> <br />Total <br /> <br />72,230 ft. <br /> <br />13.67 <br /> <br />DESCRIPTION OF IMPROVEMENTS <br /> <br />A brief description of each of the master plans is given below; however, <br />the reader is referred to the drawings for details. <br /> <br />Greqory Creek. Waterway improvements begin at the turn around area just <br />above Flagstaff Road. The plan is to remove excess and dead vegetation, <br />protect and refurbish the channel from there to Pennsylvania Avenue. <br />Home owners in this area should co-operate with the City of Boulder in <br />replacing culverts that are inadequate. Flagstaff Road will be regraded <br />so that if the existing culvert overflows water will be brought back to the <br />channel. New culverts and special entrance structures to collect the <br />wide flow will be built at Willow Brook Road, Aurora Avenue, Euclid Ave- <br />nue, College Avenue and Pennsylvania Avenue. As the water flows in this <br />area between Aurora Avenue and Euclid Avenue, special earth work, a <br />retaining wall, and gabion drops will be used to re-direct waters into <br />Gregory Pond. Pennsylvania Avenue will be regraded to re-direct surface <br />flow into the 7th Street Pond. Then a special combination dam and in- <br />take structure will be bui It to direct the flow into a variable width <br />high velocity box culvert that will take the flow to Boulder Creek via <br />conduit in the street. The conduit wIll have a special armor plate <br />