Construct a new sanitary sewer, and modify up to 11 side sewers to connect to the new sewer, to replace the function of an existing sanitary sewer that is located in the center of 57th ave sw and that causes repeated sewage back-ups into associated residences. Four new maintenance holes will be installed that will allow the existing sewer to be kept in service during construction. All damaged and demolished paved surfaces and disturbed landscaping will be restored as directed by the seattle department of transportation. The project will also replace an existing curb ramp on the north side of alki ave sw at the intersection with 57th ave sw, as directed by the seattle department of transportation. All work to occur within the public road right-of-way, between 2555 57th ave sw and the intersection of 57th ave sw and alki ave sw. The project will result in no change to impervious surface area in the right-of-way. Note that the category selected, single family duplex, relates to the predomin