1988-06-06 Special Called Meeting

Browse Search

C~ CITY OF LA PORTE INTER-OFFICE MEMORANDUM • T0: Robert T. Herrera, City Manager DATE: MAY 31, 1988 FROM: John Joerns, Assistant City Manage ~~~~// Steve Gillett, Public Works Directo SUBJECT: East "E" Street Sanitary Sewer Due to numerous emergency point repairs, the City found it necessary to further investigate conditions of the sanitary sewer line on East "E"Street. On May 5, 1988, the line was televised by Insituform Gulf South, Inc. at our request. As shown by the enclosed videotape, there is very evident heavy deterioration of the concrete line. Most sections of the line have deteriorated to the point of exposing the aggregrate material. Approximately 100 feet of the line has deteriorated to the point of the top of the pipe being corroded away and large cavities being formed in the surrounding earth. This section could collapse at any time. There have been five (5) point repairs made on this line in the past year. Two of these repairs have consisted of replacing sections of line too corroded to allow conventional repair. These two repairs required replacement of approximately 300 feet of pipe. East "E" Street is currently in the design stage of adding curb and gutter and possibly widening of the roadway. Prior to the improvements beginning, this sanitary sewer should be seriously considered for replacement. If this is not done, it is likely a collapse will occur resulting in repairs being made and possible damage done to the new pavement. These repairs can be made this year without affecting the East "E" improvements which are contingent on a future bond sale. Funds were allocated in the budget of the East "E" Street reconstruction project for relocation of utilities. The City could utilize the 1985 General Obligation funds for replacement of the sanitary sewer system and meet the obligations of the tax certificate. Until an engineering estimate is prepared, it is not known if there will be sufficient funds available. The enclosed map indicates the section of line that needs to be replaced. This line consists of approximately 1200 feet of 8" sanitary sewer trunk main on East "E" Street from Iowa to Brownell.