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There are 6 projects that meet your search criteria.
Chocktoot delta in Sycan Marsh
Location: Lake County, OR Updated: January 27, 2009
Organization: The Nature Conservancy Primary contact: Craig Bienz
Hydrologic Setting Chocktoot Creek drains a 33.5 square mile watershed and historically discharged to the Sycan Marsh wetland complex. The climate of Chocktoot Creek watershed is semi-arid with an average annual precipitation of approximately 15 inches. Based on these characteristics and historical accounts, the hydrology of Chocktoot Creek is ephemeral with spring, snow-melt dominated runoff and additional runoff generated from summer thunderstorms. As early as 1940, the lower reach of Chocktoot Creek (Chocktoot Delta) was diverted away from Sycan Marsh to support grazing management. Chocktoot Ditch was constructed across the delta, perpendicular to Chocktoot Creek. The ditch diverted flows both north and south through a series of culverts and irrigation-type gates. Based on flow patterns and sediment deposition, the majority of flow was diverted south towards the Sycan River. Two other ditches run parallel to Chocktoot Creek and capture hillslope runoff onto the delta. These ditches divert captured flows to Chocktoot Ditch. Historically, these flows likely continued west into Sycan Marsh. Under present diversion conditions, the historical hydrologic and geomorphic functions of Chocktoot Creek within the Sycan Marsh basin has been greatly impaired, or all together eliminated—that is to recharge local groundwater which in turn has supported the Sycan Marsh wetland complex, and deliver sediment and nutrients to the marsh fringe to support a rich marsh environment. The project objectives are to: 1. Restore the hydrologic flows paths of Chocktoot Delta through the removal of 2.4 miles of irrigation diversion ditches; 2. Restore the hydrologic, geomorphic and ecologic functions of Chocktoot Delta; 3. Restore a channel with geometry and planform appropriate for the current hydrologic regime and a channel that provides for the movement and delivery of sediment, wood, and water.
Mahony Bar
Location: Marion County, OR Updated: January 27, 2009
Organization: DOGAMI- Mineral Land Regulation and Reclamation Program Primary contact: E. Frank Schnitzer
The Mahony Bar project is a proposal to extend and enhance an existing alcove at river mile 66 on the Willamette River. The existing alcove will be enhanced by placing Large Woody Debris (LWD) at the entrance to the channel to encourage localized scour and limit sediment deposition. The alcove extension was developed to connect the existing natural alcove to an abandoned floodplain excavation which currently strands fish. Fish ingress/egress to additional shallow floodplain ponds located above the alcove extension will be connected to the project by removal of soil berm left by miners.
Lambert Bend Stakeholders
Location: Yamhill County, OR Updated: March 02, 2009
Organization: DOGAMI- Mineral Land Regulation and Reclamation Program Primary contact: E. Franks Schnitzer
The Lambert Bend Stakeholder Group was formed in July 2004 and is a coalition of farm operators/landowners, gravel miners, and local, state and federal agencies. The group formed over a common concern regarding the future of the Lambert Bend meander on the Willamette River at river mile 64.5 through 62.5. The stakeholders are committed to the development of a river and floodplain management plan compatible with local geomorphic and hydraulic conditions. The Oregon Plan model of cooperation and voluntary actions to protect, enhance, and restore aquatic habitats and their watersheds has been adopted by the stakeholders. The project would primarily take place within a 220 acre NRCS Emergency Watershed Protection (EWP) easement where farming no longer is allowed. This project could provide a unique opportunity to remove a channel revetment and create off-channel habitat diversity. Channel bank erosion and bank retreat has been an on-going problem for decades. It began soon after the cessation of channel maintenance dredging. Yamhill County Improvement District No. 1 has worked to find a solution to the loss of farmland. As of 1995, the Yamhill County SWCD reported that the annual loss of soil at Lambert Bend was 80,000 tons/year and the Oregon Department of Agriculture estimated that this site contributed 60 percent of the soil erosion from the Willamette River channel banks between Corvallis and the confluence with the Yamhill River. This erosion trend is continuing. As of 2005, Yamhill County SWCD has measured the loss of 55.4 acres of farmland. At an average depth of 25 feet this erosion equals a loss of over 2.2 million cubic yards or about 223,000 truckloads of soil. Upstream alterations and the cessation of maintenance dredging over the last three decades have gradually allowed Lambert Bar to grow into a large alluvial feature, which is now controlling river behavior. This feature is over 20 feet tall and has closed over 50 percent of the active Willamette River channel. The bar has forced the river to erode the left (or west) river bank in order to supplement river conveyance capacity. The 1996 flood and subsequent high flows across farmland at the Lambert Bend meander has initiated a large “head cut” feature consisting of a 25-foot eroded wall that has progressed approximately 1000 feet in an upstream direction commencing at river mile 62.1. Although this process occurs naturally in unconstrained dynamic river systems, this headcut formation is the result of man’s activities upstream. Initial group objectives were completed in 2005. They were: 1) to complete temporary stabilization work to slow down meander cutoff formation and 2) to collect channel and floodplain data to better understand how current conditions developed as they relate to river behavior and future geomorphic trends. This work was completed by donations of time, money, equipment, and resources by members of the stakeholder group. The stakeholders are not suggesting the resurrection of maintenance dredging and do not consider this a viable solution to the channel instability. However, they do view this as an opportunity to re-think the abandonment of channel maintenance by development of alternate strategies in the form of a river and floodplain management plan. The stakeholders have identified the following components that should be included in the river management plan: ◊ Abate current erosion of high value Class I and II soils; ◊ Reshape and revegetate vertical channel banks; ◊ Enhance both local and regional sediment transport conditions so that sediment conveyance is improved through the meander and additional sediment storage sites are developed above and below the meander; ◊ Enhance and stabilize the Lambert Bend cutoff as an alcove for fisheries and as a flood conveyance channel. Identify other locations where the river can be reconnected to its floodplain and as such provide locations for sediment storage; ◊ Develop an integrated hydrologic control plan for downstream mine ponds. Connect two or more of the floodplain mine ponds to the channel to provide winter refugia for migratory fish and for floodwater conveyance; and ◊ Evaluate removal of Finnicum (Freshour) Dike at RM 64.25 and restoration improvements at Lambert Bar, each of which will provide additional channel complexity and habitat improvements. ◊ Complete a geomorphic, hydraulic and sediment transport analysis through the Lambert Bend project area. Use the results of the analyses to develop final designs and design solutions to enhance, restore and rehabilitate this river reach to current and anticipated future conditions.
Mt. Pisgah Habitat Management Plan
Location: Lane County, OR Updated: July 08, 2009
Organization: Friends of Buford Park & Mt. Pisgah Primary contact: Chris Orsinger
This project will draw from a variety of resources and data to forge a consensus on habitat conservation strategies for the 2,300-acre Howard Buford Recreation Area (HBRA, aka Buford Park), managed by Lane County Parks Division. We will draft a park-wide Habitat Management Plan that identifies conservation targets, conservation strategies and high priority habitat enhancement projects at HBRA, the largest public ownership within OCS Conservation Opportunity Area: WV-03a Mt. Pisgah Area.
Band-tailed Pigeon Mineral Spring and Forage Project
Location: Washington County, OR Updated: January 19, 2010
Organization: Arbor House Tree Farm Primary contact: Scott Hayes
Improve and Enhance Late summer & Fall Forage: Band-tailed Pigeons (Columba fasciata) currently feed on 1.5 acres (mostly wild Cascara and some Choke Cherry). This project includes growing large Douglas fir staging trees used by pigeons to stage prior to feeding. Currently about 35 pigeons feed in this area each year. Create Artificial Mineral Springs and Monitor Pigeon Activity: Currently there are no natural mineral springs on the property. In Summer and Fall 2009, an artificial water source with high concentrations of sodium (Na) attracted Band-tailed Pigeons. in 2010, guided by the US Fish and Wildlife Service, it is proposed that one or two artificial watering springs, or mineral soil areas, be monitored for use by pigeons.