. Bulletin of the Department of Agriculture. Agriculture; Agriculture. TIMBER STORAGE IN THE EASTERN AND SOUTHERN STATES. 17 The use of untreated wood blocking, particularly on low, moist ground, should be discouraged, as such material invariably harbors fungi. The most desirable practice, and one which would be free from all objections, is the use of concrete or brick piers, preferably the former, and skid timbe;^s treated with some preservative. Such skids, about 24 inches high, treated wjth creosote, are now in use at the Forest Products Laboratorv (fig. 18). Foundations with concrete
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. TIMBER STORAGE IN THE EASTERN AND SOUTHERN STATES. 17 The use of untreated wood blocking, particularly on low, moist ground, should be discouraged, as such material invariably harbors fungi. The most desirable practice, and one which would be free from all objections, is the use of concrete or brick piers, preferably the former, and skid timbe;^s treated with some preservative. Such skids, about 24 inches high, treated wjth creosote, are now in use at the Forest Products Laboratorv (fig. 18). Foundations with concrete piers and untreated skids are at present in use in a number of yards and have given entire sat- isfaction. At one Mississippi mill (figs. 14 and 19) unfavor- able conditions of low ground have been mainly overcome by good drainage, care- ful attention to the removal of debris, and the use of con- crete foundations well off the ground. A description of the foundations and their cost may be of in- terest. The foundations were placed and the tramways rebuilt be- tween 1908 and 1910, after a number of years of unsatisfactory expe- rience with wood, at a reported cost of about $30,000 for a mill having an annual cut around 60,000,000 feet of pine a year. In the two years preceding the placing of the concrete foundations and the rebuilding of the tramways, the annual charge for material and labor in the upkeep of the yard was $18,000 and $17,000, respectively. Follow- ing the equipment of the yard with concrete foundation piers and concrete footings for the tramway posts, this charge was materially reduced. The present maintenance cost as reported by the company, 71022°—Bull. 510—17 3. P78F Fig. 13.—Vines growing over lumber piles. From a patho- logical standpoint this condition should be condemned, because the dense foliage prevents the lumber from rap- idly drying out after rains, thus promoting Please note that these images are extracted from scanned page images tha
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