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45TH STREET BEAUTIFICATION PROJECT PHASE II (IRC -1748) -2- <br />AACE Proposal No. P18-1037 <br />Proposed Testing Frequency <br />The following in-place density testing frequencies are typically employed by AACE for similar roadway projects: <br />Roadways: <br />Natural Ground - 1 test performed 1 foot into natural ground per 100 lineal feet, per travel direction (minimum of 2 tests per lane) <br />Embankment - 1 test per 100 lineal feet, per travel direction, per 12 -inch lift (minimum of 2 tests per lane) <br />Stabilized Subgrade - 1 test per 100 lineal feet, per travel direction, per 12 -inch lift (minimum of 2 tests per lane) <br />Base Course - 1 test per 100 lineal feet, per travel direction, per 4 -inch to 6 -inch lift (minimum of 2 tests per lane) <br />Sidewalks - 1 test per 100 lineal feet, per 12 -inch lift of embankment or 1 foot into natural ground. <br />Drainage: <br />Structures -1 test per 12" lift of backfill, from bottom of structure to top of structure. (Fill placed on all sides of structure is probed <br />with a manual probe rod to confirm uniform compactive effort). <br />Piping -1 test per 200 lineal feet (or per backfill/open cut operation) per 12" lift along both sides of pipe to top -of -pipe, then every <br />1 foot of fill atop pipe thereafter. <br />Underground Piping/Utilities/Conduit: <br />Water Main -1 test per 12" lift per 200 lineal feet (or per backfill/open cut operation) beginning from both sides -of -pipe, then every <br />1 foot of fill atop pipe thereafter. We have assumed a maximum of 4 feet of cover for water main backfill. <br />Concrete Testing: <br />A minimum of one set of four (4) cylinders will be made for every pour, and for each 50 cubic yards for larger pours. <br />One slump test will be performed for every pour, and for each 50 cubic yards for larger pours. <br />- Balance of page intentionally left blank - <br />