cbfish.org - Columbia Basin Fish & Wildlife Program - Metric 1669: # of tidegate partial passage barriers removed in the estuarine zone

Metric 1669: # of tidegate partial passage barriers removed in the estuarine zone - Published

Basics

Metric Type ID:

1669

Metric Name:

# of tidegate partial passage barriers removed in the estuarine zone

Metric Unit Type:

number

Is Numeric:

Yes

Precision:

1.0

Metric Guidance

Metric Guidance ID	Description	Used on Work Elements
306	The number of tidegate partial barriers to fish passage removed at a specified worksite in the estuarine zone. -Tidegate: A structure providing an opening through which water may flow freely when the tide sets in one direction, but which closes automatically and prevents the water from flowing in the other direction. -Partial barrier: A barrier to fish migration, preventing passage to specific life history stages. These barriers may be temporal in nature or limit passage due to obstructions, e.g., high flow, low flow, temperature, physical barriers, etc. or other variables that may allow some fish past, but not others. -Estuarine: Habitat that is part of a semi-enclosed coastal body of water that is subject to the ebb and flow of tides, with one or more rivers or streams flowing into it, and with a free connection to the nearshore marine zone. This includes habitat impacted by the highest high and lowest low tides of a year. Estuaries are environments whose pH, salinity, and water levels are subject to the ebb and flow of tides, and the physical and chemical properties of the river that feeds the estuary and the ocean from which it derives its salinity. This habitat includes floodplain/riparian habitat subject to inundation from the tides.	85

Work Elements That Use This Metric

1 Work Element Associated With Metric 1669: # of tidegate partial passage barriers removed in the estuarine zone

Work Element	Work Element Association Status	Description	FY Start	FY End	Guidance ID	Guidance	Required / Optional	Is Activated By Default	Included in PI	Supports PCSRF/PNSHP (Katz)	PNSHP Metric Code	PNSHP Metric
85. Remove/Breach Fish Passage Barrier	Active	Work that facilitates fish passage over a human-made barrier by breaching or removal without replacement. This includes dams, weirs, fish ladders, tidegates, culverts, bridges, and road crossings. If the dam is part of a diversion, use 208. Irrigation Infrastructure Construction or Replacement. If installing a fish passage structure at the same location, use 184. Install Fish Passage Structure, and have removal of the passage barrier as a milestone under that work element.	2011		306	The number of tidegate partial barriers to fish passage removed at a specified worksite in the estuarine zone. -Tidegate: A structure providing an opening through which water may flow freely when the tide sets in one direction, but which closes automatically and prevents the water from flowing in the other direction. -Partial barrier: A barrier to fish migration, preventing passage to specific life history stages. These barriers may be temporal in nature or limit passage due to obstructions, e.g., high flow, low flow, temperature, physical barriers, etc. or other variables that may allow some fish past, but not others. -Estuarine: Habitat that is part of a semi-enclosed coastal body of water that is subject to the ebb and flow of tides, with one or more rivers or streams flowing into it, and with a free connection to the nearshore marine zone. This includes habitat impacted by the highest high and lowest low tides of a year. Estuaries are environments whose pH, salinity, and water levels are subject to the ebb and flow of tides, and the physical and chemical properties of the river that feeds the estuary and the ocean from which it derives its salinity. This habitat includes floodplain/riparian habitat subject to inundation from the tides.	Required	Yes	Yes	Yes	C.9.e.2	Tidegates altered/removed to allow fish passage

Rationale:

Associated Measures

Measure	HLI
barriers removed

PCSRF/PNSHP (Katz)

Supports PCSRF/PNSHP (Katz):

Yes

PNSHP Metric Association	Work Element
C.0 Salmonid Habitat Restoration and Acquisition C.9 Estuarine/Nearshore Project C.9.e.1 Tidegate alteration/removal C.9.e.2 Tidegates altered/removed to allow fish passage	85. Remove/Breach Fish Passage Barrier

Summary

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