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The Tidal Restriction network represents network and connectivity impacts of tidal restrictions in the Puget Sound Large River Deltas created using regional data, remotely sensed aerial imagery, and oblique shoreline imagery depicted as polylines. The CFS Tidal Restriction network is represented by polylines digitized at a 1:1000 scale using regional data, remote sensed aerial imagery (Hexagon Imagery Program 0.3 m 4-band aerial imagery collected during summer leaf on conditions from August to September in 2017) , and oblique shoreline imagery (DOE). Features were classified in a two-tiered nested structure that included a primary structure type and water crossing structure type (where applicable). Where features were not present in the regional data, aerial imagery was used to determine the feature type for primary and water crossing structures, or the feature was called Unknown. This database also contains details on feature type (e.g., road, dike/levee, culvert, bridge), status (e.g., present, removed, abandoned, breached), feature existence certainty, tidal connectivity impacts and certainty, fish passage and fishways, physical feature attributes (e.g., lengths, widths, elevations), feature installation and modifications, and review status, as well as whether the feature was copied from a regional data layer or identified using remotely sensed aerial imagery.
These classifications were assigned using the regional data and aerial imagery and rely on CFS staff interpretation and pre-determined classification rules for connectivity and feature type assignments where regional data were lacking. |
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The Tidal Restriction network represents network and connectivity impacts of tidal restrictions in the Puget Sound Large River Deltas created using regional data, remotely sensed aerial imagery, and oblique shoreline imagery depicted as polylines. The CFS Tidal Restriction network is represented by polylines digitized at a 1:1000 scale using regional data, remote sensed aerial imagery (Hexagon Imagery Program 0.3 m 4-band aerial imagery collected during summer leaf on conditions from August to September in 2017) , and oblique shoreline imagery (DOE). Features were classified in a two-tiered nested structure that included a primary structure type and water crossing structure type (where applicable). Where features were not present in the regional data, aerial imagery was used to determine the feature type for primary and water crossing structures, or the feature was called Unknown. This database also contains details on feature type (e.g., road, dike/levee, culvert, bridge), status (e.g., present, removed, abandoned, breached), feature existence certainty, tidal connectivity impacts and certainty, fish passage and fishways, physical feature attributes (e.g., lengths, widths, elevations), feature installation and modifications, and review status, as well as whether the feature was copied from a regional data layer or identified using remotely sensed aerial imagery.
These classifications were assigned using the regional data and aerial imagery and rely on CFS staff interpretation and pre-determined classification rules for connectivity and feature type assignments where regional data were lacking. |
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These data were digitized by staff at Cramer Fish Sciences as part of an Estuary and Salmon Restoration Program (ESRP) Learning Project to provide updated maps of current and potential tidal wetland habitats that will be used to evaluate estuary restoration effectiveness in a subset of Puget Sound’s large river deltas. These layers were created starting in Fall 2019 and were completed Summer 2021. This project is part of a joint effort, involving National Oceanic and Atmospheric Administration’s (NOAA) Salmon Habitat Status and Trends Monitoring Program (SHSTMP; Beechie et al. 2017; Stefankiv et al. 2019), Puget Sound Partnership’s (PSP) Common Indicators, and Washington Department of Fish and Wildlife’s (WDFW) Fish Passage teams. Any comments on data quality and determinations should be directed to Cramer Fish Sciences Staff: Jason Hall, Jason.Hall@fishsciences.net or Shelby Burgess, Shelby.Burgess@fishsciences.net. |
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The primary goal of this project is to support regional salmon and habitat/ecosystem recovery efforts by developing consistent and updated regional datasets for tidal restrictions, current tidal wetland extent, and potential tidal wetland extent; and to make these datasets readily available online to support tidal restriction removal planning and the restoration and conservation of tidal wetland habitats in Puget Sound’s large river deltas. Regional datasets used to inform the data inventory, contract information, and related documents can be found: https://secure.rco.wa.gov/prism/search/projectsnapshot.aspx?ProjectNumber=18-2250 |
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These data were generated using the available imagery and regional data and may not represent changes that have occurred since the publication date of the image or regional data. Only a subset of feature existence, type, connectivity, and other determinations have not been subject to regional data steward review or field verification. Physical characteristics, including areas and perimeters of tidal restriction and wetland features were generated using GIS analysis and may not be accurate. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations |
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Puget Sound Tidal Restriction Mapping |
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["biota","environment","transportation","elevation","imageryBaseMapsEarthCover","Puget Sound","Washington"] |
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en-US |
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