-
City
SPU DWW Aba Rem Underdrains & Rain Gardens
City of Seattle —
The DWW (Drainage and Waste Water) GSI (Green Stormwater Infrastructure) layer consists of line and polygon representations of the following features: Swales... -
County
Floodplain District Permit
Montgomery County of Maryland —
The purpose of a Floodplain District Permit (FPDP) is to control floodplain development in order to protect persons and property from danger and destruction and to... -
State
WBDLine NGDA
State of Oregon —
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National... -
State
Waterbody - Small Scale
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
City
Impervious Cover 2021
City of Austin —
This dataset entails the delineation of impervious surfaces and artificial land cover types extracted from aerial imagery captured in early 2021. Utilization within... -
State
Ground Water Classifications Polygon
State of Connecticut —
See full Data Guide here.Ground Water Classifications Polygon: Ground Water Quality Classifications is a polygon feature-based layer compiled at 1:24,000 scale that... -
State
Point Event
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
State
Connecticut Dams - Public Use
State of Connecticut —
Connecticut Dams is a 1:24,000 scale spatial data developed for use by the Dam Safety Section of the Inland Water Resources Division, Bureau of Water Protection and... -
City
Inlets
City of Seattle —
This layer displays all the catch basins, catch basin grated tops, sandboxes, junction boxes, inlets and trash racks within the City of Seattle (and the former... -
State
Flowline - Large Scale
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
City
Proposed Inlets
City of Seattle —
This layer displays all the catch basins, catch basin grated tops, sandboxes, junction boxes, inlets and trash racks within the City of Seattle (and the former... -
State
10-digit HU (Watershed) NGDA
State of Oregon —
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National... -
State
MDTA Structurally Deficient Bridges - 2011 to 2014
State of Maryland —
This measure provides the number of structurally deficient bridges and number of total bridges owned by MDTA. The latitude and longitude is also provided for the... -
State
usgs 3dhp all NGDA
State of Oregon —
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D... -
City
Erosion Hazard Zone Review Buffer
City of Austin —
100 foot buffers of stream centerlines with drainage areas of 64 acres or greater -
State
Subregional Basin Poly
State of Connecticut —
A standardized mapping of natural drainage basins in Connecticut was completed in 1981 by the Connecticut Department of Environmental Protection (DEP). This drainage... -
City
UTILITIESCOMMUNICATION.OpenChannelREFDOC
City of Austin —
The Open Channel REFDOC table should be used in conjunction with the Open Channel feature class... -
City
Artificial Flow Path
City of Austin —
This data has been collected as part of a larger project by the City of Austin's Watershed Protection and Development Review Department to inventory its drainage... -
City
Drainage Pipe
City of Austin —
The data being collected is to be used for several purposes: - Hydraulic/hydrologic modeling input - Work Order Management System integration - Map book production -...