1. Drain application request - Laserfiche WebLink

DRAIN APPLICATION NO. 3261 1. The volume of water proposed to be drained and the impact of the flow or quantity of this water upon the watercourse into which the water will be drained. According to the general literature, there is likely to be a small increase in the total volume of water to be discharged from the project area as a result of tile drainage. In addition, tile drainage typically results in flows that occur over a longer period of time. This prolonged wetness in downstream channels and swales may promote the growth of cattails and make channels difficult to cross for longer periods of time. If the tile intercepts a groundwater source or water table, flows may be continuous. 2. Adverse effects that may occur to the lands of lower proprietors. This factor is limited to the project's hydrologic effects such as erosion, duration of floods, impact of sustained flows, and impact on the operation of downstream water control devises. According to the general literature, tile drainage typically results in delayed peak flows that are reduced compared to the pre-tiled condition. However, the flows tend to occur over a longer period of time. The effect of these flow characteristics generally means that local flooding issues won't be aggravated by tile drainage. The impact of sustained flows on lands of lower proprietors includes prolonged wetness in downstream channels and swales. This prolonged wetness may promote the growth of cattails and make channels difficult to cross for longer periods of time. Erosion issues that may occur on lands of lower proprietors are not known. 3. The engineering design and other physical aspects of the drain. The proposed drainage project consists of installing 76 acres of tile in the SW X of Section 24, T141N, R53W, Empire Twp., Cass County. The proposed tile would then outlet into the north ditch of Cass County Hwy 32 and flow east in said road ditch to a natural tributary in the SE X of Section 24. Water would then flow north in said natural tributary across the SE X and NE X of Section 24 and then across the NW X of Section 19 of Amenia Twp. where it discharges into the Rush River. 4. The project's impact on flooding problems in the project watershed. According to the general literature, due to the ability of tile drainage to improve the absorptive characteristics of soil, runoff from tile drained land is generally delayed and the peak flow is typically reduced. As a result, the project should not aggravate local flooding problems. 1