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HomeMy WebLinkAboutContract 48735-CO2 CITY SECRETARY CONTRACT NO... 8 5-C t a FORT WORTH City of Fort Worth Change Order Request Project Namel Mosier Valley Park City Sec# 1 48735 Client Project#(s) CO2306 Project Description Park Improvements at Mosier Valley Park Contractorl Denco CS Corp Change Order# L� Date 11/29/2018 City Project Mgr.1 Carlos M Gonzalez City Inspector EEddie Walker Dept. PARD Contract Time Totals D Original Contract Amount $221,284.00 $221,284.00 170 Extras to Date $1,719.08 $1,719.08 Credits to Date Pending Change Orders(in M&C Process) 28 Contract Cost to Date $223,003.08 $223,003.08 198 Amount of Proposed Change Order $49,467.20 i $49,467.20 Revised Contract Amount $272,470.28 $272,470.28 198 Original Funds Available for Change Orders $0.00 Remaining Funds Available for this CO $0.00 Additional Funding(f necessary) $49,467.20 1 $49,467.20 / CHANGE ORDERS to DATE(INCLUDING THIS ONE)AS%OF ORIGINAL CONTRACT 23.13% MAX ALLOWABLE CONTRACT AMOUNT(ORIGINAL CONTRACT COST+25%) $276,605.00 JUSTIFICATION(REASONS)FOR CHANGE ORDER See Attach Justification. .\A 2 AM FORTi2 _� O (0 r JPO �\ Atte y: ° 0: • ' �-+). �°' G Syse 0 P Mary J. Kays ,oy Sd6etary It understood and agreed that the acceptance of this Change Order by the contractor constitutes an accord and satisfaction and represents payment in full(both time and money)for all costs arising out of,or incidental to,the above Change Order. The Project/Program Manager signing below acknowledges that he/she is the person responsible for the monitoring and administration of this contract,including ensuring all performance and reporting requirements. C tract_�i .atu Denco CS Corp Steven J.Smith - p-1275 Ins "t gisor Date oectMan er/Pro am MarMef Date Assistant irector Date Co nt De Aftici 0, Date As start Ci Ma nage D to Council Action if required) M&C Number NtA M&C Date Approved .�iR® CITY SECRETARY FT NORTH,TX JUSTIFICATION FOR CHANGE ORDER No. 2 During construction, on June 6, 2017, 156 yds of concrete was poured on the existing historical concrete slab per construction plans. On June 19, 2017, the inspector found cracks on the entire concrete slab. On May 30, 2018, the City of Fort Worth (City), Dunaway&Associates LP (Consultant) and Denco CS Corp. (Contractor) met to discuss the cause of cracking on the new concrete slab which was installed by the Contractor at Mosier Valley Park. The possible causes included: construction methods (lack of vibration during installation, stripping concrete forms within 24 hours of installation); and design issues including the fact that the layout plan did not include control joints or expansion joints, and there was no designed separation between the existing slab and new slabs such as sand or another type of barrier. While there was no resolution as to the absolute cause of the cracking, all three parties including the City, the Consultant, and the Contractor agreed to share the cost of repair or replacement. The three parties explored several options to address the cracking including filling the cracks and sealing the surface, sandblast treatment of the surface, and removal and replacement of the new slab. Ultimately, the best course of action was to remove and replace the new slab. On July 13, 2018, the Contractor provided a quote of$74,200.79 to remove and replace the new concrete slab (6,600 SF). Additionally, the price as mentioned earlier includes a barrier separation from the existing concrete, and expansion and control jointing. All parties reviewed the proposal and it was agreed by all parties to proceed with the plan and complete the project. Attached you will find two letters of confirmation in which the contractor and the consultant decided to share the responsibility. The Park& Recreation Department will use funds from all three parties to fund this change order. The Consultant will provide a check to the City of Fort Worth/Park & Recreation Department to pay for their participation. This change order reflects the deducted amount of$24,733.59, which amounts to the contractor share participation. FORT WOR r ti City of Fort worth ,-v-,-- Change Order Additions Project Name Mosier Valley Park City Sec# 48735 Client Project# CO2306 Project Description Park Improvements at Mosier Valley Park Contractor Denco CS Corp I Change Order# Date 11/2912018 City Project Mgr. Carlos M Gonzalez City Inspector Eddie Walker ADDITION5 y Unit Unitos o a i 13M Field est of Demolition-7r-oc—eaure/OH/Insurance/Concrete Mockup Demo Existing oncrete a intallation odepth oncre e Slab Vapor Barrier Tons,SuFg-raTe-17u—sio-77an-d PARD 1.00 PARD $49,467.20 Sub otaAdditions Change Order Additions Page 1 of 1 MIWBE Breakdown for this Change Order MWBE Sub Type of Service Amount for this CO N/A Total $0.00 Previous Change Orders CO# DATE AMOUNT None Total $0.00 DENCO Date 7/11/2018 Construction Specialists " Building Your Future " www.DencoCS.com 5525 Lyons Road;Garland,TK r r• 972.226.0165 Name My Of Fott Worth Mossier Valley Park Address rirgckmpttOrlt at. 11220 Mosier Valley Rd. City Fort tllfotih $we TX 2]P © Fort Worth,TX Contact Qty Description Unit Price TOTAL PROPOSED CHANGE ORDER 7 DEMOLISH AND REPLACE CONCRETE TOPPING SLAB PER OWNER WRITTEN DIRECTIVE 1 LUMP SUM,FIELD TEST OF DEMOLITION PROCEDURE(SEE $2,500.00 $_2,500._00 ATTACHED) 6600 SF;DEMO EXISTING CONCRETE USING SAWCUT AND REMOVAL $2.50 $16_,5.0__0_.00 METHOD DETAILED TO OWNER IN CORRESPONDENCE 7/26/17 (SEE ATTACHED) 6600 SF REPLACEMENT TOPPING SLAB,5'NO FOOTINGS $5.75 $37,950.00 24 TONS,CUSION SAND(RECOMMENDED FOR CUSHION TO SUBGRADE) $20.00 $488.89 6600 SF,15 MIL VAPOR BARRIER(RECOMMENDED ABOVE CUSHION SAND) $0.55 $3,630.00 1 LUMP SUM,BAKER DECORATIVE CONCRETE MOCKUP 2,500.00 $2,500.00 PRICING OF CHANGE ORDERS DO NOT TAKE INTO ~— CONSIDERATION EXTENSIONS OF TIME. Additional time to be added to contract for this scope of work is: _ 7. _ Calendar Days(from date of approval) —~ Additional General Conditions 7 Approved By: Date: —� Approved By: Date: ~ SubSu6 ot $63,568.89 Contractors OH&Fee $9,535.33 Sdao_tal $73,104.22 Insurance at 1.5% $1,096.56 TOTAL ' DENCO CONSTRUCTION SPECIALISTS : "BUILDING YOUR FUTURE " FORTWORTH. October 9,2018 Steve J. Smith,VP Director of Construction Denco Construction Services Corp 5525 Lyons Road Garland,Texas 75043 Subject: Mosier Valley Park Improvements(Project No. 2306) Dear Mr. Smith, On May 30, 2018,the City of Fort Worth (City), Dunaway&Associates LP(Consultant)and Denco Construction Services Corp.(Contractor)met to discuss the cause of cracking on the new concrete slab which was installed by the Contractor at Mosier Valley Park. The possible causes included: construction methods(lack of vibration during installation,stripping concrete forms within 24 hours of installation),and design issues including the fact that the layout plan did not include control joints or expansion joints,and there was no designed separation between the existing slab and new slab such as sand or another type of barrier. While there was no resolution as to the absolute cause of the cracking, all three parties including the City,the Consultant and the Contractor agreed to share the cost of repair or replacement. The three parties explored several options to address the cracking including: filling the cracks and sealing the surface,sandblast treatment of the surface,and removal and replacement of the new slab. Ultimately, it was determined that the best course of action is to remove and replace the new slab. On July 13,2018,the Contractor provided a quote of$74,200.79 to remove and replace the new concrete slab(6,600 SF). Additionally,the aforementioned price includes a barrier separation from the existing concrete,and expansion and control jointing. On August 17,2018,after all parties reviewed the proposal it was verbally agreed upon to proceed with the proposal and complete the project. This letter is a statement of confirmation that Denco Construction Services Corp.will participate in the cost of removal and replacement of the slab in the amount of$24,733.59, with the remainder to be divided between the Consultant and the City. Please sign and return this letter to my attention to demonstrate your concurrence with the above statements. Feel free to contact me at(817)392-5745,or the Project Manager,Carlos Gonzalez,at (817)392-5734 if you have any questions. Sincerely, Lvr�' " - 7�--� QoX L. Q`ctlhany,Capital gram Manager St e J S ith,VP Director of Construction & Recreation D art t Denco Construction Services Corp. cc: Carlos Gonzalez, Project Manager PARK& RECREATION DEPARTMENT City of Fort Worth,4200 South Freeway, Suite 2200,Fort Worth Texas,76115-1499 (817)-392-5700(PARK)Fax(817)-392-5724 FORTWORTH® October 10. 2018 Tal Jackson. ASLA. PLA Dunawav Associates LP 550 Bailey Avenue, Suite 400 Fort Worth.Texas 76107 Subject: Mosier Vallee Park Improvements(Project No. 2306) Dear Mr. Jackson. On May 30. 2018. the City of Fort Worth (City). Dunawav Associates LP(Consultant)and Denco Construction Services Corp. (Contractor)met to discuss the cause of cracking on the new concrete slab which was installed by the Contractor at Mosier Valley Park. The possible causes included: construction methods (lack of vibration during installation. stripping concrete forms within 24 hours of installation):and design issues including the fact that the layout plan did not include control joints or expansion joints,and there was no designed separation between the existing slab and new slab such as sand or another type of barrier. While there was no resolution as to the absolute cause of the cracking, all three parties including the Cite, the Consultant and the Contractor agreed to share the cost of repair or replacement. The three parties explored several options to address the cracking including: filling the cracks and sealing the surface, sandblast treatment of the surface, and removal and replacement of the new slab. Ultimately, it was determined that the best course of action is to remove and replace the new slab. On Jule 13. 2018,the Contractor provided a quote of$74,200.79 to remove and replace the neNN concrete slab(6.600 SF). Additionally,the aforementioned price includes a barrier separation from the existing concrete, and expansion and control jointing. On August 17, 2018,after all parties reviewed the proposal it was verbally agreed upon to proceed with the proposal and complete the project. ']'his letter is a statement of confirmation that Dunaway Associates LP will participate in the cost of removal and replacement of the slab in the amount of$24.733.59, with the remainder to be divided between the Contractor and the City. Please sign and return this letter to my attention to demonstrate your concurrence with the above statetnents. Feel free to contact the at(817)392-5745, or the Project Manager, Carlos Gonzalez. at (817)392-5734 if)oil have any questions. Sincerely, JoecElhany, pita) ogram Manager Tal ack n, A , PLA Park ecreation De nt Dunaway Cates LP cc: Carlos Gonzalez, Project Manager PARK & RECREATION DEPARTMENT City of Fort Worth,4200 South Freeway,Suite 2200, Fort Worth Texas, 76115-1499 (817)-392-5700(PARK) Fax(817)-392-5724 SV%31'Hltlom laoi e a us '1d3a NOI1V3tl73N I MbVd HAOM 1NOd $ m �dMt/NAO` cava A311vn a3lsow ; W ueld SwpUg a a a all ggas =fig g _ W s Y€�= as R os�e Wil I'l € „s zgn g �W� vmu�^ i � � q�5y io�8ItlYa �g k�8 ry6 H w FI 44� M9 3 { \ ✓� 9gs -- IL 8 x f '• I ___ k gl IL U 1 k �\ 0,cyo \ ci a k wo p —y 12w )1g 2V. a k e m m e m e e e e e StlX31'HAOM 1HOi s '1d3a NOI1tl3HJ3H I HHVd H1HOM 1HOd r a Q AVARVNf IG,` )Iavd A311vn a31sow o NV]d ONIlNIOr a ®5 ! K a " ` w g r3 €, m I C) R I Z 3 4 •r3 'r3• '! O F • �E� W 3 Rz yNO ui T a z 3 Og o _ �0�0 S F u,g I � •,'. ao l d° 3m d 0 ra E O ° o d= z 13 (3 f3. g- r S J r O C a � L D � a (•, 5 I Ln Z II 4 R, o 3ulo � o„- ®ou o� u pm $w s ZZ O00 � Contract Compliance Manager: By signing I acknowledge that I am the person responsible for the monitoring and administration of this contract, including ensuring all performance and reporting requirements. Name of Employee/Signature Title I i I, ❑ This form is N/A as No City Funds are associated with this Contract Printed Name Signature OFFICIAL RECORD CITY SECRETARY FT. WORTH,TX