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Prqect No. D-3885-06 Christ Our Savior Catholic Parish 3. Conventional Footings over Compacted Subgrade Any light weight secondary structures like trash enclosure temporary modular buildings may be supported by l8-inch deep, 3-feet by 3-feet spread footings and/or lS-inch wide and l8-inch deep continuous footings bearing on newly compacted subgrade soil under the footing over 3 feet of 90o/o compacted fill and may be designed for an allowable bearing value of 1,500 pounds per square foot. The basic allowable bearing values may be increased by 250 psf for each additional foot of depth and 100 psf for each additional increase in width to a maximum of 2,500 pounds per square foot. Recommended bearing values are for dead plus live loads and may be increased one-third for combined dead, live, and transient forces such as wind load and seismic forces. Footings should be embedded l8 inches or more below the finish grade and should have minimum reinforcement of 2 #5 bars at top and 2#5 bars at the bottom. It is recommended however, that all foundations be reinforced as per structural design. Isolated column footings should be connected to other foundation elements with reinforced grade beams. It is estimated that provided all footings are bearing on properly compacted subgrade soil total settlement will be less than l" and differential settlement will be less than l/2" over a horizontal distance of 30 feet. Other aspects of the design, including minimum reinforcement, footing embedment, additional posts and beams, and the need for interior footings, are to be determined by the project structural engineer. "R" Value test was performed on a representative subgrade sample for pavement section determination. n I T I t t I I T I I T I I I I Pavement Recommendations:I E 33