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Title: Massachusetts, USA (Flood Hazards, 2012)

• United States. Federal Emergency Management Agency

Dates

• Issued: August 16, 2012
• Coverage: August 16, 2012
• Coverage: 2012

Publishers

• United States. Federal Emergency Management Agency

Summary

The National Flood Hazard Layer (NFHL) data incorporates all Digital Flood Insurance Rate Map(DFIRM) databases published by FEMA, and any Letters Of Map Revision (LOMRs) that have been issued against those databases since their publication date. The DFIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper Flood Insurance Rate Maps(FIRMs). The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The NFHL data are derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The specifications for the horizontal control of DFIRM data are consistent with those required for mapping at a scale of 1:12,000. The NFHL data contain layers in the Standard DFIRM datasets except for S_Label_Pt and S_Label_Ld. The NFHL is available as State or US Territory data sets. Each State or Territory data set consists of all DFIRMs and corresponding LOMRs available on the publication date of the data set.

Subjects

• Environment
• Structure
• Elevation
• Transportation
• Massachusetts
• hydrology
• inlandWaters
• Flood insurance--Rates
• Flood damage prevention
• Flood control--Planning
• Storm surges
• Datasets

Geospatial coordinates

• Bounding Box: BBOX (-72.315879, -70.443474, 42.886818, 41.249267)
• Geometry: BBOX (-72.315879, -70.443474, 42.886818, 41.249267)

Provider

GIS Lab, MIT Libraries

Rights

• Access rights: Restricted
• No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system nor shall the act of distribution constitute any such warranty. FEMA will warrant the delivery of this product in a computer-readable format, and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustment of credit must be made within 90 days from the date of this shipment from the ordering site.

Citation

United States. Federal Emergency Management Agency. Massachusetts, USA (Flood Hazards, 2012). United States. Federal Emergency Management Agency. Polygon data. https://geodata.libraries.mit.edu/record/gismit:US_MA_C32FLOODHAZARDS_2012

Format

Shapefile