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HomeMy WebLinkAbout05/17/2011 Lake Briarwood Sewer ImprovementsM -prospea Mount Prospect Public Works Department INTEROFFICE MEMORANDUM TO: VILLAGE MANAGER MICHAEL E. JANONIS FROM: WATER & SEWER SUPERINTENDENT DATE: APRIL 25, 2011 SUBJ: BID RESULTS FOR 2011 CDBG PROJECT — BASIN 37 SANITARY SEWER REPAIRS, LAKE BRIARWOOD SUBDIVISION ($797,285.00) BACKGROUND In response to resident complaints in the Lake Briarwood (Basin 37) area about basement backups and grease blockages, Public Works retained the professional services of Baxter & Woodman Consulting Engineers of Crystal Lake, Illinois to perform a Sanitary Sewer Evaluation Study (SSES) and to prepare engineering plans and specifications for rehabilitation work on Village -owned sewer facilities that service the area. The overall repair effort is comprised of both public and private sewer repairs with the public repairs split into two (2) Phases. As part of the bid, there is an option to bid both phases together as one project and Baxter & Woodman has estimated that there is a potential for savings for the Village in this present economy. The following repairs of the existing public portion of sanitary sewer system were included in the bid: Phase 1 a. Replace approximately 720 feet of sewer near the north ends of Briarwood Drive East and West b. Replace approximately 940 feet of sewer generally located along Lynn Court Rehabilitate approximately 790 feet of sewer along Briarwood Drive East using cured -in- place pipe (CIPP) to eliminate pipe defects Revised Cost Estimate for Phase 1 - $689,000 Phase 2 Replace approximately 900 feet of sewer along Briarwood Drive East Revised Cost Estimate for Phase 2 - $185,000 TOTAL ENGINEER'S COST ESTIMATE PHASE 1 & 2 - $874,000 ENGINEER'S COMBINED PROJECT ESTIMATE (including discount) $851,000 To assist with funding the project, Public Works obtained a $60,000 grant under the Community Development Block Grant program. The use of the federal grant will require the contractor to adhere to the federal program reporting rules and requirements. Additional funds necessary to facilitate completion of both phases (Phase I and Phase II) as a single project were made available by amending the 2011 budget to include unexpended sewer improvement funds from the 2010 budget. Pa e 2 of 3 BID ESULTS FOR 2011 CDBG PROJECT -BASIN 37 SANITARY SEWER REPAIRS, LAKE BRIARWOOD SUBDIVISION ($797,285.00) April 25, 2011 Baxter & Woodman prepared the plans and specifications for the repairs to the public portion of the sanitary sewer system within Basin 37 which is comprised mostly of the Lake Briarwood Subdivision and multi - family developments to the north and east of the Briarwood area. The bid requested that each contractor provide pricing for each of the two separate phases and also, a combined price for all of the work. BID RESULTS Prior to the bid opening, five (5) bids were distributed to area contractors experienced in sewer construction. In addition, public notice was posted in a local newspaper as required. A total of ten (10) bidders picked up plans and specifications for the project. Sealed bids were received until 1:00 p.m. on Monday, April 25, 2011 at which time they were opened and read aloud. Five (5) bids were received. The bid results are as follows: Bidder Phase 1 Phase 2 Combined Bid Base Bid Base Bid (includes discount) Swallow Construction, $546,250.00 $182,000.00 $724,804.50 Downer's Grove, II Glenbrook Excavating & Concrete, $585,302.50 $250,590.00 $823,892.50 Wauconda, IL Martam Construction, $665,687.00 $224,884.00 $858,569.00 Elgin, IL Western Utility Contractors, $689,305.47 $237,794.53 $919,100.00 University Park, IL R.A.Mancini Underground $695,342.00 $295,938.00 $971,280.00 Construction, Prairie Grove, IL DISCUSSION Staff has evaluated all bids and determined that all bids received are responsive to the request. All bidders submitted the required bid bonds and appropriate references. The apparent low bidder for the proposed 2011 CDBG — Basin 37 Sanitary Sewer repairs is Swallow Construction of Downer's Grove, Illinois. They have met all the bid requirements and submitted the required bid bond. Swallow Construction has not worked for the Village in the past. Area references were contacted and all had good remarks for the company. The engineer estimated that the cost of the repairs for both phases of the project is $851,000. Since three (3) of the five (5) bids received were lower than the engineer's estimate for the complete project, and the fact that sufficient funding is available in the current budget, staff and the engineer are recommending that the Board award the entire project as one combined project. Completing the recommended work as a single project will facilitate full realization of the improvements and minimize disruption and inconvenience for the impacted neighborhood. Pan 3 of 3 BID ESULTS FOR 2011 CDBG PROJECT - BASIN 37 SANITARY SEWER REPAIRS, LAKE BRIARWOOD SUBDIVISION ($797,285.00) April 25, 2011 Staff recommends the inclusion of a contingency in the award for this proposed contract due to the fact that the bid quantities are estimates and actual field measurements will vary. In this instance, staff is recommending a 10% contingency to the contract award in the amount of $72,480.50. The total recommended award would be $797,285.00 ($724,804.50 for the base award plus a contingency of $72,480.50). RECOMMENDATION I recommend awarding a contract for the 2011 CDBG PROJECT — BASIN 37 SANITARY SEWER REPAIRS, LAKE BRIARWOOD SUBDIVISION to Swallow Construction of Downer's Grove, Illinois in an amount not to exceed $797,285.00. Sufficient funds for this proposed contract exist in the current budget. Funding for this proposed project will come from the water and sewer enterprise fund. Matt Overeem Water & Sewer Superintendent I concur. Sean P. Dorsey Director of Public Works HAWater\projects\201 1 \briarwood\Board report 2011 CDBG Briarwood.doc