Loading...
HomeMy WebLinkAbout1263 E Magnolia St - Special Inspections/Engineering - 09/29/2006September 29, 2006 Centennial Bank of the West 713 South Lemay Avenue Fort Collins, CO 80524 Attn: Mr. Jim Miller Re: Construction Materials Compliance Summary Centennial Bank of the West 1263 East Magnolia Street t/ Fort Collins, Colorado Project No. 20061064 Dear Mr. Miller: Earthwork Irerracon Consulting Engineers & Scientists 301 North Howes Fort Collins, Colorado 80521 Phone 970.484,0359 Fax 970.484.0454 www.terracon.com At your request, we reviewed the earthwork materials placed and monitored during construction activities by Terracon on an "as requested" basis. Our services on the project building have included performing laboratory testing of the soils for suitability to the project specifications and the Geotechnical Engineering Report recommendations performed by Earth Engineering Consultants, Inc. (Project No. 105285; dated June 17, 2005). Terracon also performed in -place field density testing during placement of the fill to check maximum density and moisture control. As recommended in the soils investigation, on -site or approved imported soils were suitable for placement during construction. Laboratory tests indicated fill material tested by Terracon met the recommendations as outlined in the geotechnical report. The results of the field and laboratory testing were forwarded for review. In addition, the on -site superintendent and subcontractors were informed on a daily basis of the test results performed. Terracon performed 25 in -place moisture-density/compaction tests for the building and parking lot site subgrade and fill placement. The tests at the locations taken indicated the final material either met or ultimately achieved (after retesting) compaction specification requirements. Our test results represent only the materials at the location and time of testing. Terracon did not direct nor control the fill placement and compaction at the site and does not assume responsibility for the placement, compaction or control of the fill materials. Areas of fill which are not representative of our testing may exist, particularly in common fill areas such as slopes or landscaped outside of proposed construction. The foundation type and specific design for the structure was recommended based on the particular characteristics of the soil type at foundation depth, and on the basis of further evaluations and observations prior to construction. Concrete The Portland cement concrete placed and tested on -site consisted of 8 tests for physical property and compressive strength tests of foundation footings, foundation walls, floor slab and columns. The reports indicate the specified minimum compressive strength requirements for the project have been achieved. Delivering Success for Clients and Employees Since 1965 More Than 80 Offices Nationwide Centennial Bank of the West 1rerracon Compliance Summary Project No. 20061064 Page 2 Reinforcing Steel Terracon provided reinforcing steel placement observation in structural concrete placements as requested. The observations were performed per the provided plans and specifications for the project and have been formally reported to the client and designated parties. It is recommended that the project structural engineer review the observation reports for acceptance as meeting the project criteria. Structural Steel Inspex ndt. provided structural steel/weld site construction observation. Observations were provided to on -site personnel at the time of the visit with a written report as documentation. The observation report has noted observations as being acceptable per the provided plans. It is recommended that the project structural engineer review the observation reports for acceptance as meeting the project criteria. Foundation Terracon provided observation of the spread footing foundation and open -hole excavations/in- place compaction testing of fill material as requested during construction. A summary of the observations and structural review response items were provided in written reports upon completion. Per EEC's geotechnical report and Terracon's observations performed, spread footing foundation has been placed in general accordance with the plans and specifications and were placed on the anticipated bearing material identified in the site specific geotechnical report. This report has been prepared for the exclusive use of providing test data and observations to document the earthwork, concrete and structural steel operations conducted for the proposed project. The opinions and conclusions presented have been derived in accordance with generally accepted geotechnical and material engineering practice. No other warranty expressed or implied is made. In the event that there are any changes in the nature or design of the project, the conclusions contained in this report shall not be considered valid unless this firm reviews such changes, and the conclusions of this report are modified or verified in writing. This letter is prepared for the exclusive use and reliance of our client. Use or reliance by any other party is prohibited without the written authorization of our client and Terracon. Reliance on this letter by the client and all authorized parties will be subject to the terms, conditions and limitations stated in the proposal, report and Terracon's Terms and Conditions. The limitation of liability defined in the Terms and Conditions is the aggregate limit of Terracon's liability to the client and all relying parties. Centennial Bank of the West Compliance Summary Project No. 20061064 Page 3 1rerracon It has been our pleasure to work with you on this project and to continue providing services during your ongoing construction. Should you have any questions, or need additional information, please contact us at your convenience. Respectfully submitted, TERRACON MikIL alker, CET Manager of Construction Services David A. Richer, P Geotechnical Enoii Enc/Copies to: (2) Addressee (1) Sanderson Architects (1) Growling Bear Co. Inc. - Office (2) City of Fort Collins Bldg. Dept. c/o Growling Bear - Onsite