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Historical Changes
to Estuaries, Spits, and Associated Tidal Wetland Habitats in the Hood
Canal and Strait of Juan de Fuca Regions of Washington State
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Report and Data
Available for Download
The Point No Point Treaty Council has completed a
study comparing historical and contemporary habitat conditions in
estuaries and other tidal marsh habitats of Hood Canal, western Admiralty
Inlet, and Strait of Juan de Fuca regions of Puget Sound.
The main objectives of this project were to “re-construct”
characteristics of the nearshore landscape as they existed prior to most
development, using primarily the 1800s United States Coast and Geodetic
Survey topographic sheets (“T sheets”), and to compare these
historical conditions to those that we see today using air photo
delineations of tidal wetland habitats.
Knowing what the nearshore looked like prior to shoreline
development and learning the causes of habitat changes during the past
100-150 years can provide clues as to how various habitats may have
functioned for salmon at that time compared with their function today.
We believe such information may be helpful to local communities and
governments in prioritizing and designing habitat protection and recovery
activities; additionally, the public can gain a greater appreciation for
the changes that have occurred in our estuaries and shorelines during the
past several generations. As
part of our study, we have included site specific as well as general
recommendations for shoreline habitat protection and recovery.
The State Salmon Recovery Funding Board (SRFB) and the Bureau of
Indian Affairs (BIA) funded this project.
If you have any questions regarding the project, including data
requests, please contact Steve Todd (360-297-6526; stodd@pnptc.org)
or Chris Weller (360-297-6532; cweller@pnptc.org).
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Click the following bulleted links to download portions of the Final
Report, including abstract, main report, and appendices.
All report files are in PDF format
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Abstract |
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Appendix
B-6: Port Townsend/Oak Bay Sub-region |
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Main
Report |
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Appendix
B-7: Hood Canal Entrance Sub-region |
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Appendix
A: Summary Tables |
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Appendix
B-8: North Hood Canal Sub-region |
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Appendix
B-1: Western Strait Sub-region |
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Appendix
B-9: Dabob Bay Sub-region |
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Appendix
B-2: Central Strait Sub-region |
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Appendix
B-10: Central Hood Canal Sub-region |
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Appendix
B-3: Eastern Strait Sub-region |
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Appendix
B-11: South Hood Canal Sub-region |
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Appendix
B-4: Sequim Bay Sub-region |
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Appendix
B-12: Hood Canal Hook Sub-region |
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Appendix
B-5: Discovery Bay Sub-region |
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Digitized historical maps (“T sheets”) are available for download as
GIS shapefiles (geodatabase available by request) in the projection NAD
1927 UTM Zone 10N (meters). These
can be viewed in ESRI ArcView, ArcExplorer, ArcGIS, and ArcInfo programs.
Click the bulleted link below, and select from the table the zipped
files (shapefile and metadata) for the T Sheets (by T sheet number) that
you are interested in downloading:
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Digitized Historical Maps (“T
sheets”)
Note: Georectified images of the
original T sheets and a composite digitized T sheet geodatabase are
available for much of the Puget Sound region, and can be downloaded from
the UW Puget Sound River History website (http://riverhistory.ess.washington.edu/)
Digitized current day habitat delineations are available for download as
GIS shapefiles (geodatabase available by request by contacting Nick
Fitzpatrick at 360-297-6508 or nfitzpatrick@pnptc.org) in the projection
NAD 1983 StatePlane Washington North (feet).
These can be viewed in ESRI ArcView, ArcExplorer, ArcGIS, and
ArcInfo programs. Click the
bulleted link below, and select from the table the zipped files (shapefile
and metadata) for the current day delineation (by sub-region) that you are
interested in downloading:
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Digitized Current Day
Habitat Delineations
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