Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: Subject Inland Waters Remove constraint Subject: Inland Waters Institution Maryland Remove constraint Institution: Maryland
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Floodplain - Effective FEMA Floodplain: Maryland

2016. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The Effective Floodplain layer represents the official regulat...

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Floodplain - Preliminary FEMA Floodplain: Maryland

2016. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This layer offers the anticipated floodplain boundaries howeve...

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Floodplain: Baltimore, Maryland

2014. Polygon feature representing flood risk as defined by the FEMA Digital Flood Insurance Rate Map database. Last Updated 2014.

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Floodplain: Baltimore, Maryland

2015. This dataset depicts flood risk areas in the City of Baltimore.

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Floodplain Base Flood Elevations: Washington, D.C.

2015. Base Flood Elevation. The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the ...

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Floodplain Cross Sections: Washington, D.C.

2015. Cross Sections. The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk d...

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Floodplain FIRM Panels: Washington, D.C.

2015. FIRM Panel. The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data....

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Floodplain General Structures: Washington, D.C.

2015. General Structure. The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the ris...

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Floodplain: Harford County, Maryland

2015. The regulatory 100-year floodplain is an area mapped by the Federal Emergency Management Agency based upon the probability of that area flooding fr...

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Floodplains from 1985: Washington, D.C.

1985. Floodplains from 1985. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Progr...

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Floodplains from 2010: Washington, D.C.

2010. Floodplains from 2010. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Progr...

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Floodplains Outline: Washington, D.C.

2015. The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary...

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Gauges - Stream Gauge Locations: Maryland

2016. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. AHPS Shapefile - Observations - a shapefile of river and...

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Gauges - Tide Gauge Locations: Maryland

2016. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data layer shows the locations of NOAA tide gauges ...

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Hydrology Lines: Harford County, Maryland, 2013

2013. Linear water features. 100' scale photogrammetric mapping compiled Spring 2013.

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Hydrology Polygons: Harford County, Maryland, 2013

2013. Hydrology area features; double line streams, ponds, rivers; 100' scale photogrammetric mapping compiled Spring 2013.

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Major Drainage Basins: Baltimore, Maryland

2012. Polygon feature representing the major drainage basins within Baltimore City. Last Updated 2008.

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Maritime Industrial Zoning Overlay District (MIZOD): Baltimore, Maryland

2012. Maritime Industrial Zoning Overlay District boundaries.

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Navigable River: Delaware Valley

2016. The DVRPC navigable river layer is a polygon layer representing the extents of the Delaware and Schulykill rivers that are designated for commercia...

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River Crossings: Delaware Valley

2016. Includes highway and rail river crossing inventory for the DVRPC region.The DVRPC Highway River Crossing data layer was developed to identify key b...