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<br />tre <br /> <br />IP!FiOFIESS~ONAl <br />DIES~GN F~!Fi1M <br /> <br />TOWS-aN-ROGERS- <br />ENGINEERING, INC. <br /> <br />ENGINEERING, PLANNING, ENVIRONMENTAL PERMITTING <br /> <br />October 31,2001 <br /> <br />Mr. Bill Burgess <br />City of Zephyrhills <br />5335 8th Street <br />Zephyrhilffi,FL 33540 <br /> <br />RE: Ben's Car Wash <br />Slab Construction/ Dowels <br />TRE Project No. 98277 <br /> <br />Dear Bill: <br /> <br />It has come to my attention that the Contractor for the above-referenced project is ready to <br />pour the slab and is waiting on the City to inspect the reinforcing prior to concrete placement, <br />which is scheduled for 7:00 tomorrow morning. The Owner and Contractor have indicated that <br />the City has questioned the use of epoxy-grouted dowels on the job, probably as a result of my <br />recent letter. My letter questioned the use of the dowels, particularly with regard to their <br />location and depth. <br /> <br />I have since observed placement the dowels at the jobsite and have verified that new dowels <br />have been placed at the appropriate depth. Typically, good retrofit dowel placement calls for <br />placement of the dowels at a depth of approximately one inch per eighth-inch of dowel <br />diameter. No.5 bars, for example, should be placed at a depth of 5 inches. The holes for the <br />dowels whose installation we observed were drilled with an 8-inch bit and have thus been <br />placed at a depth of 8 inches. Placement of dowels at an appropriate depth and subsequent <br />grouting with an appropriate epoxy material is an acceptable practice. The dowels were <br />grouted with an acceptable grout manufactured for the purpose for which it was used. <br /> <br />We noted that some dowels (in the 2-foot spaces between the 8-foot window openings) were <br />missing, but the contractor was in the process of installing them while we were on site. At the <br />rate the work was progressing, we would expect all of the dowels to be in place before the close <br />of business today and should be in place in time for you to inspect them. <br /> <br />Based upon our observations, it appears that the dowels, as placed, are in the proper location. <br />There are actually a few more than called for on the plans. Further, epoxy grouting of <br />reinforcing bar dowels is an accepted practice. <br /> <br />5514 7th Street . Zephyrhills, FL 33540 <br />813-788-0400. Fax 813-782-4978 <br />