Tract B ofthe Villa Alegre Development
The site soils are collapsible if allowed to increase in moisture content. If post construction water or sewer line leaks occur, localized settlement may result. Following installation, all water and sewer lines should be pressure checked for leaks. Any leaks found should be repaired.
Backfill in utility line trenches below slabs, driveways, and pavement should be placed as detailed in Section P2604.4 of the 2006 International Building Code. Trenches below slabs, driveways and pavement should be placed and compacted as detailed in Section P2604.3 of the 2006 International Building Code with the exception that all trench backfill shall be free from rocks, broken concrete, frozen material, and debris. All trench backfill shall be compacted to a minimum of 90% of maximum density as determined by ASTM D-1557. Utility trenches should be as narrow as can be properly compacted. To reduce the possibility of breaking utility lines with compaction equipment, heavy compactors should not be utilized.
Wall footings and thickened slabs should not be placed longitudinally over utility lines. Column footings should not be placed over utility trenches. Refer to Section P2604.4 ofthe 2006 International Building Code.
V & A Project No.: 09-],-102