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HomeMy WebLinkAboutC22870B CO1 and 2 Portola Avenue Bridge at Whitewater 647-04CITY OF PALM DESERT PUBLIC WORKS DEPARTMENT STAFF REPORT REQUEST: Approve Contract Change Orders 1 and 2 to Contract No. C22870B with Granite Construction Company for the Construction of the Whitewater Bridge at Portola Avenue (Project Number 647-04). SUBMITTED BY: Mark Greenwood, P.E. Director of Public Works CONTRACTOR: Granite Construction Company 38000 Monroe Street Indio, California 92203-9500 DATE: February 23, 2006 CONTENTS: Contract Change Order 1 Contract Change Order 2 with Revised C-11 Vicinity Map Recommendation: By minute motion, approve the following Contract Change Orders to Contract No. C22870B with Granite Construction Company required for the construction of the Whitewater Bridge at Portola Avenue: 1. Contract Change Order No. 1 for additional work required for traffic control and demolition in an amount not to exceed $80,000.00. 2. Contract Change Order No. 2 for a change in the relocation of telephone conduits for an estimated credit to the City in the amount of $134,157.00. Discussion: On July 14, 2005, City Council approved Contract No. C22870B with Granite Construction Company in the amount of $10,046,046.00, plus a 10% contingency, for construction of the Whitewater Bridge at Portola Avenue. The Notice to Proceed with construction was issued on August 22, 2005. Construction is progressing well and the eastern portion of the bridge is scheduled to be completed and open to traffic in May 2006. The entire bridge is currently on schedule to be completed by May 2007. Contract Change Order No. 1 is for additional traffic control work required to improve the safety of motorists driving through the construction site. This work includes the Staff Report — Contract Change Orders 1 Page 2 of 2 February 23, 2006 & 2 to Contract C22870B Granite Const. installation of crash cushions, delineation, and signs not previously identified in the contract documents. In addition, Contract Change Order 1 includes additional work to remove and dispose of undocumented reinforced concrete and asphalt pavement of original channel road that was encountered during excavation for bridge pier footings and that may be encountered during excavation in the next phase of bridge construction. The work will be paid on a force account (time and materials) basis. Contract Change Order No. 2 is for a change in the alignment and deletion of work related to the installation of Verizon conduits through the new bridge. This change deletes the work of Bid Item No. 6, Relocate Telephone Conduits in the amount of $375,000 and in lieu specifies that Verizon will install the conduits and pull boxes on both approaches to the bridge and the conduits within the bridge sidewalk will be installed by the contractor, on a force account basis, in the estimated amount of $95,287. Verizon will reimburse the City via a separate agreement for the actual costs to install the conduits within the bridge. The contractor will be also paid the fixed amount of $145,556 for project bid costs that were included in Bid Item 6. The City consultant construction manager hired a firm to audit the contractor's bid documents and verify that these project costs were included in Bid Item 6. This results in an estimated credit to the City in the amount of $134,157 for installation of the telephone conduits. The Coachella Valley Association of Governments (CVAG) will be contributing 50% of the project costs, including these change orders. Funds for these Contract Change Orders are available in the project account. Staff, therefore, recommends that City Council approve Contract Change Orders 1 and 2 to Contract No. 22870B with Granite Construction Company. Submitted By: Jo A. Garcia, P.E. Engineering Manager Approv Homer Croy ACM for De opment Services Carlos Orte City Manager JG:dhl Departm nt cad :z: Mark Greenwood, P.E. Director of Public Works Paul Gibsdn Finance Director G:lPubWorkslStaff Reportsk20061February 2311 Approve CO 1 and 2 Granite C226706PorYota Bridge 647-0414pprove CO 1 and 2 Granite C22670B.doc CITY OF PALM DESERT CONSTRUCTION CHANGE ORDER Project Description: Whitewater River Bridge at Portola Avenue P.O. # 12484 Contract # C22870B Project # 647-04 Contractor Name Granite Construction Company Contractor Street Address 38000 Monroe Street Vendor # 1010 City, State, Zip Indio, CA 92203-9500 Contract Change Order # 1 Pursuant to the terms of the original contract Agreement, you are hereby directed to make the herein described changes or do the following described work not included in the plans and specifications for this Contract. Unless otherwise stated, all work shall conform to the terms, general conditions, and special provisions of the original contract. _DESCRIPTION OF CHANGE On a Force Account (Time and Materials) basis: 1. Provide additional traffic control as requested by City including labor & material, per written order of the Engineer, including crash cushions, signs, and delineation to improve safety. 2. Remove and dispose of as required, undocumented buried reinforced PCC and AC pavement of original channel road discovered at Pier No's 2, 3 and 4, Stage 1 and that may be encountered during Stage 2 construction. Payment shall be on a force account basis in accordance with the General Specifications in an estimated amount not to exceed $80,000. Contingency used? (circle one) � No If yes, amount moved to base: I $ 80,000.00 Contract Amount (include past change orders) $10,046,046.00 Plus/Minus Current Change Order $ 80,000.00 Revised Total Contract Amount $10,126,046.00 1. ORDERED BY: Department Head 3. APPROVED BY: City Manager Date Increase/OeGFease in Amount I $80,000.00 Increase/Decrease in Days No Change Contract Date of Completion 05-03-07 Plus/Minus Current Change Order No Change Revised Date of Completion 05-03-07 2. CERTIFIED FUNDS AVAILABLE Director of Finance Date 4. APPROVED BY: City Council Date We, the undersigned Contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide all materials, perform all labor, except as may be noted above, and perform all services necessary to complete the above specified work, and hereby accept as full payment the amount shown above, which includes all direct and indirect overhead expenses fort any delays. ACCEPTED BY: Contractor/Vendor Date 1 CITY OF PALM DESERT CONSTRUCTION CHANGE ORDER Project Description: Whitewater River Bridge at Portola Avenue P.O.# 12484 Contract # C22870B Project # 647-04 Contractor Name Granite Construction Company Contractor Street Address 38000 Monroe Street Vendor # 1010 City, State, Zip Indio, CA 92203-9500 Contract Change Order # 2 Pursuant to the terms of the original contract Agreement, you are hereby directed to make the herein described changes or do the following described work not included in the plans and specifications for this Contract. Unless otherwise stated, all work shall conform to the terms, general conditions, and special provisions of the original contract. _DESCRIPTION OF CHANGE Bid Item No. 6, Relocate Telephone Conduits in the amount of $375,000 is deleted in its entirety and the relocation and payment of telephone conduits is revised as follows: Contractor shall furnish and install eight (8) 4-inch schedule 40 PVC conduits in bridge sidewalk within the limits shown on attached revised Drawing No. C-11. All applicable contract specifications related to this work shall apply. Verizon will be responsible for the installation and cost of the remainder of the conduits, pull boxes, and connection to its facilities on the north and south side of the bridge as noted on Drawing No. C-11 as work done by "others." The above work shall be paid on a force account basis in accordance with the General Specifications for the estimated amount of $95,287. In addition, the contractor shall be paid the amount of $145,556 that has been verified as project bid costs contractor included in Bid Item #6 (mobilization, general account, overhead, potholing, and electrical work). The reminder of the Bid Item #6 amount, estimated to be,$14,157, will be credited to the City. Contingency used? (circle one) Yes QJNJO I #w&-9a /Decrease in Amount $134,157.00 If yes, amount moved to b; I I Increase/Decrease in Days No Change Contract Amount (include past change orders) $10,126,046.00 Plus/Minus Current Change Order $ 134,157.00 Revised Total Contract Amount $ 9,991,889.00 1. ORDERED BY: Department Head 3. APPROVED BY: City Manager Date Contract Date of Completion 05-03-07 Plus/Minus Current Change Order No Change Revised Date of Completion 05-03-07 2. CERTIFIED FUNDS AVAILABLE Director of Finance Date 4. APPROVED BY: City Council Date We, the undersigned Contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide all materials, perform all labor, except as may be noted above, and perform all services necessary to complete the above specified work, and hereby accept as full payment the amount shown above, which includes all direct and indirect overhead expenses fort any delays. ACCEPTED BY: Contractor/Vendor Date • W r� 41 " � t Vim VI aw ^a. 4 " "L {p{p�NO 1 IS 11 12 1 14 TELEPHONE CONDUITS 8-TELEPHONE 4" BY OTHERS 8 4" TS ____ t-KTERCEPT MH MH BY BY OTHERS - / OTHERS n a of- al Ij wI II ii j PORTOLA AVE 1 20 m 8-4" TELEPHONE I o CONDUITS IN / r1l + BRIDGE SIDEWALK' i it NI ® / / DETAIL CFl / / 49'-6 12" TO PORTOLA AVE FOR BARRIER FEINT -' MOFFATT 2 NICHOL / fL SEE SHEET SR -II IRVINE, CAUFORNIA aolEsslav _9.. o ° / TV J SPACES ® 6Y2" ae m ° AL ELY VARIES = 3'-9 112' GISTCP P C-L cum ncc ,�, 18880 / OVA NORTH o ass a o re IW 2 1 END OF c G.°6-30-0 3.T BRIDGE MAY 5 2005 uvu r r r j_ I caeorx a tre � uu<oG•a i�ai Cl €'S f� 50'-0" TO ¢ PORTOLA AVE I 0 8-4" SCHED 40 PVC YR/W BEYOND 49-6 1/2" TO fV PORTOLA AVE CONDUITS (GT42) 0 7 ���©®©� j FUTURE 44'-0" iY CURB A 6 1/2 NOTE SEE SHEET C-13 FL PORTOLA AVE LINE III w FOR SIGNAL CONDUITS ^ SECTION 111 I^ (TIP AT BRIDGE DECK)Ht Y/i ,ia uI PORTOLA AVE z 1/2 =1 -O 8 SCHED 40 PVC 4J m t/ w CONDUITS (GT42) ®® Ir3 0 6 1/2" nl _ - / _ �� EDGE OF 0® = t'-J i/2'. �— m N5 X �-I ® I8" 5- 4 X 0 12' OC LONCIT 05 © FUTURE ®(}---IIL.. IN I6 IT ( A ) 18 (gOJU ST TO CLEAR CONDUITS) STORM DRAIN DETAIL Fi 8-4" TELEPHONE Y ' o p5 0 18" O® INLET I/ CONDUITS IN V1 0© EXTENSION 3' MIN j11 BRIDGE SIDEWALK + p6 0 12- N6 0 12`-1 I COVER (TYP) _ m _ _ TYPICAL 48'-6" TO L BARRIER PORTOLA AVE CONCRETE 2 o rT rY6 n�nA / J REINF � I ENCASEMENT p5®1e" SECTION a-NS CONT E { N-0 0 12 49'-6 1/2" TO m / p5 0 12"' // /�� X (L PORTOLA AVE i R/W BEYOND p8 0 6"�m t -8 12 36' i PROVIDE CONDUIT EXP �/ {o / B SECTION p5 X 12Im 0 12" FITTINGS AT BRIDGE ENDS, YPi \J T, SEE CALTRANS STD j 4 1/2 -t -D PLAN ES-913 A ®qool CONCRETE ENCASEMENT c T) ld G" MIN \ \ V� COVER Y'=40' �I - - D SECTION (ivP) \ NOTE FOR REINF L I-�� Y-e' t2" NOTE: DETAILS SEE SECTION O i CONCRETE ENCASEMENT SHALL HAVE A MIN DAY /\\ C SECTION COMPRESSIVE STRENGTH OF 2500 PSI WITH I" MIN AGGREGATE �POR TOLA AVE 1 END OF gH-�—I EB 1 �--�ROADBED BACKFgCE SLAB AT ROADBED T I OF ABUT CURB LINE 1 8-4" TELEPHONE CONDUITS �21 I I 1 I TELEPHONE CONDUITS �2 23 2�4 25! -12-a" TELEPHONE 26 1 /- END OF APPROACH BY OTHERS CONDUITS - �- - _ r SLAB AT SIDEWALK ______________ __ W << 4-4" TELEPHONE J CONDUITS MH BY w OTHERS x > INTERCEPT MH� BY OTHERS / / �'-2-4' TELEPHONE / CONDUITS ' BYOOTHERS I � � YYY E IPRELIMINARY I DETAIL(F), DETAILO SIMILAR CONSTRUCTION CHANGE ORDER NO. NO SCALE DATE: _ BENCHMARK: °`"4N O' CITY OF PALM D066RT APPROVAL OF MIS DRAIWNG SYC VWD IS ONLY I I C.VW.D DRAWINGAPPROVAL I ORAwn G -.m..�, . �14,IT1111IT I— o.<rz a.. � CITY OF PALM DESERT ND ln.m.w�..m�wwo H N UU YEN FOR RIGHTOFWAY I I /�� / "•` ('� ELEVATION 163 i25 AGVp 1929 °"..n °. FOR ENCROACHMENTPERAl1TNO 050616-2434 G IY IP�ITy/ 2T JUNE 05 C-1� I, 1 APPROVAL OF MIS DRAWINGBYC VIVO DOESNOT I I '"'°xf0i WHITEWATER RIVER BRIDGE AT PORTOLA AVE BASIS<OwF ft A�RoNGa:M w�KNu.r. T ALSTON $ 21NCLUDEAPPROVALOFANYSMUCTURALITEAIS.NOI., I ¢' I PNDJECT Exe WEER <"`<"° eEe i�mo. = c s,3e� /z) REVISE FOR coN StGeHANCF ORDER 9/19*OS I °ECOm 119E0 LII _ ,, ,,/ / TELEPHONE CONDUIT RELOCATION sH66r11R1 ani)°i ."°m''°°w�"m'a..'v"m ° uvxx c 1 %1\ ADDENDUM NO2 Ill IYY-�1 y�°N 01 OF �/ APPROVAL OFANY PORTION OFTNE PROJECTASTO �mn�m es n<ww w... m°m..rzs G LIM THEADEOUACYOFITSINTENOEDFUNCRON. I nc o e nv»ov[u 3364T TOTAL 35 33647