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Home My WebLink About4.16 Civic Center Change Order w ' (000- CITY OF DUBLIN AGENDA STATEMENT CITY COUNCIL MEETING DATE: April 10, 1989 SUBJECT Civic Center - Change Order Request EXHIBITS ATTACHED Contract Change Order No. 62 RECOMMENDATION Authorize City Manager to execute Change Order FINANCIAL STATEMENT: The execution of this Change Order will add an additional 16 days to the contract date and cost a total of $13, 084. DESCRIPTION This Change Order involves 2 issues . The first issue involves the need to upgrade the corridor supports in both the Administrative and Police Wings of the building. The contract drawings prepared by the Architect originally indicated that the corridor walls were to be 25 gauge steel stud framing. However, subsequent calculations prove that the steel studs needed to be upgraded to 18 gauge. The cost of making these structural modifications total $8, 318 . The second additional cost resulted in response to the Staff' s request to maximize the amount of storage space available for both the Administrative and Police Wings of the Civic Center. Through modifications to approximately 4 stairwells, an additional 200 square feet in storage space has been achieved at a total cost of $4, 766 . As a result of these 2 additional changes, the Contractor has requested an extension of 16 days to the contract. This extension would increase the contract deadline to April 26, 1989 . Since the contract extension and the total amount of the contract change order exceed $25, 000 in value, this change order must be approved by the City Council . It is Staff' s recommendation that the City Council authorize the City Manager to execute Contract Change Order No. 62 . ------=------------------------------------------------------------------- i COPIES TO: ITEM NO. -t, "d 6 RECEIVED MAR 2719T), CITY OF DUBLIN DUBLIN CIVIC CENTER ---------------------------------------------------------------- ---------------------------------------------------------------- CONTRACT CHANGE ORDER NO. 62 ---------------------------------------------------------------- ---------------------------------------------------------------- DATE: March 2 , 1989 OWNER: City of Dublin Mr. Richard Ambrose ( 415 ) 826-4900 CONTRACTOR: Dickman-Nourse , Inc . Mr. Henry K. Nourse , III ( 415 ) 967-7866 CONSTRUCTION Harris & Associates MANAGER: Ms . Susan Hyler (415 ) 828-1571 ARCHITECT: George Miers & Associates Mr. William Hoffmann (415 ) 896-0305 ----------------------------------------------------------------- I . DESCRIPTION OF CHANGE: Item A 1 ) (Reference detail A/A9 . 11 , 1/SD3 , Item 5 DNI Letter No . 272 ) Furnish and install 18 gauge structural studs ( 18xHD400 @ 16" O.C . TYP) for the vertical corridor wall in lieu of the 25 gauge studs as detailed on sheet A/4 . 2 . The structural studs for the planters and attachment to the 2nd floor deck has not been modified. 2 .) (Reference detail B/A9 . 11 , 4/SD3 , Item 3 DNI Letter No . 272 ) Furnish and install the 18 cauce structural studs (Angeles C� 0 ZD 18xHD400 @ 4 ' -0" O.C . Max ) for lateral support of the wall below the sloped glazing . 3 ) (Reference detail C/A9 . 11 , 7/SD3 , Item 6 DNI Letter No . 272 ) Furnish and install 18 gauge structural studs (Angeles C� 18xHD400 studs @ 16" O. C . ) in lieu of the 25 gauge studs as indicated on the plan view; for the vertical corridor wall to the knee joint . Contract Change Order No . 62 - City of Dublin Page 1 4 ) (Reference F/A9 . 11 , 5/SD4 , Item 2 DNI Letter No. 272 ) Furnish and install 20 gauge structural studs (Angeles 20HDS358 ) in lieu of the 25 gauge studs as indicated on the plan view for the stud wall along line W for rooms P150 and P151 . 5 ) ( Reference 5/SD4 , Section B-B, Item 2 DNI Letter No . 272 ) Furnish and install 16 gauge structural studs (DBL16xHD400 ) for beam between planter sections (4 ea. ) 6 ) Additional engineering cost to review: a) 25 gauge studs to see if sufficient for corridor walls b) 2-1/2" studs for facia soffit c ) support of planters in room P151 7 ) (Reference detail 2/SD3 , Item 4 DNI Letter No. 272 ) Furnish and install 2-1/2" 16 gauge structural studs for the connection to the second floor- deck in lieu of the 4" 18 gauge structural studs as detailed on the contract drawings . Item B At Stair Nos . 1 , 2 , 4 , and 5 , convert the -dead space beneath the stairs to usable storage space by doing the following : Add a one-hour rated sloping ceiling under the stair constructed of 5/8" Type X gypsum board supported on 2-1/2" x 25 ga. studs at 16" o. c . spanning from existing wall to existing wall at either side of the stair. Extend the sloping ceiling down to within 2 ' -0 of the floor, and end it at that point with a vertical wall to the floor. The floor and wall covering is to be the same as adjacent storage space . Provide access to the new storage space as follows : 1 ) At Stair #1 , delete a portion of the stud wall between Storage Room 145 and the new understair space. 2 ) At Stair #2 , delete the stud wall between Storage Room C162 and the new understair space. 3 ) At Stair #4 , delete the stud wall between the new expanded Mud Room 0105 and the understair space . 4 ) At Stair 7#5 , delete the stud wall between Storage Room P15.3 and the nei-._-t�.1-- erst.air space . Contract Change Order No . 62 - City of Dublin Page 2 II . JUSTIFICATION OF CHANGE: Item A: The contract drawings originally indicated the corridor walls to be 25 gauge stud framing ; however, the calculations provided, as required for the 18 gauge studs at the planters , sloped glazing and sloped gypsum board, demonstrated that the 25 gauge framing for the vertical walls in the corridor would not support the heavier gauge framing for the work above it. Therefore, the 25 gauge studs were required to be changed to 18 or 16 gauge studs . Item B: In order to maximize the amount of storage space available for both the City Hall and Police Facility, the City requested the area under the stairs be modified to provide additional storage . III . COST OF CHANGE: Item A: Line E & W Structural. Stud Modifications Total Add $ 8 , 318 Item B: Storage Space- Under Star -Nos . 1 ; 2 , 4 and 5 Total Add $ 4 , 766 TOTAL THIS CHANGE $13 , 084 ADJUSTMENTS IN CONTRACT AMOUNT: A. Original Contract $ 9 , 695 , 000 . 00 B. Previous Change Orders 117 , 809 .00 C . Current Contract 9,812 , 809 . 00 D. This Change Order 13 , 084 . 00 E. New Contract Amount 9 ,825 , 893 . 00 V. ADJUSTMENTS IN CONTRACT COMPLETION: A. Original Duration: 440 Calendar Days B. Original Completion Date: April 10 , 1989 C. Previous Extension: -0- D. Current Duration: 440 Calendar Days E. This Extension: 16 F. New Duration: 456 Calendar Days , G. New Completion. Date : .April 2E.; 1989 Contract Change Order No . 62 - City of Dublin Page 3 VI . CONDITIONS OF CHANGE ORDER: It is understood and agreed that this Change Order provides full compensation to the Contractor for all claims arising out of the changes constituting the subject matter of this Change Order and that this Change Order is pursuant to and in accordance with other relevant provisions , conditions and requirements contained in the Contract Documents. ACCEPTED: RECOMMENDED FOR ACCEPTANCE: CONTRACTOR: CONSTRUCTION MANAGER: Dickman-Nourse , In//c . Harris & Associates /U �� By g Y• � • Henrf K. Nourse , III Susan Jer Date : 3 Date : OWNER: ARCHITECT: City of Dublin George M' ers` & Associates By: By:_t.i. Richard Ambrose William Hdffmann Date : Date : Contract Change Order No . 62 - City of Dublin Page 4