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City Council Drainage Study Committee May 14, 2001 Page 2 the overall construction cost is going to be fairly high. Mr. Tibbits said that the bridges at Culbertson, Simpson, and Hubbard Street had been improved by the city in 1988 or 1989 by widening those bridges and that would be their design point and that would set the slope that would determine how much slope is available from one to the other. He said they could design the project by phases. Mr. Tibbits said what it shows and that they have eluded to, is that a lot of the property owners have built up to the edge of the ditch and have put in their own retaining walls, and some of the property owners have honored the easements but some have not. Mr. Tibbits said that another problem is just north of 24' Street S. E. where the property owners have built a concrete slab over the ditch and placed dirt over the top of the slab. Other problems were large trees in the ditch, and sewer lines that runs beside the ditch, which are probably clay tiles. He said if the city goes in to these areas, the sewer line will probably have to be replaced. Mr. Tibbits said until they have a survey of the area, they will not know what slopes are available. Mr. Tibbits advised that for all the drainage improvements, including the design, surveys, engineering, and establishing rights -of -way all the way down to Simpson, would be an estimated cost of 1.1 million dollars and the sewer improvement is estimated at approximately $285,000.00. After a considerable amount of discussion, a motion was made by Councilman Bell, seconded by Mayor Pro Tem. Manning, authorizing Hayter Engineering to do the design work, surveying, prepare plans and specifications, and acquire rights -of -way for the Wade Park, Lamar Avenue, and 24th Street S. E. Drainage Improvement Project, plus the sewer line improvement. The motion carried 3 ayes, 0 nays. Terry Townsend, Director of Public Works, came forward giving a report on the small drainage projects that were complete, jobs underway, and drainage problems that they are getting estimates on by contractors.