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HomeMy WebLinkAboutUtilities 2007-01-17 Item 3B - Bid Award - RL Alia Company for Southcenter Boulevard Water Main INFORMATION MEMO To: From: Date: Subject: Mayor Mullet Public Works Director January 8, 2007 Southcenter Boulevard Water Main Replacement Project No. 98-WT05 BID AWARD ISSUE Award the bid for the Southcenter Boulevard Water Main Replacement project (see attached map for project location). BACKGROUND After the 2001 earthquake, the existing 12-inch cast iron water main in the Green River Trail broke. The main was repaired and it was determined that the existing line needed to be upgraded to ductile iron pipe. The water main is being installed in the WSDOT limited access area of 1-405 and WSDOT requires work to be done at night in this area. The water main is also being attached under the bridge crossing the Green River. These two factors have resulted in increased construction costs. The contract documents for the project were completed in the fall of 2006 and the project was advertised on December 7 and 14, 2006. The project is listed in the proposed 2007 CIP, page 78. Four bids were opened on January 5,2007. The engineer's estimate was $720,123.48. R. L. Alia Company of Renton, Washington, submitted the low bid of $764,864.00 for the base bid. All bids included state sales tax. The City of Tukwila currently has R. L. Alia under contract for the AllentownIFoster Point Water and Sewer Improvements project and work on the project is satisfactory. BUDGET AND BID SUMMARY When the 2007 budget process was completed in September of 2006, the project budget was $490,000. City staff requested an additional $130,000 in November of 2006 due to the steep rise in construction costs in the late fall. The funds could not be shifted because the preliminary budget was completed. It was decided to bid the project using funds from other 2007 projects. The remaining $400,000 to complete the project will be from the Interurban Ave South Waterline project. The Interurban Ave South Waterline project will be moved to 2008 with the design completed this year. Bid Construction Mgmt Contingency (10%) Total Bid Results Engineer's Estimate $ 764,864.00 $ 720,123.48 89,615.00 76,486.40 $ 930,965.40 $ 720,123.48 Budget $ 540,000.00 (Southcenter) 440,000.00 (Interurban) $ 980,000.00 RECOMMENDATION Award the bid for the Southcenter Boulevard Water Main Replacement project to R. L. Alia Company in the amount of $764,864.00. MC:ad attachment: bid tabulation map (P,ProjcctslA- wr Projcctsl98WTOS\Jofo Memo - Bid Award to R L Alia) 3 CITY OF TUKWILA Southcenter Boulevard Water Main Replacement Project No. 98 -WTO5 ITEM ITEM OR NO. TASK DESCRIPTION 1 ALL WORK 2 'Trench Excavation Safety System 3 'Unforeseen Utility Conflict Resolution 4 'Miscellaneous Work and Restoration (P:Pro)octAW. WT ProJata \05WTO5\Bid Tabulation) QUANTITY 1 NO. UNITS UNIT ILSI LS 1 FA 1 FA Subtotal Sales Tax 8.8% TOTAL Engineer's Estimate UNIT PRICE 10,000.00 I 5,000.00 COST $636,878.20 10,000.00 10,000.00 5,000.00 $661,878.20 58,245.28 $720,123.48 BID TABULATION R. L. Alia Company UNIT PRICE COST 683,000.00 $683,000.00 5,000.00 1 5,000.00 10,000.00 1 10,000.00 5,000.00 1 5,000.00 $703,000.00 61,864.00 $764,864.00 Gary Merlino Construction UNIT PRICE COST 753,000.001 $753,000.00 1,000.00 1 1,000.00 10,000.00 1 10,000.00 5,000.00 1 5,000.00 8769,000.00 67,672.00 $836,672.00 Construct Company, LLC UNIT PRICE COST 750,000.001 $750,000.00 5,000.00 1 5,000.00 10,000.00 1 10,000.00 5,000.00 1 5,000.00 $770,000.00 67,760.00 $837,760.00 Bid Opening Date: 1/5/07 Bid Opening Time: 10:00 a.m. Kar -Vel Construction, Inc. UNIT PRICE COST 803,600.001 $803,600.00 5,000.00 1 5,000.00 10,000.00 1 10,000.00 5,000.00 1 5,000.00 $823,600.00 72,476.80 $896,076.80 Southcenter Boulevard Water Main Replacement Aerial Photo Map Project No. 98-WT05