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HomeMy WebLinkAboutAgenda Statement 1979/06/05 Item 08ITEM T~: SUBMIT' ITEM E; CITY OF CHULA VISTA COUNC 1 L AGENDA STATEMENT ~ Item No. $ „_ // For meeting of 6/5/79 Resolution 9~0~~ Accepting Bids and Awarding Contract for the Construction of a Storm Drain TLE System from Alvarado Place to and Beyond "H" Street, Chula Vista, California 'ED BY City Engineer {PLANATION (4/5TH'S VOTE REQUIRED YES NO x ) At 11:00 a.m. on May 10, 1979, in Conference Room 5, the City Engineer received sealed bids for "The Construction of a Storm Drain System from Alvarado Place to and Beyond "H" Street, Chula Vista, California." The scope of the work included installation of storm drain pipe, inlets, curb, gutter, sidewalk, drainage channel connection, asphalt paving, property restoration and other miscellaneous items of work. The City Council at the meeting of December 19, 1978, rejected bids received for construction of this project. Since the bid price was 42.6 above the amount budgeted for construction, staff recommended rebidding the project with alternatives to the original project. At that time it was staff's determination that the extraordinary high cost was not justified in relation to the benefits received. Three separate alternatives were bid. Each alternative had a different scope of work and offered different levels of protection against flooding: S :nr/AN-004 reement Resolution x EXHIBITS continued on supplemental page Ordinance Plat x Notification List ther ENVIRONMENTAL DOCUMENT: Attached Submitted on FINAN IAL IMPACT Cost of the project is being financed with Revenue Sharing Funds. City will assume maintenance of the improvements upon completion o the project. STAFF RECOMMENDATION 1. City Council aL?thorize the expenditure of $92,848 from "Storm Drain - Alvarado Place to Channel South of "H" Street," Project RSO4, Account #600-6000-RSO4. 2. City Council accept-bids and award contract to Mike Nlasanovich Construction Co. Inc. in the amount of $84,408..00 for Alternate #2. BOARd/COMMISSION RECOMMENDATION ._._-- COON I L ACTION ~ ______.~.-- by {tie Ci.;~ ,o~~~+~,~i; c~ CilUla ~`ist~, (-riiF::'t'r13 Agenda Item No. 8 , For Meeting of 6/5/79 . Supplemental Page Two Alternative 1. Was the ultimate project from Alvarado Place through a private easement to "H" Street and from "H" Street to the Central Basin Project southerly of "H" Street. Alternative 2. Extends from Alvarado Place to an existing concrete open channel wk~ich continues west to Corte Maria Avenue . Alternative 3. Primarily was to provide additional catch basin capacity on Alvarado Place and extended 56 feet west of the end of Alvarado Place tying into the existing 24-inch diameter pipe. Bids received from three contractors were as follows: BIDDERS ALTERNATE ~l ALTERNATE #?_ ALTERNATE #3 1. Mike Masanovich $137,?_33.00 $ 84,408.00 $ 47,096.50 Construction Co., Inc . , Arcadia , CA 2. M. Arrieta & Son, $159,052.00 $ 95,382.00 $ 52,477.00 Inc., E1 Cajon, CA 3. Cameron Bros. $153,922.00 $101,743.50 $ 74,278.00 Construction Co., Inc., San Diego, CA Engineer's Estimate $138,486.00 $ 81,866.00 $ 49,076.00 ANALYSIS: ALTERNATIVE 1 ADVANTAGES. (a) The advantage of this alternative is that it would complete the storm drain system as outlined in the Fogg Report (City's Master Drainage Study) and would definitely eliminate any flooding due to a ten year frequency storm both in Alvarado Place and portions of Corte Maria and "H" Street. This alternative would also use an existing pipe installed under "H" Street many years ago in anticipation of this construction. DISADVANTAGES. (a) The cost is much higher than anticipated by the CIP Committee. (b) A portion of this project will be very difficult to ~~~~ Agenda Item No. 8 For Meeting of 6.5 79• Supplemental Page~Three construct and severely disrupt many of the back yards in this neighborhood. (Staff has a slide to demonstrate this fact.) ALTERNATIVE 2 ADVANTAGES. (al 'this alternative w©uld complete the ten year design storm and remove the inadequate 24-inch storm drain that presently exists between Alvarado Place and the concrete channel (see sketch). (b) This system would be designed so that in the future the project could easily be extended and completed as proposed in Alternative 1. (c) Although there would be some disruption to private property, this alternative would be considerably less disruptive than Alternative 1. (d) This project can be completed within the budgeted funding . DISADVANTAGES (a) This alternative would not complete the final ultimate project as recommended in the Fogg Report. (b) Although not as serious as Alvarado Court, there would still be street flooding on Corte Maria and "H" Street. (c) This alternative is considerably more expensive than Alternative 3. ALTERNATIVE 3 ADVANTAGES (a) This alternative is the least expensive of the three alternatives. Although this alternative will not carry a 10-year design storm, it will increase the capacity of the existing storm drain system by about 50$. (b) This alternative would be the least disruptive to private properties. (c) This alternative could be fully incorporated into the ultimate project in the future. ~~ Agenda Item No. 8 For Meeting of 6 5,79 Supplemental Page Four DISADVANTAGES r.~~ "V (a) This alternative would not complete the ultimate design project for this drainageway. (b) There still may be flooding of the garages at the end of Alvarado Court even though the .frequency of that flooding would be greatly reduced. Engineering staff recommends that the contract be awarded to construct Alternative 2. This alternative can be constructed within the budgeted amount for the project. It will install a significant portion of the originally intended ten year desig n project and also use an existing concrete channel that has adequate capacity for a ten year flow. Under this alternative the frequent flooding of the garages at the end of Alvarado Place would be eliminated entirely for a storm with a ten year frequency. Corte Maria and "H" Street will still receive the water as they do now, however, it is staff's opinion that this will not be unduly restrictive to traffic and this alternative will not flood any residences. Should it be determined in the future that the amount of water on Corte Maria and/or "H" Street is unacceptable, then this project can be expanded to Alternative 1. A transparency and slides are available for Council viewing. FINANCIAL STATEMENT: Revenue Sharing funds in the amount of $101,300 were budgeted in the 1977-78 Capital Improvement Program for "Storm Drain -Alvarado Place to Channel South of "H" Street" project RS-04. Sufficient funds are available to construct Alternate ?.. ESTIMATED CONSTRUCTION COST Storm Drain - Alvarado to Channel $84,408 South of "H" Street Contingencies 10~ (approximate) 8,440 Estimate Total Construction Cost $92,848 Unencumbered funds in "Storm $93,050 Drain-Alvarado Channel South of "H" Street, RS04 -------- Balance in Project RS04 $ 202 i I I ' ,; ~ I' ~ ~ „~„ i, I, ~ ~ ~ , iI I I -~ ~_. ~_ ~~ e J W _~ ll ~~ H ~~ EXISTING CNANNEL'S~ _ ~ 1 t i ~ ~ I I ~ , _~ _~_~_1_~ ~ I ~ I ' ~ 1 ' STREET - ~ O J ETA _~ SHASTA AL ERNATE 1 -~--- ..~. A ERNATE Z - A ERNATE 3 -._ - . ~ M1aP 3195 ' --~ ? ~ ~ ~. --r ~ ~ ~ T ~ `/ ~ 1 1 i U ~ ~ ~ ~ , ~ r STREET I ~3Cfl", R.G,P. 1 ~ -' - - ~ ~ i I- - - -- STR T ---- ' _ _ _ Q J Q V h ~i ~~ Revis d Drawn T.L. Date +-3~--,~ CITY OF C H U LA V f STA Approved Date DEPARTt~1ENT STORM U~,1~i- Number a~v~tz.doa puc.~ T~ Ct~NUCL, SOLrTU ~~ "~.{,. ST. ~ ' w i i - - -- --- cRESTA wY.• > I ~. U STREET _~ ~ ', i ~ } I i ' l_! _~_ ~__ ~ ' 3 ~ ^ ~ ---p.. ~.~. ~ ~ ~~ - - ~ i w Q h A IJ ----- - = ~ ~ D ~ 2005EVEL ~ VI fl, m~ - _'p ~ ' .Q d J ~' °c P~vARADO - N ~O ~ Q ~ Q - ~C ~ ~( Q E L Form No. F-229 12/73 CERTIFICATE OF CITY/DIRECTOR OF FINANCE - Certification of Unappropriated Balance I HEREBY CERTIFY that the money required for the appropriation of funds for the purpose set forth in the attached resolution is available in the Treasury, or is anticipated to come into the Treasury, and is otherwise unappropriated. Amount S Purpose Bidder 0 RS 04 Director of Finance The City of Chula Vista Date By Certification of Unencumbered Balance I HEREBY CERTIFY that the indebtedness and obligation to be incurred by the contract or agreement authorized by the attached resolution can be incurred without the violation of any of the provisions of the Charter of the City of Chula Vista, or the Constitution or the laws of the State of California, that sufficient monies have been appropriated for the purpose of said contract, that sufficient monies to meet the obligations of the contract are actually in the Treasury, or are anticipated to come into the Treasury to the credit of the appropriation from which the same are to be drawn, and that said monies now actually in the Treasury, together with the monies anticipated to come into the Treasury, to the credit of said appropriation are otherwise unencumbered. Amount Not to Exceed S 92',848.00 600 Date --- _6/1/79 _ --- BY Fund ~= .~ /%;~ Director of Finance The City of Chula Vista Fund CIP Dept./Activity CIP Purpose Storm Drain Alvarado Place to H Street and Beyond ~~~~ Bidder Mike Masanovich Construction Co., Inc. Certificate No. 84