Attributes

The DAMS_PT attribute table has the following items:

Field Name		Width		Type		Description /Codes
REGAUTH		254		String		The authority responsible for regulating the dam(see below for codes) FERC Jurisdiction   FERC (Federal Energy Regulation Commission) Jurisdiction applies to facilities that generate hydro-electric power and are subject to FERC regulation. May be privately or publicly owned. Army Corps of Engineers Jurisdiction   Dams regulated by the Army Corps of Engineers (ACOE) Fish & Wildlife Service Jurisdiction   Dams regulated by the Fish & Wildlife Service (FWS) Office of Dam Safety   Dams which may be privately or publicly owned but are regulated by and under the jurisdiction of the Massachusetts Office of Dam Safety (ODS) in accordance with regulation CMR 302 10.00. Non-Jurisdictional – Other   NOT regulated by the ODS or under their jurisdiction. Typically under 6 ft in height and/or under 15 acre-feet in storage and do not have an assigned 'Hazard Code'. Dams owned and regulated by the Federal Government are also typically Non-jurisdictional but DO have assigned Hazard Codes.
NATID		254		String		Unique ID for the dam in the Office of Dam Safety database
DAMNAME		254		String		Currently recognized and official name of the dam
TOWN		254		String		Town in which the dam is located
DAMLAT		19		Double		Dam location – Latitude in decimal degrees
DAMLONG		19		Double		Dam location – Longitude in decimal degrees
HAZARDCODE		254		String		Codes that indicate severity of hazards presented to communities in case of dam failure High   Located where failure will likely cause loss of life and serious damage to home(s), industrial, commercial facilities, important public utilities, main highway(s) or Railroad(s) Significant   Located where failure may cause loss of life and damage home(s), industrial or commercial facilities, secondary highway(s) or railroad(s) or cause interruption of use or service of relatively important facilities. Low   Located where failure may cause minimal property damage to others. Loss of life is not expected. N/A   No hazard code: Non-jurisdictional dams do not have hazard codes except when owned and regulated by the Federal Government.
OWNTYPE1		254		String		Basic information on owner type. See OwnType2 for further elaboration. Public   Owned by a public entity Private   Owned by a private entity
OWNTYPE2		254		String		More details on owner type. See OwnType3 for further elaboration. Private   Owned by a private entity Private Association or other non-profit   Owned by a private association or a non-profit State   Owned by a state agency. More details in 'OwnType3' field. Municipality   Owned by a municipality. More details in 'OwnType3' field. Federal Agency   Owned by a Federal Agency. More details in 'OwnType3' field. Political Subdivision   Owned by a political subdivision that is neither state nor municipal such as a water district that might have jurisdiction within more than one municipality.
OWNTYPE3		254		String		Details on owner type where available Private   Dams are privately owned so names, addresses etc are not publicly shared. Private Association or other non-profit   Dams are privately owned so names, addresses etc are not publicly shared 'City of...' or 'Town of…'   For Municipally owned dams, the specific municipal authority 'Water District…' or 'Regional School..'   For dams owned by Political subdivisions, the authority name ACOE or FWS   For Federally regulated dams, name of regulating authority. DCR, DFG, DHE, DOT, DCAM, DMH or MBTA   For State owned dams, authority name. More details in field 'MgmtUnit'.
MGMTUNIT		254		String		Department or other management unit responsible for dams MWRA–Operated   Dam is operated by Mass. Water Resource Authority PL–566/Flood Control   Dams in the Watershed Protection & Flood Prevention Program (PL-566) <Other values>   Unique names that are self-explanatory e.g. 'Conservation Commission' , 'Board of Selectman' etc (in the case of Municipally owned dams)
LOCSTATUS		30		String		Indicates whether geographic location of the dam has been verified Verified   Dam locations have been checked against ODS records NOT Verified   Dam location yet to be verified – should not be considered checked
TOWN_ID		3		Number		MassGIS town identifier (1-351)

The shapefile will periodically be updated as better information becomes available in the ODS database. Future data enhancements include verifying all dam locations.

 

Last Updated 4/23/2012
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