Yakima Delta: Difference between revisions
| (4 intermediate revisions by the same user not shown) | |||
| Line 6: | Line 6: | ||
== Yakima River Delta/Bateman Island Project == | == Yakima River Delta/Bateman Island Project == | ||
The U.S. Army Corps of Engineers, Walla Walla District in cooperation with the Washington State Department Fish and Wildlife, Yakama Nation, and others are in the process of finalizing the plans for removal of an earthen causeway between Bateman Island and the shoreline in the City of Richland. The causeway is approximately 550 feet-long and 40-feet-wide and blocks flow along the southern side of the Yakima Delta. The causeway was built around 1940, prior to the construction of McNary Dam downstream in the Columbia River. Since construction of the causeway the, southern side of the Yakima Delta has become a backwater that supports non-native and native predatory fish and invasive plants. It also has increased stream temperature and created stagnant backwater conditions that contribute to agal blooms and unsafe water conditions. | |||
Mid-Columbia Fisheries Yakima River Delta/Bateman Island page. [https://www.midcolumbiafisheries.org/yakima-delta-assessment Link] | |||
'''Mid-Columbia Fisheries''' | |||
Yakima River Delta/Bateman Island page. [https://www.midcolumbiafisheries.org/yakima-delta-assessment Link] | |||
Yakima River Delta Habitat Assessment 2010 - Salmon Recovery Funding Board. [https://secure.rco.wa.gov/prism/search/ProjectSnapshot.aspx?ProjectNumber=10-1785 PRISM Link] | Yakima River Delta Habitat Assessment 2010 - Salmon Recovery Funding Board. [https://secure.rco.wa.gov/prism/search/ProjectSnapshot.aspx?ProjectNumber=10-1785 PRISM Link] | ||
| Line 20: | Line 24: | ||
'''US Army Corps of Engineers Project Info''' | |||
US Army Corps of Engineers Project Info | |||
US Army Corps of Engineers Yakima River Delta Ecosystem Restoration Project Page. [https://www.nww.usace.army.mil/missions/projects/yakima-river-delta-ecological-restoration/ Link] | US Army Corps of Engineers Yakima River Delta Ecosystem Restoration Project Page. [https://www.nww.usace.army.mil/missions/projects/yakima-river-delta-ecological-restoration/ Link] | ||
US Army Corps of Engineers 2021 Water Quality Monitoring at the Yakima River Delta Report. [https://www.hec.usace.army.mil/sustainablerivers/publications/docs/Yakima%20-%20Water%20quality%20monitoring%20at%20Yakima%20River%20delta.pdf Link] | US Army Corps of Engineers 2021 Water Quality Monitoring at the Yakima River Delta Report. [https://www.hec.usace.army.mil/sustainablerivers/publications/docs/Yakima%20-%20Water%20quality%20monitoring%20at%20Yakima%20River%20delta.pdf Link] | ||
Latest revision as of 13:53, 27 August 2025
Overview
The Yakima delta and confluence is a critical link to the entire Yakima River both historically and today. The Yakima River enters into the Columbia River at river mile 335 at the Tri-Cities in Washington State.
Yakima River Delta/Bateman Island Project
The U.S. Army Corps of Engineers, Walla Walla District in cooperation with the Washington State Department Fish and Wildlife, Yakama Nation, and others are in the process of finalizing the plans for removal of an earthen causeway between Bateman Island and the shoreline in the City of Richland. The causeway is approximately 550 feet-long and 40-feet-wide and blocks flow along the southern side of the Yakima Delta. The causeway was built around 1940, prior to the construction of McNary Dam downstream in the Columbia River. Since construction of the causeway the, southern side of the Yakima Delta has become a backwater that supports non-native and native predatory fish and invasive plants. It also has increased stream temperature and created stagnant backwater conditions that contribute to agal blooms and unsafe water conditions.
Mid-Columbia Fisheries
Yakima River Delta/Bateman Island page. Link
Yakima River Delta Habitat Assessment 2010 - Salmon Recovery Funding Board. PRISM Link
- Final report. PDF Link
Bateman Island Causeway Conceptual Design 2013 - Salmon Recovery Funding Board. PRISM Link
Bateman Island Causeway Concept Design Project 2013 - Salmon Recovery Funding Board. PRISM Link
US Army Corps of Engineers Project Info
US Army Corps of Engineers Yakima River Delta Ecosystem Restoration Project Page. Link
US Army Corps of Engineers 2021 Water Quality Monitoring at the Yakima River Delta Report. Link