R99-81 ACCEPTING THE BID AND AUTHORIZING A CONTRACT

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r , OF'�EC �+ G V 70 'l':I:is '��lINO�`' May 10, 1999 PUBLIC WORKS MEMORANDUM NO. 99 - 19 MEMORANDUM TO: Honorable Mayor and City Council FROM: James L. Williams, Jr., City Manager ��/ Bruce A. McNabb, P.E., Director of Public Works $ Stephen P. Swanson, P.E., City Engineer� SUBJECT: Street Reconstruction City Project 9924 The Street Reconstruction Program involves constructing new pavement in curbed or non-curbed streets having existing asphalt pavement with no remaining useful life. Curbed streets in this program have, over time, received multiple layers of surface treatments and / or overlays, and it is not practical to continue to overlay such streets. Each succeeding layer has reduced the available gutter depth by the thickness of the surface treatment or overlay. The available gutter depth on most of these streets has become two inches or less, such that the curb has lost most of its functional purposes (i.e., drainage control, access control, pavement edge delineation, delineation of non-vehicular travelways, aesthetics, roadside management, etc.). Non-curbed streets in the program have existing pavement that is badly deteriorated through age and use and can no longer cost effectively be maintained by the City's street crews. These streets are a constant source of citizen complaints because of their poor condition, which typically precludes routine maintenance practices from being cost effective. The City has performed limited maintenance work as a temporary relief to roadway users. This year's program will reconstruct approximately 4.4 centerline miles of street. The miles of City streets needing to be reconstructed is estimated to be 41 miles based on the Pavement Management System report for needs through 1998. A listing of the streets in this year's program is attached for your information.