DOCUMENT

ITB - Communications Tower Construction 2005

  • YEAR CREATED: 2005
  • ENTITY TYPE: City/Township
  • TYPE OF DOCUMENT: BID - ITB, IFB, ITT, RFB
The document is a geotechnical report for a proposed tower project in Auburn, Alabama. The report provides recommendations for the tower foundations, building foundations, foundation excavations, and fill placement. It states that the subsurface conditions are suitable for support of the tower using a mat or caisson foundation. The mat foundation should be supported at a depth of about 5 feet and designed for a maximum soil bearing pressure of 4 kips per square foot. Groundwater should be removed before placing concrete. For caisson foundations, an end-bearing design should be used with the base of the caisson bearing on partially weathered rock or rock at or below 35 feet. The report also recommends a mud mat of lean concrete be placed on the bearing soils before the placement of reinforcing steel if the excavation must remain open overnight or if rainfall is imminent. It suggests that any soft or loose near surface soils should be removed before placing new fill and that field density tests should be conducted to verify adequate compaction. The report concludes by stating that the recommendations are based on the specific project and site discussed in the report and that unanticipated conditions and inadequate procedures should be reported to the design team.
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