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River Deltas form where large rivers meet marine waters. These deltas, built of fluvial sediment deposited at the coastline, are often broad and low-lying, and represent the marine extension of alluvial floodplains. Many have been heavily modified for agricultural and urban uses. Deltas can be distinguished based on the relative influence of waves, tides and river processes in their formation. (from Shipman 2008). Simenstad et al 2011 identifies 16 river deltas. Large coastal inlets wetlands associated with large watersheds (see Cereghino et al 2012) like Union, Tahuya or the Snow-Salmon, could be considered part of this population. PSNERP identifies recovery of lost delta tidal marsh and a primary target for restoration of Puget Sound nearshore ecosystems. A separate page describing Restoration of Puget Sound River Deltas provides an overview of goals, resources and efforts.
River Deltas
River Delta Topic Pages
- Fish sampling design in river deltas
- Development of tidal channels following restoration
- River Delta Channel Structure
- Delta sediment dynamics and vegetation
- Delta social dynamics
- River Delta Reference List
- Delta plain accretion rate among systems compared to sea level rise
- Effects of relict levees on sediment and debris deposition in delta systems
- Viability of assisted vs. unassisted development of tidal fresh swamp
- Factors preventing development of productive delta marsh vegetation
- Delta biodiversity and food webs
- Factors affecting long term composition and productivity of delta invertebrate communities
- Relative use of delta landscapes by valued bird populations
- Potential extent, function, and requirements for beaver habitat modification in delta landscapes
- Effects of introduced species on delta functions
- Relative importance of wetland composition on delta carrying capacity for juvenile salmonids
- Effects of delta landscape connectivity on realized function for juvenile salmon
- Tide Gate Effects on Salmonid Passage and Utilization
- Effects of local delta habitat structure on salmonid carrying capacity
- Influence of ecosystem service quantification on stakeholder preferences around restoration
- Distributary configuration effects on delta sediment deposition
- Fringing marsh resilience, wave attenuation and flood management
- Delta restoration and farm system function
- Delta Management for Waterfowl
- Nearshore Monitoring Strategy
- River Delta Restoration
- Snohomish Agricultural Resilience
- Snohomish Agriculture Resilience Plan
- Whidbey Basin Estuary Restoration Monitoring
- Runnel Excavation
Restoration Efforts
- Automating Landscape Connectivity for Puget Sound River Deltas and Pocket Estuaries
- Blue Heron Mitigation Bank
- Deepwater Slough Restoration
- Designing large wood placement in tidal marshes
- Effects of Exposed Tidal Flats on Water Temperature in the Snohomish Estuary
- Estuary Restoration for Northern Puget Sound Birds
- Evaluating Salmon Rearing Limitations in River Deltas
- Everett Marshlands Restoration
- Everett Riverfront Wetlands
- Fir Island Farm Restoration
- Fisher Slough Restoration
- Island Unit Estuary Restoration
- Leque Island Restoration
- Marysville Mitigation Site
- Maulsby Mudflat Reconnection and Restoration
- Mid-spencer Island Restoration
- Milltown Island Restoration
- Nisqually Refuge Restoration
- North Ebey Island Restoration
- Port Susan Restoration
- Qwuloolt Restoration
- Red Salmon Slough Restoration
- Skokomish Delta Restoration
- Smith Island Restoration
- Snohomish Delta Ecosystem Monitoring and Evaluation
- Snohomish Estuary Restoration Effects on Temperature, Salinity, and Tides
- Spencer Island Restoration
- Steamboat Slough Mitigation Site
- Swinomish Slough Restoration
- Three Crabs Restoration
- Tide gate effects analysis
- Tulalip Landfill Cleanup
- Union Slough Mitigation
- Union Slough Restoration
- Wiley Slough Restoration
- Zis a Ba Restoration
Other Efforts
- Chinook response to estuary restoration
- Coastal Blue Carbon Project
- Coastal Resilience to Climate Change
- Delta Metrics Project
- Estuary science to support adaptive management (Salish Sea 2011)
- Fuller 2014 DRAFT Stillaguamish sediment reuse meeting agenda
- Juvenile salmon response to landscape connectivity change within two Puget Sound river estuaries
- Nearshore Strategies Analysis
- Nisqually Delta Distributary Restoration Pre-design
- Nisqually River Delta Sediment Budget and Assessment of Opportunities to Recovery Sediment Supply to Sustain Marsh
- Predicting Rates of Channel Development
- Predicting Sea Level Rise Impacts on Ag Production
- Puget Sound Large River Delta Tidal Restriction and Wetland Mapping
- Puget Sound Marine Riparian Mapping
- Puget Sound Nearshore Ecosystem Restoration Project
- Puget Sound Tidal Restriction and Wetland Mapping
- River Delta Consortium
- Skagit Delta Tidegates and Fish Initiative
- Skagit Farm, Fish and Flood Initiative
- Stillaguamish Delta Dredged Sediment Re-use
- Stillaguamish Delta Dynamics Affecting Restoration
- Tidal Channel Reference Model
River Delta Documents[edit]
- Brophy & van de Wetering 2012 ni-les'ton tidal wetland restoration monitoring.pdf
- Cereghino 2014 delta consortium memo to watershed leads.pdf
- Griffith & Fuller 2012 stillaguamish delta restoration target DRAFT.pdf
- TNC 2012 port susan restoration as-built plans.pdf
- TNC 2012 port susan stewardship plan.pdf
- TNC 2013 fisher slough lessons learned.pdf
- TNC 2014 fir island farms construction strategy recommendations.pdf
- TNC 2014 port susan monitoring progress.pdf
- TNC 2017 fisher slough restoration summary.pdf
- Takekawa & Woo 2013 niqually delta monitoring proposal.pdf
- USACE 2011 qwuloolt environmental assessment.pdf
- WDFW 2015 delta restoration replacement lands.pdf
- WDFW 2015 monitoring adaptive management plan.pdf
- WWAA et al 2008 tidegates and fish initiative agreeement.pdf
- Weinerman et al 2012 fisher slough economic benefits.pdf
- Woo et al 2011 port susan monitoring plan.pdf
- Wright 2021 integrated floodplain management puget sound.pdf
- Yang & Khangaonkar 2007.pdf
- Zu Ermgassen et al 2016 oyster restoration objectives for ecosystem services.pdf