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improvement project. <br /> 13. 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 11th Aves. <br /> were selected as a pilot project site. <br /> Nature of Problem: In some segments of streets located in relatively flat areas of <br /> Eugene, all or most of the catch basins are bubbler type. In many cases they are <br /> the parking lot bubblers for the local businesses. These bubblers fill in with debris <br /> and become non- functional. As a result, the stormwater capacity of the systems <br /> currently on these streets has proved inadequate. The city receives regular com- <br /> plaints of street flooding in these areas during storm events. Other problem areas <br /> include: <br /> - 22nd Ave. from Pierce to Cleveland. <br /> - Jefferson and Madison Streets from 16th to 19th Aves. <br /> - 19th Ave. from University to Patterson Streets. <br /> Recommended Solution: Evaluate areas of street flooding where bubbler catch <br /> basins exist in order to design piped interconnections of the bubblers. These <br /> systems would be connected to the nearest existing main lines if feasible. Evaluate <br /> this issue with all projects during scoping phase. <br /> Status `96: Engineering has begun the preliminary survey and design work. The <br /> scope of the project was expanded to enhance the capacity of the existing line on <br /> 7th Pl. by either upsizing the existing 30" pipe or by installing a companion pipe. <br /> Status March `97: Inclusion of sedimentation manholes was eliminated in favor of <br /> sumps in the catch basins. Plans are 95% done. Project is scheduled to go to bid <br /> February- March,1997. <br /> Status November `97: Conger /Wilson pilot project complete. The gutter line flow <br /> from bubblers to piped systems is currently being mapped city wide. <br /> 14. Location: W 34th Ave. drainage complex (Note: this will be identified as a separate <br /> project in the CIP) <br /> Nature of Problem: Drainage system originating at City limits along both Sundial <br /> and W 40th Ave reverts between piped and open drainage until finally entering <br /> piped system to the Amazon near W 34th and Olive ( #51239). A number of 24 ", <br /> 27 ", and 30" diameter pipe segments along the mid section of this system down- <br /> stream from larger 33" and 36" pipe segments appear to restrict capacity of the <br /> system to handle additional flows from increased development. <br /> 7 <br /> 97rebab us 11/97 bne <br />