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HomeMy WebLinkAboutEngineer's ReportMechanical & Structural Engineering Design & Project Management File Gl5034·5·2001..0 August 19 , 2015 Ms. Liane Poell Production Engineer Solvay Chemicals 2717 County Road 215 Parachute, CO 81635 Re: Solvay Pallet Building Foundation Inspection Dear Ms . Poell , MPA Consulting Eng ineers I nc 823 Grand A venue, S uite #200 Glenwood Springs Colorad o 8160 2 Te l (9 70) 9 28·8536 Email don .howanick@mpa.glenwood .com As requested, MPA Consulting Engineers conducted a site inspection of the pallet building foundation excavations, located on Solvay property at 27 I 7 County Road 215, Parachute, Colorado on August 18, 2015. The purpose of the site inspection was to inspect excavations, soil conditions, and to determine if the reinforcing bars were installed in accordance with the structural drawings for the foundation provided by MPA Consulting Engineers. The pallet building is being ins talled on top of an existing I 0 inch thick concrete slab that is currently used as a driveway and parking area for semi trucks th at deliver products for Solvay. In order to install th e pallet building footings at 36 inches below grade, as required by Garfield County Building Department for frost depth protection, it was necessary to cut openings through the existing concrete slab and excavate belo w the slab to 36 inches below grade. The footings are to be installed by dropping the rebar cages into the excavations, and th~n placing the concrete. The pallet building is a pre fabricated building designed and installed by Perka Buildings Frames. The building is 51 feet long, 20 feet wide , and approximately 20 feet high. The building consists of steel moment frames for the primary frame members, and uses timber members for the secondary members. During the inspection, it was detennined that the excavations and rebar configurations were in accordance with the structural drawings provided by MPA. The excavations were slightly over excavated and backfilled, then compacted using a •jumping jack" compactor to compact the bottoms of the excavations. This will be adequate to support the loads applied to the footings . Please see Appendix A, below, for photos taken during the site inspection. Please call with any questions or c omments. Sincerely, MP A Consulting Engineers, Inc. £ilolb~~:£.s .. P.E. Principal Structural Engineer Page I o f 3 APPENDIX A PHOTOS OF SITE INSPECTION FOR PALLET BUILDING FOUNDATION EXCAVATIONS Bottom of excavation after over excavation, backfill, and compaction using "jumping jack" compactor. Rebar placement in excavation after backfill and compaction . P:iol'?. nf 1