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Home My WebLink About2013-153 Board of County Commissioners a p /r3 _ /,3` 2 180127th Street Vero Beach, Florida 32960 Telephone : (772 ) 567=8000 FAX: (772 )-778-9391 Field and Laboratory Quality Control ( QC ) for 66th Avenue Roadway Improvements, Phase 2 (4th Street to 16th Street) IRC Project No. 9810B AMENDMENT NO , 1 to WORK ORDER NO , 1 FOR FOR PROFESSIONAL GEOTECHNICAL SERVICES AGREEMENT FOR ANNUAL GEOTECHNICAL SERVICES CONTRACT RFQ No . 2010021 WITH DUNKELBERGER ENGINEERING AND TESTING , INC . All services performed under this contract shall be supervised and certified by a licensed Professional Engineer ( PE ) registered with the State of Florida and staff employed directly with your firm . Scope of Services All work shall be performed on a unit price basis in accordance with the attached Scope of Services ( Exhibit A) dated August 6, 2013 and shall comply with Standards enumerated in the ANNUAL GEOTECHNICAL SERVICES CONTRACT, RFQ 2010021 WITH DUNKELBERGER ENGINEERING AND TESTING , INC. Effective Date : March 2, 2010. Minimum Specification Requirements as follows : Soil Compaction Standard modified Proctors Limerock Bearing Ratio ( LBR) Concrete Compressive Strength Testing Laboratory testing Engineering reporting All work shall also comply with the current Florida Minimum Technical Standards. P:\Public Works\ENGINEERING DIVISION PROJECTS\981013-66th Ave Ph 2 4th St hi 16th St\Admtm\agenda items\Amendment No. I DIINKELBERGP..R 8.20. 13 mm.doc Amendment No. 1 to Work Order No. 1 66th Avenue Roadway Improvements, Phase 2 (4th Street to 16th Street) IRC Project No. 98108 COMPENSATION . The COUNTY agrees to pay, and the Geotechnical Professional agrees to accept, a fee for services rendered according to the " Scope of Services" identified in the attached EXHIBIT "A" . A NotAo- Exceed Amount of: S42,060.00 to be paid on a unit price basis for actual work performed in accordance with the schedule of services and fees set forth in Exhibit A of RENEWAL OF THE ANNUAL GEOTECHNICAL SERVICES CONTRACT, RFQ 2010021 WITH DUNKELBERGER ENGINEERING AND TESTING , INC. Effective Date : March 3, 2013 TIME FOR COMPLETION This Amendment No . 1 to Work Order No . 1 shall run concurrently with the construction work for the 66th Avenue Roadway Improvements, Phase 2 (4th Street to 16th Street ) IN WITNESS HEREOF the parties hereto have executed these presents this 20th day of August , 2013 . OWNER DUNKELBERGER ENGINEERING & TESTING, INC. BOARD OF COUNTY COMMISSIONERS INDIAN RIVER COUNTY, FLORIDA •�;� C0MA418 i os h E. Flesher, Cha rman :�rCraig . Dunkelberger, P. E. * :• a Approved by BCC 08-20- 13 age :,0,• p'?Witnessed by: ATTEST: qpesfoaf Jeffrey R. Smith of Court an . .d1 �� a nrnx 4nY 411 Ya Depu Clerk (Printed name) T Approved as to Form Le Sufficiency: Dylan Reingold, County Attorney Joseph . Baird, County i dministfator FAPublic Works\ENGINEERING DIVISION PROMCTSMIM66th Ave Ph 2 4th St to 16th St\Adnum*cnda items\Amendment No. I DUNKEUBERGER 9.20. 13 mm.doc DUNKC68CROER . Fort Lauderdale . Port Saint Lucie engineering & testing , Inc. . Sarasota AVerrocan coMPANY • West Palm Beach Indian River County August 6, 2013 180127" Street Project No . PSL-1113093054 Vero Beach, Florida 32960 (PSL-09-3054 BG10.4) Attention: Mr. Michael D . Nixon, P.E . . . . via a-mail (mnixon@ircgov. com) Subject: Construction Materials Testing Services EXH1131T 66th Avenue Roadway Improvements — Phase II Indian River County, Florida Dear Mr. Nixon. We respectfully submit this changer order request for Dunkelberger Engineering and Testing, A Terracon Company, to Indian River County for the above referenced project to cover the costs associated with the following remaining work as provided by Mr. Don Keith with the County. In-place density testing during backfilling of 22 drainage structures. Estimate 132 in- place density tests based on an average depth of 6 feet at bottom. In-place density testing during backfilling of the 6,527 lineal feet (LF) of storin pipe . Estimate 738 in-place density tests based on a production rate of 80 LF per day and an average depth of 6 feet at invert. In-place density testing for 8 , 100 LF of roadway/embankment fill. Estimate 120 in place density tests based on a testing frequency of one test per 500 LF and an embankment thickness of 3 feet. - In-place density tests for the 11 ,600 LF of stabilized subgrade and base course layers. Estimate 160 inplace density tests based on a testing frequency of one test per 500 LF (per direction) and a total of 31if9s (I lift of subgrade and 21 yls of base). In-place density tests at the subgrade for the approach slabs, curb pads, and sidewalks prior to concrete placement. Estimate 150 in-place density tests. Laboratory testing: (1 ) Estimate 15 Limerock Bearing Ratio (LBR) tests for stabilized subgrade (one per 1 ,000 LF) and base course (one per 4,000 LF) within the roadways; (2) Estimate 10 laboratory moisture-density relationship (Proctor) tests; and (3) Estimate 80 compressive strength tests of concrete cylinders. The changes to the Contract result in an increase of $42,060.00, as shown in Table 1 on the next page, necessary to cover the remaining work, providing for a contract total of $ 127,557 . 00. State of Florida Board of Professional Engineers Authorization No. 6870 Toll Free (877) 643.6832 Indian River County Page 2 Project No. PSL=HB091504 Table 1 : Estimated Scope and Budtret Sem*ce Work Scope Bud et Estimate Quantity Unit Price Amount Field Density Soil and base rock sampling and 1300 test $23 $29,900 Testing In-place density testing Standard/modified Proctors 10 test $86 $860 Laboratory Lhnerock Bearing Ratio (LBR) 15 test $300 $000 Testing Concrete Compressive Strength 80 sets $85 $69800 Estimated Total We ask that your office review this request and provide direction at your earliest convenience regarding approval. As always, your time and assistance with this review are greatly appreciated. Do not hesitate to contact me at my direct number at (772) 621 -5609 if you have any questions or concerns regarding this submittal. Very truly yours, DUNKELBERGER ENGINEERING & TESTING, INC. A TERRAC N COMPANY Xiaoyan (Sue) Zheng, PhD, PE Craig E. Dunkelberger, P .E. Project Engineer Senior Associate RB091054. COR BUHKBLBBRGRR