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Home My WebLink About4700 BOARDWALK DR - SPECIAL INSPECTIONS - 6/28/20041 rer con June 28, 2004 301 N. Howes • P.O. Box 503 Fort Collins, Colorado 80521-0503 (970) 484-0359 Fax: (970) 484-0454 Wal*Mart, Inc. Construction Department #8702 2001 Southeast 10th Street Bentonville, Arkansas 72712-6489 Attn: Ms. Carrie Klahn Re: Foundation System Construction Materials Compliance Summary Wal*Mart Sam's Club Expansion, Store #6633-01 4700 Boardwalk Drive Fort Collins, Colorado Terracon Project No. 20041025 Dear Ms. Klahn: Soils/Earthwork At the request of Colorado Structures, Inc., Terracon reviewed the test data and observation reports for the above referenced project. Monitoring by Terracon was provided at the direction of Colorado Structures, Inc. and generally consisted of field density tests, and spread footing foundation observations. Our foundation observation services on the project building utilized the project plans, specifications and the Geotechnical Engineering Report recommendations (File No. 30860) performed by Kleinfelder, Inc. (dated October 20, 2003). As recommended in the soils investigation, on -site or approved imported soils were suitable for placement during construction. Laboratory tests indicated backfill material observed 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 218 in -place density/compaction tests (through June 15, 2004) for the site infrastructure and building foundation backfill during construction of the project. The tests at the locations indicated met or ultimately achieved (after retesting) the compaction specification requirements and/or geotechnical report recommendations. Terracon personnel provided testing during time periods as requested by Colorado Structures, Inc. personnel. Based upon the tests and observations performed, results indicate suitable materials and specified compaction at the locations tested. A Summary Density Report is enclosed for your review and reference. 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 each structure will be 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. Arizona ■ Arkansas ■ Colorado ■ Idaho ■ Illinois ■ Iowa ■ Kansas ■ Minnesota ■ Missouri ■ Montana Nebraska ■ Nevada ■ New Mexico ■ North Dakota ■ Oklahoma ■ Tennessee ■ Texas ■ Utah ■ Wisconsin ■ Wyoming Quality Engineering Since 1966 Sams Expansion lferracon Store #6633-01 Compliance Summary Project No. 20041025 Page 2 Concrete _ .. The Portland cement concrete placed and tested on -site consisted of 39 tests for physical property and compressive strength tests for the foundation footings, walls and slab -on -grade (through June 14, 2004). The reports indicate the specified minimum compressive strength requirements as referenced in the project specifications and/or reported by Colorado Structures, Inc. for the project have been achieved, or will meet at the age of 28-days. Reinforcing Steel Terracon provided reinforcing steel placement observation in structural concrete placements as requested. The observations performed were observed to be in compliance 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 test reports for acceptance as meeting the project criteria. Masonry Test samples of mortar (8), grout (9) and masonry prism assemblage samples (3) were obtained for compressive strength testing. Test results have met or exceeded the required minimum strength specified for the project with the exception of 1 mortar compressive strength (Report No. 20041025.0109, Set 8M) with 1,860 psi average 28-day strength. The required strength is 2,000 psi and is awaiting a 56-day test on July 19, 2001; report attached. In addition, masonry observation of construction procedures was provided by Terracon and reported verbally on -site and in written format. It is recommended that the project structural engineer review the test 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. Terracon is awaiting the final inspection/observation report to address outstanding deficiencies noted during the last site visit. It is recommended that the applicable project structural engineer review the observation reports for acceptance as meeting the project criteria upon receipt of the reports. Foundation Terracon provided observation of the foundation spread footing foundation(s) excavations as requested during construction. A summary of the observations and recommendations were provided in written reports upon completion. Per Kleinfelder, Inc. geotechnical report, project plans/drawings provided and observations performed and reported, the spread footings that Terracon observed have been placed in general accordance with the plans and specifications and were placed on the anticipated bearing material identified in our geotechnical report. Sam's Expansion Store #6633-01 Compliance Summary Project No. 20041025 Page 3 71-1,90 &410 409-1k A - -FO X00 $45� 6—. Any changes/modifications or request for information (RFI) to project (foundation, wall construction or structural steel) is recommended to applicable structural engineer for acceptance as meeting the project criteria. lferracon structural elements be reviewed by the This report has been prepared for the exclusive use of providing test data and observations to document portions of the earthwork, concrete, masonry, structural steel/weld, and foundation construction 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. It has been our pleasure to work with you on this during your ongoing construction. Should you information, please contact us at your convenience. Respectfully submitted, 1eerracon 0 X 2, " (-2,s Mik+LWalker, CET Manager of Construction Services Enc/Copies to: (2) (1) (2) (1) (1) (1) MLW/DJJ proje have ,ig services I additional Douglas"J."tnif��e, P.E. Principal/Regional Manager Addressee Theodore J. Schwink Architect Colorado Structures, Inc. (1 each onsite and office) City of Fort Collins Building Dept. via Colorado Structures, Inc. Stenstrom Schneider, Inc. Kimley-Horn & Associates, Inc.