Projects

Project name Location Objective
Ft Columbia Tidal Reconnection Fort Columbia State Park, Chinook WA

Reconnect 96 acre wetland to full tidal influence through the installation of a new 12 feet by 12 feet culvert through hwy 101.

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Fee- Simon Wetland Enhancement Wildlife Center of the North Coast, Olney OR (Klaskanine River)

Restore 50+ acre of emergent and forested estuarine wetland through breaching and lowering of levees and restoration of tidal channels.  Project involves creation of a cross levee to protect adjacent property from flooding.

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Otter Point Estuarine Restoration Lewis and Clark National Historic Park, Astoria OR

Construct new set back levee and breach outer levee to restore estuarine processes to 33.5 acre wetland.

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Dibblee Point Wetland Restoration Dibblee Point, Rainier OR

Enhance 25+ acre wetland through creation of tidal channel and installation of a culvert through an access road to restore tidal circulation to Dibblee Point and an existing created pond.

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Gnat Creek Wetland Enhancement Gnat Creek Watershed, Brownsmead OR

Enhance 20+ acre estuarine wetland through breaching and lowering of levees and removal of an earthen dam restoring 1 ½ mile of stream channel.

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Karlson Island Wetland Enhancement U.S. Fish and Wildlife Lewis and Clark Wildlife Refuge, Knappa OR

Enhance 320 acre estuarine wetland through breaching and lowering of levees, treatment of invasive plant species, and re-vegetation.

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North Unit Sauvie Island Wetland Enhancement Oregon Department of Fish Wildlife Management Area, Sauvie Island OR

Enhance 200+ acre estuarine wetlands through alteration or removal of water control structures and other fill material.  Construction will be phased over several construction seasons.

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South Tongue Point Wetland Restoration South Tongue Point, Astoria OR

Restore 12 acres of estuarine wetland through removal of a tidegate and installation of a 10 feet diameter fish passable culvert through a city street.

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Colewort Creek Wetland Enhancement Lewis and Clark National Historic Park, Astoria OR

Enhance 40 acre estuarine wetland through marshplain lowering, creation of approximately 1 mile of new tidal channels, and extensive planting of beneficial native vegetation.

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Megler Creek Megler Creek

The Megler Creek project involves the replacement of an undersized 48-inch diameter corrugated metal pipe culvert, located beneath SR 401, with a concrete box culvert (25-foot span, 10-foot rise, 65-feet long). In addition to the removal of a fish passage barrier the project restored nearly 300 linear feet of Megler Creek to its historic estuarine condition.

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Megler Creek Restoration is one part of the Columbia-Pacific Passage Habitat Restoration Project, a multi-phase project sponsored by CREST involving three separate tributaries to the Columbia River estuary. The three sites are located within 7 miles of each other on the Columbia River shoreline in southwest Washington. The three sites of this large-scale restoration effort include Fort Columbia, which was restored in 2010 as part of Phase I of the project, Megler Creek, which was restored last winter (Nov 16-February17) as part of Phase II, and Hungry Harbor, which will be constructed during the third and final phase of the restoration strategy. Restoration is needed within this estuarine reach of the Columbia River because extensive historical alterations of the shoreline have eliminated the majority of off-channel foraging and rearing opportunities along this important migration corridor. Almost the entire lower river shoreline in Washington from Knappton Cove to the town of Chinook is riprapped to protect State Route 401 and Highway 101.  As a result, most of the historical estuarine tributaries that once served as off-channel habitat for migrating and spawning salmon have been disconnected from the Columbia mainstem by inappropriately sized and placed culverts. Fish presence studies conducted by NOAA on the Columbia River mainstem indicate that the North Channel is the primary route taken by outgoing juvenile salmonids in the Columbia River system. Therefore, reconnecting off-channel rearing habitat necessary for migrating salmonids along this widely used route is vitally important for improving salmonid survival for ESA listed fishes in the Estuary.

The Megler Creek project involves the replacement of an undersized 48-inch diameter corrugated metal pipe culvert, located beneath SR 401, with a concrete box culvert (25-foot span, 10-foot rise, 65-feet long). In addition to the removal of a fish passage barrier the project restored nearly 300 linear feet of Megler Creek to its historic estuarine condition. Restoration actions consisted of the excavation of accreted materials to pre-disturbance elevation and gradients, placement of large wood habitat structures, and extensive native plantings along Megler Creek.

The complete list of project partners and funders includes:

  • Bonneville Power Administration
  • National Park Service- Lewis and Clark National Historic Park
  • Washington State Department of Transportation
  • Washington Department of Natural Resources
  • Lower Columbia Fish Recovery Board
  • Salmon Recovery Funding Board
  • Pacific Marine & Estuarine Fish Habitat Partnership
  • United States Fish and Wildlife Service

Restore 12 acres of estuarine wetland through removal of a tidegate and installation of a 10 feet diameter fish passable culvert through a city street.

Enhance 200+ acre estuarine wetlands through alteration or removal of water control structures and other fill material.  Construction will be phased over several construction seasons.

Restore 50+ acre of emergent and forested estuarine wetland through breaching and lowering of levees and restoration of tidal channels.  Project involves creation of a cross levee to protect adjacent property from flooding.

Enhance 320 acre estuarine wetland through breaching and lowering of levees, treatment of invasive plant species, and re-vegetation.

Enhance 20+ acre estuarine wetland through breaching and lowering of levees and removal of an earthen dam restoring 1 ½ mile of stream channel.

Enhance 25+ acre wetland through creation of tidal channel and installation of a culvert through an access road to restore tidal circulation to Dibblee Point and an existing created pond.

Construct new set back levee and breach outer levee to restore estuarine processes to 33.5 acre wetland.

Reconnect 96 acre wetland to full tidal influence through the installation of a new 12 feet by 12 feet culvert through hwy 101.

Enhance 40 acre estuarine wetland through marshplain lowering, creation of approximately 1 mile of new tidal channels, and extensive planting of beneficial native vegetation.