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complex, appears to harbor the potential for creating surcharging and/or localized <br /> flooding conditions at the various diameter restrictions and inlet choke points as <br /> additional flows are introduced to the system from upstream development. <br /> Recommended Solution: Conduct flow analysis of entire system based on the <br /> projected full development of the drainage basin. Study feasibility of reconstructing <br /> sections and/or pipe segments of the existing system that do not meet design standards <br /> necessary to adequately service flows based on full basin development. Acquire <br /> necessary easement from new development to allow maintenance access to the grated <br /> manhole inlet to the piped system behind 384 Delwood St. ( #50138). Also, enclose <br /> the short section of open drainage to pipe between 36" outlet just north of W 37th <br /> Ave. ( #50115) and inlet to 24" pipe leading to Frederick St. ( #50107) to eliminate <br /> potential maintenance problems associated with this inlet. Reconstruct under -sized <br /> system components as appropriate. <br /> Status: Engineering has begun research for project design. Because of the scope of <br /> this project, Engineering recommends the services of a consultant. <br /> 9. Location: Catch basins in front of 2438 Skyline Blvd. <br /> Nature of Problem: Catch basins presumed to be bubblers ( #56452 and 56453) have <br /> been verified by smoke testing as being connected directly to the sanitary sewer. <br /> Drainage catchment is necessary at this location to prevent localized flooding due to a <br /> significant dip in Skyline Blvd. This condition should be corrected irrespective of <br /> cost. <br /> Recommended Solution: Acquire necessary easement to construct a piped connection <br /> downhill along private property to the existing 12" piped system on Birch Ln. <br /> Status: Engineering has assigned good job no. Surveying complete. <br /> 10. Bubbler Catch Basin Interconnection Project: <br /> Location: Several bubbler interconnect projects in various locations have been <br /> identified and examined. Conger and Wilson Streets between 5th and 1 lth Aves. <br /> were selected as a pilot project site. <br /> Nature of Problem: These streets are located in the flat, industrialized section of West <br /> Eugene. All of the Catch basins on these lengths of streets, except at the intersections <br /> of 5th Ave. And 7th Pl., are bubbler type. In many cases they are the parking lot <br /> bubblers for the local businesses. These bubblers fill in with debris and become non- <br /> functional. As a result, the stormwater capacity of the systems currently on these <br /> streets has proved inadequate. The city receives regular complaints of street flooding <br /> in this area during storm events. <br /> Recommended Solution: A piped interconnection of the bubblers. These systems <br /> would be connected to the existing main lines on 5th Ave. And 7th Pl. <br /> 97rehab.eta 3/97 tine 5 <br />