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 />RECOMMENDATIONS <br /> <br />GENERAL <br /> <br />Flooding within the town of Breckenridge from the Blue River <br />is predominantly caused by inadequate .street crossings. Other <br />contributing factors are the Four Seasons Pond Dam spillway and <br />inadequate channei capacity in the area between Village Road <br />and Lincoln Avenue. In other areas the channel capacity is <br />sufficient to pass a major flood, although some bank erosion <br />could occur due to the steep channel slopes. From a practical <br />standpoint, leaving the channel in its present condition is <br />feasible with the exception of the minor modifications which <br />may be required to contain the floOding. <br /> <br />EMERGENCY FLOOD POLICY <br /> <br />Until such time as flood damage reducing measures have been <br />implemented, Breckenridge should establish an emergency flood <br />routine which would include early warning of potential flood <br />hazards and evacuation of residents which may be affected. Town <br />maintenance forces should have equipment manned and standing by <br />crossings to keep them free of debris. As it may not be feasible <br />to keep all crossings open, a priority should be established. <br /> <br />DEBRIS <br /> <br />Keeping crossing structures clear of debris is one of the most <br />important means of protecting against flooding. The debris can <br />be natural, such as trees, brush, rock or other native materials <br />found along the river channel. The debris can also be floatable <br />.materials resulting from commercial and industrial operations, or <br />from other activities which may be picked up and carried away by <br />floodwaters. The designated flood plain should not be used for <br />storage of such items which could cause plugging of crossing <br />structures thereby increasing flood losses. <br /> <br />BRIDGES AND CULVERTS <br /> <br />The existing culvert crossings should be replaced with adequate <br />bridges to allow passage of the IRF ~lood. The bridge elevation <br />should be such that there is at least 2 feet of under-clearance <br />above the flood level. The abutments of the bridges should be <br />placed so that there is no diminution of water area. <br /> <br />~ Leonard Rice Consultmg Water Engineers. Inc. <br />