The distance between the water and the deck of a ship.
The vertical distance from the surface of the water to the main deck of a vessel.
The height of the crest of a structure above the still water level.
Under the National Flood Insurance Program, a factor of safety, usually expressed in feet above a flood level, for the purposes of floodplain management. Freeboard tends to compensate for the many unknown factors that could contribute to flood heights greater than the heights calculated for a selected size flood and floodway conditions, such as the hydrological effect of urbanization of the watershed.
Related Topics: [ pond] [ structures] For a waterway, freeboard is the additional depth added to the design depth to provide an overflow factor of safety and for siltation during the useful life of the channel. Typically, a 10 percent freeboard (rounded to the nearest .1 ft with a minimum of .2 ft) is adequate. For a dam, freeboard refers to the height from the crest (bottom elevation plus the depth of flow) of the flood spillway to top of dam. This extra height provides for protection against wave action and frost. Frost looses the soil at the top of the dam, making it ineffective for holding water. Typical freeboards for agricultural ponds are .5 - 1.5 ft.
Vertical distance from the lowest part of the deck (or flow-through point in transom) to waterline.
The vertical distance between the waterline and the top of the deck.
That part of a ships sides above water, from the Anglo-Saxon framebord, meaning 'the frame's side."
A factor of safety usually expressed as a height above the adopted flood level thus determining the flood planning level. Freeboard tends to compensate for factors such as wave action, localised hydraulic effects and uncertainties in the design flood levels.
The distance from the water line to the top of the buoyancy tube.
Vertical distance between the top of a tank or surface impoundment dike and the surface of the hazardous substance contained therein. Freeboard is intended to prevent overtopping resulting from normal or abnormal operations, wind and wave action, rainfall, and/or run - on.
The vertical distance between the top water level and the crest of a bank, dam or similar structure. Freeboard is provided for in designing such structures to prevent overtopping due to surcharge or wave action. In an earth structure, freeboard should include an allowance for settlement.
The height of the lowest part of the deck of a watercraft above its waterline. Franc bord or revanche in French.
The space on the side of the hull between the top and the water line.
the space from the top of an embankment to the highest water elevation expected for the largest design storm to be stored. The space is required as a safety margin in a pond or basin. A minimum of one foot is required.
distance between the waterline and the uppermost full deck
The vertical distance from the water surface to the lowest point where unwanted water could come aboard.
The height of a ship's hull (excluding superstructure) above the waterline.
an addi tional level that elevates a structure above the base flood elevation
the vertical space remaining in a containment structure; the vertical distance between the surface of the water and the top of a dam or dyke
The distance from the top of the deck to the water.
That portion of a dam maximum water level in a reservoir.
A factor of safety expressed in feet above a design flood level for flood protective or control works. Freeboard is intended to compensate for the unknown factor which could increase design heights, such as wave action, floodway obstruction, or future changes in the watershed.
Vertical distance between the top of an embankment adjoining a channel and the water level in the channel.
That outer part of the ship's hull between the waterline and the main deck.
The measurement from the top of the highest expected flood to the top or crown of the levee.
The vertical distance measured from a boat's waterline to the lowest part of its gunwale.
the distance from the waterline to the main deck of a boat or barge.
The minimum vertical distance from the surface of the water to the gunwale.
The vertical distance between the normal maximum water surface level within a structure and the level of the surface cover or grate.
the distance between the deck and the waterline. Most often it will vary along the length of the boat.
The vertical distance between the normal maximum level of the water surface in a channel, reservoir, tank, canal, etc., and the top of the sides of a levee, dam, etc., which is provided so that waves and other movements of the liquid will not overtop the confining structure.
a boat's flat side panel; the minimum vertical distance from the water to the sheer.
The portion of a boat above the waterline.
Vertical height between water surface and the top of a dam, levee or floodwall.
The distance from the waterline to the upper deck level, measured at the centre of a ship.
The vertical distance between the water surface and the deck.
the distance from the highest point of the hull to the water
the height added to the predicted level of a flood to take account of the height of any waves or turbulence.
The part of the canoe that rides above the waterline.
Vertical distance between the waterline and the top of the hull side.
height of the hull above the water line. See topsides, sheer
The height of the watertight portion of a building or other construction, such as a ditch, above a given level of water. In the context of the Molycorp mine, freeboard refers to drainage ditches constructed around the tailings impoundments in Questa.
This is the distance between the water line and the deck.
The vertical distance of a defined point or feature above the design water level.
The vertical distance from the waterline to the top of the main deck, at the side of the vessel, measured amidships.
The distance from the waterline to the upper surface of the freeboard deck at side.
The reserve volume designed into a lagoon or earthen manure storage to minimize chances of the contents overflowing and causing contamination. Freeboard is typically sized to hold the water draining into the storage from the highest intensity 24-hour rainfall expected to occur within 25 years.
The vertical distance from the gunwale of a boat to the waterline measured amidships.
The additional height on a dam or other water control structure to provide against overtopping due to wave action and excess inflow.
Distance from water to lowest point of the boat where water could come on board
The height of a boat's topsides from the waterline to the deck
The vertical distance between a stated water level and the top of a dam.
The vertical distance between the top of a filter media bed (or ion exchange resin bed) and the overflow or collector. This space allows for bed expansion during backwashing.
The vertical distance between a bed of filter media or ion exchange material and the overflow or collector for backwash water; the height above the bed of granular media available for bed expansion during backwashing; may be expressed either as a linear distance or a percentage of bed depth.
The distance, measured in the center of a boat, from the waterline to the upper deck level.
1. Vertical distance from the normal water surface to the top of a confining wall. 2. Vertical distance from the sand surface to the underside of a trough in a sand filter.
The part of a ship's side between the water line and the deck or gunwale.
Freeboard, in sailing and boating, means the distance from the waterline to the upper deck level, measured at the lowest point where water can enter a boat or ship. A low freeboard is often found on racing boats, for speed. A higher freeboard will give more room in the cabin, but may compromise speed.