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<br />g. Diversion dam. A dam built to divert water from a waterway or stream <br />into a different watercourse. <br /> <br />h. Double curvature arch dam. An arch dam which is curved vertically as <br />well as horizontally. <br /> <br />i. Earth dam. An embankment dam in which more than 50% of the total <br />volume is formed of compacted earth material generally smaller than <br />3-inch size. <br /> <br />j. Embankment dam. Any dam constructed of excavated natural materials <br />or of industrial waste materials. <br /> <br />k. Gravity dam. A dam constructed of concrete and/or masonry which <br />relies on its weight and internal strength for stability. <br /> <br />l. Hollow gravity dam. A dam constructed of concrete and/or masonry on <br />the outside but having a hollow interior and relying on its weight <br />for stability. <br /> <br />m. Hydraulic fill dam. An earth dam constructed of materials, often <br />dredged, which are conveyed and placed by suspension in flowing water. <br /> <br />n. Industrial waste dam. An embankment dam, usually built in stages, to <br />create storage for the disposal of waste products from an industrial <br />process. The waste products are conveyed as fine material suspended <br />in water to the reservoir impounded by the embankment. The embank- <br />ment may be built of conventional materials but sometimes <br />incorporates suitable waste products. <br /> <br />o. Masonry dam. Any dam constructed mainly of stone, brick, or concrete <br />blocks jointed with mortar. A dam having only a masonry facing <br />should not be referred to as a masonry dam. <br /> <br />p. Mine tailings dam. An industrial waste dam in which the waste <br />materials come from mining operations or mineral processing. <br /> <br />q. Multiple Arch Dam. A buttress dam comprised of a series of arches <br />for the upstream face. <br /> <br />r. Overflow dam. A dam designed to be overtopped. <br /> <br />s. Regulating dam. A dam impounding a reservoir from which water is <br />released to regulate the flow downstream. <br /> <br />t. Rockfill dam. An embankment dam in which more than 50% of the total <br />volume is comprised of compacted or dumped cobbles, boulders, rock <br />fragments, or quarried rock generally larger than 3-inch size. <br /> <br />u. Roller compacted concrete dam. A concrete gravity dam constructed by <br />the use of a dry mix concrete transported by conventional construc- <br />tion equipment and compacted by rolling, usually with vibratory <br />rollers. <br /> <br />-3- <br />