R2001-85 ACCEPTING THE BID AND AUTHORIZING A CONTRACT

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COUNCIL COMMUNICATION FORM Engineering & Infrastructure Memorandum NO. 2001-19 Apri130, 2001 TO: Honorable Mayor Howley and City Council FROM: Steve Garman, City Manager � Stephen P. Swanson, P.E., Director of Engineering & Infrastructure�� Matthew C. Newell, P.E., City Engineer ��'l SUBJECT: Street Reconstruction, City Project 2001-24 SUMMARY RECOMMENDATION: It is recommended by staff that the City Council approve the attached resolution awarding the contract for Street Reconstruction, City Project 2001-24, to Dunn Company, as the lowest, responsible bidder in the amount of$1,540,935.54, and that the Mayor be authorized to execute the contract, and the City Clerk to attest. BACKGROUND: 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. It is not practical to continue overlaying such streets since the structural capacity of the underlying road base is gone. On curb and gutter 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 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 be effectively maintained by the City's street crews. The streets on the reconstruction list are generally a constant source of citizen complaints because of their poor condition. This is largely due to the inability of normal maintenance procedures to restore structural strength to the street itself. This year's program will consist of reconstructing each street (road surface and sub-base) over the course of one week. This work will also include various storm drainage improvements, curb replacement and some general milling and overlay. A listing of the streets in this year's program is attached for your information.