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December 8, 1999 Page 2 of 2 Hwy 12/18 (Madison to Cambridge Road) is a definite improvement for vehicular traffic and safety. The Hwy N bridge is also a much needed safety improvement for that intersection. We are definitely in favor of these types of highway improvements. However, we do have a problem with the callous attitude that is shown towards area landowners who have to deal with the water run-off problems created by these projects that are designed without any storm water management engineering. Just stating to a landowner that "the water still flows the same way it did before the road was improved" just shows a puerile, bully-like attitude which I would assume the Wisconsin Department of Transportation would not like to be associated with. Plus, how can anyone claim that the drainage has not change? Even if the same amount of water falls on the same amount of land you still have a substantial increase in the amount of impermeable surfaces, increased slopes to accommodate the overpass and ramps, more ditching, etc. all of which leads to greater amounts of channelized flow at much greater velocities. This channelized, high velocity flow (where there used to be gently infiltrating rain fall over agricultural land) now is causing existing swales to erode, new swales to be formed, agricultural difficulties in farming this area, sedimentation of area streams, reduced water quality of area watersheds, etc. As owners of a portion of the land in the NW Quadrant of the Hwy 12/18— Hwy 'N' Interchange, we have decided to help alleviate some of the drainage problems by building a detention pond as part of our reclamation plan for our nonmetallic mining operation. In order to facilitate the design of this pond and our reclamation plan we need the run-off calculations for the culverts, which are discharging to this area. Due to the time constraints imposed on us by the county to reclaim this site as originally permitted, we must receive these calculations with in the next month. If we do not receive these calculations from WisDOT within the next month, we will be forced to hire an engineering firm to complete an extensive drainage study of the area and therefore, be forced to bill WisDOT for this work (which they should have completed before this Hwy 12/18 project was even built!). If we do not receive any response from the Wisconsin Department of Transportation within the next month, we will assume that you have read this letter and agree to being billed for the drainage study of this area. Sincerely, c.c;IGibvic>i Dennis Richardson Engineer- R.G. Huston Company, Inc. Cc Tom Carlson, Wisconsin Department of Transportation District 1 Dire:tor Aicardo Roa, Dane County Land Conservation Jim Gregorius, Dane County Zoning Administrator Silvin Kurt, Town of Cottage Grove Chairman AN EQUAL OPPORTUNITY EMPLOYER