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Home My WebLink About1996-10-01; Municipal Water District; 344; Construction of Maerkle Reservoir - Cover & LinerEi zi E % . . G 5 0 2 8 CARLSBAD MUNICIPAL WATER DISTRICT - AGENDA BILL m# & TITLE: AWARD OF CONTRACT FOR THE DEPT. HD. MTG. $-k%?- CONSTRUCTION OF THE MAERKLE RESERVOIR - COVER AND LINER CITY ATTY. &fz DEPT. CMWD CMWD PROJECT NO. 90-109 CITY MGR. CONTRACT NO. 3388 RECOMMENDED ACTION: Adopt Resolution No. 4 58 accepting a bid and awarding a contract for the construction of the Maerkle Reservoir - Cover and Liner, CMWD Project No. 90-109, Contract No. 3388. ITEM EXPLANATION: On June 11, 1996, the Board of Directors authorized the advertisement of bids for construction of Maerkle Reservoir - Cover and Liner, CMWD Project No. 90-109, Contract No. 3388. Six (6) sealed bids were received on September 11, 1996, as follows: 1. JW Contracting Corporation, Corona CA. $4,563,000.00 2. Pacific Hydrotech Corporation, Perris, CA. $4,795,000.00 3. West Coast General, Lakeside, CA. $5,341,410.00 4. Orion Construction, San Marcos, CA. $5,497,247.00 5. C.A. Rasmussen Inc., Simi Valley, CA. $5,712,000.00 6. Cambridge Concrete, Inc., Victorville, CA. $6,768.191.00 This project will involve construction to regrade the interior of the earthen reservoir, install an asphalt liner and polypropylene cover and appurtenances. Construction is anticipated to require approximately five hundred forty (540) calendar days to completion. The Engineer’s estimate for construction was $7,800,000. Plans and specifications for the Maerkle Reservoir - Cover and Liner were prepared by the District engineering staff. In accordance with Section 3.28.120 of the Municipal Code, an invitation to Bid was published. Six (6) responses, were received, opened, witnessed, and recorded on September 11, 1996. Project Manager and Purchasing staff have reviewed the complete bid documents from all parties in detail and concluded that the lowest responsive, responsible bidder is JW Contracting Corporation, Corona, CA. for a contract amount of $4,563,000. The project will require surveying and construction management services. The construction management includes shop drawing review, cover inspection, electrical and structural review, geotechnical testing and inspection, and as needed engineering related services. The following firms were selected to perform this work: Survey: Right-of-Way Engineering Services, Inc. Construction Management: John Powell & Associates Total Cost for Surveying and Construction Management Services $ 32,660.OO $127,960.00 $160,560.00 Page 2 of Agenda Bill No. 3w ENVIRONMENTAL REVIEW: The City Planning Department issued a Mitigated Negative Declaration for this project on June 8, 1995. No permit was required from the Coastal Commission. FISCAL IMPACT: Funds in the amount of $7,800,000 have been appropriated in the 1996-97 Budget as part of the Water Replacement and New Development Fund. The available balance is $7,606,096. The construction bid for the project is $4,563,000. The estimated District-funded project costs are as follows: Construction $4,563,000 Construction Contingencies 10% $ 456,000 Inspection/Administration $ 150,000 Surveying $ 33,000 Construction Management Services $ 128,000 Total Estimated Project Costs $5,33Q,OOO Total Appropriation $7,606,096 EXHIBITS: 1. Location Map 2. Resolution No. 958 accepting a bid and awarding a contract for the construction of Maerkle Dam - Cover and Liner, CMWD Project No. 90-I 09, Contract No. 3388 CMWD 90-109 LOCATION MAP VISTA . ~CANSCC CCEANSEE /- v/S TA .u -7 / ‘ A IA VICINITY MAP PROJECT NAME: PROJECT NO. EXHBIT NO. MAERKLE DAM COVERING 8r LINING go-109 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 RESOLUTION NO. 958 A RESOLUTION OF BOARD OF DIRECTORS OF THE CARLSBAD MUNICIPAL WATER DISTRICT OF CARLSBAD, CALIFORNIA, ACCEPTING BIDS AND AWARDING CONTRACT FOR CONSTRUCTION OF MAERKLE RESERVOIR COVER AND LINER, CMWD PROJECT NO. 90-109. CONTRACT NO. 3388 WHEREAS, the Board of Directors of the Carlsbad Municipal Water District has previously authorized the advertisement for bids for the Maerkle Reservoir - Cover and Liner, CMWD Project No.90-109, Contract No.3388; and, WHEREAS, Six (6) sealed bids were received on September 11, 1996, for said project; and, WHEREAS, all bid documents received from all bidders have been reviewed in detail and the Board of Directors does hereby find that the lowest responsive, responsible bid received for the construction of said project was submitted by J.W. Contracting Corporation in the amount of $4,563,000. NOW, THEREFORE, BE IT RESOLVED, as follows: 1. That the above recitations are true and correct. 2. That the bid amount in the amount $4,563,000 submitted by JW Contracting Corporation of Corona, California, is hereby accepted, and the President is hereby authorized to execute a contract thereafter. 3. That Right-of-Way Engineering Services, Inc., proposal for surveying services in the amount of $32,660.00 is hereby accepted, and the President is hereby suthorized to execute a contract thereafter. ‘/I ‘0 c 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 4. That John Powell and Associates proposal for construction management services in the amount of $127,960.00 is hereby accepted, and the President is hereby authorized to execute a contract thereafter. PASSED, APPROVED AND ADOPTED at a special meeting of the Carlsbad Municipal Water District held on the 1st day of October I 1996, by the ~ following vote to wit: ~ AYES: Board Members Lewis, Nygaard, Kulchin, Hall and Finnila NOES: None ABSENT: None Al-TEST: (SEAL) CMWD 90-I 09 September 26. 1996 TO: RAY PATCHETT, CITY MANAGER FROM: Bill Plummer, District Engineer i i(7z 7~;:’ ;I:;-;” :,,“‘(:;rf II; I -,-;.j 1. i-1 T’; \/ . UC I .L.‘- MAERKLE RESERVOIR - COVER AND LINER CMWD PROJECT NO. 90-109 - CONTRACT NO. 3388 COMPARISON OF BID TO ENGINEER’S ESTIMATE Attached is a comparison of the major bid items for Maerkle Reservoir - Cover and Liner showing the variance between the engineer’s estimate from Powell & Associates and the contractor’s bid. Major differences between the two include the following: 1. Powell’s estimate was $6,485,000 for construction, but they also included $950,000 for contingencies (IO%), and the..contractor had none. 2. The reservoir cover was $700,000 lower. The bid was prepared based on a Hypalon material. As an option, we allowed the use of a newer material called polypropylene. The manufacturers of polypropylene indicated it was lower in cost than hypalon. However, this cost reduction was greater than expected. The contractor specified polypropylene in his bid. 3. Earthwork was also $560,000 lower, mobilization.was $175,000 lower, the concrete ringwall was $430,000 lower, and the AC liner was $240!000 lower. 4. We noted that the contractor submitted bids on two similar reservoir projects in San Diego County! both involving floating covers. These projects include the Maerkle Reservoir plus a project in Otay Water District. This contractor was low bidder on both projects. There may be some cost savings as a result of both projects being advertised at the same time. Respectively submitted, WILLIAM E. PLUMMER,’ P.E. District Engineer WEP:sjs CMWD 90-I 09 . . -a . . . JW CONTRACTING CORPORATION JWC POWELL 1 CONSTRUCTION ACTIVITY MOBILIZATION EARTHWORK ASPHALT CONCRETE PIPE/MATERIALS WATER SYSTEMS RCP STORM DRAINS RESERVOIR RINGWALL MINOR CONCRETE RESERVOIR COVER ELECTRICAL MISC. UNIDENTIFIED CONST. ITEMS CONTINGENCIES TOTALS: VARIANCE: JWC CONTRACT BID JWD BID + VARIANCE RESPONSIBILITY COSTS COSTS VARIANCE JWC SUBCONTRACTOR SUBCONTRACTOR JWC SUBCONTRACTOR SUBCONTRACTOR JWC SUBCONTRACTOR SUBCONTRACTOR S175.267 S621,120 S688,300 s294,513 S188,049 S164,800 S246,276 S1,296,720 $132,000 $0 so S3.807,045 s349.352 S1.181.375 $926,410 5315,086 $175.030 s594.000 S232,060 52,000,000 $336.500 $308,843 $648,570 S7,067.226 S3,260,181 34,563,OOO S7,823,181