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HomeMy WebLinkAboutAgenda Statement 1977/05/24 Item 13rJ~ CITY OF CHULA VISTA COUNCIL AGENDA STATEMENT ITEM NO 13 FOR MEETING OF: 5/24/77 ITEM TITLE: Resolution 8638 Accepting Bids and Awarding Contract for Storm Drain in Broadway Between "J" and "K" Streets, Block Grant Project SUBMITTED BY~ Director of Public Works/City Engineer 1 ~` i, ITEM EXPLANATION The Director of Public Works received bids in the Engineering/Planning Conference Room at 11:00 am on Thursday, May 12, 1977 for the construc- tion of a storm drain in Broadway between "J" and "K" Streets. This is a Block Grant project. It is part of the "J" Street drainage system which has been built in several stages. The bid proposal was bid with three alternates, using three different types of pipe: Alternate 1 - reinforced concrete pipe; Alternate 2 - corrugated steel pipe; Alternate 3 - Asbestos cement pipe. The City reserved the right to award a contract for any of the three alternates. Bids were submitted by five contractors as follows: ALT #1 ALT #2 ALT #3 Carver Corporation, Santee $47,389.50 $45,317.66 $50,384.66 V.E. Posey, Spring Valley 68,029.50 66,903.50 -- Walter H. Barber & Son, La Mesa -- 62,499.35 -- Cameron Bros. Cons. Co., San Diego 75,964.55 -- -- Metro-Young Cons., San Diego 95,300.00 95,300.00 -- (Continued on Supplemental Page 2) rv~ ur~~Tn ATTA/~1 ~rr~ C~r11D1 I J HI I Hl~r1CU Agreement Resolution X Ordinance Plat Other Environmental Document: Attached Submitted on STAFF RECOMMENDATION: 1. Council authorize transfer of $6,463.22 from Project BG-33, Local Option, to Project BG-27, Broadway Storm Drain. 2. Council authorize the expenditure of $52,000 from Project BG-27. 3. Council award contract to Carver Corporation in the amount of $47,389.50 for Alternate l.A p p R O V E D by the Ci ~y Council COUNCIL ACTION of vilu:~a "v'ista, California, 7...7 ........................ Form A-113 (Rev 5 -75) ,,• ~. Item No. 13 Supplemental Page 2 Carver Corporation of Santee submitted the low bid for all three alter- nates. The difference in bids between Alternate No. 1 for reinforced concrete pipe in the amount of $47,389.50 and Alternate No. 2 for corru- gated steel pipe in the amount of $45,317.66 is $2,071.84. The bid for reinforced concrete pipe is 4.57% above the bid for corrugated steel pipe. The Engineering staff is recommending that the contract be awarded to Carver Corporation for Alternate No. 1, reinforced concrete pipe, in the amount of $47,389.50 for the following reasons: 1. The plans were prepared for the use of reinforced concrete pipe. Substitute materials for corrugated steel and asbestos cement pipe were permitted as alternates . 2. From past experience in the construction of the storm drain in "J" Street, Fifth Avenue and Fourth Avenue south of "J" Street, engineer- ing staff expects to encounter the same soil conditions which were encountered in these projects. These soil conditions were less than favorable and gave rise to additional construction problems. 3. Because of the heavy traffic volumes on Broadway and potential conflict with other underground utilities, the standard lengths of concrete pipe are more suitable for the conditions expected to be encountered during construction. 4. The use of reinforced concrete pipe will decrease the amount of trench excavation to be opened at any one time by the contractor because of the standard concrete pipe lengths of 8 feet. The standard pipe lengths for corrugated steel pipe and asbestos cement pipe are 20 foot lengths. Since the contractor will not have to keep as much trench open at any one time using RCP this will minimize the amount of time that driveways and accesses to businesses along the project will be disrupted due to trench excavation. 5. The increased cost in the use of reinforced concrete pipe in the amount of $2,071.84 will be offset by the decrease in future mainte- nance costs to the storm drain. The anticipated decrease in construction time will also decrease the public's costs in inconvenience and time delay. Carver Corporation's bid of $47,389.50 for Alternate 1 is 14% below the Engineer's Estimate of $53,800. FINANCIAL STATED4ErdT Low Bid for Alternate Contingencies Total Funds Required Unencumbered Funds in Amount to be Transfer Project BG-33 #1 $47,389.50 4,610.50 $52,000.00 Project BG-27 $45,536.78 red from 6,463.22 Total Authorized Expenditure Requested $52,000.00 The Community Development Department concurs and recommends this trans- fer of funds from Project BG-33 to BG-27. Form No, F-229 1/73 CERTIFICATE CF CITY/DIRECTOR OF FINANCE Certification of Unappropriated Balance I HEREB`I CEP.TIEY that the money required for the appropriation of funds for the purpose set forth i,~ the attLLc~:ed. resolution is available in the Treasury, or is articipat:ed to come into the Treasury, and is otherwise unappropriated. Amount ~ Purpose Eidder ~~und Director of Fir.=.. ce The City of Chula 'diSta late By Certification of Unencumbered 3alance I iiF.REBY CEkTIFY that the indebtedness and cblig:~tion to be incurred by the contract or agree~r;ent autf:ori zed bjT •t'_?.t': attached resolution can ne incurred T~uitr.aut the violation of any cf Lhe provisions of the Charter of the City cf Chula Vista, o~- t:?^.e Constitution or the ?:~ws of the St~:te cf Ca' iforr~ia, tf.a sufficient monies have been appropriated for the pu=pos~~ of :sui~: oontract, that sufficient monies to meet the oblig~3tio^s of t;-~.e contract are actually in the Treasury, or ars atzticipatec; to ccA~,, into the T_~easary to the .credit of the appropriation iron whi.,'r: tho same are to be dra,~m, and that saicr ponies now actuaiiy ~n thy. Treasury, together with the monies anticipated to come i:~t0 the Treasury, t:o the credit of said appropriation a_e othsLw=.s~_ unercu.^ibered. Amount Not to E'XCeed S 52 000.00 630 6300 BG 27 7~ _ _ $6,463.22 transferred from ~~Direc*c-r of Frar~ry ~._.e C~.ty of hu a Y' ~~ca. Project BG 33 Date 5/19/77 By L F,~.nd B1 ock Grant ~p T ~.G Dept./Activity Block Grant Purpose Storm Drain in Broadway Between J and K Bidder Carver Corporation ~~e~ti_"i.~w~f ?~a. ._.._______ 6.7...___ ..