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HomeMy WebLinkAbout05 PROJECT 700077 03-20-95AGENDA - NO. 5 3-20-95 )ATE- MARCH 2 0, 19 9 5 Inter-Com TO: FROM: SUBJECT: WILLIAM A. HUSTON, CITY MANAGER PUBLIC WORKS' DEPARTMENT/ENGINEERING DIVISION AWARD OF CONTRACT FOR REMOVAL AND REPLACEMENT OF UNDERLYING ALLUVIUM AND EXISTING FILL IN LOT NOS. 10 AND 18 OF TRACT NO. 13627 (PROJECT NO. '700077, A.D. 86-2) RECOMMENDATION It is recommended that the City Council, at their meeting of March 20, 1995, award the contract for the subject project to Cash Grading Contractors in the amount of $190,430.40. FISCAL IMPACT No impacts to the City General Fund. Ail costs will be initially borne by the City of Tustin Assessment. District No. 86-2 with the reimbursement for the remedial grading being sought through litigation against the responsible parties. The iow bid is approximately. 34% below the Engineer's estimate of $290,130.00. BACKGROUND Bids were opened on March 7, 1995, for the twelve (12) bids were received as follows: subject project and Cash Grading Contractors, Ontario ................ $190,430.40 Mesa Contracting, Orange .......................... $191,884.00 T-n-T Grading, Inc, San Marcos .................... $193,359.20 Salsbury Engineering & Grading Contr., Anaheim .... $199,700.00 Kunze, Inc., Riverside ........ . .................... $217,692.60 Tri Corp Engineering, Inc., Fountain Valley ....... $241,896.80 Southern California Grading, Inc., Irvine ......... $250,971.00 Goplen Excavating & Engineering Contractor, Santa Monica ..................................... $262,215.40 Daghlian Tractor Work, Fallbrook .................. $285,310.00 G.K. Backlund, Inc., Anaheim ...................... $303,803.60 ACI,Corona ....................................... $320,684.00 C.A. Rasmussen, Inc., Simi Valley ................. $343,872.00 The references and the State Contractors License of Cash Grading Contractors have been checked and verified and are appropriate for the subject project. During the Jamboree Road construction, excess material from the roadway grading operation was placed within the limits of Disposal Site No. 2, which lies within portions of Lots 8, 10, 11, 16, 17 and 18 of Tract No. 13627. The initial grading operations have been completed by the City's contractor. However, as a result of the Irvine Company's final plan preparation for the final grading, it was discovered that certain areas within Disposal site No. 2 still contained unsuitable material identified as alluvial deposits, which have the potential for consolidation/collapse when subjected to excessive moisture. This project will provide for the excavation of the alluvial deposits and recompaction of the future building sites. A Professional Services Agreement to provide geotechnical services during.this grading operation is scheduled as a separate item at this City Council meeting. Tim D. Ser~ Director of Public Works/ city Engineer ~~y Otteson Associate civil Engineer