-
State
California Fish Passage Assessment Database [ds69]
State of California —
The Passage Assessment Database (PAD) geospatial file contains locations of known and potential barriers to salmonid migration in California streams with additional... -
State
305b Assessed River 2020
State of Connecticut —
305b Assessed River, Lake, Estuary 2020: Connecticut 305b Assessed River 2020 is a 1:24,000-scale, line feature-based layer that includes rivers that have been... -
Floodplain General Structures
District of Columbia —
Location and attributes for flood control structures shown on the flood profile and FIRM. This table is required whenever hydraulic structures are shown in the flood... -
Floodplain Cross Sections
District of Columbia —
Location and attributes for cross section lines in the area covered by the FIRM. This layer must contain all cross sections in a model, not just the lettered cross... -
County
Allegheny County Watershed Boundaries
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
This dataset demarcates the 52 isolated sub-Watersheds of Allegheny County that drain to single point on the main stem rivers. Created by 3 Rivers 2nd Nature based... -
Floodplain Base Flood Elevations
District of Columbia —
Location and attributes for Base Flood Elevations lines shown on FIRM. The elevation of surface water resulting from a flood that has a 1% chance of equaling or... -
State
Surface Water Drinking Water Source Areas
State of Oregon —
This data layer is an element of the Oregon GIS Framework. This map includes Oregon Department of Environmental Quality (DEQ) and Oregon Department of Human Services’... -
Federal
National Wild and Scenic River Lines (Feature Layer)
Department of Agriculture —
This polyline feature class depicts the river corridors of each Wild and Scenic River designated by Congress or the Secretary of the Interior for the United States... -
State
305b Assessed Estuary 2020
State of Connecticut —
305b Assessed River, Lake, Estuary 2020: Connecticut 305b Assessed River 2020 is a 1:24,000-scale, line feature-based layer that includes rivers that have been... -
State
305b Assessed River 2018
State of Connecticut —
305b Assessed 2018 River Lake Estuary Set: Connecticut 305b Assessed Estuary 2018 is a 1:24,000-scale, polygon feature-based layer that includes estuaries that have... -
State
305b Assessed Lake 2018
State of Connecticut —
305b Assessed 2018 River Lake Estuary Set: Connecticut 305b Assessed Estuary 2018 is a 1:24,000-scale, polygon feature-based layer that includes estuaries that have... -
State
Suction Dredge Special Regulations - 2020 [ds788]
State of California —
This dataset was created as published December 8, 2020, as an aid to CDFW, the State Water Resources Control Board, and the public following the enactment of Senate... -
Federal
National Wild and Scenic Rivers (Feature Layer)
Department of Agriculture —
A depiction of areas designated as Wild and Scenic Rivers. Metadata -
State
305b Assessed Estuary 2018
State of Connecticut —
305b Assessed 2018 River Lake Estuary Set: Connecticut 305b Assessed Estuary 2018 is a 1:24,000-scale, polygon feature-based layer that includes estuaries that have... -
State
Impaired River 2020
State of Connecticut —
Connecticut 303(d) Impaired Waters 2020 is a subset of Connecticut 305(b) Assessed Waters 2020. If any one of the assigned designated uses is categorized as NOT... -
State
DEEP Boat Launches
State of Connecticut —
Connecticut DEP Boat Lauch is a point feature-based layer that includes all DEP boat launch locations in the State of Connecticut. Types of boat launce in this layer... -
State
305b Assessed Lake 2020
State of Connecticut —
305b Assessed River, Lake, Estuary 2020: Connecticut 305b Assessed River 2020 is a 1:24,000-scale, line feature-based layer that includes rivers that have been... -
State
i12 Canals and Aqueducts local
State of California —
Dataset represents centerlines of major water project canals that are managed by local area government agencies or entities. This dataset does not contain major State... -
Floodplain FIRM Panels
District of Columbia —
Location and attributes for FIRM hardcopy map panels. The spatial entities representing FIRM panels are polygons. The polygon for the FIRM panel corresponds to the... -
County
Allegheny County Hydrology Lines
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
The Hydrology Feature Dataset contains photogrammetrically compiled water drainage features and structures including rivers, streams, drainage canals, locks, dams,...