Flashboards

2 topics · 4 sources

Water

Temporary barriers, consisting of either timber, concrete or steel, anchored to the crest of a spillway as a means of increasing the reservoir storage. Flashboards can be removed, lowered, or carried away at the time of flooding either by a tripping device or by deliberate failure of the flashboards or their supports. Structural members of timber, concrete, or steel placed in channels or on the crest of a spillway to raise the reservoir water level but that may be quickly removed in the event of a flood.

Bureau of Reclamation — Bureau of Reclamation Glossary

A length of timber, concrete, or steel placed on the crest of a spillway to raise the retention water level but which may be removed in the event of a flood by manual retrieval, a tripping device or by deliberately designed failure of the flashboard or its supports.

State of Nevada, Division of Water Resources — Dam Safety - Glossary of Terms retrieved 2014-06-01

A length of timber, concrete, or steel placed on the crest of a spillway to raise the retention water level but which may be quickly removed in the event of a flood by a tripping device, or by deliberately designed failure of the flashboard or its supports.

NWS — Service Hydrologist Reference Manual Glossary of Hydrologic Terms retrieved 2014-06-01

Science

Weather

In hydrologic terms, a length of timber, concrete, or steel placed on the crest of a spillway to raise the retention water level but which may be quickly removed in the event of a flood by a tripping device, or by deliberately designed failure of the flashboard or its supports

NOAA National Weather Service — National Weather Service Glossary